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时间:2020-04-20
《污泥堆肥过程中无机磷浸提形态研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、2013年26卷6期西南农业学报V0L26NO.6SouthwestChinaJournalofAgculturalSciences2403文章编号:1001—4829(2013)06—2403—04污泥堆肥过程中无机磷浸提形态研究张成,王昌桃2,郑罗崇都。,钟文挺,李纪堂,任哓波,杨勋(1.成都市农业技术推广总站,四川成都610041;2.四川省农业科学院土壤肥料研究所,四川成都610066;3.都江堰市农发局,四川都江堰611830)摘要:采用强制通风静态好氧堆肥与自然通风好氧堆肥相结合的堆肥方法,研究了不同秸秆填充物料对污泥堆肥
2、中的NHCI.P、A1·P、Fe—P、O—P、Ca-P含量的影响。结果表明:污泥堆肥的NHC1一P、A1-P、Fe—P和O-P含量在快速堆腐阶段先降低后升高,并在后腐熟阶段趋于稳定。堆肥结束时,受“浓缩效应”影响,污泥堆肥的NHC1一P、AI.P、Fe—P、O—P和Ca—P含量分别比初始值增加了1.15%~29.27%、14.29%一37.59%、8.21%~3O.24%、15.98%~23.71%和160.71%一202.45%;堆肥中无机磷以NH4CI·P、A1一P和0一P为主,分别占无机磷总量的17.39%~23.47%、47.
3、27%~53.91%和24.82%一25.29%。小麦秸秆段+污泥处理通过提高A1一P和0.P含量而显著增加了污泥堆肥的无机磷含量。关键词:污泥;堆肥;秸秆;无机磷形态中图分类号:$141.6文献标识码:AStudyonExtractionSpeciesofInorganicPhosphorusFormsduringCompostingofSewageSludgeZHANGCheng,WANGChang.tao。ZHENGLUOChong—du3ZHONGWen—ting,LIJi—tang,RENXiao—bo,YANGXun,,(
4、1.ChengduAculturalTechnologyExtensionStation,SichuanChengdu610041,China;2.SoilandFertilizerInstitute,SichuanAcademyofAculturalSciences,SiehuanChengdu610066,China;3.DujiangyanBureauofRuralDevelopment,SiehuanDujiangyan611830,Chi—na)Abstract:TheobjectiveofthiBstudyistoinve
5、stigatethetransformationofinorganicphosphorusformsduringco-compostingofsewagesludgeandstmwsinaeratedstaticpilecompostingsystemandnaturalventilationfermentationsystem.TheresultsshowedthatthecontentofNH4C1一P,Al-P,Fe—P,O·Pofsewagesludgecompostfirstdecreasedandthenincreased
6、duringtherapidcompostingstage,andtendedtobestableduringthematuritystage.Becauseofconcentrationefect,thecontentofNH4C1-P,A1一P,Fe-P,O—PandCa—Pofsewagesludgecompostin—creasedby1.15%一29.27%,14.29%一37.59%,8.21%一30.24%。15.98%一23.71%,160.71%~202.45%,respectively,bytheendofthee
7、xperiment.NH4C1一P,AI-PandOPformedthechiefinstitutionsofinorganicphosphorusofsewagesludgecompost,andtheyoccupied17.39%-23.47%,47.27%一53.9l%and24.82%一25.29%,respectively.Thetotalinorganicphosphoruscontentofcompostwhichconsistedofsewagesludgeandwheatsectionincreasedsignifi
8、cantly,benefitingfromitsincrementofA1·Pand0一P.Keywords:Sewagesludge;Compost;Straw;Inorganicphosphorusforms城市污泥
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