A Coal Gangue Power Plant Of Groundwater Environment Quality Evaluation

With the development of economy and the progress of the society, the scale ofthe production and development and utilization of groundwater are also increasing,with the emergence of water quality variation of groundwater and groundwaterpollution problems, the evaluation of groundwater environment quality is particularlyimportant, studying and solving the problem of the groundwater environment hasbecome the urgent problem.This paper does systemative comprehensive and compositivein discussion for thebasic situation of hydrogeological conditions, the natural geography, topography,regional geological conditions etc. in the study area of the whole power plant, throughsearching the literature and collecting all kinds of information. Use to attached notescoring method, fuzzy comprehensive evaluation method and matter-element analysisthese three methods respectively of gangue power power plant have been detected allkinds of water quality evaluation, and through the MATLAB software to achieve theuse of these three methods of groundwater environment quality evaluation calculation,improves the computational efficiency, reduces the workload, shortens the calculationtime and finally gets the status quo of the power plant of groundwater environmentquality evaluation results, and analyzes the main influence factors affecting thegroundwater environment quality, analysis the advantages and disadvantages of thethree methods for water quality evaluation. Finally, in view of this thesis thegroundwater environmental quality assessment results of the power plant, for thepower plant construction after predicting water quality impact assessment provides areasonable and reliable basic theory basis.Final results show that the water quality of plant evaluation area is good,but M1monitoring water quality is poorer, Mainly because of the M1monitoring stationsaround the operation of the one in the same ShangShuan factory discharge of sewage,will affect the groundwater quality. The main factor affecting the quality ofgroundwater is the exponential overproof of total hardness, nitrite, nitrate, ammonianitrogen and potassium permanganate. Overall water quality is good during the dryseason, the main factor affecting the quality of groundwater is the overproof of nitrateand nitrite. The water quality M7monitoring spot is better during the grey evaluation areawet season and dry season, the water quality of M8and M9monitoring spots is bad.Mainly M8, M9monitoring stations located in the grey field outcrop coal mine pits.Inthe wet season the main indicators are total hardness, total soluble solids, sulfate,nitrite, iron, manganese, ammonia nitrogen and potassium permanganate index;In thedry seaon, the main indicators are total hardness, total soluble solids, sulfate, chloride,nitrite, manganese, volatile phenol, ammonia nitrogen, iron and potassiumpermanganate.Comparing three kinds of water quality evaluation results, add notes to scoringmethod too much consider Fmax, lead to the evaluation results on the low side;Fuzzycomprehensive evaluation method emphasizes the influence of "main factors",highlight the measured values of indicators for the degree of the influence of waterquality evaluation result, so lead to the result may be on the high side;Thematter-element analysis method of the evaluation results more close to actualsituation.