ZHUGang,ZHENG Yi-li,WANGLi,et al.Study on the Compliance of Reclaimed Water for Agricultural Irrigation in the “Eco-Zone around the City” of Chengdu[J].China Water & Wastewater,2022,38(20):65-72.
Study on the Compliance of Reclaimed Water for Agricultural Irrigation in the “Eco-Zone around the City” of Chengdu
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第20期
Page:
65-72
Column:
Date of publication:
2022-10-17
- Abstract:
- Chengdu has planned a series of urban ecological agricultural landscape systems dominated by urban central park “eco-zone around the city”, which provide green ecological barriers for urban development. The increase in farmland area is bound to aggravate the contradiction between urban life, industry and environmental water use, so the use of reclaimed water for farmland irrigation is an effective way of sustainable utilization of water resources. This paper investigated the feasibility and implementation strategy of reusing reclaimed water resources for agricultural irrigation in the “eco-zone around the city” of Chengdu. The technologies and effluent quality of reclaimed water treatment plant were systematically organized and analyzed, and the feasibility and risk of reclaimed water used for agricultural irrigation in the study area were obtained. The effluent quality of the main reclaimed water plants in the region met the requirements of relevant specifications and standards, and the effluent quality was relatively stable. However, it is necessary to focus on indicators such as total nitrogen, total phosphorus, chloride, inorganic salts and heavy metals to prevent the adverse impact of enrichment of such pollutants on the environment. In addition, corresponding implementation strategies and supervision system were proposed combined with the water environment, soil environment and crop species in the study area.
Last Update:
2022-10-17