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The Fuhe River in Baoding City is one of the rivers entering Baiyangdian Lake, but its pollution is serious, so improving the water quality of the Fuhe River can not be ignored. In this paper, the horizontal subsurface flow constructed wetland was used to purify the water of Fuhe River, and the pollutant removal effect of ceramsite, crushed stone filler, cyperus alternifolius, Reed and yellow iris plants was analyzed. The results showed that the cyperus alternifolius ceramsite constructed wetland has the best removal effect on COD and TP, its average removal rates are 56.18% and 61.97%, respectively, and its average effluent concentrations are 18.64 mg/L and 0.27 mg/L; the reed ceramsite constructed wetland has the best removal effect on NH4-N, with a rate of 64.00%, respectively, and its average effluent concentration is 0.82 mg/L. The results can provide theoretical reference for improving the water quality of Fuhe River.

EXPERIMENTAL STUDY ON PURIFICATION OF POLLUTED RIVER WATER WITH HORIZONTAL SUBSURFACE FLOW CONSTRUCTED WETLANDS OF DIFFERENT FILLERS AND PLANTS