異位淋洗修復(fù)工藝研究進展

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摘 要：物理篩分、化學(xué)提取、物理化學(xué)聯(lián)合應(yīng)用等3種典型異位淋洗修復(fù)工藝由采礦與選礦工業(yè)發(fā)展而來。該文闡述了物理篩分、化學(xué)提取、物理化學(xué)聯(lián)合工藝的應(yīng)用原理，總結(jié)了物理化學(xué)聯(lián)合工藝的基本流程路線及業(yè)內(nèi)應(yīng)用情況，分析了上述工藝的適用條件和特性，并提出了幾點建議，為異位淋洗技術(shù)研究及工藝篩選提供參考。

關(guān)鍵詞：物理篩分;化學(xué)提取;聯(lián)合應(yīng)用;工藝對比;研究進展

中圖分類號 TQ423 文獻標(biāo)識碼 A 文章編號 1007-7731（2022）03-0195-04

Abstract： Three typical ex-situ leaching remediation processes， including physical screening， chemical extraction， and combined application of physical chemistry， were developed from the mining and mineral processing industries. This article elaborates the application principles， applicable conditions， and characteristics of the physical screening， chemical extraction， and physical and chemical combined processes in detail， and focuses on the basic process routes and industry applications of the physical and chemical combined processes. Finally， combined with the introduction of the application characteristics of the above process， a summary and suggestion are made to provide guidance and reference for the research of ectopic leaching technology and process screening.

Key words： Physical sieving; Chemical extraction; Combined application; Process comparison; Research progress

根據(jù)2014年環(huán)境保護部和國土資源部發(fā)布的《全國土壤污染狀況調(diào)查公報》顯示，全國土壤環(huán)境總體狀況不容樂觀，無機污染與有機污染并存，從污染分布情況看，南方土壤污染重于北方，其中尤其以鎘、汞、砷、銅、鉛、鉻、鋅、鎳等重金屬污染類型為主[1]。（剩余6176字）