不同填充率与曝气工艺对滚筒堆肥效果的影响

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中图分类号:S141.4 文献标志码:A 文章编号:1008-0864(2025)09-0172-09
Effects of Different Filling Rate and Aeration Technology on Composting Effect of Roller
WU Jiang 1,2 , CHENG Hongsheng²,³,DING Jingtao²3, SHEN Yujun 1,2* , ZHOU Haibin 2,3 GUO Wenxiu1.2, ZHANG Ying2.3
(1.CollegeofEngineering,HeilongjangBayiAgricultualUnivesity,HeilongjiangDaqing63319,China;2InstituteofEnrn EnvironmentalProtetioeaeluralEngnglang&Dsistyfculurua, Beijing100125,hina;3.KeyLaboraoryofTchologndModelfoCylicUlzation,hineseAcaeyofAgriculturalEng Planning&Design,Ministryof Agriculture andRural Affairs,Beijing1Oo125,China)
Abstract:Inorder tocomprehensivelyevaluatetheefectsof diffrentfllingratesandaerationprocessesontheeffect of rollr compost,the pig manure and straw wereused as raw materials,and took the harmless compost treatment effct,fertilizerqualityandeconomicandenvironmentalprotectionasevaluationindexes,theefectsofdifrent filing rates(O.6Oand O.75)andaeration processes (staged aeration process and constant aeration process)on the compost effect were studied.Theresultsshowedthatthe filling rate hada significant impacton theefectof rollr composting.The high filingrate(O.75)was helpful to improve the fertilizeryieldand increase the material handling capacityperunit volumereactor,but it would prolong the harmless treatment time,reduced thequalityoffertilizer, and increased the emission of hydrogen sulfide gas ( H2S ).The main reason affecting the effect of high filling rate composting was thatthe material was diffcult to mix intheearlystage.Low filing rate(O.6O)could beter promote therapid harmless material and improve the qualityof fertilizer,but it would increase ammonia( NH3 )emissions, butthe treatment efficiencyand fertilizerproductionrate wererelatively low,affecting theeconomyof the drum. Diferent aeration processes had a significant impact on the composting efect.Theuse of segmentation aeration process was more conducive to improve the harmlesstreatment efect of materials,shorten the harmless treatment time,improve fertilizer quality,and reduce operation energy consumption and ammonia ⟨NH3 )emission,but increasing hydrogen sulfide ( ΔH2S )emission.Above results provided technical support for the engineering application of roller composting technology.
Keywords:filling rate;aeration process;roller compost;aerobic fermentation
堆肥是实现畜禽粪便无害化及资源化的重要手段和主要途径1。(剩余13670字)