The main object of the assignment is to assess the feasibility of implementing decentralised sanitation options addressing specific requirements for different urban scenarios. These are then embedded into the overall sanitation planning of the city. This approach is to be demonstrated through implementation of pilots in the selected cities. CDD Society is currently engaged in implementation of pilots in two Indian cities i.e. Raipur (Chhattisgarh State) and Kochi (Kerala State).
Raipur City has over 150 lakes and ponds which are deteriorating in wake of uncontrolled inflow of untreated domestic and industrial wastewater. These water bodies once considered to be the lifeline for communities residing on their banks have been rendered lifeless due to unplanned urbanization. The pilot intervention in Raipur aims at exploring application of various decentralised wastewater treatment options for untreated discharges flowing into Buddha Talab, a water body in Ward No. 61. The main object is to protect natural water bodies and thereby improve living conditions of people dependent on use of water from the lake and improvement of lake ecology. Opportunities for grey and black water separation and appropriate technological options respectively, will be explored. The aim is to demonstrate the effectiveness of approaches adopted and potential of replication at city level.
In Kochi City, the pilot intervention focuses on potential application of decentralised sanitation approaches in slum colonies. Such communities are often neglected when it comes to provision of safe and adequate sanitation services for marginalised groups of society. The Government of India through its scheme Rajiv Aawas Yojna (RAY) is contemplating making Indian cities slum free. In this regard, Thuruthi a small Muslim community in Kochi has been selected for rehabilitation under the said scheme. The main objective is to plan for appropriate decentralised sanitation options with respect to wastewater management, solid waste management and provision of adequate toilet facilities. The intervention aims at demonstrating suitable sanitation plans for slum colonies taking into consideration local characteristics and people’s behavior.