以纳滤为核心的矿井水净化技术研究及工程实践  

Research and Engineering Practice of Mine Water Purification Technology with Nanofiltration as the Core

作　　者：杨志强 王立杰 邓艳霞 周涛 赵鹏飞 YANG Zhiqiang;WANG Lijie;DENG Yanxia;ZHOU Tao;ZHAO Pengfei(Shahe Zhongguan Iron Mine Co.,Ltd.,Hebei Iron and Steel Group)

机构地区：[1]河北钢铁集团沙河中关铁矿有限公司,河北省邢台市054100

出　　处：《现代矿业》2023年第2期156-159,共4页Modern Mining

摘　　要：以某铁矿矿井回灌水水质净化为背景,从纳滤膜进水预处理要求、纳滤膜结垢的防止、胶体污染的防治、生物污染的防治、有机污染的防治、膜劣化的防止等几方面,对矿井水纳滤处理过程展开深入研究,提出一套以纳滤为核心的高效节能矿井水净化技术工艺。采用“澄清池絮凝沉淀+多介质过滤+自清洗机械过滤+纳滤膜分离技术+次氯酸钠消毒”等以纳滤为核心的组合水净化技术对矿井水进行处理,产水水质满足国家规定的回灌水水质标准,运行成本较反渗透技术低30%左右,并建成国内首家冶金矿山示范工程。研究成果可为纳滤技术在冶金矿山行业的推广应用提供技术支撑。Based on the water quality purification of recharge water in an iron mine,the nanofiltration process of mine water was studied in depth from the aspects of nanofiltration membrane pretreatment requirements,nanofiltration membrane fouling prevention,colloidal pollution prevention,biological pollution prevention,organic pollution prevention and membrane deterioration prevention,and a set of high efficiency and energy saving mine water purification technology with nanofiltration as the core is proposed.The combined water purification technology with nanofiltration as the core,such as’clarifier flocculation sedimentation+multi-media filtration+self-cleaning mechanical filtration+nanofiltration membrane separation technology+sodium hypochlorite disinfection’,was used to treat mine water.The water quality of the produced water meets the national standard of recharge water quality.The operating cost is about 30%lower than that of reverse osmosis technology,and the first metallurgical mine demonstration project in China is built.The research results can provide technical support for the popularization and application of nanofiltration technology in metallurgical mining industry.

关 键 词：矿井水回灌 矿井水净化 预处理 纳滤 

分 类 号：TD74[矿业工程—矿井通风与安全]