添加磷尾矿对堆肥质量及 NH3,H2S 排放的影响

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关键词:磷尾矿;好氧堆肥;臭气排放;堆肥质量
中图分类号:X512;X705;S141.4 文献标志码:A 文章编号:1672-2043(2026)01-0213-13 doi:10.11654/jaes.2025-0030
The impact of adding phosphate tailings on compost quality and NH3 and H2S emissions
LAI Haiyu 1,3,LU Tongrui1,³,ZHANGDongli1,³,ZHANGLanxia²³,LUO Wenhai²³,HOU Yong2,3 ,ZHANG Wei¹,ZHONG Shunhe3,4, WANG Chunrong³4,LIUFei34, ZHU Qichao²2* (1.SchlofsodtuttUsityoia;lfod AgriculturalUniversityeijingOol93,China;3.KeyLaboratoryfSouthwestOrganicCycleEngineringCenterMinistryofAgriculue andRuralAfairs,Dali672Oo,China;4.YunnanShunfengErhaiEnvironmentalProtectionTechnology,Dali670,Cina) Abstract:Iodertootietheerobcompostigprocessaceleratetheompostingefet,andducedorssougthe composting processThisstudyused a mixture ofcow manure,tobacco dust,and sugarcane bagasseas substrates,and aded 2.5% , 5% , (20 7.5% ,and 10% ofthetotaldryweightofthesubstrate tophosphorustailingsastreatmentgroups,respectively.Nophosphorus tailings were addedasaontrol.Teicalandchemicalpropertis,utrietcontentchangesandodormissoncharacteristcssuchsoa ( NH3 )and hydrogen sulfide ( H2S )during the composting process were studied. The results showed that compared with the control treatment,the addition of phosphate tailings could reduce the bulk density of the compost by 3%-10% ,reduce H2S emissions by 50%⋅ 1 (20 74% ,decrease the comprehensive odor intensity by 2.8%-74% ,and reduce EC values by 1%-8% . It significantly improved the germination index(GI) of compost seeds by 26%-34% ,exchangeable calcium by 4%-60% ,exchangeable magnesium by 8%-37% ,but increased NH 13 emissions by 2 .8%-52.8% . Overall, the 7.5% addition has the best effect,reducing H2S emissions by 74% ,decreasing odor intensity by 5.3% ,increasing GI value by 32% ,and meeting the organic fertilizer production standards for ammonium nitrogen(NH4-N) andheavymetalcotent.Reseachasshotatteappropateadditionofphospatetailingscnfectivelyimprovethestuctuef te heap,reduce H2S emissions,and decreaseodor intensitywhich helps toimprove composting eficiencyand quality,andachieve the harmless and resource utilization of industrial and agricultural solid waste phosphate tailings and cow manure.
.eywords:phosphate tailings; aerobic composting; odor emissions; compostingquality
农业废弃物包括畜禽粪便、作物剩余物和废渣等,产量大且成分复杂。(剩余24878字)