發(fā)布時間：2018-07-03 05:02

  本文選題：典型礦山 + 地下水��； 參考：《成都理工大學》2015年碩士論文

【摘要】：四川省礦產(chǎn)資源十分豐富,礦產(chǎn)經(jīng)濟已成為四川省經(jīng)濟的重要支撐點。由于歷史上開采技術(shù)水平的不足,礦山開采活動造成了礦山地下水污染的環(huán)境問題,并且采礦活動已成為四川省地下水污染的主要原因之一。在前人研究成果的基礎上,結(jié)合實際現(xiàn)場調(diào)查所獲的數(shù)據(jù)和資料,分析了四川省礦山分布情況;并以四個典型礦山為例通過礦物成分分析、浸出毒性試驗、地下水水質(zhì)采樣分析等識別四川省典型礦山地下水污染因子,并在此基礎上進行了修復技術(shù)篩選研究。以期獲得一定理論意義,來指導四川省今后礦山地下水污染修復工程實踐,為今后四川礦山地下水污染修復選擇適合的技術(shù)提供參考。得到主要認識和成果如下:(1)煤礦山主要分布盆周地區(qū)和川南地區(qū);黑色金屬礦山主要集中攀西、川南和川東北地區(qū);有色金屬礦山主要集中川西高原地區(qū);非金屬礦山主要位于成都平原一帶。(2)典型煤礦地下水污染因子為礦井和排矸場產(chǎn)生的酸性廢水和金屬離子Fe;典型黑色和有色金屬礦地下水污染因子為廢石場和尾礦庫產(chǎn)生的酸性廢水、重金屬離子和選礦藥劑,兩種類型差別在于重金屬離子不一樣,典型黑色金屬礦主要以Ti、Ni、Fe、As為主,典型有色金屬礦以Cu、Pb、Zn、Cr為主。典型非金屬礦地下水污染因子以氟為主。(3)按照技術(shù)可行性、經(jīng)濟合理性、二次污染可能性低等篩選原則,對現(xiàn)在主要的地下水修復技術(shù)經(jīng)過評分進行排序篩選,得出四川省煤礦地下水污染修復技術(shù)順序依次為滲透反應墻、抽出處理、微生物修復、監(jiān)測自然衰減、植物修復、原位化學還原;黑色金屬礦地下水污染修復技術(shù)順序依次為抽出處理、滲透反應墻、微生物修復、監(jiān)測自然衰減、原位化學還原技術(shù)、植物修復;有色金屬礦地下水修復技術(shù)排序為抽出處理、滲透反應墻、微生物修復、原位化學還原、植物修復、監(jiān)測自然衰減;非金屬礦地下水污染修復技術(shù)排序為滲透反應墻、電動力、抽出處理、植物修復、原位化學還原、監(jiān)測自然衰減。
[Abstract]:Sichuan Province is rich in mineral resources, mineral economy has become an important supporting point of Sichuan economy. Because of the shortage of mining technology in history, mining activities have caused environmental problems of underground water pollution in mines, and mining activities have become one of the main causes of groundwater pollution in Sichuan Province. Based on the previous research results, combined with the data and data obtained from the actual field investigation, the distribution of mines in Sichuan Province is analyzed, and the leaching toxicity test of four typical mines through mineral composition analysis is taken as an example. Groundwater pollution factors of typical mines in Sichuan Province are identified by sampling and analysis of groundwater quality. It is expected to obtain certain theoretical significance to guide the practice of underground water pollution remediation in mines in Sichuan Province in the future and to provide a reference for the selection of suitable technologies for groundwater pollution remediation in mines in Sichuan in the future. The main results are as follows: (1) the coal mines are mainly distributed in the basin area and the southern Sichuan area, the ferrous metal mines are mainly concentrated in Panxi, southern Sichuan and northeast Sichuan, the non-ferrous metal mines are mainly concentrated in the western Sichuan plateau area; Non-metallic mines are mainly located in Chengdu Plain. (2) the pollution factors of groundwater in typical coal mines are acid wastewater and metal ion Fe produced by mine and gangue dump, and the pollution factors of groundwater in typical black and non-ferrous metal mines are waste quarries and tailings. Acid waste water from ore reservoirs, The difference between heavy metal ions and mineral dressing agents lies in the difference of heavy metal ions. The typical ferrous metal ores are mainly Tiannio Fetio as and the typical non-ferrous metals deposits are Cu PbPbZn-Zn-Cr. The main pollution factors of groundwater in typical nonmetallic mines are fluorine. (3) according to the principles of technical feasibility, economic rationality and low possibility of secondary pollution, the main groundwater remediation techniques are sorted and screened by grading. It is concluded that the sequence of remediation techniques for underground water pollution in Sichuan coal mines is permeation reaction wall, extraction treatment, microbial remediation, monitoring of natural attenuation, phytoremediation, and in situ chemical reduction. The order of remediation techniques for groundwater pollution in ferrous metal mines is extraction treatment, permeation reaction wall, microbial remediation, monitoring of natural attenuation, in-situ chemical reduction technology, phytoremediation, and extraction treatment of nonferrous metal ore groundwater remediation techniques. Permeation reaction walls, microbial remediation, in-situ chemical reduction, phytoremediation, monitoring of natural attenuation, remediation techniques for groundwater contamination in nonmetallic mines are classified as osmotic reaction walls, electric power, extraction treatment, phytoremediation, in situ chemical reduction, Monitor natural attenuation.
【學位授予單位】：成都理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：X523

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本文編號：2092504