农村生活垃圾分类焚烧处理的环境效益分析
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
我国是一个农业大国,约有80%的人口居住在农村。随着生活水平的提高,农村生活垃圾的成分和产量不断增加,垃圾污染问题也越来越严重。为此,本文以兴国县高兴镇为例,通过对农村生活垃圾的产量和结构等调查,结合当地群众对垃圾处理的态度,运用层次分析法筛选出农村生活垃圾无害化处理的最佳方案。同时在高兴镇建立垃圾焚烧站,并且对其焚烧烟气进行环境影响评估。论文为农村生活垃圾无害化处理提供了新的方案,也为今后类似农村垃圾处理方式提供理论和实践依据。
     根据对村民的问卷调查,可知农村垃圾成分比城市垃圾简单,主要以厨余湿垃圾和干垃圾为主。厨余湿垃圾大部分都处理了,干垃圾基本不处理。随着生活水平的提高,村民环保意识越来越强。垃圾分类方面,村民绝大部分有分类处理的意识,但在行动方面做得不是很细致。
     为了了解兴国县农村生活垃圾产生状况,2009、2010年连续两年对兴国县高兴镇镇政府所在地高兴村和边远村庄老圩村的垃圾产量调查。根据调查结果,预计整个高兴镇人均每天产生湿垃圾33.09克·人/天,干垃圾23.695克·人/天,则每天产生垃圾量为56.785克·人/天,共计年产生湿垃圾621.2t/a,干垃圾444.8t/a,垃圾总量为1066t/a。
     为了进一步了解农村生活垃圾的组分和其相关物理性质,对垃圾进行组分、容重、含水率、灰分含量的测定。根据测定结果,农村生活垃圾物理成分主要为:有机植物、有机动物、纸类、塑料、灰土砖陶、纺织物、竹木和玻璃。含水率的平均值为72.226%;可燃物含量很高,平均含量为94.783%;根据计算结果,农村生活垃圾的低位发热值为2736.073 kJ/kg。干垃圾的低位发热值为5147.321kJ/kg。因此农村生活垃圾分类后,干垃圾的低位发热值完全可以达到垃圾焚烧的热值要求。
     结合兴国县的自然和社会因素情况、当地垃圾状况分析、研究区经济状况、当地环境质量状况以及研究区法律和政策等;四种垃圾处理方案的技术因素、环境影响、经济效益和社会;通过专家匿名打分法,运用层次分析法最终得出,垃圾分类焚烧法最终的权重值为0.2856,是最佳方案。
     根据评价等级划分,高兴镇垃圾焚烧炉大气环境影响评价等级为三级,直接以估算模式SCREEN3的计算结果作为预测分析依据。分析预测结果表明,垃圾未分类和分类后的焚烧烟气中各污染物的占标率小于1%,因此对周围大气环境质量影响都不大。
     将未分类和分类垃圾焚烧烟气进行比较:两种焚烧烟气的变化趋势基本一致。只是最大落地浓度对应的距离未分类垃圾比分类后垃圾要远,分别为315m和289m。垃圾分类后焚烧,不仅使垃圾低位发热值提高,更有利于焚烧,也降低了大气污染物的产生,减轻了垃圾焚烧对周围环境的影响。
     同时,分别计算其大气环境防护距离和卫生防护距离。卫生防护距离为50米,不需设置厂外大气环境防护距离,两者取其最大值,即垃圾焚烧炉的防护距离为50米。
China is a big agricultural country, about 80% of the population live in rural areas. With the improvement of living standards, the rural living garbage composition and production increases, garbage pollution problem also more and more serious.Therefore, this paper make Gao xing Zhen of Xing Guo in Jiangxi province as an example. Paper on rural living garbage output and structure of masses, combining local investigation garbage attitude, using ahp rural living garbage disposal were the best scheme. At the same time glad that the town establish waste incineration station, and its environmental impact assessment incineration flue gas. Papers for rural living garbage processing provides a new program, but also for future waste disposal in rural areas provide a similar theoretical and practical basis.
