NAFC气浮处理含藻水的试验研究

An Experimental Study on the Treatment of Algae-laden Water by NAFC

随着水污染的日益加重和水体的富营养化,湖水或水库经常发生季节性的藻类繁殖。因此,如何有效处理含藻水是人们面临的一个难题。文章报道了采用机械散气溶气气浮柱(NAFC)气浮处理含藻水的试验研究。结果表明:PAM用量为1.5 mg/L、PAC用量为60 mg/L、两进水口间距为160 cm和回流比为20%的条件下,原水浊度从42 NTU下降到4 NTU,CODMn从24.8 mg/L下降到4.3 mg/L,SS从75.8 mg/L下降到6.5 mg/L,出水水质达到《生活饮用水水源水质标准》CJ3020-1993Ⅱ类标准,为下一步净化处理创造了良好的条件。

With the deterioration of water pollution and the eutrophication of waters ,lakes and reservoirs often incurs seasonal algae's reproduction. How to treat algae-laden water effectively is a difficult problem to us . This paper reports the experimental study on the treatment of algae-laden water by New Air-smashing and dissolving Flotation Column (NAFC). The test results show that when the amount of PAM used is 1.5 mg/L, the amount of PAC used is 60 mg/L, the distance of two water inlets is 160 cm and the reflux ratio is 20%, the turbidity, SS and CODMn of the algae-laden water are decreased from 42 NTU to 4 NTU, from 75.8 mg/L to 6.5 mg/L and from 24.8 mg/L to 4.3 mg/L.The water quality of the effluent reaches the second standard of water quality standard for drinking water sources CJ 3020-1993, which supplies a good condition for its further purification.