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 10):99-104.
Treatment of Mine Drainage by Ozone Oxidation+Coagulation Sedimentation and Filtration+Ultrafiltration+Reverse Osmosis Process
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
10 10
Page:
99-104
Column:
Date of publication:
2021-05-17
- Keywords:
- mine drainage; ozone oxidation; UF+RO
- 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.
Last Update:
2021-05-17