氢氧化钙除河道水中磷的试验研究  

Experimental Study on River Phosphorus Removal with Calcium Hydroxide

作　　者：刘忻[1] 俞珊珊[1] 於胜洪[1] 孔祥成[1] 马三剑[1] 

机构地区：[1]苏州科技学院环境科学与工程学院,江苏苏州215000

出　　处：《环境科学与管理》2009年第2期129-132,共4页Environmental Science and Management

摘　　要：用氢氧化钙去除河道水的总磷。结果表明:在先1分钟300r/min快速搅拌,后5分钟40 r/min搅拌的条件下,直接投加1 250 mg.L-1氢氧化钙时,出水总磷为0.046 mg.L-1,可达到《景观娱乐用水标准》(GB12941-91)中C类标准(TP≤0.05 mg.L-1)和《地表水环境质量标准》(GB3838-2002)中Ⅱ类标准(TP≤0.1mg.L-1);在同样的反应条件下,预先调节水样pH至10,投加量达到3 250 mg.L-1时,出水总磷达0.068 mg.L-1。该药剂对COD和浊度均有良好的去除效果,但对氨氮的去除效果不明显。The chemical process is used to remove the TP of river with calcium hydroxide. The result shows that in the condition of agitating intensity 300 r/min 1 min firstly, then 40 r/min 5 min, adding calcium hydroxide 1 250 mg· L^ - 1 directly into the water sample, the content of rip will lower to 0. 046 mg · L^-1 It can reaeh to the C Standard （ TP ≤0. 05 mg · L^ - 1 ） of Water quality standard for scenery and recreation area （ GB12941 - 91 ） and the Ⅱ Standard （ TP ≤0. 1 mg · L^-1 ） of Environmental quality standards for surface water（ GB3838 -2002）. At the same reaction condition, adjusting the pH of the water sample to 10, then adding calcium hydroxide 3 250 mg · L^-1 into the water sample, the content of TP will lower to 0. 068 mg · L^-1. At the same time. It also has good elimination effect on the COD and turbidity. But it is not obvious to NH3 -N.

关 键 词：河道水 除磷 氢氧化钙 

分 类 号：X523[环境科学与工程—环境工程]