Evolution of the Urban Wastewater Bio-treatment and Reuse System of East Kolkata Wetlands, India: an Appraisal

Nadella, Anusha; Sen, Debabrata

doi:10.1007/s13157-021-01509-3

Cited by 6 publications

(2 citation statements)

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“…The surrounding districts of KMA, the highest production of sh found in North 24 Parganas i.e 1502176.5 quintals. But shes and foods in KMA are often found contaminated with heavy metals, chemicals, and pesticides and the area of cereals become shrinking due to the grave impact of industrialization and urbanization (Nadella & Sen, 2021).…”

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confidence: 99%

“…The maximum density of roads found in Khardah municipality followed by Baidyabati, Kamarhati and Rishra municipalties(BAES, 2011). (B 4 ) Total sewerage generation per day and (B 5 ) Per capita Sewerage generationThe inappropriate management of huge amount of domestic, agriculture and industrial waste and untreated poses serious challenges to environment and human health(Nadella & Sen, 2021…”

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Wetland health assessment using DPSI framework: a case study in Kolkata Metropolitan Area

Mohibul¹,

Sarif²,

Parveen³

et al. 2023

Environ Sci Pollut Res

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The wetland area has been threatening and degrading due to unplanned built up expansion, improper management of solid waste and sewerage water, waste water from agriculture and industrial sector, and siltation. The Kolkata Metropolitan Area is considered one of the most vital regions in terms of wetland ecosystem. Therefore, the aim of present research is to assess the factors responsible for wetland health and analyze their dynamicity by using the Driving force-Pressure-State-Impact (DPSI) framework. To assess the wetland health for the timeframe between 2011 and 2020, seventeen indicators and four sub indicators were selected to compute the weight through Analytic Hierarchy Process (AHP). The results manifested that most municipalities was in "healthy" category under pressure (P) part in 2011 while uctuation were observed at multiple stations from 2011 to 2020 under impact (I) section. The state (S) part showed the overall transformation in water, vegetation and built-up class from 2011 to 2020. So the most dominating category was "healthy", followed by "unhealthy" and "poor". The highly signi cant factors that deteriorate the health of wetland were (B1) Population density, (B3) Road density, (B5) Per capita Sewerage generation, and (B7) Per capita solid waste generation, (D1a) BOD, (D1b) DO, (D1c) pH and (D1d) Total Coliform. The outcome of the research will contribute to develop for sustainable conservation and management of wetland ecosystem in urban area. Moreover could be applied at global level with similar geographical conditions.

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confidence: 99%