TECO Mobility Grant

TECO Mobility grant

Development of an integrated Waste Water treatment system for improved resource recovery in East Kolkata Wetlands (EKW) Beneficiary of the grant‐ Abhishek Dutta Home Institution/Company (EU)‐ KU Leuven Campus Groep T, Leuven, Belgium Host Institution/Company (INDIA)‐ Jadavpur University, Kolkata, India Period of the stay in India‐ 21 July till 27 August 2018 (4 weeks)

1/ To understand the complexity of the network of waterways in East Kolkata Wetlands (EKW) –a wetland of international importance as per Ramsar convention (2002).

2/ To detect the point of entries of toxic influent (heavy metals) into the fish ponds of EKW and the possible metal degradation.

3/ To develop a neural network based bio kinetic model for evaluation of water quality of fish ponds and operational strategies for improved resource recovery.

4/ To provide a solution for an integrated urban waste water management system through solar‐assisted membrane bioreactors for Kolkata megacity.

1/ Detailed discussions were carried out with Prof. Dr. Chiranjib Bhattacharjee and Dr. Ranjana Das from Chemical Engineering Department of the host institution (Jadavpur University, Kolkata). A new partner insitution ‐ University of Engineering & Management (UEM), Kolkata was included in the project for increasing the scope of the project. Prof. Dr. Susmita Mukherjee and Dr. Sonali Paul from Biotechnology Department were involved and they trained a group of students for testing the water quality of the sampled water. 2/ Meeting was held with Mr. Sandipan Mukherjee Chief Technology Officer of East Kolkata Wetlands Management Authority (EKMA). The EKWMA is guided by the East Kolkata Wetlands (Conservation and Management) Act, 2006, the East Kolkata Wetlands (Conservation and Management) Rules, 2006, and the Wetlands (Conservation and Management) Rules, 2010.

Sampling locations were marked in consulation with the institutional professors as well as with the EKWMA authority for accordingly water samples collected.

Sampling point Bantala lock gate entry point GPS : 22° 31'31.19” N ; 88° 26'33.63ˮ E Sampling point Goltala fishery GPS : 22° 31'52.89ˮ N ; 88° 26'31.88ˮ E Sampling point Bantala leather tannery complex canal entering Goltala fishery GPS : 22° 31'52.89ˮ N ; 88° 26'31.88ˮ E Sampling point Ghatakpur pond (where villagers reside) GPS : 22° 30'32.51ˮ N ; 88° 29'20.47ˮ E Sampling point along canal opposite to Heritage Institute of Technology GPS : 22.5173° N ; 88.4187° E Sampling point at outlet of Bantala leather tannery complex GPS : 22.4984° N ; 88.5172° E Sampling point at Kestopukur canal GPS : 22.5717° N ; 88.4.65° E

Total #7 sampling points

TECO Project Tel: +39 06 9067 2540 Technological ECO‐innovations for the quality control E‐mail: [email protected] and the decontamination of polluted waters and soils Website: www.tecoproject.eu Main outcomes Parameters Sample 1Sample 2Sample 3Sample 4Sample 5Sample 6Sample 7 pH 6.4 7.08 6.33 7.12 6.54 7.06 6.43 Total suspended solids (g) 0.01 0.02 negligible 0.01 0.02 0.01 0.03 Total phosphate (mg/l) 60 86.67 200* 6.67 200* 33.33 286.67 BOD5 (mg/l) 19.4 19.04 24.7 57.15 18.6 16.67 19.05

COD (mg/l) 37.92 29.92 44.80 110.02 24.8 36.8 32

TKN (mg/l) 70 56 84 79.8 14 112 56

1/ pH seemed around neutral along with almost negligible detection of TSS. However this could also because of monsoon season causing of plenty of rainfall thus diluting the EKW water considerably. 2/ An extremely high value of phosphate in Kestopukur canal seems to be originating from inorganic sources such as industrial detergents. 3/ A high BOD level indicates the presence of organic matter. This has a considerable effect on fish production and supplementary feed cost in a sewage fed fishery. 4/ Above‐threshold concentration of heavy metal was not detected in the surface water. This could be due to the presence of water Hyacinth (Eichhornia crassipes) in the ponds. (note: all results were done in triplicate)

• Collecting year‐round experimental data for developing a biokinetic model resulting in an improved operational strategy. This model would be coupled with artificial neural network to find the location of toxic influent (heavy metals) in water ponds. This will help to improve the performance of EKW.

• Based on the collected data, a membrane‐based bioreactor would be designed and operated in lab‐scale. The performance parameters would then be optimized for a scaled up study.

• Using solar technology for energy supply to operate the membrane‐ based bioreactor would be investigated.

TECO Project Tel: +39 06 9067 2540 Technological ECO‐innovations for the quality control E‐mail: [email protected] and the decontamination of polluted waters and soils Website: www.tecoproject.eu Impact Wetlands are considered low‐cost alternatives for treating industrial, municipal effluents. The process of urbanization has recently targeted EKW. It has become vulnerable as most people are ignorant of the important purpose they serve. The wastewater in EKW offers a huge potential for resource recovery. An integrated urban waste water management system through solar‐ assisted membrane bioreactors is urgently needed for Kolkata megacity. While the waste water would be treated, the target would be resource recovery intensification and the Wetlands would be utilized without compromising its functionalities.

We acknowledge the help of : Er. Suvendu Pal Engineer, Bantala lockgate and Mr. Asit Bhattacharjee In‐charge officer, Goltala fishery, Government of West Bengal in providing us with on‐field knowledge of EKW and the practical problems involved within.

TECO Project Tel: +39 06 9067 2540 Technological ECO‐innovations for the quality control E‐mail: [email protected] and the decontamination of polluted waters and soils Website: www.tecoproject.eu EKW in the News Land use Area Substantial water 5852,14 hectare body‐oriented area Agricultural area 4718,56 hectare Productive farming 602,78 hectare area Urban/rural 1326,52 (u) + settlements 1234,99 (r) hectare Total area 12500,00 hectare

TECO Project Tel: +39 06 9067 2540 Technological ECO‐innovations for the quality control E‐mail: [email protected] and the decontamination of polluted waters and soils Website: www.tecoproject.eu