Coal mining produces a large amount of mine water, which not only brings certain pressure to the ecological protection of mining areas, but also causes the waste of water resources. Coal mine water is mostly high mineralization mine water, total dissolved solids TDS ≥ 1000 mg / L which cannot be used after simple treatment; at the same time, direct discharge will cause surface erosion, salinization, vegetation withering, etc., for this reason a number of environmental authorities have set limits on TDS in mine water discharges, more and more areas require mine water zero liquid discharge.
NEWA's coal mine drainage zero liquid discharge process - "Destabilization coupled with flat membrane", the process reduces chemical dosage ≥ 80%, reduces the output of softened sludge ≥ 60%, removes calcium sulphate ≥ 70%, reduces treatment cost≥ 60% compared with UF+RO process, by-products calcium sulphate dihydrate (gypsum) and sodium sulphate, reach first-class grade A, overall recovery rate reaches 95%
Yuan Datan Mine Water Treatment Project 36000m³/d
Yanchang Petroleum Kekegai Coal Mine Water Treatment Project 36000m³/d
Huanghaojie Coal Mine Water Treatment Project 15600m³/d(Phase I) 28800m³/d (Phase II)
Lilou Coal Mine Water Treatment BOT Project 24000m³/d
Weiwall Coal Mine Water Depth Treatment Project 24000m³/d
Gaozhuang Coal Mine Water Comprehensive Utilisation Project 7000m³/d
Binhu Coal Mine Water Emergency Treatment Project 2000m³/d
Jiangzhuang Coal Mine Water Emergency Treatment Project 2000m³/d
Tianchen Coal Mine Water Emergency Treatment Project 1000m³/d
Guotun Pengzhuang Coal Mine High Salinity Water Treatment BOT Project 24000m³/d
Pengzhuang Coal Mine High Salinity Water Treatment BOT Project 9600m³/d
Wanfu Energy High Salinity Mine Water Treatment Project 19200m³/d
Underground Water Pretreatment and Surface Domestic Sewage Treatment Project of Inner Mongolia
Haosheng Coal Co., Ltd 25440m³/d
Feicheng Mining Liangbaosi Mine Water Full Salinity and Sulphate Treatment Project 3365m³/d
Feicheng Mining Shanxian Mine Water Full Salinity and Sulphate Treatment Project 1500m³/d
Zaozhuang Mining Xinan Coal Mine Water Emergency Treatment Project 1000m³/d
