Decentralized Wastewater Management and its Application in an Urban Area of Beijing, China
A centralized wastewater treatment system has always been regarded as a successful approach during the last century. However, the transfer of this highly water-, energy-and costconsuming system, and “end-of-pipe technology to developing countries like China has been proved to be extremely limited and not always feasible. Decentralized water management based on ecological sanitation (EcoSan) turns out to be a promising alternative approach that does not have the pitfalls of the centralized wastewater approach, and represents a holistic solution for ecologically and economically sound sanitation. The main objective of EcoSan is to close both nutrient-and water cycles with as small an expenditure of material and energy as possible. Such implementation could result beneficially in natural resources conservation with greater reliability, flexibility, and costeffectiveness. This study investigated the needs and potential for wastewater management in China, and compares a centralized with a decentralized approach to water management. The utilisation of both decentralized greywater treatment/reuse and rainwater harvesting in a semi-urban area of Beijing demonstrated the benefit of such a decentralised system. In addition, the application and implementation of the decentralized approach based on ecological sanitation in both rural and urban areas in China are discussed.
Dong Qing Zhang Soon Keat Tan
DHI-NTU Centre Nanyang Technological University Singapore Maritime Research Centre Nanyang Technological University Singapore
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）