盐度对高含固鸡粪厌氧消化产甲烷的影响

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引用格式：，等.盐度对高含固鸡粪厌氧消化产甲烷的影响[J].湖南农业科学，2025（12）：60-65.DOI：10.16498/j.cnki.hnnykx.2025.012.011

中图分类号：X713 文献标识码：A 文章编号：1006-060X（2025）12-0060-06

Effect of Salinity on Methane Production from Anaerobic Digestion of Chicken Manure with HighSolidsContent

ZHANG Dan1，TANG Song-bo²， ZHANG Kai-jia²，XIE Chen²，HE Lu²，DAI Jin-peng1 （1.ChangshaCoutyureuofAgiculturenduralfairs，angsha，C;2.lgeofEroment&coga Agricultural University， Changsha 410128， PRC）

Abstract：Thisstudyaimedtoinvestigatetheefectsofsaliityontheanaerobicdigestionsystemandmethaneproductionofchicken manure.Chicken manurewas mixedwithaaerobicactivesudgeandsupplemented withNaClat0（CK），5.0（1），5.0（H2）d5. g/kg （H3）.The dynamicsofpH，electricalconuctiity（EC），hemical oxygendemand （COD），voatilefatyacids，ammoiaroen， and methane production were monitored.Theresultsshowed thatthesystemineach groupdemonstrated stableanaerobicdigestionof chicken manureand goodbuferingcapacity，withpH7.0-8.2.TheECineachgrouprose withfuctuationsovetimeandaised with theincreaseinsalinity.Salinityhadaminorinibitoryefectonthedegradationofnitrogencompounds.Aceticcidandpropionic acid werethemaincomponentsaccumulatedinthefermentationliquidineachgroup.Afterthereaction，themethaneproductionof Hl treatment was the highest， reaching 4863.16mL ，and the methane production of H1，H2，and H3 treatments increased by 46.69% （20 41.62% ，and 40.01% ，respectively，compared with that of CK. Therefore，adding an appropriate amount of NaCl can increase the methane production from anaerobic digestion ofchicken manure，and the addition of 5.0g/kg NaCl exerted the best yield-increasing effect.

Keywords：chicken manure; salinity;anaerobic digestion;methane production

在全球推进碳中和战略的背景下，畜禽养殖废弃物的资源化处理与高效利用已成为环境治理和能源转型的重要议题[]。（剩余8706字）