50371-001: Municipal Waste to Energy Project
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Environmental and Social Impact Assessment Report (ESIA) – Part 2 Project Number: 50371-001 October 2019 VIE: Municipal Waste-to-Energy Project Prepared by China Everbright International Limited The environmental and social impact assessment is a document of the project sponsor. The views expressed herein do not necessarily represent those of ADB’s Board of Directors, Management, or staff, and may be preliminary in nature. Your attention is directed to the “Terms of Use” section of this website. In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of or any territory or area. CHAPTER 5: MEASURES FOR PREVENTING AND REDUCING NEGATIVE IMPACTS ASSOCIATED WITH THE PROJECT 5.1. Measures for Preventing Negative Impacts of the Project 5.1.1. Measures for Preventing and Reducing Negative Impacts of the Project in Preparation Phase The project preparation stage takes place in a short time. Activities during this period were mainly cleared, and prepared for construction. However, there is also biomass but in small amounts. Mitigation measures during this period: - For machines such as lawn mowers, ground leveling machines, which must be tested before being put into operation. At the same time, maintenance and change of viscosity should be done to limit the generation of dust and hazardous waste into the environment. - For soil during the process of leveling, the aggregate will be concentrated in the shed, covered with roof, and will be utilized along with the amount of soil excavated during the construction process to level up the hollow areas. The amount of soil and rock will be contracted with the transport function out of the construction area in accordance with regulations. - For material gathering activities: Arrange the convenient gathering area in the process of construction, raw materials are arranged at the end of the wind direction, away from the campsite of the workers, with the roof to Limit the impact of wind and rain. Raw materials are used for 2-3 days, avoiding the concentration of large amount of materials waiting to be built to limit the impact on the environment. 5.1.2. Measures for Preventing and Reducing Negative Impacts of the Project in Construction Phase Appropriate organisation of construction solutions Based on the ground and construction items of the project "Can Tho solid waste treatment plant (daily waste)", the construction of the investor will comply with the following solutions: - Notification of project implementation process, project items, scale, progress, source of capital for local people and authorities of Truong Xuan commune. - Choosing suitable construction time, limiting the construction of works related to digging embankments during rainy and flood season will cause the phenomenon of rain water overflowing with wastes during construction affect the quality of surface water. Around the project area; Page 233 - The construction contractor will manage and organize the construction of the project. The Contractor is under the supervision of the Owner in the environmental protection process of the construction process. The General Manager of the Project Management Unit will be responsible for environmental protection; - The arrangement of transportation of raw materials and machinery in service of construction shall be carried out during off-peak hours, ensuring labor safety and traffic safety; - Equipping construction signs at the construction sites and boundaries of the project area (on the access road to the project area) for warning; - To protect the cultural works and beliefs of the people in the area, to limit the influence of the people; - On the construction site, the construction units shall comply with the regulations on labor hygiene and safety and electric safety; - The construction units perform shielding against dust and materials falling from heights; environmental hygiene during the process of construction and finishing works. - When constructing pile foundations for construction works, the construction units shall consider the selection of construction equipment and appropriate construction methods to avoid vibration, smoke, dust, noise and influence on other works. Management of pollution sources during construction - Establishment of the environmental management team of the project: The environmental management team consists of environmental experts and environmental technicians of the project, responsible for monitoring the state of the environment, identifying urgent issues and propose solutions for waste management. - Management of information on equipment and construction vehicles: management of fuel efficiency. Equipment that does not meet the standards allows for downtime or for maintenance, repair or upgrades. - Waste management: waste generated during construction includes soil, rock, crushed iron, unqualified concrete,etc. will be collected and reused in concreting and leveling into necessary areas. - Waste water management: Waste water is collected through equipment, systems and pre- treated. Do not discharge untreated wastewater into receiving waters. - Construction of environmental sanitation regulations for construction workers at the construction site; Regulations for dump of daily-life waste, organizing suitable camps to facilitate the collection and ensuring environmental sanitation for workers and the surrounding areas. Measures to clear the site after finishing construction - Requests bidders within 30 days after the completion of the construction must transfer all materials, excess components, construction waste to the prescribed place of the city, moving machinery and equipment in service of construction. Off site works. - The construction unit owner has issued regulations prohibiting the dumping of waste to clear the premises to neighboring areas. Page 234 Mitigation measures to air environment In this phase, to minimise the negative impacts on the air environment, the following measures are applied: Dust minimisation measures - Installing corrugated fence, 2-2.5m high to minimise dust spread to the environment and affect the people around the area. - Vehicles transporting raw materials must not be overloaded, to prevent shattering of material causing the release of dust into the environment. - The material in the project area is covered with limited wind to emit dust into the environment. - Arranging suitable transportation time, avoid transportation during peak hours. - Performing water spraying to dampen the construction site and transport route, strictly adhering to the time requirements to ensure humidity to limit dust release. - Frequency of watering: one time a day. Use a specialized vehicle with a capacity of 4.5m3. - Generally, in this area roads have been asphalted and paved, vehicles transporting materials are shielded so the amount of dust generated is limited. - Equipped with labor protection equipment for staff working directly. - When constructing high floors, cover the shields with grids to limit the dust, the construction materials spread out. Mesh construction: Inside is a mesh of synthetic fibers, PVC-coated outside. Sunshining protection content: UV 2%. Mesh size: ~ 2m x 100m, 3m x 100m. Figure 5.1 Work Shielding Measures Page 235 Assessment of feasibility: measures easy to apply, high processing efficiency. Emission reduction measures - Requiring that vehicles, means, machinery and equipment meet the conditions of environmental technical safety issued by the Vietnam Registry, operators must have driving licenses, training certificates prescribed; implement traffic safety measures when driving vehicles on the road. - Ensuring the speed of transportation when joining traffic. - Coordination of trucks and construction machines is rational, not concentrated, and at the same time to limit emissions to too large emissions in the same time and same 01 position. However, the density of construction vehicles depends on the layout of the building. - Prioritizing the material supply in Thi Lai district and some neighboring areas to reduce transportation distances and reduce raw material preservation in order to minimize dust and waste generation as well. Reduce the risk of problems. - Periodical inspection and maintenance of means of transport and construction equipment. - Encouraging contractors to build environmentally-friendly energy-saving GHG emissions reduction. - Using the right fuel for engine design - Not exceeding the prescribed tonnenage; - Providing personal safety equipment for workers such as hats, masks, workwear, etc. - Organizing wheel washing when entering and leaving the site to minimize dust generation. - Minimise emissions from backup generators: - Considering and use low sulfur fuels; - Periodic maintenance of generators. Minimise bad stench arising from workers' living waste: - Waste containers are tightly closed to avoid the spread of smell; - Regular cleaning and cleaning of garbage rooms; - Waste will be leased to daily transport collectors, not stored. - Propagate to raise awareness of people to keep living environment hygiene. - Assess the feasibility: the investor actively apply, the ability to perform high. Mitigation measures against impacts on water environment Project activities affect the water environment during this period due to the operation of bulldozers, material vehicles, household waste