低温热解耦合高压等离子体技术处理农村生活垃圾工程应用
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摘要
采用30 t/d的低温热解耦合高压等离子体工艺技术处理农村生活垃圾。结果表明:工程运行稳定后对农村生活垃圾可充分减量化、无害化和资源化,排放的烟气与废渣中各项指标均符合国家排放标准。其中每个碳化热解炉生活垃圾处理量达0. 65 t/h,热解碳化后废渣产生率为12%,废渣中Pn、Hg、As浸出浓度在最高允许限值内;热解产生烟气经高压等离子体烟气净化系统处理后,二噁英、SO_2、NOx-N物、颗粒物等主要污染物排放均满足GB 18485—2014《生活垃圾焚烧污染控制标准》。低温热解耦合高压等离子体工艺技术处理农村生活垃圾工程占地面积小、建设周期快、运行效果稳定、运维成本低,为农村生活垃圾处理提供了较理想的解决方案。
The low temperature pyrolysis coupled high pressure plasma process technology was used to treat rural domestic wastes by 30 t/d. After the project operated stably,the rural domestic waste can be fully reduced,become harmless and reusable,and all features of the flue gas and residues discharged met China's national discharge standards. Moreover,the amount of domestic waste treated in each carbonized pyrolysis furnace was 0. 65 t/h,and the generation rate of waste residues after pyrolysis and carbonization reached 12%. The leaching toxicity of lead,mercury and arsenic in the waste residues were within the maximum allowable limit. The discharge of major pollutants from the flue gas generated from pyrolysis such as dioxins,sulfur dioxide,nitrogen oxides and particulate matters met the Standard for Pollution Control on the Municipal Solid Waste Incineration( GB 18485—2014) after the treatment by the high-pressure plasma flue gas purification system. This technology has the advantages of small footprint,quick construction period,stable operation effect and low operation and maintenance cost,turns out to be a good solution for the treatment of rural domestic wastes.
The low temperature pyrolysis coupled high pressure plasma process technology was used to treat rural domestic wastes by 30 t/d. After the project operated stably,the rural domestic waste can be fully reduced,become harmless and reusable,and all features of the flue gas and residues discharged met China's national discharge standards. Moreover,the amount of domestic waste treated in each carbonized pyrolysis furnace was 0. 65 t/h,and the generation rate of waste residues after pyrolysis and carbonization reached 12%. The leaching toxicity of lead,mercury and arsenic in the waste residues were within the maximum allowable limit. The discharge of major pollutants from the flue gas generated from pyrolysis such as dioxins,sulfur dioxide,nitrogen oxides and particulate matters met the Standard for Pollution Control on the Municipal Solid Waste Incineration( GB 18485—2014) after the treatment by the high-pressure plasma flue gas purification system. This technology has the advantages of small footprint,quick construction period,stable operation effect and low operation and maintenance cost,turns out to be a good solution for the treatment of rural domestic wastes.
引文
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[12]王鹏飞.村镇生活垃圾热解气化炉参数设计与优化产气研究[D].北京:北京建筑大学,2016.
[13]范琳.生活垃圾立式双回路热解炉的技术特点[J].能源与环境,2013(6):50-51.
[14]夏夕科.生活垃圾热解烟气净化设备研究与应用[D].西安:西安建筑科技大学,2013.
[15]桂莉.农村生活垃圾热解污染物排放特征研究[D].广州:华南理工大学,2014.
[2]王君.我国农村垃圾分类问题现状与改进对策[J].环境卫生工程,2017,25(1):24-26.
[3]李晓胜.小流域洪水预报方法研究及应用[J].农业科技与信息,2017(24):35-36.
[4]王蕾,刘思成,荀世忠,等.城市生活垃圾处理方式的对比研究[J].环境科学与管理,2017,42(7):29-31.
[5]陈平,程建光,陈俊.垃圾焚烧过程中的烟气污染及其控制[J].环境科学与管理,2006,31(5):116-118.
[6]刘劲松,潘荷芳,巩宏平,等.农村小型生活垃圾焚烧炉周边环境二噁英类污染物来源及分布规律研究[C]//持久性有机污染物论坛2008暨持久性有机污染物全国学术研讨会,2008.
[7]袁浩然,鲁涛,熊祖鸿,等.城市生活垃圾热解气化技术研究进展[J].化工进展,2012,31(2):421-427.
[8]孙婷.广西农村生活垃圾处理绩效评估与收运决策研究[D].南宁:广西大学,2017.
[9]环境保护部,国家质量监督检验检疫总局. GB 18485—2014生活垃圾焚烧污染控制标准[S].北京:中国环境科学出版社,2014.
[10]钱尧翎.论新型无轴螺旋输送机研发应用[J].科技资讯,2016,14(6):65,67.
[11]程潞样,赵春晖,王科.无轴螺旋输送机[J].起重运输机械,2016(8):16-18.
[12]王鹏飞.村镇生活垃圾热解气化炉参数设计与优化产气研究[D].北京:北京建筑大学,2016.
[13]范琳.生活垃圾立式双回路热解炉的技术特点[J].能源与环境,2013(6):50-51.
[14]夏夕科.生活垃圾热解烟气净化设备研究与应用[D].西安:西安建筑科技大学,2013.
[15]桂莉.农村生活垃圾热解污染物排放特征研究[D].广州:华南理工大学,2014.