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WP-B: Development and Testing of a GIS-Based Planning Tool for Creating Decentralized Sanitation Scenarios

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Part of the Terrestrial Environmental Sciences book series (TERENVSC)

Abstract

In Chinese peri-urban and rural areas with low population density, the implementation of central wastewater infrastructure and management concepts is difficult, mainly because of high investment costs and inadequate operation and maintenance concepts. However, these areas strongly contribute to precarious environmental situations of which Chao Lake is a perfect illustration. In the lake catchment three primary diffuse sources of pollution have been identified: (1) indirect discharges of untreated or inadequately treated domestic wastewater, (2) pollution from livestock production, (3) agricultural runoff and groundwater passage. In 2011, these primary nonpoint sources caused 42% of organic (COD) inflows to the lake, 38% of TN, and 42% of TP (Asian Development Bank, ADB 2015). To improve water quality in Chao Lake, investment in wastewater management is likely to be the easiest action as it also helps to improve the quality of the local inhabitants. However, defining and implementing cost-efficient investment plans is difficult and requires enlighted decisions.

Keywords

Chao Lake Decentralized Wastewater Management Pressure Sewers On-site Systems Chaohu City 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Asian Development Bank, ADB. Reviving Lakes and Wetlands in the People’s Republic of China, Volume 2: Lessons Learned on Integrated Water Pollution Control from Chao Lake Basin. Asian Development Bank, ADB (2015)Google Scholar
  2. Asian Development Bank, ADB. The Water Environment Improvement Engineering of the City Proper of Chaohu City of Water Environment Improvement Project of Anhui Chao Lake Basin Loaned by Asian Development Bank (Mid-term Adjustment) (2017). https://www.adb.org/sites/default/files/project-documents/44036/44036-013-rp-31.pdf
  3. van Afferden M, Cardona JA, Lee M-Y, Subah A, and Müller RA. A new approach to implementing decentralized wastewater treatment concepts. Water Sci. Technol. 72(11), 1923–1930 (2015)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Decentralized Wastewater Treatment and ReuseHelmholtz Centre of Environmental Research–UFZ, Centre for Environmental BiotechnologyLeipzigGermany

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