不同载体强化生物膜法处理西北农村微污染水源水  

Treatment of Micro-polluted Rural Water Source in Northwest by Different Carrier Enhanced Biofilm Method

作　　者：张莉红[1,2,3] 杨超 张鹏[2,3] 朱雪燕 邢晓红 ZHANG Li-hong;YANG Chao;ZHANG Peng(School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou,Gansu 730070;Gansu Membrane Science and Technology Research Institute Co.,Ltd.,Lanzhou,Gansu 730020;Key Laboratory for Resources Utilization Technology of Unconventional Water of Gansu Province,Lanzhou,Gansu 730020)

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]甘肃省膜科学技术研究院有限公司,甘肃兰州730020 [3]甘肃省非常规水资源化利用技术重点实验室,甘肃兰州730020

出　　处：《安徽农业科学》2021年第5期83-86,89,共5页Journal of Anhui Agricultural Sciences

基　　金：兰州市科学技术局项目(2019-1-40);甘肃省科学技术厅项目(18YF1FA010)。

摘　　要：模拟西北农村微污染水源作为处理对象,对比不同载体的挂膜效果,研究优选载体生物膜法降解高锰酸盐指数(COD Mn)及氨氮的影响因素。结果表明,聚氨酯轻质悬浮载体明显优于其他4种载体,启动挂膜快,处理效果好,聚氨酯轻质悬浮载体在DO=1~3 mg/L、pH=8~9、填充率为20%,采用间歇式的运行方式,COD_(Mn)的去除率可达88%,出水COD_(Mn)在2 mg/L左右,氨氮的去除率约84%,出水氨氮浓度达0.1 mg/L,均满足饮用水源水的Ⅱ类水质标准。The micro-polluted water in northwest rural area were simulated,the film hanging effects of different carriers were compared.The factors affecting the degradation of COD_(Mn) and ammonia nitrogen by biofilm were studied.The results showed that the lightweight suspension carrier of polyurethane was obviously superior to the other four carriers.Polyurethane light suspended carrier in DO=1-3 mg/L,pH=8-9,filling rate was 20%,the intermittent operation mode,the removal rate of COD_(Mn) could reach 88%,COD_(Mn) about 2 mg/L in effluent,the ammonia nitrogen removal rate was about 84%,up to 0.1 mg/L,met the drinking water source waterⅡwater quality standards.

关 键 词：微污染水源 COD_(Mn) 氨氮 生物膜法 聚氨酯轻质悬浮载体 

分 类 号：X52[环境科学与工程—环境工程]