     According to a survey of villagers, we can see that municipal waste is more complex than the rural waste, The component part of rural life garbage mainly is kitchen wet waste and dry waste. Most of kitchen wet waste was treatmented, but dry waste almost was not processed. With the improvement of living standards, the villagers' environmental awareness is more and more strong. most villagers have consciousness of garbage classification, but waste classification was not so careful.
     In order to know the output of rural life garbage in Xingguo village, between 2009 and 2010,we investigate the output of rural life garbage at Gaoxing country where Xingguo village's government seat.The other investigated country is Laoxu country which is far away from the village. According to the survey, we predict in Gaoxing country everyone produce wet waste 33.09 grams everydays and dry waste 23.695 gram everydays, so the output of garbage is 56.785 grams per capita everydays. Amount to onel year, Gaoxing country produced wet waste 621.2 t/a, dry waste 444.8 t/a, garbage total 1066t/a.
     In order to learn more about the rural life garbage composition and its relevant physical properties,we checkout the waste fractions, bulk density, moisture content, ash content. According to the dating results, rural life garbage physical composition mainly about: organic plant, organic animals, paper, plastic, plaster brick of pottery, textiles, wood and glass.The average moisture content is72.226%.The burnable content is high,it attain 94.783%. According to the calculated results, the low calorific value of rural life garbage is 2736.073 kJ/kg. The low calorific value of dry compost is 5147.321 kJ/kg.dry mixed waste can be achieved low calorific value calorific value of waste incineration requirements.
     Combined with the natural and social factors master in Xingguo village, local waste condition analysis, research area economic conditions, local environment quality conditions and distribution law and policy, etc; four kinds of garbage disposal scheme technical factors, environmental impact, economic benefit and social; through expert anonymous scoring method, AHP to work out, garbage incineration is the final weight of 0.2856, is the best option.
     According to monitor the project evaluation hierarchies, Gaoxing country waste incineration flue gas atmospheric environmental impact assessment rating for the level 3, directed by calculating results of estimating model as forecast analysis basis. Analysis and forecasting results show that the accounted for standard rate of each pollutant in the unclassified and classified waste incineration flue gas is lesser than 1%, therefore the impact on the surrounding air quality is not great.
     The unclassified and classified waste incineration flue gas were compared:the changing trend of burn gas basically the same. But the largest concentration of landing distance of unclassification garbage is far more than classification garbage, respectively 315m and 289m.For classification garbage,it not only enhance the low calorific value of garbage and is more advantageous to burn,but also reduce atmospheric pollutants, reducing waste incineration impact to surrounding environment.
     At the same time,we calculated the atmospheric environmental protective distance and health protection distance. Health protection distance of 50 meters, without setting the atmospheric environment outside the plant protection zone, whichever is maximum, that is, protection from the incinerator is 50 meters.
引文
[1]李学辉.从基本入手破解农村垃圾难题[J].环境保护,2010,(6).
    [2]徐亦钢,俞飞,张孝飞等.我国农村环境污染的主要特点与成因[J].农业环境与发展,2006,(6).
    [3]张从.农村生活垃圾管理途径的新探索[J].环境保护,2009,(23).
    [4]杨曙辉,宋天庆,陈怀军等.中国农村垃圾污染问题试析[J].中国人口·资源与环境,2010,(S1).
    [5]孙跃跃,汪云甲.农村固体废弃物处理现状及对策分析[J].农业环境与发展,2007,(4).
    [6]艾平,张衍林,李善军等.农业废弃物处理技术的分析[J].农业环境与发展,2010,(1).
    [7]荣波,卫潘明,李彦富等.北京市生活垃圾成分分析及对应处理方式对策研究[J].环境保护,2004,(10).
    [8]耿燕礼,王道保,李素峰等.社会主义新农村建设中的垃圾处理问题初探——基于石家庄地区平原农村的调查[J].农业环境与发展,2007,(3).
    [9]李国朝,杨期勇,杨涛等.环鄱阳湖地区农村垃圾现状调研及对策[J].环境与可持续发展,2010(2):-4-6
    [10]江西推行“3+5”农村垃圾无害化处理模式[J].中国城市环境卫生,2010(4):-32-32
    [11]张静,仲跻胜,邵立明等.海南省琼海市农村生活垃圾产生特征及就地处理实践[J].农业环境科学学报,2009,(11).
