本文選題：礦山固體廢棄物 + 淋濾試驗(yàn)　； 參考：《礦業(yè)安全與環(huán)保》2017年04期

【摘要】：以礦山固體廢棄物為研究對(duì)象,利用自主研制的淋濾儀器,模擬自然降雨對(duì)礦山廢石的淋濾過(guò)程,探索污染元素及其淋濾規(guī)律。試驗(yàn)結(jié)果表明:(1)不同試驗(yàn)條件下的淋濾液電導(dǎo)率k變化趨勢(shì)相同,k—t曲線整體呈下降趨勢(shì);(2)對(duì)于pH值,新鮮和風(fēng)化廢石有明顯不同的淋濾規(guī)律;(3)不同試驗(yàn)條件下的淋濾液SO_4~(2-)濃度c變化趨勢(shì)相同,c—t曲線整體均呈下降趨勢(shì);(4)相同風(fēng)化程度下,降雨強(qiáng)度越大,淋濾液k越小,c越小,pH值變化不明顯;(5)相同降雨強(qiáng)度下,風(fēng)化程度越高,淋濾液k越大,c越大,pH值越低;(6)綜合來(lái)看,風(fēng)化程度對(duì)于淋濾液的k、pH值、c等的影響均大于降雨強(qiáng)度的影響。
[Abstract]:Taking the mine solid waste as the research object, the leaching process of mine waste rock by natural rainfall was simulated by using the self-developed leaching instrument, and the pollution elements and their leaching rules were explored.The results showed that the K change trend of leaching fluid conductivity under different experimental conditions was the same as that of K / t curve.The leaching law of fresh and weathered waste rocks is obviously different. (3) under different experimental conditions, the rainfall intensity increases with the increase of rainfall intensity under the same changing trend of concentration c of the leachate so _ 4 ~ (2)) the whole curve of c-t is in a downward trend. (4) under the same weathering degree, the rainfall intensity increases.Under the same rainfall intensity, the higher the weathering degree, the bigger the leaching filtrate k, the larger the pH value, the lower the pH value, the lower the pH value.The influence of weathering degree on the pH value of leaching filtrate was greater than that on rainfall intensity.
【作者單位】： 西安科技大學(xué)地質(zhì)與環(huán)境學(xué)院;
【基金】：國(guó)家自然科學(xué)基金面上項(xiàng)目(41572287);國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(41130753) 陜西省科技統(tǒng)籌創(chuàng)新工程計(jì)劃項(xiàng)目(2016KTCL03-19) 陜西省省級(jí)自然類科研項(xiàng)目(15JK1166)
【分類號(hào)】：X752
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本文編號(hào)：1742287