Effect of Wastewater Treated by EM Reused for Irrigation on Shallow Groundwater Quality

Abstract:

In allusion to environmental pollution brought about by wastewater irrigation, EM technology was introduced to study the feasibility of EM application in wastewater irrigation. The results show that EC, NO₃^--N and TN value of EM treatment in shallow groundwater are all less than those of WW treatment as a whole. In all samples, 59.3% NO₃^--N values are in the alert status, and when irrigation amount reaches 360mm, treatment WW has caused shallow groundwater pollution. TN concentration in treatment WW-3 on June 27 and July 9 is more than 110 mg/L. It suggests that NO₃^--N can easily penetrate into shallow groundwater with wastewater irrigation and there is insurance of groundwater pollution in the long-term wastewater irrigation. It also indicates that application of wastewater treated by EM reused for irrigation is feasible. TP values are all very low and suggest the pollution of P does not happen.

• Periodical: Applied Mechanics and Materials (Volumes 409-410)
• Pages: 318-324
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.409-410.318
• Online since: September 2013
• Authors: Chao Yin, Xiao Hou Shao, Xiao Wei Zhang, Liang Ren, Ting Ting Chang, Wei Na Wang, Jing Nan Chen
• Keywords: EM Technology, Pollution, Shallow Groundwater, Wastewater Irrigation

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