E2820 v1 REV
GEF Huai River Basin Marine Pollution
Public Disclosure Authorized Reduction Project Dongying City
EA Report
Public Disclosure Authorized Public Disclosure Authorized Public Disclosure Authorized
July, 2011 Contents
1 Project Description...... 1 1.1 Project Title...... 1 1.2 Project Location ...... 1 1.3 Project Development Objectives...... 1 1.4 Project Summary...... 1 2 Policies and Regulations ...... 2 3 Project Background ...... 3 3.1 Project Background ...... 3 3.2 Project Necessity...... 4 3.3 Industrial Policy and EP Policy Compliance ...... 6 4 Project Contents ...... 7 4.1 Contents of the Wetland Project ...... 13 4.1.1 Land Acquisition Status of the Project...... 13 4.1.2 Main Contents of the Project Construction...... 13 4.1.3 Sluice Gate Operation Optimization ...... 18 4.1.4 Public Utility Projects...... 19 4.1.5 Main Project Quantities...... 20 4.2 Agricultural Pollution Control and Rural Waste Management...... 21 4.3 The Establishment of Farmer Environmental Protection Association (FEPA) ...... 24 4.4 Capacity Building, Policy Studies, Project Management and Implementation Support ..24 4.4.1 EP Education and Training Center ...... 24 4.4.2 Capacity Building...... 25 4.4.3 Policy Study and Development...... 26 4.4.4 Project Management and Implementation Support ...... 26 5 Alternative Analysis...... 27 6 Environmental Baseline...... 31 6.1 Brief Introduction to the natural environment...... 31 6.2 Brief Introduction to the social environment...... 33 6.3 Status of regional environment quality and sensitive protection goals...... 34 6.4 The main environmental objectives...... 37 7 Environmental Impact Assessment...... 40 7.1 Project Analysis ...... 41 7.1.1 Processs flow...... 41 7.1.2 Analysis factors...... 42 7.2 The generation and emission of pollutants and control Measures...... 45 7.3 Environmental Impact Analysis...... 48 7.3.1 Environmental Impacts of wetlands during the construction period...... 48 7.3.2 Environmental Impacts of wetlands during the operation period ...... 52 7.3.3 Environmental Impacts of Agriculture and Rural Pollution Control Component...... 53 7.3.4 Environmental Impacts Analysis for the Training Center...... 57 7.4 Social Impacts Analysis...... 58 8 Public Participation and Information Disclosure ...... 61 8.1 Public investigation ...... 62 8.2 Summary of seminar and visit Advisory ...... 64 8.2.1 Summary of comments from enterprises ...... 64 8.2.2 Summary of expert advice...... 64 8.2.3 Summary of comments from pilot villages...... 64 8.3 Information Discloure...... 65 8.4 Conclusion...... 65 9 Conclusion and proposals...... 70 9.1 Conclusion...... 70 9.2 Measures and proposals...... 71
I 1 Project Description 1.1 Project Title GEF Huai River Basin Marine Pollution Reduction Project. 1.2 Project Location This project locates in the Dongying District and Kenli County of Dongying City, Shandong Province. 1.3 Project Development Objectives The project development objective is to demonstrate innovative and cost-effective water pollution control practices in Guangli river catchment of Dongying City contributing to pollution reduction in the Bohai Sea. 1.4 Project Summary Base on the water quality of Guangli River, distribution of pollutant sources and land utilization status within the river basin and in view of the development planning of Dongying City, it was selected that the wetland and sluice gate operation optimization projects will be constructed at Dongba Road in the downstream of Guangli River; Implement the agricultural and rural pollutant reduction project in the pilot villages along the Guangli River to reduce the pollution to the the Guangli River; Strengthen the capacity building, policy development and project management to increase the capacity of project management and PIU and achieve the sustainable development of this project. The total investment for the proposed project is 0.2570678 billion RMB. The proposed wetland project at Dongba Road includes ecological retention pool and free- surface flow wetland components with a total coverage of 2698.5 mus, including 73.5 mus and 2625 mus for retention pool and free-surface flow wetland respectively. It is planned the project will be commenced in Jan.2012 and the relative plants will be planted, and will start operation in 2013 with one year construction period. The agricultural and rural pollutant reduction project in the pilot villages will be commenced in Jan.2012 and operated in the end of 2014. The capacity building, policy development and project management work will be implemented throughout the project process. After the completion of the proposed project, the pollutant from the sources will be reduced effectively and the pollution to the surface water of Guangli River will be improved, the water sources will be protected, developed and utilized effectively and the pollution to the Bohai Sea will be greatly reduced with a total CODCr of 430 t/a and total
NH3-N of 129 t/a.
