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不同生态床对剩余污泥脱水和稳定化的影响

侯 霜 李子富 张 扬

侯 霜, 李子富, 张 扬. 不同生态床对剩余污泥脱水和稳定化的影响[J]. 环境科学研究, 2015, 28(4): 589-595.
引用本文: 侯 霜, 李子富, 张 扬. 不同生态床对剩余污泥脱水和稳定化的影响[J]. 环境科学研究, 2015, 28(4): 589-595.
HOU Shuang, LI Zifu, ZHANG Yang. Dewatering and Stability of Thickened Municipal Sludge Treated in Different Ecological Wetland Beds[J]. Research of Environmental Sciences, 2015, 28(4): 589-595.
Citation: HOU Shuang, LI Zifu, ZHANG Yang. Dewatering and Stability of Thickened Municipal Sludge Treated in Different Ecological Wetland Beds[J]. Research of Environmental Sciences, 2015, 28(4): 589-595.

不同生态床对剩余污泥脱水和稳定化的影响

基金项目: 中央高校基本科研业务费专项资金(FRF-1C-11-001); 昆明市科技计划项目(2012-01-10-A-G-01-0001)

Dewatering and Stability of Thickened Municipal Sludge Treated in Different Ecological Wetland Beds

  • 摘要: 对比分析传统干化床、芦苇生态床及芦苇-蚯蚓复合生态床3种处理方式对城镇污水处理厂剩余污泥的处理效果. 结果表明:传统干化床处理简单易行、成本低,但脱水效率低,处理15 d后污泥含水率仍在79.8%左右. 芦苇生态床较传统干化床具有明显优势,其处置后污泥含水率可降至67.8%,但其对有机质、TN、TP的去除效果不明显. 芦苇-蚯蚓复合生态床对污泥脱水效果最佳:①污泥含水率由原来的95.1%降至44.4%,体积明显减少,达到了污泥减量化的目标;②扫描电镜试验显示,处理后污泥具有孔隙及片状结构,有利于水分散失;③污泥中w(有机质)、w(TN)、w(TP)分别降低了14.5%、20.3%和13.2%左右. 热重分析发现,污泥中不稳定化合物含量有所降低. 经芦苇-蚯蚓复合生态床处理后,Cu、Ni、Zn、Cr残渣态所占比例分别由原污泥的3.2%、23.7%、15.2%、55.8%增至73.3%、43.1%、78.3%和78.6%,大幅降低了重金属的迁移风险,并且污泥红外图谱显示─COOH和酰胺明显增多,有利于重金属的稳定. 综上,复合生态床可有效实现污泥减量,并且降低了二次污染的风险.

     

