alexa Treated wastewater irrigation effect on soil, crop and environment: wastewater recycling in the loess area of China.
Agri and Aquaculture

Agri and Aquaculture

Advances in Crop Science and Technology

Author(s): Wang JF, Wang GX, Wanyan H

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Abstract A study was carried out at the Loess Plateau in Dongzhi, China, to test the feasibility of using secondary treatment sewage effluent and to determine whether the water quality would then meet the recommended irrigation norm. Seven crops, including celery, wheat, maize, millet, apples, rapeseed and yellow beans, were tested in the study. Physical and chemical properties of the soil, crop yield and quality and leachate at different soil depths were measured. In most cases, the quality of the crops that made use of treated sewage was not distinctively different from those that did not use treated sewage. However, yields for the former were much higher than they were for the latter. Leachates at different soil depths were analyzed and the results did not show alarming levels of constituents. For a period of approximately 14 months, the treated sewage irrigation had no significant effect on the loess soil and no cases of illness resulting from contact with the treated sewage were reported. With treated sewage irrigation, a slight increase in the organic content of the soil was observed.
This article was published in J Environ Sci (China) and referenced in Advances in Crop Science and Technology

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