廚余垃圾堆肥產(chǎn)出物中重金屬含量分析及潛在風(fēng)險評價研究
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中圖分類號：X820.4
文章編號：1674-6139（2025）06-0151-05
文獻標(biāo)志碼：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
農(nóng)業(yè)農(nóng)村部《關(guān)于2023年全國肥料質(zhì)量監(jiān)督抽查情況的通報》中，有機肥料抽樣結(jié)果合格率為
76.6% ，存在總碑、總鉛、總鎘等重金屬超標(biāo)情況。（剩余5004字）