College of Energy and Environmental Engineering，Hebei University of Engineering，Handan ，China

针对高矿化度矿井水零排放处理工艺存在问题,从预处理、深度处理、浓缩处理和蒸发结晶等分段工艺着手,对高矿化度矿井水零排放处理工艺进行分析研究。研究结果表明:关于高矿化度矿井水预处理和深度处理的工程应用广泛,技术成熟,而浓缩处理和蒸发结晶工艺工程应用较少,关键技术仍需完善;通过比选,结合典型案例分析,提出"石灰+碳酸钠药剂软化与澄清(或混凝沉淀)相结合+过滤+超滤+离子交换树脂软化+高效反渗透+脱碳+纳滤分盐+电溶析(ED)浓缩+多效蒸发(MED)结晶"的优化工艺,其中纳滤分盐的产水经电溶析ED浓缩后部分回用于软化树脂的再生,实现以废治废。

Aiming at the problems of zero discharge treatment technology of mine water with high salinity，the zero discharge treatment tech- nology of mine water with high salinity was researched from pretreatment，advanced treatment，concentration treatment and evaporation and crystallization．The results show that the engineering application of high mineralized mine water pretreatment and deep treatment is exten- sive，and technology is very mature．However，the engineering application of concentration treatment and evaporation crystallization process is less，and the key technologies still need to be improved．Through comparison and selection，combined with typical case analysis，the paper puts forward the optimization process of“lime+combination of softening of sodium carbonate and clarification( or coagulant and sedimenta- tion) +filtration+ultrafiltration+softening of ion exchange resin+high performance reverse osmosis+decarbonize+nanofiltration+concentration by ED+multiple effect distillation( MED) crystallization ”．The produced water of nanofiltration is partially reused for regeneration of sof- tened resin after ED concentration，so as to realize waste treatment by waste．

2015年河北省科技计划资助项目(15274006D)；