DOI: 10.11799/ce202509017
Application of membrane bioreactor in treatment of coal mine domestic wastewater
XIE Nan
CHENG Jining
WANG Yongbiao
WANG Xintong
Abstract：To reduce pollution of water resources and enhance the reuse of domestic wastewater in coal mines,the influent water quality from multiple large coal mines was analyzed,and the characteristics of domestic wastewater at coal mine industrial sites in the Northern Shaanxi region was summarized.Aiming at the composition and biochemical characteristics of the coal mine wastewater,we designed"mechanical grid+sedimentation tank+A/O tank+MBR"sewage treatment process route of DAHAIZE coal mines in northern Shaanxi Province.The effluent quality of domestic wastewater treatment has been monitored for a long period to analyze the effectiveness of the treatment and adjust the operating parameters according to the effluent conditions.The results of engineering practice showed that the removal effect of the proposed process on the pollutants BODcr and NH3-N in the coal mine domestic wastewater was more than 90%and 80%,respectively,and the efluent met the standard of mine reuse water.This research contributes to ensuring the stable operation of domestic sewage treatment during coal mine production,reducing sewage treatment costs,and producing recycled water that meets quality standards.
Keywords：MBR membrane treatmentcoal mine domestic wastewaterprocess routewater quality monitoringsewage treatment process
Publication Date：2025-09-20
Online Publishing Date：2025-11-03(First online date of this platform, not the publication date of the document)
Pages：6( 123-128 )