高级搜索

污水处理厂污泥干化焚烧处理可行性分析

,  ,  , 

downloadPDF

上一篇

下一篇

李博, 王飞, 严建华, 池涌. 污水处理厂污泥干化焚烧处理可行性分析[J]. 环境工程学报, 2012, 6(10): 3399-3404.
引用本文: 李博, 王飞, 严建华, 池涌. 污水处理厂污泥干化焚烧处理可行性分析[J]. 环境工程学报, 2012, 6(10): 3399-3404.
shu
Li Bo, Wang Fei, Yan Jianhua, Chi Yong. Feasibility analysis on drying and incineration of sewage sludge from a wastewater treatment plant[J]. Chinese Journal of Environmental Engineering, 2012, 6(10): 3399-3404.
Citation: Li Bo, Wang Fei, Yan Jianhua, Chi Yong. Feasibility analysis on drying and incineration of sewage sludge from a wastewater treatment plant[J]. Chinese Journal of Environmental Engineering, 2012, 6(10): 3399-3404.
shu

污水处理厂污泥干化焚烧处理可行性分析

  • 1.

    浙江大学能源清洁利用国家重点实验室, 杭州 310027

  • 基金项目:

    国家重点基础研究发展(973)计划(2011CB201506)

    水体污染控制与治理科技重大专项资助(2009ZX07317-003)

    国家高技术研究发展计划(863)项目(2009AA064704)

    浙江省重大科技专项资助项目(2007C03003)

  • 中图分类号: X705

Feasibility analysis on drying and incineration of sewage sludge from a wastewater treatment plant

  • Fund Project:

  • 摘要: 以绍兴污水处理厂脱水污泥为研究对象,通过实验分析了污泥进行干化焚烧处理的可行性。对污泥泥质进行分析,采用桨叶式污泥干化机对污泥的热干化特性、干化过程污染排放特性进行研究,使用流化床污泥焚烧试验装置对污泥焚烧工况及焚烧过程中污染物的排放特征进行研究,结果表明,绍兴污水处理厂脱水污泥的泥质特征与大多数污水污泥类似,灰分较高、发热量较低,需干化后才可实现稳定燃烧;污泥在小型桨叶式污泥干化机内的干化速率最高达到0.6 kg/(m2·min),并随污泥干化的进行而逐渐降低;干化过程产生的常规污染气体中氨气浓度最高,可达170 mg/Nm3;污泥干化冷凝水的COD高达820 mg/L,氨氮等指标也很高。污泥干化系统的设计需充分考虑污泥热干化过程中气体和液体污染物的排放,设置相应的处理设施。污泥干化至含水率30%时,可在不投加辅助燃料的情况下实现流化床焚烧炉内的焚烧处理,干化污泥焚烧时需关注烟气中常规污染气体和重金属的控制,焚烧灰渣浸出毒性未超过国标限值。
    Abstract: Experiments were carried out in a paddle sludge drying machine and a fluidized bed incinerator to analyze the feasibility of drying and incineration treatment of sewage sludge from Shaoxing Wastewater Treatment Plant (WTP).The sludge natures,as well as the contaminants emission during the treatment process were detected.Results show that,the sludge from Shaoxing WTP has similar characteristics with other sewage sludge,as the ash content is relativily high and the heating value is relativily low.The drying rate can reach up to 0.6 kg/(m2·min) in the small paddle drying machine and a drop of drying rate also appear during the process.The concentration of ammonia,which is the main pollution gas during the sludge drying process,can reach up to 170 mg/Nm3.The condensate from sludge drying process should be treated before discharge,as its COD can reach up to 820 mg/L.Sewage sludge from Shaoxing WTP would combust without any auxiliary fuel when its water content is lower than 30% after drying.The noxious gases and heavy metals in the flue gas should be taken seriously.The leaching toxicity of sludge incineration ash is below the national standard limits.
  • 加载中
  • [1] Mininni G.,Di Bartolo Zuccarello R.,Lotito V.,et al.A design model of sewage sludge incineration plants with energy recovery.Water Science and Technology,1997.36(11):211-218
    [2] Ogada T.,Werther J.Combustion characteristics of wet sludge in a fluidized bed.Fuel,1996.75(5):617-626
    [3] Werther J.,Ogada T.Sewage sludge combustion.Progress in Energy and Combustion Science,1999,25(1):55-116
    [4] 李军,王忠民,张宁.污泥焚烧工艺技术研究.环境工程,2005,23(6):48-52 Li Jun,Wang Zhongmin,Zhang Ning.The study on the wastewater sludge incineration technology.Environmental Engineering,2005,23(6):48-52(in Chinese)
    [5] 李爱民,曲艳丽,杨子贤,等.污水污泥干燥过程中表观形态变化及水分析出特性.化工学报,2004,55(6):1011-1015 Li Aimin,Qu Yanli,Yang Zixian.Surface cinfiguration and moisture transference during sewage sludge drying.Journal of Chemical Industry and Engineering(China),2004,55(6):1011-1015(in Chinese)
    [6] 黄凌军,杜红,鲁承虎,等.欧洲污泥干化焚烧处理技术的应用与发展趋势.给水排水,2003,29(11):19-22 Huang Lingjun,Du Hong,Lu Chenghu.Application and development of sludge drying and incineration in Europe.Water & Wastewater Engineering,2003,29(11):19-22(in Chinese)
    [7] Lowe P.Developments in the thermal drying of sewage sludge.J.Inst.Waste & Environ.Mang.1995,9(6):306-310
    [8] Yamahata Y.,Izawa H.Experimental study on application of paddle dryers for sludge cake drying.Proceeding of the 4th International Drying Symposium,Kyoto,1984
    [9] Imoto Y.,Kasakura T.The state of the art of sludge drying in Japan.Drying Technology,1993,11(7):1495-1522
    [10] 马侠,蒋旭光,马增益,等.桨叶式干化机污泥干化试验研究.能源工程,2006(3):57-60 Ma Xia,Jiang Xuguang,Ma Zengyi,et al.Experimental study on drying sewage sludge with paddle dryer.Energy Engineering,2006,(3):57-60(in Chinese)
    [11] Vesilind P.A.Ramsey T.B.Effect of drying temperature on the fuel value of wastewater sludge.Waste Management,1996.14(2):189-196
    [12] 王兴润,金宜英,王志玉,等.污水污泥间壁热干燥实验研究.环境科学,2007,28(3):407-410 Wang Xingrun,Jin Yiying,Wang Zhiyu,et al.Experimental research on indirect thermal drying process of sewage sludge.Environmental Science,2007,28(3):407-410(in Chinese)
    [13] Shimizu T.,Toyono M.Emissions of NO<em>x and N2O during co-combustion of dried sewage sludge with coal in a circulating fluidized bed combustor.Fuel,2007,86(15):2308-2315
    [14] Shao J.,Yan R.,Chen H.,et al.Emission characteristics of heavy metals and organic pollutants from the combustion of sewage sludge in a fluidized bed combustor.Energy & Fuels,2008,22(4):2278-2283
    [15] Yasuhara A.Role of inorganic chlorides in formation of PCDDs,PCDFs,and coplanar PCBs from combustion of plastics,newspaper,and pulp in an incinerator.Environmental Science and Technology,2002,36(18):3924-3927
    [16] Park J.M.,Lee S.B.,Kim J.P.,et al.Behavior of PAHs from sewage sludge incinerators in Korea.Waste Management,2009,29(2):690-695
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2744
  • HTML全文浏览数:  1521
  • PDF下载数:  1463
  • 施引文献:  0
出版历程
  • 收稿日期:  2011-12-09
  • 刊出日期:  2012-10-16
李博, 王飞, 严建华, 池涌. 污水处理厂污泥干化焚烧处理可行性分析[J]. 环境工程学报, 2012, 6(10): 3399-3404.
引用本文: 李博, 王飞, 严建华, 池涌. 污水处理厂污泥干化焚烧处理可行性分析[J]. 环境工程学报, 2012, 6(10): 3399-3404.
shu
Li Bo, Wang Fei, Yan Jianhua, Chi Yong. Feasibility analysis on drying and incineration of sewage sludge from a wastewater treatment plant[J]. Chinese Journal of Environmental Engineering, 2012, 6(10): 3399-3404.
Citation: Li Bo, Wang Fei, Yan Jianhua, Chi Yong. Feasibility analysis on drying and incineration of sewage sludge from a wastewater treatment plant[J]. Chinese Journal of Environmental Engineering, 2012, 6(10): 3399-3404.
shu

