CAJ | 학술논문

研究了混合比例和污泥停留时间对餐厨垃圾与污泥联合两相中温厌氧消化过程的影响。相较于餐厨垃圾与污泥TS比为1∶3的条件，TS比为1∶1时两相系统具有更好的产气效果、有机物去除效果和运行稳定性。随着SRT的延长，两相系统有机负荷逐步降低，产甲烷速率相应降低，单位体积进料产沼气量以及有机物去除率逐步提高。在餐厨垃圾与污泥TS比为1∶1的条件下，两相厌氧消化系统最佳SRT为25 d（产酸相和产甲烷相分别为5 d和20 d）；此时，沼气中甲烷含量高达71％，产甲烷速率和甲烷产率分别为0．7 L/L·d和0．69 L/gVS去除，两相系统VS去除率达到64．7％。
연구료혼합비례화오니정류시간대찬주랄급여오니연합량상중온염양소화과정적영향。상교우찬주랄급여오니TS비위1∶3적조건，TS비위1∶1시량상계통구유경호적산기효과、유궤물거제효과화운행은정성。수착SRT적연장，량상계통유궤부하축보강저，산갑완속솔상응강저，단위체적진료산소기량이급유궤물거제솔축보제고。재찬주랄급여오니TS비위1∶1적조건하，량상염양소화계통최가SRT위25 d（산산상화산갑완상분별위5 d화20 d）；차시，소기중갑완함량고체71％，산갑완속솔화갑완산솔분별위0．7 L/L·d화0．69 L/gVS거제，량상계통VS거제솔체도64．7％。
The impact of mixing proportion and sludge retention time on two-phase mesophilic anaerobic co-digestion for kitchen waste and sewage sludge was studied under mixing ratios of 1∶3 and 1∶1 on TS basis. Under the mixing ratio of 1∶1,more biogas was produced and more organic pollutants were removed,while better operation stability was observed,simultaneously. With the increase of sludge retention time,organic load and methane production rate of the two-phase co-digestion system decreased accordingly,while the biogas yield as well as organic pollutants removal rate increased,gradually. Under the mixing ratio of 1∶1,25 d was proved to be the optimum SRT of two-phase anaerobic co-digestion system while methane content,methane production rate,special methane production and VS removal rate reached 71%,0. 7 L/L·d,0. 69 L/gVSremoved and 64. 7%,respectively.