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Shen Weizhen, Zhang Hongwei, Zhang Yu. Experiments on optimization of sewage sludge drying by paddle dryer[J]. Chinese Journal of Environmental Engineering, 2013, 7(11): 4575-4580.
Citation: Shen Weizhen, Zhang Hongwei, Zhang Yu. Experiments on optimization of sewage sludge drying by paddle dryer[J]. Chinese Journal of Environmental Engineering, 2013, 7(11): 4575-4580.
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Experiments on optimization of sewage sludge drying by paddle dryer

  • 1.

    Beijing Machinery and Electricity Institute, Hi-Tech Co. Ltd., Beijing 100027, China

  • Received Date: 26/07/2013
    Accepted Date: 27/03/2013
    Available Online: 21/11/2013
    Fund Project:
  • Paddle drying is a high efficient sludge drying process. In order to reduce sludge capacity by decreasing the sludge moisture content and provide the basis and reference for later engineering application and further upgrading reconstruction projects, some experiments were done using paddle dryer. Taking the Beijing sewage sludge as sample through paddle drying process, the effects of retention time, height of outlet damper, sludge allowance, and heat exchange area of the dryer on evaporation rate, the moisture content of sludge, and the processing efficiency were researched. Besides those, different factors including treatment efficiency, the data analysis of engineering application were investigated. The optimal operating conditions and parameters were steam pressure of 0.5~0.8 MPa, evaporation rate of 14~21.8 kg/(m2·h). The moisture content of sewage sludge after drying was below 40%.
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  • [1] 丘锦荣,吴启堂,卫泽斌,等.城市污泥干燥研究进展.生态环境,2007,16(2):667-671 Qiu J.R., Wu Q.T., Wei Z.B., et al.Research advances in municipal sludge drying. Ecological Environment,2007,16(2):667-671(in Chinese)

    Google Scholar Pub Med

    [2] Wei Y.S.,Fan Y.B.,Wang M.J. A cost analysis of sewage sludge composting for small and mid-scale municipal wastewater treatment plants.Resources, Conservation and Recycling,2001,33(3):203-216

    Google Scholar Pub Med

    [3] Strauss M., Larmie S.A., Heinss U. Treatment of sludges from on-site sanitation——Low-cost options. Water Science and Technology, 1997, 35(6):129-136

    Google Scholar Pub Med

    [4] Tae I.O., Jong S.C., Jeong E.K., et al. A study on the dewatering of industrial waste sludge by fry-drying technology.Journal of Hazardous Materials, 2009, 168(1): 445-450

    Google Scholar Pub Med

    [5] Stefanakisa A.I., Akratosa C.S., Melidisb P.,et al. Surplus activated sludge dewatering in pilot-scale sludge drying reed beds.Journal of Hazardous Materials, 2009, 172(2-3):1122-1130

    Google Scholar Pub Med

    [6] Alexandros I. S., Vassilios A. Tsihrintzis.Effect of various design and operation parameters on performance of pilot-scale sludge drying reed beds.Ecological Engineering, 2012,38(1):65-78

    Google Scholar Pub Med

    [7] Peregrinaa C., Rudolphb V., Lecomtea D. Immersion frying for the thermal drying of sewage sludge: An economic assessment.Journal of Environmental Management, 2008, 86(1): 246-261

    Google Scholar Pub Med

    [8] 马侠,蒋旭光,马增益,等. 桨叶式干燥机污泥干燥试验研究.能源工程,2006,1(3):56-60 Ma X.,Jiang X.G.,Ma Z.Y.,et al. Experimental study on drying sewage sludge with paddle dryer. Energy Engineering,2006,1(3):56-60(in Chinese)

    Google Scholar Pub Med

    [9] 韦朝海,陈传好.污泥处理、处置与利用的研究现状分析.城市环境与城市生态,1998,11(4):10-14 Wei C.H.,Chen C.H.The analysis of current research on the treatment disposal and utilization of sludge.Urban Environment & Urban Ecology,1998,11(4):10-14(in Chinese)

    Google Scholar Pub Med

    [10] Martin H., Gerrit E.Two examples of thermal drying of sewage sludge.Water Science and Technology,1996, 33(12): 235-242

    Google Scholar Pub Med

    [11] Nezih K.S.,Vedat P., Guray S. Solar drying in sludge management in Turkey.Renewable Energy,2007, 32(10):1661-1675

    Google Scholar Pub Med

    [12] Ruiz T., Wisniewski C., Kaosol T.,et al. Influence of organic content in dewatering and shrinkage of urban residual sludge under controlled atmospheric drying.Process Safety and Environmental Protection, 2007, 85(1):104-110

    Google Scholar Pub Med

    [13] Wang C.P., Yu Q.L., Sheng S.X., et al. The performance and environmental impact of the integrated spray drying and incineration demonstration project for dying sludge treatment.Procedia Environmental Sciences, 2012,16(7): 433-442

    Google Scholar Pub Med

    [14] Léonard A., Meneses E., Trong E. L., et al. Influence of back mixing on the convective drying of residual sludges in a fixed bed.Water Research,2008, 42(10-11): 2671-2677

    Google Scholar Pub Med

    [15] Slim R., Zoughaib A., Clodic D.Modeling of a solar and heat pump sludge drying system. International Journal of Refrigeration,2008,31(7):1156-1168

    Google Scholar Pub Med

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Experiments on optimization of sewage sludge drying by paddle dryer

  • Received Date: 26/07/2013
  • Accepted Date: 27/03/2013
  • Available Online: 21/11/2013
Fund Project:

Abstract: Paddle drying is a high efficient sludge drying process. In order to reduce sludge capacity by decreasing the sludge moisture content and provide the basis and reference for later engineering application and further upgrading reconstruction projects, some experiments were done using paddle dryer. Taking the Beijing sewage sludge as sample through paddle drying process, the effects of retention time, height of outlet damper, sludge allowance, and heat exchange area of the dryer on evaporation rate, the moisture content of sludge, and the processing efficiency were researched. Besides those, different factors including treatment efficiency, the data analysis of engineering application were investigated. The optimal operating conditions and parameters were steam pressure of 0.5~0.8 MPa, evaporation rate of 14~21.8 kg/(m2·h). The moisture content of sewage sludge after drying was below 40%.

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