1 2 Policies and Regulations 2.1 Law and Regulations 1 The Environmental Protection Law of the P.R.C. 1989.12 2 The Environmental Impact Evaluation Law of the P.R.C. 2003.9 3 The Law on the Prevention and Control of the Air Pollution of the P.R.C. 2000.9 4 The Law on the Prevention and Control of the Water Pollution of the P.R.C. 2008.6 5 The Law on the Prevention and Control of the Noise Pollution of the P.R.C. 1996.10 6 The Law on the Prevention and Control of the Solid Waste Pollution of the P.R.C. 2005.4 7 The Clean Production and Promotion Law of thee P.R.C. 2002.6 8 The Water and Soil Conservation Law of the P.R.C. 1991.6 9 The Temporary Regulations on Pollution Prevention and Control of Huai River Basin. 2002.11.19 10 The Environmental Protection Regulation for Construction Projects of Shandong Province, document [No.99,2001] issued by Shandong People’s Congress. 2001.12 11 Environmental Functional Area Planning Scheme for Surface Flow of Shandong Province issued by Shandong EP Bureau. 12 The Strategic Planning for Water Pollution Prevention and Control of the Key River Basin Listed in the National Eleventh Five-year Plan. 13 The Development Planning of Effective and Ecological Economic Region for the Yellow River Delta. 14 The Overall Planning for the Environmental Protection of the Bohai Sea. 15 The Overall Urban Planning for Dongying City (from 2005 to 2020). 16 Ecological City Construction Planning of Dongying City. 17 The Management Approach for Water Pollution Prevention and Control of Guangli River Basin in Dongying City. 18 The Planning of Ecological Infrastructure for Central City of Dongying City. 19 The Overall Planning of Water System in Central City of Dongying City.
2 20 The Planning for Guangli River Comprehensive Improvement Project of Dongying City. 21 Notice on Water Quality Improvement of the Pollution Reduction in the River Basin, issued by Dongying Municipal Government [No.115, 2009]. 22 Notice on the Tasks of 2010 for the Guangli River Comprehensive Improvement Project, issued by Dongying Municipal Government. 2.2 Environmental quality standards 1. Class of Ambient air quality standard(GB3095-1996). 2. Class of Surfacewater quality standard(GB3838-2002). 3. Class of Groundwater quality standard (GB/T14848-93). 4. Class of Environmental quality standard for noise(GB3096-2008). 2.3 Pollutant emission standard 1. Class of Surface water quality standard(GB3838-2002). 2. Noise limits for construction site(GB12523-90). 3. Standard for pollution control on the storage and disposal site for general industrial solid wastes(GB18599-2001).
