Promoting Construction of Zero-direct Discharge Engineering for Agricultural Wastewater from Paddy Fields in Yangtze River Delta Region

Authors

Xinqiang LIANG, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, ChinaFollow
Jiao YANG, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
Shuang HE, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
Boyi LIU, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
Jianye LI, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
Xiangyang XU, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
Bojie FU, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

Keywords

agricultural wastewater; ecological engineering; non-point source pollution; paddy field; zero-direct discharge (ZZD)

Document Type

S & T and Society

Abstract

The Yangtze River Delta region is an important commodity grain production area in China, but has been suffering from agricultural non-point source pollution issues in recent years. This study puts forward a suggestion on promoting the construction of zero-direct discharge (ZDD) engineering for agricultural wastewater from paddy fields in the region. This suggestion is based on the field investigation, policy analysis, engineering design, and economical evaluation, which clarifies the policy adaptability and the construction importance of the ZDD engineering. At the same time, this suggestion shows the basic principles, design requirements, mode selections, investment cost, and expected ecological economic benefits of the ZDD engineering. It is expected to provide decision support for China to mitigate the non-point source pollution and enhance agricultural green development.

First page

814

Last Page

822

Language

Chinese

Publisher

Bulletin of Chinese Academy of Sciences

References

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Recommended Citation

LIANG, Xinqiang; YANG, Jiao; HE, Shuang; LIU, Boyi; LI, Jianye; XU, Xiangyang; and FU, Bojie (2021) "Promoting Construction of Zero-direct Discharge Engineering for Agricultural Wastewater from Paddy Fields in Yangtze River Delta Region," Bulletin of Chinese Academy of Sciences (Chinese Version): Vol. 36 : Iss. 7 , Article 12.
DOI: https://doi.org/10.16418/j.issn.1000-3045.20210429001
Available at: https://bulletinofcas.researchcommons.org/journal/vol36/iss7/12