植物工厂生物质废弃物厌氧消化循环利用可行性探讨
Feasibility Assessment of the Anaerobic Digestion and Cyclic Utilization System of Biomass Wastes in Plant Factory
徐得天 1石惠娴 1裴晓梅 2孟祥真 1朱洪光1
作者信息
- 1. 同济大学新农村发展研究院,同济大学国家设施农业工程技术研究中心,上海200092
- 2. 同济大学建筑与城市规划学院,上海200092
- 折叠
摘要
针对植物工厂生物质废弃物的特点,在总结已有文献的基础上,参考传统预处理和厌氧发酵系统常用工艺,制订了植物工厂废弃物厌氧消化循环利用系统,创造性地将单乙醇胺法脱硫用于沼气脱硫上,对系统进行了完善.从该系统主要组成部分包括预处理系统、厌氧消化系统、沼气净化系统、沼气、沼液和沼渣(三沼)利用等方面,从植物工厂生物质废弃物厌氧消化循环利用的角度,对其进行了可行性分析.结果表明:植物工厂生物质废弃物厌氧消化循环利用三沼可行,但受植物工厂规模的限制,不同规模的植物工厂生物质厌氧消化沼气产量不同,小型植物工厂废弃物厌氧发酵后沼气不适合用于供热、发电,仅适合小规模使用(如沼气灯、沼气灶等),大型植物工厂废弃物厌氧发酵产生的沼气可以用于供热和发电.
Abstract
According to the characteristics of biomass wastes in plant factory and on the basis of conventional pretreatment and anaerobic fermentation technology,a cyclic utilization system aiming to dispose bio-waste and replace the chemical fertilizer was designed.In this system,the mono ethanol amine desulfurization was used for purifying biogas,gradually perfecting the system's function.The system includes five component:Raw material screening,crushing,pretreatment system;anaerobic digestion system;Biogas purification system and biogas slurry as fertilizer to plant factory application technology.The feasibilityof the system is analyzed and calculated from the point of view of recycling.Results shows that the cyclic utilization system of biogas wastes is practicable.Neverthless,it was limited by the scale of plant factory.Depending on the size of the plant factory,anaerobic digestion biogas yield is different,bio-wastes in small plant factory product a little methane,it is not suitable for heating or power generation,only for small scale use such as gas lights,gas stoves and so forth,large scale plant factory produced biogas can be used for heating and power generation.
关键词
厌氧消化/沼气/脱硫/沼液/沼渣/循环利用Key words
Anaerobic digestion/Biogas slurry/Cyclic utilization引用本文复制引用
基金项目
国家高技术研究发展计划(863计划)资助项目(2013AA103006-02)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据