Reach On Environmental Geology And Hydrology Of Dimunalike Iron Ore In Xinjiang

The Dimu grams of iron ore is located in the administrative division of Qiemo County in Mongolia Autonomous Prefecture Xinjiang BaYinGuoLe which is located in the Al-Jin Mountains on the southern slope of the west without residential and industrial areas,little development of vegetation,the southern has a few herdsmen grazing around.Firstly,The hydro geological exploration in the study area to identify the basic hydrogeological conditions,without perennial surface water area,groundwater in fractured aquifer water as the main hydrological unit area widely,mainly to the runoff discharge the flow of groundwater,the mining is from the north to south direction and the flow is not smooth but at a slow movement.The alternate mining area of Quaternary pore water aquifer unit inflow is between 0.00364⁰.00538m³/h·m,the average unit inflow is0.00451m³/h·m,between the aquifer permeability coefficient of 0.00092⁰.0025m/d,the average permeability coefficient is 0.00167m/d,influenced within a radius of1.82².22 M,belonging to the lack of unconfined aquifer water abundance.Through dynamic monitoring of groundwater level and water quality,results are:pH,Hg,Zn,As,NH₃,NH₄⁺,Cr⁶⁺,Cu,Fe,ect 20 in total.Among them,the main exceed the standard is NO₂^-,NH₄^-,Fe²⁺,Fe³⁺,Mn^2-,the reasons is the original environmental problems.Analysis of groundwater pollution sources for mining ore,through oxidation,leaching solution,the first pollution to the yard soil making further effects on groundwater quality.After leaching solution experiment,the key factor for the harmful pollution are As and F-,the highest leaching concentrations is 0.0093mg/l and 1.60mg/l,all over standard.The thickness of the vadose zone in the mining area is greater than200 m.The permeability coefficient is 5.68×10^-61.05×10^-5cm/s,and the average is2.55×10^-5cm/s.The antifouling performance is medium In total,it has little effect.Suggested that the tailings reservoir should be built in the lower terrain,the thickness of the vadose zone is relatively developed,and the bedrock water resisting layer is relatively complete,which can improve or mitigate the situation.