磷酸铵镁法去除高氮磷比废水中磷的试验研究  

Experimental research on phosphorus removal from wastewater with high N/P ratio by MAP process

作　　者：周荣敏[1] 雷延峰[1] 武燕杰[2] 

机构地区：[1]郑州大学水利与环境学院,郑州450001 [2]湖南大学土木工程学院,长沙410082

出　　处：《工业用水与废水》2010年第6期32-34,共3页Industrial Water & Wastewater

基　　金：河南省教育厅自然科学研究资助项目(2008A610009)

摘　　要：采用磷酸铵镁法处理高氮磷比废水,正交试验结果表明对于氮磷物质的量之比为20的废水,在pH值为9.0～10.2时,镁磷物质的量之比是影响磷酸铵镁法除磷效果的主要因素。当pH值为9.5,反应时间为15 min,镁磷物质的量之比为1.3时,磷去除率可达97%以上,且具有良好的适应性和稳定性;对于高氮磷比废水,在保证能达到预期的磷去除率情况下,通过降低所必须维持的pH值和镁磷物质的量之比来节约药剂成本是可行的。MAP process was used to treat wastewater with high N/P ratio,the results of the orthogonal test showed that,for the wastewater with N/P ratio of 20 and pH value of 9.0-10.2,n（Mg） ∶ n（P） was the most significant factor that affect the MAP process removing phosphorus.When the pH value was 9.5,the reaction time was 15 min,the n（Mg） ∶ n（P） was 1.3,the removal rate of phosphorus reached above 97%,and the effluent water had a good adaptability and stability.It could be seen that,for the wastewater with high N/P ratio,under the circumstance that an expected phosphorus removal rate could be achieved,it was feasible to save the reagent cost by decreasing pH value and n（Mg） ∶ n（P）.

关 键 词：MAP法 除磷 高氮磷比废水 正交试验 

分 类 号：X703.1[环境科学与工程—环境工程]