    [12]曹作中,高海成,陈军平等.当前我国生活垃圾处理发展方向探讨[J].环境保护,2001,(10).
    [13]赵兴.东京的垃圾处理现状与发展[J].环境保护,1991,(8).
    [14]于晓勇,夏立江,陈仪等.北方典型农村生活垃圾分类模式初探——以曲周县王庄村为例[J].农业环境科学学报,2010,(8).
    [15]Donald. J. lisk. Environmental implication of incineration of municipal solid waste and ash disposal. Sei. total Environ.1988,74:3966.
    [16]JessW, Everett, AbhijitRModak.1996.Optimal Regional scheduling of solid waste system 1:Model development[J] Journal Environmental Engineering,122(9):785-292.
    [17]O.Eriksson, M. Carlsson Reich, B. Frostell. Municipal solid waste management from a systems perspective. Environmental Assessments and waste Management.2005,5.13(3).
    [18]乔启成,顾卫兵,顾晓丽等.分类收集效益模型在农村生活垃圾处理处置中的应用[J].环境污染与防治,2009,(5).
    [19]Li X M, Zeng G M, Wang M, etal. Prediction the amount of urban waste solids by applying a gray theoretical model [J]. Journal of Envi-ronmental Sciences,2003,15(1):43-46.
    [20]E.DaskaloPoulos,O.Badr and S.D. Probert. Municipal solid waste:a Prediction ethodology for the generation rate and composition in the European Union countries and the United States of America. Resoureces, Conservation and Reeycling.1998,11.24(2).
    [21]George T.2000. Integrated Solid Waste Management-Engineering Principles and Management Issues[M].Beijing: Tsinghua Publishing Company.193-238.
    [22]Koushki P A, Duaij U A, Ghimlas W A.2004. Collection and transportation cost of household solid waste[J]. Waste Management,24:957-964.
    [23]Iannotti D A., Gerbus M E.Toth B L.etal. Oxygen respirometry to assess stability and maturity of composted municipal solid waste[J].J.Enviornmantal Quality,1994,23:1177-1183.
    [24]Mbuligwe S E., Kassenga G R., Kaseva M E. etal. Potential and constraints of composting domestic solid waste in developing counties:findings from a pilot study in Dar es Salaam, Tanzania [J]. Resources, Conservation and Recycling,2002,36:45-59.
    [25]Zucconi F, de Bertoldi M. Compost specifications for the production and characterization of compost from municipal solid waste. Compost: Production, Quality and USe[M]. EIsevier Applied Science, Essex,1987,30-50.
    [26]Koushkip A, Duaij U A, Ghimlas W A.2004.Colleetion and transportation cost of household solid waste[J]. Waste Management,24:957-964.
    [27]何品晶,曹群科,冯军会等.生活垃圾焚烧副产物产生源特征[J].环境工程,2005,(4).
    [28]文科军,吴丽萍,杨丽等.可燃垃圾的焚烧热值分析[J].环境科学与技术,2007,(7).
    [29]张金成,姚强,吕子安.垃圾焚烧二次污染物的形成与控制技术[J].环境保护,2001,(5).
    [30]施敏芳,邵开忠.垃圾焚烧烟气净化和二噁英污染物的控制技术[J].环境科学与技术,2006,(9).
    [31]吴婧,韩兆兴,王逸汇,等.陕西省淳化县农户生活垃圾处理方案的比选与分析[J].生态与农村环境学报,2008,(1).
    [32]张记市,谢刚,王华.垃圾焚烧烟气净化处理技术[J].环境技术,2002,20(6):-26-30
    [33]傅立珩.生活垃圾焚烧烟气污染物的控制与处理工艺[J].环境卫生工程,2005,13(2):55-58
    [34]拦继元.层次分析法在环境污染防治规划中的应用[J].安徽农业科学,2010(7):3857-3858.
    [35]贾佳,徐晓军,张艮林.垃圾焚烧烟气的环境污染与净化技术[J].环境技术,2005,23(1):18-20,31
    [36]陈仪,夏立江,于晓勇等.不同类型农村住户生活垃圾特征识别[J].农业环境科学学报,2010,(4).
