Water Environment Present Situation Appraisal And Its Change Rule Research Of Zhangji Coal Mine Collapse Waters

With the mining scale's unceasing expansion of Zhangji coal mine, the mining coal collapse waters area is also increasing year by year; the farming and forestry vegetation and so on is destroyed, terrestrial ecosystem originally by aquatic ecosystem substitution. Since long, the collapse waters and the surface rivers are became the mining area and the peripheral Industrial and mining establishment waste water and the sanitary sewage emissions place already, Periphery in addition has the farmland to carry on the sewage irrigation and the agricultural chemicals chemical fertilizer use, possibly causes the serious pollution to its ground water and the soil, it will become the lives of the people the latent threat. The union topographical condition, estimated that the Zhangji all collapse area will link up into a single stretch to 2030, the collapse area will achieve 70 square kilometers, is the very good storage place, will estimate water depth 20 meters, the water resources quantity will achieve 498,000,000 cubic meters. This article embarks from the water quality target's analysis, carries on the preliminary appraisal to the water quality condition.This article determined that the Zhangji coal mine collapse area as the research area, designates four regions and has the representative collapse pond to take the object of study greatly, first to source of pollution present situation investigation, determination collapse region waters present situation, source of pollution type and distribution condition, as well as four collapse pond use situation. The sampling point build refers to "Water quality Sampling plan Design technique Stipulation" (HJ 495-2009), the sampling point concrete spot position locates with GPS, all samples when the scene sampling increases the different fixing agent to carry on separately fixedly, guarantees the monitor data the accuracy. From the physics and chemistry target angle to the collapse pond's water quality, the bottom mud and the peripheral soil carries on the analysis test. Obtains through the research water quality target monitor data and nutritive elements' change rule analysis:Four collapse pond's total phosphorus, the total nitrogen and the chlorophyll a content is highest in the autumn, the winter is spring lowest, may obtain here the nutritive elements to change along with the season change, has certain cumulative effect. The nearby resident's sanitary sewage disperses into the quantity to increase; nutritive elements' content is relatively high. Studied the region the eutrophication target to achieve in the surface water environment quality standard III or IV above the standard, the majority is in II Above the standard, the water quality situation is very good, non-eutrophication situation.To the water quality, the bottom mud and the soil heavy metal monitoring result carries on the analysis, forecast that will add later possibly water the influence which the environment will create. Use improvement's improved Nemerow index method, the fuzzy clustering analytic method and the single factor exponential method has carried on the appraisal to the collapse waters, draws the conclusio:through one year in four quarter water quality's continuous monitoring, the water quality target test and the measure results may obtain, study the region the conventional target, the eutrophication target, the heavy metal class target not to present the obvious polluting condition, the water quality can achieve "Surface water Environment quality Standard" (GB3838-2002) III or IV kind of water.Each collapse waters' water quality condition changes along with the season change, the different target presents the different change characteristic in the different season, but water quality overall good shape. According to the Zhangji coal mine collapse waters water environment characteristic, carries on the comprehensive utilization and the environmental protection for the water leakage environment suggested and proposed this article deficiency waits for further studies.