3 Project Background 3.1 Project Background
3 The ecological issues become more and more serious due to the wastewater distributed with high pollutant loads. With the larger scale sea development of the Bohai Sea, the contradictions between development and environmental protection become more seriously. Dongying City is the direct suffer from the serious pollution of the Bohai Sea. Only in 2008, the pollutant distributed by Dongying City to the Bohai Sea contains 2100t
COD, 393t BOD, 368t NH3-N, 85t total phosphorus and 48t total nitrogen. Under this kind of status, WB and GEF conduct cooperation to improve the ecology system pollution of the large sea. In order to reduce the pollution to the Bohai Sea, Shandong Province utilizes the GEF grant and local counterpart fund to manage and control the pollution to the Guangli River of Dongying City which sets a good example for other river basin pollution management in Huai River basin. Guangli River is the main drainage river of the central city in Dongying City, the river flows from Wangying Sluice of Nanzhan Dam of Yellow River to the central city with a flow path from west to southeast and then to the Bohai Sea after the combination with flood controlling rivers, the total length is 60km with a coverage area of 510 km2 which plays a important role in water supply, drainage, flood control and ecology improvement. Besides, Guangli River is the main wastewater catchment and nearly 40,000 ton/day of the wastewater was distributed to this river and its branches in 2009, more than 90% of that is urban daily life wastewater while the others is industrial wastewater. Due to the weak sewerage pipeline and the wastewater distributed to the river without treatment, the water of the Guangli River was seriously polluted. Though several improvement projects were conducted by Dongying City in recent years, the water quality of Guangli River still can not meet the Class V requirement. In order to rehabilitate the ecology system, increase the biodiversity, prevent the water loss and soil erosion, improve the climate and conserve the water source and improve the water quality of Guangli River and Bohai Sea, Dongying City proposed to construct this project supported by WB. 3.2 Project Necessity 1 Comply With the Development Planning of Effective and Ecological Economic Region for the Yellow River Delta. The Yellow River Delta locates in the entrance of the Yellow River which is to the south of the Bohai Sea and it is an important strategic site for the development of the Bohai Sea Region. China pays much attention to the sustainable development of the Yellow River Delta and the requirements listed in the Tenth and Eleventh Five-year Plans require to
4 carry out effective and ecological economy in this region. In order to promote the effective and ecological development of this region, China has developed and issued The Development Planning of Effective and Ecological Economic Region for the Yellow River Delta. It is defined that Strengthen the environmental protection by prevention and comprehensive improvement, EP standards and pollutant distribution controlling systems should be implemented strictly to increase the environment carrying capacity. Strengthen the industrial wastewater treatment; close the enterprises with high pollutant loads; prevent the industrial pollution diverting to the rural area. Strengthen the rural environmental protection, focusing on the livestock breeding pollution, soil pollution and rural solid waste pollution to control the rural pollution source effectively. Strengthen the pollution improvement to the key river basin and comprehensive improvement to the lesser river basin. Guangli River is a key river of Dongying City, but its water quality is far below the required Class V standard of Surface Water Quality Standard GB3838-2002 . In view of this issue, this proposed project will construct wetlands in the downstream of the Guangli River and implement rural pollution improvement in the pilot villages along the Guangli River which will improve the water pollution in Guangli River and Bohai Sea, so that complies with the Development Planning of Effective and Ecological Economic Region for the Yellow River Delta. 2 Comply with the Planning for the Wetlands Construction of Shandong Province. The planning defined that scientific waste treatment approaches should be adopted during the river improvement process, not only focus on the security of the water quality but also the economic development and social stability. That is to say the project shall focus on each rivers of the basin and follow an integrate thought of project objectives, total quantity, project and investment, adopt a strategy of improvement, utilization and protection, comprehensive utilization of economic, legal and scientific and technology approaches and make full use of the roles of market mechanism, macro-control mechanism and public participation mechanism to promote the economy structure adjustment within the basin, urban infrastructure construction, clean production, pollution improvement and ecology protection works, then promote the comprehensive pollution improvement works within the basin. Wetland is composed of water, matrix under permanent or intermittent saturation, aquatic life and aquatic plants which is a complex ecology system with high productivity and great activity. As an important habitat for a variety of livings, it also has the following
5 functions, such as water conservation, flood and water logging control, water purification and pollutant degradation, etc. Wetland is one of the most productive ecology systems in the world and it is the cradle for biodiversity and storage place for important genetic substances. Artificial wetland is designed to simulate the structure and functions of natural wetlands which is composed of matrix under permanent or intermittent saturation, emergent plants, submerged plants and animals, utilize appropriate shape, size, water distribution and collection systems to ensure a good water flow and high pollutant removal efficiency. There are a number of successful examples and adequate practice experience in utilizing wetland to purify the water quality in Shandong Province, such as wetland for Jining WWTP with a coverage area of 1500 m2 under the joint construction of Shandong EP Bureau and Jining Municipal Government in 2003; Xinxue River Wetland for Water Purification Project with a coverage area of 1500 mus under the joint construction of Shandong EP Bureau, Jining Municipal Government and Weishan County Government in 2005. All of the above wetland projects are operated with a good outcome. So this proposed project complies with the Planning for the Wetlands Construction of Shandong Province. 3 Comply with the Planning of Yellow River Water City- Water Pollution Improvement Project for Dongying City. It is clearly defined in the Comprehensive Management of Water and Air Pollution Implementation Scheme for Environmental Protection Plan of Dongying City that the river basin water pollution prevention and control work shall be strengthened, and one of the projects is the construction of Dongba Road Wetland Project which is the wetland construction of this proposed project, so this proposed project complies with the Planning of Yellow River Water City- Water Pollution Improvement Project for Dongying City. 3.3 Industrial Policy and EP Policy Compliance 1 Industrial Policy Compliance The proposed project is surface water –Guangli River Water Purification Project, it is an environmental protection and improvement project which is not the restricted or obsoleted project that listed in Guiding Catalogue of Industrial Structure Adjustment (2011 version). Therefore, it is a permitted construction project and in line with the requirements of national industrial policies. 2 EP Policy Compliance
6 According to the document [No.131, 2007] issued by Shandong EP Bureau, this proposed project complies with the environment protection law and regulations and the local planning. If the pollutant discharged after meeting the relative standards, there will be no impact on the local pollution improvement tasks. The proposed project area is not within the scope of forbidden approval or restricted approval, so this proposed project is in line with the requirements of the document [No.131, 2007] issued by Shandong EP Bureau.
