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 Sur-face Method
陈文成 1袁存亮 1张重 1李靖 1裴海林 1邢向欣 1孙京 1赵国明1
作者信息
- 1. 吉林省农业机械研究院,吉林长春 130022
- 折叠
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2h、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.
Abstract
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 labo-ratory.The response surface analysis method was used to optimize the experiment parameters,and the optimal parameter combination was ob-tained 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 continu-ous 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 harm-less 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Key words
Dry pig manure/Semi-dried method/Continuous anaerobic fermentation/Parameter optimization引用本文复制引用
基金项目
吉林省科技发展计划项目(20210202009NC)
出版年
2023
国家科技期刊平台
NSTL
维普
万方数据