Abstract
In India, of the 233 Class-I cities situated in 14 major river basins, only 24% are having proper sewerage systems and Class-II cities do not have any sewerage system for collecting domestic wastewater. Just collection of the sewage is not enough; further treatment facility to purify the sewage is also a necessity. So, all these city wastewaters are naturally taken to the nearby rivers and lakes by nallas and odhas (streams—natural drains). These natural drains in the cities are serving as sewerage lines. The studies published by CPCB in 2013 reveal the pathetic condition and inadequacy of pollution treatment infrastructure in India. Then Planning Commission has suggested developing “treatment zones” in city drains. It is a very innovative approach acknowledged by Government of India which needs to be strengthened further by very scientific implementations by scientists who have mastered the art of eco-treatment of polluted waters. From the case studies of Udaipur’s ecological restoration of Ahar River and Allahabad’s ecological treatment Rasoolabad Stream Complex, it can be said that such types of ecotechnological in situ treatment—Green Bridge—system deliver more than expectations in the form of extended social and ecological capitals. The capital and operational costs of ecological treatment processes are comparatively less than conventional engineering approaches.
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References
Central Pollution Control Board (2013) Performance evaluation of sewage treatment plants in India funded under NRCD
Kodarkar M, Joshi S (2010) ILBM impact story—ecological restoration of highly polluted stretch of Ahar river, Udaipur and ecological improvement of Udaipsagar lake, Rajasthan, India. Presented in final review meeting and international symposium of a project entitled “Intengrated Lake Basin Management (ILBM), Basin Governance, Challenges and Prospects”, Nov. 2–7, 2010. International Lake Environment Committee (ILEC) Foundation, Headquarters, Kusatsu, Japan
Patil P, Agre P, Pramod S, Joshi S (2012) Water Quality assessment at Rasoolabad stream complex eco-restoration project, Allahabad, UP. India paper presented in International conference Anthropogenic Impact on Environment and Conservation Strategy held at Ranchi, Jharkhand
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Joshi, S., Patil, P. (2018). Eco-Treatment Zone in Open Drain. In: Singh, V., Yadav, S., Yadava, R. (eds) Water Resources Management. Water Science and Technology Library, vol 78. Springer, Singapore. https://doi.org/10.1007/978-981-10-5711-3_6
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DOI: https://doi.org/10.1007/978-981-10-5711-3_6
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