2023·02本刊特稿1ModernChemicalResearch当代化工研究2023·02本刊特稿1ModernChemicalResearch当代化工研究老龄垃圾渗滤液电化学过氧化(ECP)处理技术*罗振江1,2王阳1,2路克平1,2赵振伟1,2路望3陈男3(1.山东省地矿工程勘察院(山东省地质矿产勘查开发局八〇一水文地质工程地质大队)山东2500142.山东省地下水环境保护与修复工程技术研究中心山东2500143.中国地质大学(北京)水资源与环境学院北京100083)摘要:老龄垃圾渗滤液(OLL)具有高污染负荷和高处理难度。电化学过氧化(ECP)是一种有效的电化学水处理技术。本研究使用ECP处理OLL,在pH7.9和30mA·cm-2的电流密度下,获得了91.2%的COD和45.3%的TN去除效率。荧光光谱表明,类胡敏酸类大分子有机质被快速去除,荧光强度下降了99.1%。处理过程中絮凝机制和过氧化机制是污染负荷快速去除和OLL急性细胞毒性降低的主要原因,且处理后对发光细菌Vibriofischeri的光抑制率下降了34.3%。本研究为使用ECP技术处理OLL的实际工程应用提供了重要的理论指导。关键词:电化学过氧化;老龄垃圾渗滤液;COD;TN;急性细胞毒性中图分类号:X7文献标识码:ATreatmentofAgedLandfillLeachatebyElectrochemicalPeroxidation(ECP)LuoZhenjiang1,2,WangYang1,2,LuKeping1,2,ZhaoZhenwei1,2,LuWang3,ChenNan3(1.801InstituteofHydrogeologyandEngineeringGeology,ShandongProvincialBureauofGeology&MineralResources,Shandong,2500142.ShandongEngineeringResearchCenterforEnvironmentalProtectionandRemediationonGroundwater,Shandong,2500143.SchoolofWaterResourcesandEnvironment,ChinaUniversityofGeosciences(Beijing),Beijing,100083)Abstract:Theoldlandfillleachate(OLL)hashighpollutionloadsandtreatmentdifficulty.Electrochemicalperoxidation(ECP)isaneffectiveelectrochemicalwatertreatmenttechnology.Inthisstudy,theremovalefficiencyof91.2%CODand45.3%TNwasobtainedusingECPtreatmentofOLLunderthepH7.9andcurrentdensityof30mA·cm-2.ThefluorescencespectraduringECPtreatmentshowedthathumic-acidlikemacromolecularorganicmatterwasrapidlyremoved,andthefluorescenceintensitydecreasedby99.1%.DuringECPtreatment,theflocculationandperoxidationmechanismsarethemainreasonsfortherapidremovalofpollutionloads,andthereducedacutecytotoxicity.ThephotoinhibitionrateofOLLt...