4 Project Contents The project development objective is to demonstrate innovative and cost-effective water pollution control practices in Guangli river catchment of Dongying City contributing to pollution reduction in the Bohai Sea. The project contents mainly include: 1 Wetland and Sluice Gate Operation Optimization
7 With the wetland of Dongba Road, part of the river water will be treated and reused by Huanghe Road water system; and the pollutant will be reduced by the sluice gate operation optimization; through the distribution, diversion, storage of the natural water flow, regulation of the water level and prevention of encroachment of sea water to ensure the management and utilization of the sluices. 2 Agricultural Pollution Control and Rural Waste Management Through the effective technology and management to carry out the agricultural pollution and rural waste management, then to reduce the pollutant loads in the selected area. 3 Capacity Building and Policy Studies Through construction of EP Training Center to increase the public sense of EP and the public participation to the project implementation process and increase the support to the project from society and private agents; Through the training to enhance the capacities of the staffs for project implementation and with the relative developed policies to solve the issues occurred during the project implementation process, then achieve the proposed objectives of the project. The EIA recommendations, EIA of policies, laws and regulations need to be included in this whole process of capacity - building and policy development. 4 Project Management and Implementation Support Through the project management to increase the capacity of the project management staffs when developing the management policies and project promotion models; implement the project objectives monitoring through the monitoring evaluation. The above wetland system construction and agricultural pollution control and rural waste management project are the main physical project components of the proposed project. See Figure 4-1 for the locations of the Wetland of Guangli River and Pilot Villages of Agricultural Pollution Management Project. See Figure4-2 for the plain view drawing of the Artificial Wetland project. See Table 4-1 for the components of the proposed project.
Table 4-1 Components of the Proposed Project components contents project
8 including ecological retention pool, a free-surface flow wetland, a gated overflow weir and pumping station and other counterpart facilities; Wetland of 4 3 the designed treatment capacity is Q1=7.0×10 m /d March Dongba 4 3 to Nov. ,Q2=2.5×10 m /d Dec.-Feb. Road The treated outflow will be reused if meet the requirement of Class V of Surface Water Quality Standard GB3838- 2002 . Main Project Agricultural Pollution 1 Agricultural pollution management in 4 pilot villages Control and 2 Discharge of cropland treatment in 4 pilot villages Rural Waste 3 Human Wastewater Treatment Project in 8 pilot villages 4 Rural solid waste treatment project in 2 pilot village Management Project Capacity Through the training to enhance the capacities of the staffs for project implementation and with the relative developed Building and Dissemination policies to solve the issues occurred during the project Policy implementation process, and then achieve the proposed and Education Studies objectives of the project. And construct a training center. Project Through the project management to increase the capacity of Project the project management staffs when developing the Management management policies and project promotion models
See Table 4-2 for the investment of the proposed project.
