Eluting agent for repairing arsenic and benzopyrene in composite polluted soil and repairing method

• Main Authors: ZHU HANGHAI, YIN GUANGCAI, WEI TIAN, HE ZECHEN
• Format: Patent
• Language: Chinese; English
• Published: 07.07.2023
• Subjects: ADHESIVES; CHEMISTRY; DISPOSAL OF SOLID WASTE; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PERFORMING OPERATIONS; POLISHES; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

The invention discloses an eluting agent for repairing arsenic and benzopyrene in composite polluted soil and a repairing method, the eluting agent is composed of organic acid and a biosurfactant, and the volume ratio of the organic acid to the biosurfactant is 1: 1; the remediation method comprises the step of remediating arsenic and benzopyrene in the compound contaminated soil by adopting a compound eluting agent of organic acid and a biological surfactant in a certain volume ratio. The technical problems that an existing eluting agent has secondary pollution, the removal efficiency is limited, and the treatment cost is high are solved; in addition, the compound eluting agent is high in removal rate of As and BaP in the compound contaminated soil, and can meet the remediation requirement for actual site soil. 本发明公开了一种用于修复复合污染土壤砷、笨并芘的淋洗剂及修复方法，所述淋洗剂由有机酸和生物表面活性剂组成，所述有机酸和生物表面活性剂的体积比为1：1；所述修复方法包括：采用一定体积比的有机酸和生物表面活性剂复配淋洗剂修复复合污染土壤砷、笨并芘。本发明不但解决了现有淋洗剂存在二次污染、去除效率有限且处理成本高的技术问题；而且复配淋洗剂对复合污染土壤中As、BaP去除率较高，对实际场地土壤能达到修复要