污水处理厂污泥干化焚烧处理可行性分析

  • 1. 浙江大学能源清洁利用国家重点实验室, 杭州 310027
  • 收稿日期:  2011-12-09
基金项目:

国家重点基础研究发展(973)计划(2011CB201506)

水体污染控制与治理科技重大专项资助(2009ZX07317-003)

国家高技术研究发展计划(863)项目(2009AA064704)

浙江省重大科技专项资助项目(2007C03003)

摘要: 以绍兴污水处理厂脱水污泥为研究对象,通过实验分析了污泥进行干化焚烧处理的可行性。对污泥泥质进行分析,采用桨叶式污泥干化机对污泥的热干化特性、干化过程污染排放特性进行研究,使用流化床污泥焚烧试验装置对污泥焚烧工况及焚烧过程中污染物的排放特征进行研究,结果表明,绍兴污水处理厂脱水污泥的泥质特征与大多数污水污泥类似,灰分较高、发热量较低,需干化后才可实现稳定燃烧;污泥在小型桨叶式污泥干化机内的干化速率最高达到0.6 kg/(m2·min),并随污泥干化的进行而逐渐降低;干化过程产生的常规污染气体中氨气浓度最高,可达170 mg/Nm3;污泥干化冷凝水的COD高达820 mg/L,氨氮等指标也很高。污泥干化系统的设计需充分考虑污泥热干化过程中气体和液体污染物的排放,设置相应的处理设施。污泥干化至含水率30%时,可在不投加辅助燃料的情况下实现流化床焚烧炉内的焚烧处理,干化污泥焚烧时需关注烟气中常规污染气体和重金属的控制,焚烧灰渣浸出毒性未超过国标限值。

English Abstract

    全文HTML

参考文献 (16)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心