Table 4-2 Investment of the Proposed Project 104 USD 104 RMB Sub-components GEF Counterpart GEF Counterpart total total Grant Fund Grant Fund A. Wetland and Sluice Gate Operation 210 2026.89 2236.89 1386 13377.45 14763.45 Optimization Wetland of A1 210 1267.03 1477.03 1386 8362.44 9748.44 Dongba Road Sluice Gate A2 Operation 0 90.9 90.9 0 600.0 600.0 Optimization structure A3 demolition 0 668.9. 668.9 0 4415.01 4415.01 compensation B. Agricultural Pollution Control and 140 57.17 197.17 924 377.31 1301.31 Rural Waste Management agricultural B1 pollution control 4 17.28 15.9 33.18 114 104.97 218.97 villages
9 rural waste B2 management 8 78.05 41.27 119.32 515.1 272.4 787.54 villages B3 FEPA 10villages 44.67 0 44.67 294.8 0 294.8 C. Capacity Building 100 524.2 624.2 660 3460 4120 and Policy Studies education and C1 0 465.2 465.15 0 3070 3070 training center C2 capacity building 20 40.61 60.61 132 268 400 C3 policy studies 80 18.48 98.48 528 122 650 D. Project Management and Implementation 50 177.28 227.28 330 1170 1500 Support project D1 implementation 10 35.45 45.45 66 234 300 support monitoring and D2 20 10.31 30.31 132 68 200 evaluation project D3 20 131.52 151.52 132 868 1000 management others 0 609.39 609.39 0 4022.01 4022.01 3894. Total 500 3394.97 3300 22406.78 25706.78 97
10 Figure4-1 Location of the Proposed Project
11 Figure4-2 Location of the Wetland Project
12 4.1 Contents of the Wetland Project 4.1.1 Land Acquisition Status of the Project The total land acquisition area for the project is 2698.5 mus, including 73.5 mus and 2625 mus for west ecological retention pool and east surface flow wetland respectively. Only the fish ponds and saline-alkali fields are acquired within the land acquisition area, and these lands are under a low utilization rate with a low crops production. Since the project locates in the downstream of the river and the land acquisitions are in line with the national policies, so the current land status is good for the smoothly implementation of the wetland project.
4.1.2 Main Contents of the Project Construction According to the regional hydrogeology, water quality, pollution sources distribution and land utilization status, and taking the development planning of Dongying City and the representativeness and promotion of wetland project into consideration, it is selected that the wetland project will be constructed at Dongba Road in the downstream of Guangli River. 1 Process Scheme The process of ecological retention pool + surface flow wet land is selected for the water purification project of Dongba Road Wetland. Through the construction of sluice gate in the north bank of Guangli River, the polluted water will be diverted to the bottomlands in the wets of Dongba Road and then the bottomlands will be transformed into ecological retention pool. The polluted waster will be discharged to the surface flow wetlands in the east of Dongba Road after the preliminary treatment in the retention pool. The pollutant of the wastewater will be reduced by the metabolic activities of microorganisms and aquatic plants existed in the retention pools and surface flow wetlands. The outflow will meet the Class V standard through the triple synergy of physical, chemical and biological roles of the wetlands. The outflow will be pumped into the water systems in Huanghe Road by the new constructed pump station once the outflow meets the required water quality standards. See Figure 4-3 for the detailed wastewater treatment process.
