响应面法优化干清猪粪半干法连续厌氧发酵试验参数  

Optimization of the Continuous Anaerobic Fermentation Experiment Parameters of Semi-dried Pig Manure by Using Response Surface Method

作　　者：陈文成 袁存亮[1] 张重[1] 李靖 裴海林[1] 邢向欣[1] 孙京 赵国明[1] CHEN Wen-cheng;YUAN Cun-liang;ZHANG Zhong(Jilin Academy of Agricultural Machinery,Changchun,Jilin 130022)

机构地区：[1]吉林省农业机械研究院,吉林长春130022

出　　处：《安徽农业科学》2023年第24期196-201,208,共7页Journal of Anhui Agricultural Sciences

基　　金：吉林省科技发展计划项目(20210202009NC)。

摘　　要：为实现干清猪粪连续高效厌氧发酵,以干清猪粪为原料进行连续厌氧发酵试验,利用实验室自制连续厌氧发酵反应器探究水力滞留时间(HRT)、搅拌间隔与搅拌转速对干清猪粪连续厌氧发酵的影响,采用响应面分析法进行参数优化,得到最优参数组合:HRT 19 d、搅拌间隔2 h、搅拌转速30 r/min。经过干清猪粪连续厌氧发酵试验验证,其平均日产气量达23.48 L,VS降解率56.47%,平均容积产气率2.35 L/(L·d),能够实现干清猪粪连续厌氧发酵的高效稳定运行。因此,干清猪粪的无害化处理可采用半干法连续厌氧发酵运行,从而实现干清猪粪的资源化利用。In order to realize the continuous and efficient anaerobic fermentation of dry pig manure,the continuous anaerobic fermentation test was carried out with dry pig manure as raw materials.The effects of hydraulic retention time(HRT),stirring interval and stirring speed on the continuous anaerobic fermentation of dry pig manure were studied by using the self-made continuous anaerobic fermentation reactor in the laboratory.The response surface analysis method was used to optimize the experiment parameters,and the optimal parameter combination was obtained as follows:HRT 19 d,stirring interval 2 h,and stirring speed 30 r/min.The average daily gas yield was up to 23.48 L after the continuous anaerobic fermentation test of dry pig manure.VS degradation rate was 56.47%,and the average volumetric gas production rate was 2.35 L/(L·d),which could achieve efficient and stable operation of dry pig manure continuous anaerobic fermentation.Therefore,the harmless treatment of dry pig manure could be operated by semi-dry continuous anaerobic fermentation,so as to realize the resource utilization of dry pig manure.

关 键 词：干清猪粪 半干法 连续厌氧发酵 参数优化 

分 类 号：X713[环境科学与工程—环境工程]