摘要
为解决西藏自治区污泥处置问题,找到适合西藏地区的污泥资源化利用方法,通过采样分析,并与代表性城市对比,总结了西藏污泥的热化学特性;通过灰色模型计算,预测了近5年的污泥量;结合平原地区的经验,提出了生物处理、热干化处理与生物-热化学耦合处理3类资源化利用方案,分别介绍其技术路线、测算其应用潜力。结果表明:西藏污泥具有高碳氢、高挥发分、低重金属含量的特性;预计到2022年,污泥量可达1.56×10^5 t;好氧堆肥、厌氧发酵、热解、协同焚烧、制备RDF燃料、发酵耦合气化6种技术均具有一定的应用潜力。由于清洁度高、成本低、可持续提供清洁燃料,厌氧发酵与制备RDF燃料2种技术更具推广潜力。本研究结果可为西藏污泥的资源化利用提供技术与政策参考。
In order to solve the problem of sludge disposal in Tibet Autonomous Region and find a suitable method of sludge resource utilization in Tibet,China.The thermochemical characteristics of Tibetan SS were summarized through sample analysis and comparison with the representative cities.The SS amount in recent 5 years was predicted by the grey model calculation.Combined with the experience of the plain area,three resource utilization plans of biological treatment methods,thermal utilization methods and biological coupling thermal utilization method were proposed,and their technical routes and application potential analysis were addressed,respectively.The results showed that SS in Tibet Autonomous Region had high carbon-hydrogen and volatile content,low heavy metal content.The SS yield was predicted to reach 1.56×10^5 t in 2022.Six utilization methods of aerobic composting,anaerobic digestion,pyrolysis,co-incineration,RDF fuel preparation and anaerobic digestion coupled gasification present certain application potential.Of which anaerobic digestion and RDF fuel preparation are worth promoting because of low pollution,low cost and the ability to provide clean fuels.This study provides technical and political guidance for SS utilization in Tibet Autonomous Region.
作者
王旭彤
张蕊
颜蓓蓓
陈冠益
侯立安
旦增
WANG Xutong;ZHANG Rui;YAN Beibei;CHEN Guanyi;HOU Li′an;DAN Zeng(School of Environmental Science and Engineering,Tianjin University,Tianjin 300072,China;School of Science,Tibet University,Lhasa 850012,China;Logistics Science and Technology Research Institute of Rocket Army,Beijing 100011,China)
出处
《环境工程学报》
CAS
CSCD
北大核心
2019年第11期2753-2769,共17页
Chinese Journal of Environmental Engineering
基金
天津市自然科学基金资助项目(16JCZDJC39600)
国家自然科学基金资助项目(51676138).
关键词
西藏自治区
市政污泥
特性分析
潜力分析
资源化
Tibet Autonomous Region
sewage sludge
characteristic analysis
potential analysis
utilization