13 SurfaceFlow Wetland A
Wate Class Class Class Water Lifting r Ecological river of pump Retention Guang station Pool Class Class Class
SurfaceFlow Wetland B
Figure 4-3 Wetland Treatment Process
14 2 Identification of Treatment Capacity The wetland coverage area is 2698.5 mus. Taking the useful land area of the wetlands and the water quality characteristics of Guangli River into consideration, the water load is defined as 4cm/d and 1.5cm/d for summer and winter respectively. So the treatment capacity of Dongba Road Wetland is as the following: 4 3 Q1=7.0×10 m /d March to November 4 3 Q2=2.5×10 m /d December to February 3 Identification of the Inflow and Outflow Water Quality According to the Planning of Yellow River Water City- Water Pollution Improvement Project and taking the current water quality of Guangli River and the outlet will be discharged into water systems in Huanghe Road for landscaping into consideration, the outlet water quality is defined as Class V to meet the requirements of Surface Water Quality Standard (GB3838-2002). See Table 4-3 for the detail indicators for the water quality of inflow and outflow. Table 4-3 Designed Inflow/outflow Water Quality of Dongba Road Wetland (mg/L)
Pollutant CODCr BOD5 NH3-N TP Inflow water 60 20 8 1 quality(mg/L) Outflow water 40 10 2.0 0.4 quality(mg/L) According to the investigation, the runoff volume of Guangli River is 50 million to 60 million m3/a. The Dongba Road Wetland treatment volume takes 42.6% and 15.2% of the daily runoff volume of Guangli River for March to November and December to February respectively. See Table 4-4 for the pollutant reduction volume of Dongba Road Wetland. Table 4-4 Pollutant Reduction Volume of Dongba Road Wetland
Pollutant CODCr BOD5 NH3-N TP Inflow water 60 20 8 1 quality(mg/L) Outflow water 40 10 2.0 0.4 quality(mg/L) Reduction 430 215 129 12.9 Volume(t/a) 4 Ecological Retention Pool The ecological retention pool will be constructed in the bottomlands with a length of 350m from east to west and a width of 140m from south to north, the retention pool locates in the west of Dongba Road, north of Guangli River bank and south of Dongxin Oil
15 Company. Base on the site conditions, a sluice gate for wetlands, wet weir and north weir will be constructed in 300m place to north bank of Guangli River and west of Dongba Road. The bottom level of the retention pool will be adjusted to plant various kinds of hydrophytes and the solar aeration machines and floating islands will be set up in the deep water. The outflow of the retention pool will be discharged into the surface flow wetlands by the pipelines. Weir The weirs will be constructed in the west and south of the retention pool with a top width of 5m, height of 2m, slope ratio of 1:3 and a total length of 440m. A 1m tall slope protection wall will be constructed in the slope against the water which is 0.5m above the designed water level and the plant the local plants in the slope. Aeration Facilities It is designed that four solar pumping devices will be equipped to exchange the surface water and the bottom water and to increase the dissolved oxygen of the water, then increase the pollutant reduction rate. Hydrophytes The lotus and water lily will be planted in the water area with a deepth from 0.6m to 1.5m and hornwort, vallisneria, hydrilla and crispus in the water area with a depth from 1.5m to 2.0m. Different plants will be plant in different area to reduce the pollutant. The floating island will be construted in the deep water and the different plants will be planted there, such as canna, loosestrife, bulrush, iris, water chestnut and other plants 5 Surface Flow Wetland Different levels of the surface flow wetlands will be constructed within 500m of the east of the Dongba Road with a length of 3500m from the south of north bank of Guangli River to the north of bottomlands Huanghe Road, the outflow of the wetlands will be discharged into the water systems of Huanghe Road by the lifting pump station. The wetlands system contains section A and section B in a parallel connection way, and there are three levels of wetlands for each section in a series connection way. The distribution channel will be constructed in the primary wetland units of section A and section B. In order to strengthen the wastewater treatment in primary and secondary wetland units, the earthwork, origin embankment and river bed height are adjusted and the bulrush and other local wetland plants are planted with a density of 6 to 9 plants/ m2 in the designed water depth from 0.5m to 0.8m. Potamogeton, crispus and other submerged
16 plants are planted in the deep water with a designed depth from 0.8m to 2.5m, and then the pollutant will be deep purified in this section. The deep water section without emergent aquatic plants and section mixed aquatic plants will be set up in the tertiary wetland to ensure the weland has an open surface of 30%, so that can increase the reoxygenation capacity and landscaping effectiveness of the wetland system. The floating-leaved plants, submerged plants and some aquatic plants are planted in this section, such as bulrush and cattail in the left bank, lotus, water lily and water chestnut will be planted in the shallow area and P.pectinatus Linn and Potamogeton algae will be planted in the deep water area. Through the optimized combination of the plants, the wetland can be operated steadily and increase the biodiversity. Hydrophyte See Table 4-5 for the hydrophytes planted in the surface flow wetlands. Table 4-5 Designed Hydrophytes in the Surface Flow Wetlands selected region plants scope coverage density species shallow area Coverage humidogene Bamboo reed, from 0m