MAP法在RO浓水氨氮处理中的研究  

Application of MAP in RO Concentrate of Landfill Leachate

作　　者：刘欣 岳喜龙 赵阿波 吴彤 Liu Xin;Yue Xilong;Zhao Abo;Wu Tong(Yangzhou Jiejia Industrial Solid Waste Disposal Co.,Ltd.,Yangzhou 211417;Yangzhou Ningda Noble Metals Co.,Ltd.,Yangzhou 225231,China)

机构地区：[1]扬州杰嘉工业固废处置有限公司,江苏扬州211417 [2]扬州宁达贵金属有限公司,江苏扬州225231

出　　处：《广东化工》2023年第14期13-15,共3页Guangdong Chemical Industry

摘　　要：固废填埋场渗滤液经过蒸发后的RO浓水具有高浓度氨氮、低浓度杂质离子的特点。采用MAP法去除RO浓水中的氨氮,采用单因素实验确定了某固废填埋场RO浓水的药剂组合:磷酸氢二钠和氯化镁;最佳反应条件:初始pH值为10;Mg∶N∶P的摩尔比1.2∶1∶1.3,反应时间30 min,氨氮的去除率99.7%,剩余氨氮为3.79 mg·L^(-1)。MAP法对溶解性COD去除效果较差。The RO concentrate after evaporation from solid waste landfill leachate has the characteristics of high concentration ammonia nitrogen and low concentration impurity ions.The MAP method was used to remove ammonia nitrogen in RO concentrate.The single factor experiment was used to determine the pharmaceutical combination of RO concentrate in a solid waste landfill:disodium hydrogen phosphate and magnesium chloride;the optimum reaction conditions:the initial pH value was 10;the molar ratio of Mg∶N∶P was 1.2∶1∶1.3,the reaction time was 30 min,the removal rate of ammonia nitrogen was 99.7%,and the remaining ammonia nitrogen was 3.79 mg·L^(-1).The MAP method has poor removal effect on soluble COD.

关 键 词：固废填埋场 渗滤液 RO浓水 氨氮 MAP法 

分 类 号：TQ[化学工程]