餐厨垃圾与堆肥预处理的玉米秸秆混合厌氧发酵  

The Anaerobic Co-digestion of Food Waste and Corn Stalk Compost

作　　者：徐明[1,2] 毕捷[1,2] 季祥[1,2] 成杰[1,2] 曹菊梅[3] 蔡禄[1,2] XU Ming BI Jie JI Xiang CHENG Jie CAO Ju-mei CAI Lu(Inner Mongolia Key laboratory of Biomass-energy, Baotou 014010, China School of life science and technology, lnner Mongolia University of Science and Technology, Baotou 014010, China Baotou Drainage Industry Co Ltd, Baotou 014010, China)

机构地区：[1]内蒙古自治区生物质能源化利用重点实验室,内蒙古包头014010 [2]内蒙古科技大学生命科学与技术学院,内蒙古包头014010 [3]包头市排水产业有限责任公司,内蒙古包头014010

出　　处：《中国沼气》2017年第4期27-32,共6页China Biogas

基　　金：内蒙古自治区重大基础研究开放课题资助项目(201503001-4-3);包头市应用研发资金科技计划项目(2015Z2010-3);内蒙古自治区研究生科研创新项目(S20151012709)

摘　　要：试验采用经堆肥处理过的玉米秸秆与餐厨垃圾混合厌氧发酵来提升厌氧发酵系统的稳定性。结果表明:经Modified Gompertz模型拟合,餐厨垃圾与堆肥预处理的玉米秸秆以8∶2配比有最高的甲烷产气速率49 mL·g^(-1)VSd^(-1)(甲烷积累量543 mL·g^(-1)VS)。对发酵结束时氨氮和游离氨氮浓度的分析结果显示,餐厨垃圾与玉米秸秆或经过堆肥预处理的玉米秸秆混合发酵均能降低发酵体系中的氨氮和游离氨氮浓度。对发酵过程中pH值和CO_2/CH_4进行分析显示,玉米秸秆经堆肥预处理可以使厌氧发酵系统更稳定。The corn stalk compost was used to promote the anaerobic digestion of food waste at the thermophilic condition. Food waste were mixed with corn stalk compost or corn stalk with different volatile solids ratios （0： 10, 2： 8, 4： 6, 6： 8, 8： 2, 10 ：0）. The results showed that all treatment groups were well fitted the Modified Gompertz model. With the corn stalk compost,the ratio of 8：2 achieved the highest methane production rate of 49 mL ~ g- 1VSd - 1 （ methane production potential 543 mL ~ g - 1VS ）. Both corn stalk and corn stalk compost could reduce the build-up of ammonium nitrogen （TAN） and free amn^nia （ [NH3] ） in the sludge, thus subdued the subsequent inhibition for the anaerobic digestion. The values of pH and CO2/CH4 implied that the stability of anaerobic digestion of food waste system could be improved by adding corn stalk compost.

关 键 词：餐厨垃圾 厌氧消化 玉米秸秆 堆肥预处理 

分 类 号：S216.4[农业科学—农业机械化工程] X705[农业科学—农业工程]