本文關(guān)鍵詞： 銅 鋅 磷酸鹽 吸附 淋溶 紅壤　出處：《Transactions of Nonferrous Metals Society of China》2016年02期 　論文類型：期刊論文

【摘要】：采用批式吸附實(shí)驗(yàn)和土柱實(shí)驗(yàn)研究KH_2PO_4、(NH_4)H_2PO_4和Ca(H_2PO_4)_2對(duì)銅和鋅在紅壤中的吸附和淋溶特性。結(jié)果表明:這3種磷酸鹽都能極大地提高紅壤對(duì)銅和鋅的吸附能力,其影響大小順序?yàn)镃a(H_2PO_4)_2KH_2PO_4(NH4)H_2PO_4。磷酸鹽的添加對(duì)銅的遷移性影響不大。Ca(H_2PO_4)_2和(NH_4)H_2PO_4能較大地提高鋅在紅壤中的移動(dòng)性。3種磷酸鹽都能促進(jìn)銅和鋅的形態(tài)由非殘?jiān)鼞B(tài)向殘?jiān)鼞B(tài)轉(zhuǎn)化,但是同樣會(huì)增加其可交換態(tài)和碳酸鹽結(jié)合態(tài)的含量。
[Abstract]:Batch adsorption experiment and soil column experiment were used to study KH_2PO_4. H2PO4 and CaH2PO4). The adsorption and leaching characteristics of copper and zinc in red soil were studied. The results showed that the adsorption capacity of copper and zinc on red soil could be greatly improved by these three phosphate. The order of influence is CaH2PO4, 2KH2PO4, 2KH2PO4, H2PO4. The addition of phosphate has little effect on the mobility of copper. CaH2PO4). The mobility of zinc in red soil can be greatly improved by the addition of S _ 2 and NH _ 4H _ 2PO _ 4. 3 phosphate can promote the transformation of copper and zinc from non-residuals to residuals. But it also increases the content of exchangeable and carbonate bound states.
【作者單位】： 湖南大學(xué)環(huán)境科學(xué)與工程學(xué)院;湖南大學(xué)環(huán)境生物與控制教育部重點(diǎn)實(shí)驗(yàn)室;長江科學(xué)院水土保持研究所;西南民族大學(xué)旅游與歷史文化學(xué)院;
【基金】：Project(41271294)supported by the National Natural Science Foundation of China Project(NCET-09-330)supported by Program for New Century Excellent Talents in University,China
【分類號(hào)】：X131.3
【正文快照】： 1 Introduction In the past decades, heavy metal pollution has been considered as one of the most environment concern around the world and received more and more attention.Anthropogenic industrial and agriculture activities including sewage discharge, st，

本文編號(hào)：1463142