The Technology for Underground Treatment of Coal Mine Drainage Used as Process Water: a Case Study of Jining No.3 Colliery

摘要：

　　According to the water quality characteristics of mine drainage of Jining No.3 colliery, the water treatment process combined goafs, an aeration oxidation tank with interacted washing filters is used to purify mine drainage underground as sprinkling water for dustproof and cooling water for devices, without dosing any coagulants.The purified mine drainage is re-treated further by reverse osmosis (RO) process as preparing water for emulsion in fully mechanized mining faces, without boosting pressure by using the pressure existed in the water supply network.The operating p3ractices show that: under the conditions of purified treatment scale of 200 m3/h, advanced treatment scale of 6m/h, the average mass concentration of suspended solids(SS)of 210 mg/L, total dissolved solids (TDS) of 2279 mg/L, SO42-of 1012 mg/L and total hardness of 204 mg/L in the influent, the average concentration of turbidity of 0.6 NTU after purifying treatment can meet the quality demands of sprinkling water for dustproof and cooling water for devices(GB 50215-2005), and the average mass concentration of TDS of 48 mg/L, SO42-of 56.6 mg/L and total hardness of 9.8 mg/L after advanced treatment by RO can satisfy the quality requirements of preparing water for emulsion (MT 76-2002).

关键词： coal mine drainage water treatment of underground mine goafs interacted washing filters reverse osmosis emulsion

作者: Rulu Zhou Zhongquan Guo Yan Xiao Dongfeng Cui Weidong Mao Jianchao Yang

作者单位: Hangzhou Research Institute of China Coal Technology and Engineering Group Corp., Hangzhou, Zhejiang 311201, China

会议类型: 国际会议

会议名称: The 12th Congress of International Mine Water Association,IMWA2014(第十二届国际矿井水大会)

会议地点: 徐州

会议语种:英文

页码: 658-661

在线出版日期: 2014-08-18（万方平台首次上网日期，不代表论文的发表时间）