厨余垃圾堆肥产出物中重金属含量分析及潜在风险评价研究

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中图分类号：X820.4

文章编号：1674-6139（2025）06-0151-05

文献标志码：B

Content Analysis and Potential Risk Assessment of Heavy Metal in Compost Made with Kitchen Waste

Lai Jinli 1，2 ，Wang Xiaoyan1，2， Sun Yu1，2 ，Cai Xiaobo1，2，Ren Xiaoling 1，2 （1.Beijing City Management Research Institute，Beijing 100028，China; 2.Beijing Key Laboratory of Domestic Waste Testing Analysisand Evaluation，Beijing 1OOo28，China）

Abstract：Inordertoanalyzeheavymetalsof thecompostmadewithitchenwaste，representativecompostsampleswerecolected fromfourdiferentproceses，whicharecharacterizedbyhightemperaturecomposting，dyamiccomposting，rapidcompostakingand on-sitecompostreatment.Inthissudyontentofhavymetalssuchssenic，mercuryleadcadmimandchromminopost samples wereanalyzed.The concentrations of As，Hg，Pb，Gdand Cr in all the compost samples ranged from 0.03～4.36 ， 0.01～0.78 ， 0.00＼～26.80，0.00＼～2.30， 2.40～124.00mg/kg ．The average concentrations of As， Hg ，Pb，Gd and Cr were 1.03，0.27，10.71， 0.71， 28.59mg/kg ，respectively.Theresult reached thestandardof NationalLimit Standards Organic Fertilizer（NY/T525-2021）. Singlefactorplutionindexmethod，comprehensivepolutionindexmethodandpotentialeologicalhazardindexmethodwereusedto evaluatetheriskof4typesofsamples，andtheresultsshowedthatheavymetalpolutionwaslessharmful totheenvironment.

Keywords：kitchen waste；compost；heavy metal pollution；risk assessment

前言

农业农村部《关于2023年全国肥料质量监督抽查情况的通报》中，有机肥料抽样结果合格率为

76.6% ，存在总碑、总铅、总镉等重金属超标情况。（剩余5004字）