摘要
文章在对常州市武进区礼嘉镇进行面源生物质废弃物调研的基础上详细比较了生物质废弃物发酵制备燃料乙醇技术、生物质废弃物发酵制沼气技术、生物质废弃物气化炉技术以及生物质废弃物焚烧发电技术,从技术、经济、应用前景等多方面考量并最终筛选出适合于礼嘉镇试点区域的生物质废弃物利用技术。在对所选技术的应用实例进行调查研究的基础上建立了太湖流域废弃生物质能源资源化的总体方案:本方案拟定在试点区域结合实际情况将部分不适宜用于发酵制备燃料乙醇的农作物秸秆以及禽畜粪便、生活污水污泥等各类生物质废弃物用于生物质发酵制沼气项目,以满足当地部分居民的日常生活所需,同时收集剩余适宜制备燃料乙醇的生物质秸秆用于建设具有广阔应用前景的生物质发酵制备乙醇项目,对体系中产生的污水污泥等废弃物以污泥亚临界水热处理技术予以预处理后用于发酵制备沼气项目。总体方案每年生产燃料乙醇1 875.7 t,生产沼气259.2万m3,副产有机肥1 874.8 t,产生经济效益1 608万元,10年运行期的净收益现值为12 555.4万元,是具有广阔前景且行之有效的循环经济方案,是推动自然生态和人类社会和谐发展的绿色经济方案。
To tackle the problems of increasing agricultural wastes, nowadays designated as waste biomass, surveys were conducted at Lijia Town on the shore of Lake Taihu about the amount of waste biomass generation and the relevant environmental conditions in the areas; in addition, technologies of ethanol production using waste-biomass and biogas production by fermentation of waste biomass, biomass gasifier technology as well as electricity generation by waste biomass combustion were studied and compared from the perspectives of technology feasibility and economy. Furthermore, on the basis of the surveys a waste biomass reuse program was worked out for the whole area of Lake Taihu watershed. According to the program, in some places waste biomass such as crop stalks, poultry manure and sewage sludge, not suitable for ethanol production, could be used to produce biogas to meet the needs of farmers household; and others, mainly crop stalks and straw suitable for making ethanol as fuel should be properly gathered and collected. Finally, cost/benefit analysis of the program during the operation period of ten years was made.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2013年第12期210-217,共8页
Environmental Science & Technology
基金
国家"十一五"水体污染控制与治理科技重大专项子子课题:流域面源生物质废弃物能源资源化总体方案(2009zx0701-015)
关键词
资源化方案
废弃生物质能源
太湖流域
resources reuse program
waste biomass energy
Lake Taihu watershed
