Abstract
Xu, W.; Yang, Y.; Cheng, C., Pei, X., and Luo, J., 2015. Treat phoenix river water by constructed rapid infiltration system.CRI system is a new technology of sewage disposal which involves less investment, low operating cost, favorable treatment effects and so on. In 2007, a CRI system was built to improve the water quality of Phoenix River. The practical operation shows that: the layout of the CRI system is appropriate and in accord with the practical situation of pollutant sources. Operation results show that CRI system is good at removing the NH3, COD, SS and so on, effluent water is stable in CRI system, and the CRI system has stronger ability to resist impact load. The effluent NH3, COD and SS concentrations can meet the A-level of primary standard of plant emission standards (GB 18918-2002) in Municipal wastewater treatment. But the removal efficiency is bad for TP and TN and the ultimate effluent is not qualified for the A-level of primary standard of plant emission standards (GB 18918-2002) in Municipal wastewater treatment. When improving the CRI system, it must consider changing the structure of the pool filter layer, filter material composition and operation mode to improve the removal efficiency of TN and TP in CRI system.
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