to 139.5 mus rate of 40- Emergent plant cress, calamus 0.3m 45% area along emergent Bulrush, cattail, the bank planted in the 15~25 aquatic eel grass 1700 mus 1m depth water plants/m2 plant planted in the Coverage floating- Wild chestnut, 1.5m depth 262.5 mus rate of 45- Middle leaved plant water lily, lotus water 50% submerged Potamogeton planted in the Coverage area Submerged algae, hornwort, 1.5m depth 393 mus rate of 60- plant crispus water 65% Sluice Gate The inlet volume flow into the distribution channel of Section A and B will be controlled by the sluice gate. At the same time, two sluice gates will be constructed in the gated overflow weirs to control the water level of the wetlands. The sluice gate is made of reinforced concrete with two holes, the net width is 1m and the gate height is 1.5m. Distribution Channel Adopting the overflow weir to distribute the water will ensure the outflow from the WWTP can flow into the wetlands evenly. Two C30 reinforced concrete distribution channel will be constructed with a width of 1.5m, height of 1.05m and length of 200m. Weir and Partition of Wetlands
17 The main function of the weir is to maintain the water treatment coverage of the wetland water quality improvement project and to ensure the treatment effectiveness. The outer weir is constructed in a slope by soil compaction structure, the required earth comes from the adjustment of the wetland bottom and the slope rate is 1:3 for the outer weir with a top width of 5.0m and added height is 1.5m to 2m with a total length of 7500m. Ecological Slope Protection The ecological slope locates in the wetlands weir and partition. According to the status of the channel and partition and the hydraulic conditions, the slope protection technique and the root stability ecological slope protection technique are adopted to smooth the natural embankment and protect the natural plants, and then the flood discharge space will be expanded. The length of the slope is about 8000m with a top width of 3.0m and has 5333 trees with grass coverage of 96000 m2. Gated Overflow Weir The weir can maintain the wetland in a high water level and collect water evenly. The gated overflow weirs in section A and B have a same length of 200m, the top width is 2.0m and the height of the weir is 1.0m with a slope rate of 1:3. The inside of the slope is made of compacted clay and the outside is constructed in a masonry structure. 6 Sluice Gate and Pump Station An entrance gate will be constructed in 300m away from the west Dongba Road and north bank of Guangli River to draw the water of Guangli River to retention pool. A lifting pump station will be constructed in the outlet of the wetland, then the outflow of the wetland can be pumped into the watere systems at Huanghe Road and used for landscaping. 7 Counterpart Facility A comprehensive administration building will be constructed in the outlet of the wetland to manage the daily work and disseminate the wetland project to the public. The building has two floors with a construction coverage area of 480m2 and a parking lot was constructed with a coverage area of 300m2. A wooden platform was constructed in the wetland area for birds view with a width of 1.5m and a total length of 1500m. 4.1.3 Sluice Gate Operation Optimization The pollutant discharging will be reduced through the sluice gate optimization; through the distribution, diversion, storage of the natural runoff, regulation of the water level and prevention of encroachment of sea water to ensure the management and
18 utilization of the sluices. Water Body of Guangli River Before the water was discharged into the sea, the water will first flow into Dongba Road Wetland for treatment by No.1 Gate and then flow into the water systems at Huanghe Road by No.2 Gate, and then flow back to Guangli River. Other Water Circulations The hydraulic condition and water self purification ability will be improved by the periodically water supplement from the upstream (e.g. Wugan Channal) and water circulation measures. It will also contribute the continous operations of the downstream wetland. During the flood period, the wastewater generated after the first flood should not be concentrative discharged so that can avoid the emergent water pollution for the river downstream and the entrance to the sea, and can reduce the pollution to the Bohai Sea. With the regulation and self purification functions of Minghai Sluice Gate and Minghong Sluice Gate in Guangli River, Minghui Sluice Gate in Gengjing Reservoir, urban water systems and wetlands can avoid the wastewater concentrative discharging after the first flood and reduce the pollution to the Bohai Sea. 4.1.4 Public Utility Projects Water Supply After the operation of the wetland project, the comprehensive administration building will in charge of the plant supplementing, diseases and pests prevention and control, plant harvest and transportation, plant selling, inflow and outflow quality and volume monitoring, inflow volume regulation and other administrative work. There are 5 administrative staffs in all. During the plant harvest time, the local peasants will be hired to harvest the plants, but the employment number depends on the plant volume. The water volume needed for one administrative staffs is about 80L/d, the water volume for operation period is about 0.4m3/d and the annual need water volume is 146m3, all the water needed is supplied by the municipal water supply pipeline networks. Drainage The storm water and wastewater separation system is adopted for the drainage of the proposed project. The storm water will be discharged to the nearest water body and the outlet was set up dispersively.
