摘要:随着我国工农业发展和人民生活水平的提高，污水排水量迅速增加。绝大多数未经处理的污水排入城市湖泊、河流，使水体中磷污染日趋严重，其直接后果为水体富营养化。水体富营养化问题一直是水污染中较为严重的环境问题，已对人类的健康及生态环境造成了很大威胁，如不及时治理，将后果严重。

　　　本文研究白云石除模拟含磷废水中的除磷的机理，以模拟含磷废水为研究对象，使用白云石粉做吸附剂，通过实验研究了溶液的pH值、时间、温度、初始磷浓度以及白云石粉加入量等工艺参数因素对除磷效果的影响。

　　　实验结果表明： 在pH值9.4左右，吸附时间60min，温度在30℃，初始磷浓度50mg/L，白云石粉加入量为100g/L的条件下，脱磷效果最佳，脱磷率可达98.918%。

关键词：白云石 模拟含磷废水 除磷实验

ABSTRACT:With the development of industrial and agricultural and the improvement  people's living standards in China,sewage displacement increase rapidly.The vast majority of untreated sewage into the urban lakes,rivers,the phosphorus pollution in water body has become increasingly serious,the direct consequences of eutrophication. Eutrophication problem of water pollution is more serious environmental problems, has on human health and ecological environment caused a great threat, if not timely treatment, will be serious consequences.

　　　In this paper,we study dolomite in addition to the simulation mechanism of phosphorus in the wastewater phosphorus removal,to simulate a as the research on phosphorus wastewaterLike,the use of dolomite fines do adsorbent,the pH of the solution is studied through experiments，time，temperature,at the beginning Beginning of the process parameters such as for the amount of phosphorus concentration and dolomite fines affected factors on phosphorus removal effect.

　　　The experimental results show that the pH value of 9.4 or so,60 min adsorption time, temperature at 30℃,initial phosphate concentration of 50 mg/L,dolomite fines addition amount of 100 g/L,dephosphorization effect is best,dephosphorization rate can reach 98.918%.

Keywords: dolomite;dephosphorization phosphorus wastewater; simulation experiments