    [37]邵立明,何品晶,刘永德.农村生活垃圾源头分流收集效果影响因素分析[J].农业环境科学学报,2007,(1).
    [38]刘永德,何品晶,邵立明.太湖流域农村生活垃圾面源污染贡献值估算[J].农业环境科学学报,2008,(4).
    [39]武攀峰,崔春红,周立祥等.农村经济相对发达地区生活垃圾的产生特征与管理模式初探——以太湖地区农村为例[J].农业环境科学学报,2006,(1).
    [40]付美云.衡阳市农村垃圾现状调查与处置对策[J].农业环境与发展,2008,(5).
    [41]Sundaravadivel M, Vigneswaran S, Doeleman J A. Waste management in semi- urban areas of India: appropriate technological strategies to overcome financial barriers [J]. Environ Engg and Policy,2000, (2):91-104.
    [42]张靖,田一平.德国垃圾的环境管理模式[J].环境科学与技术,2004,(S1).
    [43]李颖,许少华.适合我国农村生活垃圾处理方式的选择——以北京市韩台村为例[J].农业环境与发展,2007,(3).
    [44]马英石瑞杰.基于模糊层次分析法的水环境承载力评价[J].安徽农业科学,2010(21):11405-11407.
    [45]杨凌云杨海根.层次分析法在大型垃圾焚烧处理项目场址比选中的应用[J].环境卫生工程,2010(3):38-40,43.
    [46]许诗康俞义樵.层次分析法在城市生活垃圾焚烧发电厂选址中的应用[J].重庆大学学报:自然科学版,2007,30(2):162-168.
    [47]聂曦张琦姚群.层次分析法在生活垃圾处置方案优选中的应用[J].工业安全与环保,2004,30(12):18-20,17.
    [48]郭怀成,尚金城,张天柱等.环境规划学[M].北京,高等教育出版社,2005
    [49]王华东,张敦富,郭宝森等.环境规划方法及实例[M].北京,化学业出版社,1998
    [50]郭爱民.层次分析法在方案优化中的应用研究[J].中国城市环境卫生协会会刊,1996(1):33-38.
    [51]曾现来张增强刘晓红.城市生活垃圾中各成分的权重模型的建立及验证[J].农业环境科学学报,2004,23(4):774-776.
    [52]梅红生,陈德珍,林瑜等.垃圾焚烧烟气高温净化反应产物的收尘技术[J].环境工程,2006,24(4):-36-39
    [53]刘兆明,赵爱华.垃圾焚烧烟气中二噁英的危害及治理[J].江苏环境科技,2000,13(4):-9-9,13
    [54]任东华,武超,沈建康等.生活垃圾焚烧烟气中的二噁英对大气环境影响评价[J].科技资讯,2010(29):-132-134
    [55]陈茂生宁平.垃圾焚烧厂的环境影响评价[J].环境科学导刊,2001(z1):134-137.
    [56]Korfmacher, K. S. Solid waste collection systems in developing urban areas of south Africa: an overview and case study [J]. Waste Manage Resource,1997, — 5:477-494
    [57]Lober D J. Mnnicipal Solid Wase and Public Partic pation in Household Source in European cities[J].Waste Management 1996,14(2):125-143.
    [58]万军明,林华斌.澳门城市垃圾的焚烧处置[J].环境工程,1999,(4).
    [59]何锡辉,.国外城市垃圾处理[J].环境工程,1984,(1).
    [60]苗立永,刘珉瑛,郑修清.垃圾焚烧厂环评中的主要问题及对策[J].环境保护,2010,(12).
    [61]周志广,田洪海,李楠等.小型焚烧设施烟气中二嗯英类的排放和控制[J].环境污染与防治,2007,(3).
    [62]付双立.垃圾焚烧烟气中二噁英类物质的控制[J].环境卫生工程,2005,13(3):55-56
    [63]吴燕琦,张小可.喷雾干燥脱硫法处理垃圾焚烧烟气的优化设计[J].环境卫生工程,2004,12(B06):69-70,72
    [64]孙冬,王玉才,谢春梅.垃圾焚烧烟气中污染物对人体健康风险评价[J].环境卫生工程,2004,12(3):-144-147
    [65]蒲舸,张力,辛明道.垃圾焚烧烟气喷雾干燥净化分析[J].重庆大学学报:自然科学版,2004,27(11):84-87
    [66]陈仲林杨春宇张青文许景峰.山地城镇建设光环境评价指标体系研究[J].灯与照明,2010,34(2): 8-10.
