GAO Bo,DING Xi-ming,KANG Jian-cun,et al.Treatment of Mine Drainage by Ozone Oxidation+Coagulation Sedimentation and Filtration+Ultrafiltration+Reverse Osmosis Process[J].China Water & Wastewater,2021,37(10):99-104.
臭氧氧化+混凝沉淀过滤+UF+RO工艺处理矿井排水
- Title:
- Treatment of Mine Drainage by Ozone Oxidation+Coagulation Sedimentation and Filtration+Ultrafiltration+Reverse Osmosis Process
- Keywords:
- mine drainage; ozone oxidation; UF+RO
- 摘要:
- 某能源化工基地煤矿开采过程中产生大量含盐高、硬度高、碱度低的矿井排水，采用格栅+臭氧氧化+混凝沉淀（加纯碱）过滤+超滤+反渗透组合工艺处理，出水水质能够满足《工业循环冷却水处理设计规范》（GB/T 50050—2007）中再生水直接作为间冷开式系统补充水水质指标的要求。项目设计规模近期为5.0×104 m3/d，远期为8.0×104 m3/d。实际运行结果表明，出水水质均能满足设计要求，外送附近电厂作为循环冷却水补水水源，运行成本约为5.50 元/m3。通过项目的实施，将矿井排水变废为宝，不仅可以防止水资源流失，避免水环境污染，而且对缓解当地供水不足、改善当地生态环境、实现经济可持续发展具有重要意义。
- Abstract:
- A large amount of mine drainage with high salt content, high hardness and low alkalinity is generated during mining process of a coal mine in an energy chemical base, which is treated by a combined treatment process consisting of grill, ozone oxidation, coagulation sedimentation (dosing sodium carbonate) and filtration, ultrafiltration and reverse osmosis. The effluent quality can meet the requirements of reclaimed water directly using as the supplementary water of the intercooled open system in Code for Design of Industrial Recirculating Cooling Water Treatment (GB/T 50050-2007). The recent design treatment capacity of the project is 5.0×104 m3/d, while the long-term treatment capacity is designed to be 8.0×104 m3/d. The actual operation results of the project showed that the effluent quality could meet the design requirements. The effluent is sent out to nearby power plants as a resource of circulating cooling water, and the operating cost is about 5.50 yuan/m3. The mine drainage is changed into resources through the implementation of the project. It can not only prevent the loss of water resources and avoid water environment pollution, but also has important significance for alleviating the shortage of local water supply, improving the local ecological environment, and achieving sustainable economic development.
相似文献/References:
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