19 The septic tanks will be established in the waste outlet of the wetland administrative department and the waste will be collected and treated together and then transported by the vacuums of the sanitation department periodically. Heating The wetland administrative department will use air conditioners for heating in winter. 4.1.5 Main Project Quantities See Table 4-6 for the key structure, attached structures and materials of the project Table4-6 List of the Key Structure, Attached Structures and Materials
NO. Name Model Quantity Note I. Sluice Gate and Lifting Pump Station 1 Sluice gate 1 Lifting pump 2 1 station II. Ecological Retention Pool Floating-leaved 1 18.4mus plant 2 Submerged plant 25.7mus Earthwork 3 29400m3 adjustment 4 Weir Top width:5m, Height:2m 440m 5 Pitched slope 141m3 Hollow bricks for 6 980m2 grass planting Cemented 7 980m stonewalling III. Surface Flow Wetland Emergent aquatic 1 1700mus plant Floating-leaved 2 262.5mus plant 3 Submerged plant 393mus 4 Inlet pipeline Concrete pipe, D=2000mm 300m 5 Controlling gate Width:2m, height: 1.5m 4 C30 Distribution reinforced 6 Width:1.5m, height:1.05m 400m channel concrete structure Water level CBZ 7 height:1m, Width:1m 4 regulation gate
20 Top width:5m, height:2m, slope 8 Weir 7500m rate:1:3 Top width:3m, height:2m, slope 9 Partition 3500m rate:1:3 10 Riprap Diameter:10~20cm 2250m3
11 Culvert pipe D=800mm h=2.0~3.0m 900m 12 Ecology protection Top width:3m, height:2m 5000m Trees for slope 13 Diameter over10cm 5333 protection 14 Lawn 96000m2 Top width:2m, height:1m, slope 15 Overflow weir 400m rate: 1:3 Earthwork 16 1150000m3 adjustment IV. Counterpart Facility Comprehensive Bricks 1 administrative Two floors S=480m2 concrete building 2 Wooden platform Width:1.5m 2000m Birds viewing Wooden 3 S=30m2 9 house structure Online water Bricks 4 5.1m×6.0m 1 quality monitoring concrete 5 Parking lot S=300m2 Reinforcement of Diameter:3m thickness:50cm 6 125 telegraph pole Cemented stone
4.2 Agricultural Pollution Control and Rural Waste Management In order to reduce the agricultural and rural wastewater pollution to Guangli River, It is proposed that several pilot villages will be selected to conduct the pollution control and management project along Guangli River 1 Agricultural Pollution Control and Management(4 pilot villages) Pilot Villages Selection The pilot villages are Shaotou Village in Xindian Street of Dongying District, Wangying Village, Shangzhuang Village and Huangdian Village in Shengtuo Town of Kenli County. Controlling Measures of the Pilot Project
21 The agricultural pollution control measures for the pilot villages include the following: Application of the fertilizer pollution prevention and control technology for cultivation, application of the pesticide pollution prevention and control technology for cultivation and promotion of the plastic sheet pollution prevention and control measures. Through the introduction and implementation of the above measures, then we can reduce the fertilizer, pesticide and plastic sheet pollutions to the water quality of Guangli River. See Table 4-10 for the detailed pollution prevention and control coverage area and the estimated investment. Table 4-10 List of the Estimated Investment for Agricultural Pollution Control and Management Project Agricultural Pollution Control and Management Coverage Cost ten Technology area hm thousands Chemical fertilizer replacement and accurate 60 15 fertilizer application for wheat Chemical fertilizer replacement and accurate 60 15 fertilizer application for corn Accurate fertilizer application and reduction for 33 0 rice Soil test and fertilization technology for cotton 150 85
Moth-killing lamp 245 4 Technology guiding, dissemination and training -- 48 fee