The comprehensive assessment of acid production potential of sulfur-containing minerals is of great significance for acid mine wastewater control and ecological environmental protection.Taking the Modigou mining area of Hejin,Shanxi Province as an example,this paper comprehensively studies the acid production potential of Modigou sulfur-containing minerals based on the geochemical static test results of rock samples,combined with the estimation of sulfur-containing mineral reserves and mine water inflow.The results show that No.10 coal of the Taiyuan Formation,bauxite of the Benxi Formation and pyrite of the Benxi Formation all have acid production potential,while the limestone between the coal seams of the Taiyuan Formation has no acid production potential;it is estimated that the maximum acid production in the Modigou mining area is 19 000 t H2SO4,the annual acid wastewater output is 309 000 m3,and the acid production period is 265.5 a;the analysis of the uncertainties in the assessment process indicates that the maximum acid production volume is large,the annual acidic wastewater production volume is small,and the acid production year is large.
关键词
酸性矿山废水/含硫矿物产酸潜力评估/最大产酸量/产酸年限/山西莫底沟矿区
Key words
acid mine drainage/assessment of acid production potential of sulfur-bearing mineral/maximum acid production/acid production year/Modigou mining area,Shanxi,China
维普
万方数据