  • [1] 张丽丽,李花粉,苏德纯.我国城市污水处理厂污泥中重金属分布特征及变化规律.环境科学研究,2013,6(3):313-319.ZHANG Lili,LI Huafen,SU Dechun.Characteristics and changes of heavy metals in sewage sludge of China.Research of Environmental Sciences,2013,6(3):313-319.
    [2] 银奕,周晓琴,李子富,等.污泥生态化处理处置技术研究进展.2013年中国环境科学学术年会论文集(第五卷).北京:中国环境科学学会,2013:5425-5429.
    [3] 梁敏,陶虎春,倪晋仁,等.石田螺处理城市剩余污泥试验.环境科学研究,2010,3(9):1180-1184.LIANG Min,TAO Huchun,NI Jinren,et al.Treatment of municipal excess sludge by Sinotaia quadrata.Research of Environmental Sciences,2010,3(9):1180-1184.
    [4] 刘敬勇,孙水裕,许燕滨.广州市污水污泥中的重金属及其农用探讨.环境科学研究,2010,3(11):1441-1446.LIU Jingyong,SUN Shuiyu,XU Yanbin.Content and fraction of heavy metals in sewage sludge and its farmland application in Guangzhou.Research of Environmental Sciences,2010,3(11):1441-1446.
    [5] 住房和城乡建设部.中国城市建设统计年鉴.北京:中国计划出版社,2013.
    [6] UGGETTI E,LLORENS E,PEDESCOLL A,et al.Sludge dewatering and stabilization in drying reed beds:characterization of three full-scale systems in Catalonia,Spain.Bioresource Technology,2009,0(17):3882-3890.
    [7] 刘峥嵘,钟雨薇,龚刚强,等.模拟人工湿地芦苇床中城市污泥脱水和稳定化的试验研究.广东化工,2012,9(3):125-126.LIU Zhengrong,ZHONG Yuwei,GONG Gangqiang,et al.Experiment on dewatering and mineralization municipal sludge of municipal sludge in a constructed sludge drying reed bed.Guangdong Chemical Industry,2012,9(3):125-126.
    [8] STEFANAKIS A I,AKRATOS C S,MELIDIS P,et al.Surplus activated sludge dewatering in pilot-scale sludge drying reed beds.Journal of Hazardous Materials,2009,2(2):1122-1130.
    [9] 吴敏,杨健.蚯蚓生态床处理剩余污泥.中国给水排水,2003,9(5):59-60.
    [10] STEFANAKIS A I,KOMILIS D P,TSIHRINTZIS V A.Stability and maturity of thickened wastewater sludge treated in pilot-scale sludge treatment wetlands.Water Research,2011,5(19):6441-6452.
    [11] 建设部.CJ/T 221─2005 城市污水处理厂污泥检验方法.北京:中国标准出版社,2005.
    [12] QUEVAUVILLER P,RAURET G,LPEZ-SNCHEZ J F,et al.Certification of trace metal extractable contents in a sediment reference material (CRM 601) following a three-step sequential extraction procedure.Science of the Total Environment,1997,5(2):223-234.
    [13] 杨健,易当皓,赵丽敏,等.蚯蚓生物滤池处理剩余污泥的效果.中国环境科学,2008,8(10):892-897.YANG Jian,YI Danghao,ZHAO Limin,et al.Effect of excess sludge treatment in earthworm bio-filter.China Environmental Science,2008,8(10):892-897.
    [14] 孙红杰,崔玉波,王芳,等.芦苇床与传统干化床污泥脱水和稳定性能比较.安全与环境学报,2011,1(6):81-84.SUN Hongjie,CUI Yubo,WANG Fang,et al.Comparison of residual sludge dewatering and stabilization between reed beds and conventional sludge drying bed.Journal of Safety and Environment,2011,1(6):81-84.
    [15] XING Meiyan,LI Xiaowei,YANG Jian,et al.Performance and mechanism of vermifiltration system for liquid-state sewage sludge treatment using molecular and stable isotopic techniques.Chemical Engineering Journal,2012,7(0):143-150.
    [16] FERRASSE J H,CHAVEZ S,ARLABOSSE P,et al.Chemometrics as a tool for the analysis of evolved gas during the thermal treatment of sewage sludge using coupled TG-FTIR.Thermochimica Acta,2003,4(1/2):97-108.
    [17] GAO Ningbo,LI Juanjuan,QI Benyu,et al.Thermal analysis and products distribution of dried sewage sludge pyrolysis.Journal of Analytical and Applied Pyrolysis,2014,5:43-48.
    [18] DE OLIVEIRA SILVA J,FILHO G R,DA SILVA MEIRELES C,et al.Thermal analysis and FTIR studies of sewage sludge produced in treatment plants:the case of sludge in the city of Uberlandia-MG,Brazil.Thermochimica Acta,2012,8:72-75.
    [19] 张卫信,陈迪马,赵灿灿.蚯蚓在生态系统中的作用.生物多样性,2007,5(2):142-153.ZHANG Weixin,CHEN Dima,ZHAO Cancan.Functions of earthworm in ecosystem.Biodiversity Science,2007,5(2):142-153.
    [20] HAIT S,TARE V.Vermistabilization of primary sewage sludge.Bioresource Technology,2011,2(3):2812-2820.
    [21] LE BAYON R C,BINET F.Earthworms change the distribution and availability of phosphorous in organic substrates.Soil Biology and Biochemistry,2005,8:235-246.
    [22] BOHLEN P J,EDWARDS C A,ZHANG Q,et al.Indirect effects of earthworms on microbial assimilation of labile carbon.Applied Soil Ecology,2002,0(3):255-261.
    [23] LVAREZ E A,MOCHN M C,SNCHEZ J C J,et al.Heavy metal extractable forms in sludge from wastewater treatment plants.Chemosphere,2002,7(7):765-775.
    [24] ANTONIADIS V,ALLOWAY B J.The role of dissolved organic carbon in the mobility of Cd,Ni and Zn in sewage sludge-amended soils.Environmental Pollution,2002,7(3):515-521.
    [25] ASHWORTH D J,ALLOWAY B J.Soil mobility of sewage sludge-derived dissolved organic matter,copper,nickel and zinc.Environmental Pollution,2004,7(1):137-144.
    [26] YANG Jian,ZHAO Chunhui,XING Mmeiyan,et al.Enhancement stabilization of heavy metals (Zn,Pb,Cr and Cu) during vermifiltration of liquid-state sludge.Bioresource Technology,2013,6:649-655.
    [27] 涂剑成.污水厂污泥中重金属脱除技术及污泥特性变化的研究.哈尔滨:哈尔滨工业大学,2011:103-111.
    [28] 吴幼权,郑怀礼,张鹏,等.复合絮凝剂CAM-CPAM的制备及其污泥脱水性能.环境科学研究,2009,2(5):535-539.WU Youquan,ZHENG Huaili,ZHANG Peng,et al.Sludge dewatering performance and preparation of composite flocculants CAM-CPAM.Research of Environmental Sciences,2009,2(5):535-539.
    [29] SMIDT E,PARRAVICINI V.Effect of sewage sludge treatment and additional aerobic post-stabilization revealed by infrared spectroscopy and multivariate data analysis.Bioresource Technology,2009,0(5):1775-1780.
    [30] YANG Jian,LV Baoyi,ZHANG Jie,et al.Insight into the roles of earthworm in vermicomposting of sewage sludge by determining the water-extracts through chemical and spectroscopic methods.Bioresource Technology,2014,4:94-100.
    [31] SANTOS E B H,DUARTE A C.The influence of pulp and paper mill effluents on the composition of the humic fraction of aquatic organic matter.Water Research,1998,2(3):597-608.
    [32] BUCK C,LANGMAACK M,SCHRADER S.Nutrient content of earthworm casts influenced by different mulch types.European Journal of Soil Biology,1999,5(1):23-30.
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