邯邢地区矿井水处理效果与回用途径研究  

Treatment effect and reuse path of mine water from coal mines in Handan-Xingtai region

作　　者：杨廷超 YANG Tingchao(Hydrological Geological Team of Heibei Province Coal Geology Bureau,Handan 056001,China)

机构地区：[1]河北省煤田地质局水文地质队,河北邯郸056001

出　　处：《煤炭工程》2025年第3期96-102,共7页Coal Engineering

基　　金：国家科技重大水专项“基于入淀水质达标的流域污染负荷削减技术研究和工程示范”(2018ZX07110002)。

摘　　要：煤矿开采过程会产生大量矿井水,若不进行合理利用,造成宝贵水资源浪费的同时,还会污染环境。传统处理工艺回用路径较为单一,难以满足矿区多层次用水需求。本研究以邯郸-邢台煤矿区冀中能源集团矿井水为研究对象,采用“高密度澄清-超滤”工艺对矿井水进行处理,根据出水水质分别进行井下用水、生活用水和农灌用水方面的回用。结果表明,PAC为最优混凝药剂,最佳投加量为80 mg/L;阴离子PAM为最优絮凝剂,最佳投加量为2 mg/L,超滤组件可进一步去除水中的剩余悬浮物。在矿井水回用途径中,农灌时期,矿井涌水全部进行农灌,井下用水和生活用水采用自来水补充,吨水总成本为2.59元;非农灌时期,矿井涌水全部进行井下回用和生活用水回用,剩余部分外排,吨水总成本为0.49元,具有显著社会效益和经济效益。Coal mining operations generate substantial volumes of mine water,which represents both a critical resource recovery opportunity and an environmental management challenge.Conventional treatment and reuse methods are often simplistic and fail to address the complex water requirements of mining areas.This study focuses on the mine water from a specific mine within in Handan-Xingtai coalfield of the Jizhong Energy Group.We employ a “high-density clarification-ultrafiltration” treatment process to purify the mine water,tailoring its reuse for groundwater replenishment,domestic supply and agricultural irrigation water based on the quality of the treated effluent.Our findings indicate that Polyaluminum Chloride(PAC) is the most effective coagulant,with an optimal dosage is 80 mg/L.For flocculation,anionic polyacrylamide(PAM) is identified as the best choice,with an ideal dosage of 2 mg/L.The ultrafiltration stage further ensures the removal of any residual suspended solids from the water.In terms of mine water reuse strategies,during the agricultural irrigation season,the entire influx of mine water is directed towards agricultural irrigation,with groundwater and domestic water sources supplemented by municipal water supplies.The overall cost of water is 2.59 yuan/ton;In non-agricultural irrigation seasons,all mine gushing mine water is utilized for underground and domestic water,with the surplus being discharged externally.The cost is reduced to 0.49 yuan/ton.This approach offers substantial social and economic benefits,making it a viable and sustainable solution for mine water management.

关 键 词：矿井水回用 高密度澄清池 超滤 悬浮物去除 回用路径 

分 类 号：TD926.5[矿业工程—选矿]