不同水质特点的脱硫废水对管式微滤运行的影响研究  

Study on the Influence of Desulfurizing Waste Water with Different Water Quality Characteristics on Microfiltration Operation

作　　者：卢剑 袁斌彬 郝文蛇 杨杰 余耀宏 王礼平 LU Jian;YUAN Binbin;HAO Wenshe;YANG Jie;YU Yaohong;WANG Liping(Xi'an TPRI Water-Management&Environmental Protection Co.,Ltd.,Xi'an 710032,China;Lanzhou Xigu Thermal Power Co.,Ltd.,Lanzhou 730060,China;Inner Mongolia Mengda Power Generation Co.,Ltd.,Erdos 017000,China;China Huaneng Group Co.,Ltd.,Beijing 100031,China)

机构地区：[1]西安西热水务环保有限公司,陕西西安710032 [2]华能兰州西固热电有限公司,甘肃兰州730060 [3]内蒙古蒙达发电有限责任公司,内蒙古鄂尔多斯017000 [4]中国华能集团有限公司,北京100031

出　　处：《水处理技术》2023年第2期112-116,共5页Technology of Water Treatment

摘　　要：本文采用多家电厂不同水质特点的脱硫废水进行化学沉淀与微滤膜一体化试验研究,探究不同水质特点的火电厂脱硫废水对管式微滤运行的影响及适用性,结果表明不同水质特点的火电厂脱硫废水在相同微滤系统运行条件下,经微滤系统处理后的脱硫废水硬度去除效果均较好,水中的Ca^(2+)、Mg^(2+)离子可降至较低水平,TOC去除率相比传统混凝澄清处理效果有所提高;但当脱硫废水中Mg^(2+)离子含量占比超过60%以上时,易造成微滤系统污堵现象,导致产水水量和微滤膜通量衰减严重。The influence of desulfurized wastewater with different water quality characteristics on the operation of microfiltration and its applicability to the treatment by microfiltration were studied by using the experiment of chemical precipitation and microfiltration membrane from several power plants.The results showed that the desulfurization wastewater from thermal power plants with different water quality characteristics had better removal effect after being treated by the microfiltration system under the same conditions.The content of Ca^(2+)and Mg^(2+)in the water could be reduced to a lower level, at the sametime,the removal rate of TOC was improved compared with the traditional coagulation and clarification treatment effect.However,when the content of Mg^(2+)in desulfurized wastewater exceeds 60%, it is easy to cause fouling and plugging in the microfiltration system, leading to serious flux attenuation of microfiltration membrane.

关 键 词：脱硫废水 管式微滤 预处理 有机物 硬度 

分 类 号：X773[环境科学与工程—环境工程]