    [67]蔡明招,梁炽琼等.城市湿垃圾焚烧烟气中氮氧化物生成特性的研究[J].四川环境,2000,19(4):23-25
    [68]李忠林,染炽琼.城市模化垃圾焚烧烟气中二氧化硫的生态特性[J].重庆环境科学,2000,22(3):37-39
    [69]汪洪生,何德文.市政垃圾焚烧烟气净化浅论[J].环境卫生工程,1999,7(3):-116-120
    [70]陆吐布拉·依明赛皮娅古丽·艾比布力热汗古丽·吾买尔.基于层次分析法(AHP)的阿克苏地区生态环境综合评价[J].现代农业科技,2010(10):259-260,262.
    [71]焦学军,羌宁.生活垃圾焚烧烟气的净化工艺[J].上海环境科学,1998,17(4):38-40,50
    [72]朱廷钰,肖云汉等.循环流化床脱除氯化氢研究[J].环境科学学报,2001,21(2):-194-197
    [73]焦学军,羌宁.生活垃圾焚烧烟气的净化工艺[J].上海环境科学,1998,17(4):-38-40,50
    [74]姚宇平.垃圾焚烧烟气中HCl与消石灰的反应机理研究[J].煤矿环境保护,1999,13(1):-20-23
    [75]Metin E, Erozturk A, Neyim C. Solid waste management practices and review of recovery and recycling operations in Turkey [J]. Waste Management,2003,23:425-432.
    [76]Mason I G, Oberender A, Brooking A K. Source separation and potential re-use of resource residuals at a university campus [J]. Resources Conservation and Recycling,2004,40:155-172.
    [77]Lima J S, Queiroz J E G, Freitas H B. Effect of selected and non- selected urban waste compost on the initial growth of corn [J]. Resources Conservation and Recycling,2004,42:309-315.
    [78]汪洪生,何德文.市政垃圾焚烧烟气净化浅论[J].环境卫生工程,1999,7(3):-116-120
    [79]孙境蔚刘福红.基于层次分析法的生活垃圾分类收集方案的优化[J].环境科学与管理, 2009,34(12):15-17,44.
    [80]勾红英.生活垃圾分类收集方案的优化[J].四川理工学院学报:自然科学版,2007,20(4):108-11O.
    [81]康淑娟,王学涛,陈昊.垃圾焚烧烟气中NOx脱除技术的研究进展[J].电站系统工程,2010(3):-1-3
    [82]董珂,闫志海,赵昕哲等.半干式净化工艺在垃圾焚烧烟气净化中的应用[J].制冷空调与电力机械,2008,29(3):-88-90,77
    [83]解海卫,张于峰,张艳.垃圾焚烧烟气旋转喷雾干燥净化的实验研究[J].动力工程,2007,27(5):-793-796
    [84]鲁钢.半干法袋式除尘器净化垃圾焚烧烟气技术[J].环境科学动态,2005(3):-38-40
    [85]吴立,邓福生.垃圾焚烧烟气中氯化氢的干法去除研究[J].资源调查与环境,2005,26(3):-214-220
    [86]张孝棋.生活垃圾焚烧发电厂的大气环境影响评价[J].海峡科学,2009(6):28-30.
    [87]林楚雄吴学农等.对深圳垃圾焚烧厂环评的综述及探讨[J].中国环境管理(吉林),2002(3):27-29.
    [88]关小红陆雍森等.垃圾焚烧厂的环境影响评价[J].环境监测管理与技术,2001,13(5):25-28.
    [89]游智鹏张明.层次分析法在决策问题中的应用[J].硅谷,2010(21):112-112,75.
    [90]杨凌云杨海根.层次分析法在大型垃圾焚烧处理项目场址比选中的应用[J].环境卫生工程,2010(3): 38-40,43.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700