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王辰, 刘宏波, 符波, 祖叶品, 刘和. 连续在线滤袋式淤泥脱水技术[J]. 环境工程学报, 2013, 7(11): 4547-4552.
引用本文: 王辰, 刘宏波, 符波, 祖叶品, 刘和. 连续在线滤袋式淤泥脱水技术[J]. 环境工程学报, 2013, 7(11): 4547-4552.
shu
Wang Chen, Liu Hongbo, Fu Bo, Zu Yepin, Liu He. Continuous on-line operation for silt dewatering by filter bag[J]. Chinese Journal of Environmental Engineering, 2013, 7(11): 4547-4552.
Citation: Wang Chen, Liu Hongbo, Fu Bo, Zu Yepin, Liu He. Continuous on-line operation for silt dewatering by filter bag[J]. Chinese Journal of Environmental Engineering, 2013, 7(11): 4547-4552.
shu

连续在线滤袋式淤泥脱水技术

  • 1.

    江南大学环境与土木工程学院环境生物技术研究室, 无锡 214122

  • 基金项目:

    中央高校基本科研业务费专项资金(JUSRP11206)

    江南大学环境与土木工程学院院长基金(yzjj1103)

    教育部新世纪人才项目(NCET-10-0455)

  • 中图分类号: X705

Continuous on-line operation for silt dewatering by filter bag

  • 1.

    Laboratory of Environmental Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China

  • Fund Project:

  • 摘要: 以太湖淤泥为研究对象,研究了絮凝剂和滤袋性质对淤泥脱水性能的影响,并进行了滤袋脱水中试研究。结果表明,淤泥的含水率为90%时,在PAM和PAC最佳添加量55 mg/L和1 000 mg/L条件下,淤泥比阻从8.7×107 s2/g降低到2.0×107 s2/g,Zeta电位从-28.77 mV变成-4.68 mV,滤袋平均过滤速度提高了137.9%,脱水性能显著提升。不同含水率下的实验得出了淤泥的最佳絮凝剂添加曲线;特殊材料滤袋相比于普通材料滤袋,滤袋的脱水综合能力大幅度提升,平均过滤速度达到0.479 m3/(m2·h),淤泥回收率为98.7%,泥饼含水率为71.6%;中试实验表明,淤泥经过4 h过滤后,淤泥的含水率降到较低的65%,最终回收率可达到98.6%,滤液中污染物浓度满足国家排放标准。与传统技术相比,本技术具有脱水周期短、成本低、操作简单、安全性强等优点。
    Abstract: Effects of flocculants addition and filter bag properties on the dewatering performance of the silt from Taihu Lake were investigated and pilot-scale tests were carried out. When the moisture content of silt was 90%, the most appropriate dosages of PAM and PAC were 55 and 1 000 mg/L, respectively. The specific resistance of silt reduced from 8.7×107 to 2.0×107 s2/g and Zeta potential shifted from-28.77 to-4.68 mV. Meanwhile, the average filtration velocity of filter bag was improved by 137.9% and dewatering ability of slit was also obviously improved. The optimum flocculant dosing curve was obtained by a series of dewatering tests by using silts with different moisture contents. The comprehensive dewatering ability of this special filter bag showed advantages over the ordinary filter bags with the average filtration rate of 0.479 m3/(m2·h), silt recovery rate of 98.7% and sludge cake moisture content of 71.6%. Furthermore, pilot-scale tests showed that the moisture content of silt could be declined to less than 65% after filtered for four hours. The silt recovery rate could reach 98.6% and the quantity of the effluent could meet the national discharging standards. Compared with traditional technologies, this new technology presented the advantages of easy operation, reliable performance, low cost and short-time operation period.
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  • [1] Mackie J. A., Natali S. M. Declining metal levels at foundry cove (Hudson River, New York): Response to localized dredging of contaminated sediments. Environmental Pollution, 2007, 149(2): 141-148
    [2] Wu Min, Sun Xueming, Huang Suiliang, et al. Laboratory analyses of nutrient release processes from haihe river sediment. International Journal of Sediment Research, 2012, 27(1): 61-72
    [3] 谢丹平, 李开明, 江栋, 等. 底泥修复对城市污染河道水体污染修复的影响研究. 环境工程学报, 2009, 3(8): 1447-1453 Xie Danping, Li Kaiming, Jiang Dong, et al. Study on effect of polluted sediments bioremediation on water body remediation of polluted urban rivers. Chinese Journal of Environmental Engineering, 2009, 3(8): 1447-1453 (in Chinese)
    [4] 刘国锋, 张志勇, 刘海琴, 等. 底泥疏浚对竺山湖底栖生物群落结构变化及水质影响. 环境科学, 2010, 31(11): 2645-2651 Liu Guofeng, Zhang Zhiyong, Liu Haiqing, et al. Effects of sediment dredging on benthos community structure and water quality in zhushan bay. Environmental Science, 2010, 31(11): 2645-2651 (in Chinese)
    [5] 胡保安. 环保疏浚泥浆脱水干化技术研究进展. 水资源与水工程学报, 2009, 20(4): 132-136 Hu Baoan. Research progress on the dewatering technologies for environmental dredge sediment. Journal of Water Resources and Water Engineering, 2009, 20(4): 132-136 (in Chinese)
    [6] 戴鼎立, 何圣兵, 陈雪初, 等. 湖库环保疏浚底泥的脱水干化技术研究进展. 净水技术, 2012, 31(1): 80-85 Dai Dingli, He Shengbing, Chen Xuechu, et al. Advances in research on dewatering and drying technology of sediment sludge from lakes and reserviors environmental dredging. Water Purification Technology, 2012, 31(1): 80-85 (in Chinese)
    [7] 李增强, 刘会娥, 陈爽. 助剂强化罐底油泥的压滤脱水性能. 环境工程, 2011, 29(5): 24-27 Li Zhenqiang, Liu Huie, Chen Shuang. Improvement on dewttering performance of oily sludge from oil tank through adding agents. Environmental Engineering, 2011, 29(5): 24-27 (in Chinese)
    [8] 王炜, 刘星. 城市污水处理厂污泥脱水药剂选型研究. 广州化工, 2011, 39(23): 119-121 Wang Wei, Liu Xing. The selection of sludge dewatering agent used in municipal wastewater treatment plant. GuangZhou Chemical Industry and Technology, 2011,39(23): 119-121 (in Chinese)
    [9] 廖克明, 钱望新. 河道污水污泥性能试验研究. 给水排水, 2009, 35(z2): 188-190 Liao Keming, Qian Wangxin. River sewage sludge performance test research. Water & Wastewater Engineering, 2009, 35(z2): 188-190 (in Chinese)
    [10] 王美莲, 田家宇, 潘志辉, 等. 活性污泥中的水分测定及其脱水性能. 哈尔滨商业大学学报(自然科学版), 2010, 26(3): 285-290 Wang Meilian, Tian Jiayu, Pan Zhihui, et al. Moisture distribution and dewaterability of activated sludge. Joumal of Harbin University of Commerce(Natural Sciences), 2010, 26(3): 285-290 (in Chinese)
    [11] Dominik D., Morten C. Gravity drainage of activated sludge: New experimental method and considerations of settling velocity, specific cake resistance and cake compressibility. Water Research, 2011, 45(5): 1941-1950
    [12] 赵培涛, 葛仕福, 黄瑛, 等. 压滤式过滤比阻测定方法. 东南大学学报(自然科学版), 2011, 41(1): 155-159 Zhao Peitao, Ge Shifu, Huang Ying, et al. Measurement of specific resistance to filtration of sludge by pressure filtration. Journal of Southeast University (Natural Science), 2011, 41(1): 155-159 (in Chinese)
    [13] Wakeman R. J. Separation technologies for sludge dewatering. Journal of Hazardous Materials, 2007, 144(3): 614-619
    [14] 王晓荣, 陈忠林, 王斌远, 等. 水中单宁酸对PAC混凝过程的影响. 中国给水排水, 2010, 26(21): 66-71 Wang Xiaorong, Chen Zhonglin, Wang Binyuan, et al. Effect of tannic acid on coagulation by polyaluminum chloride. China Water & Wastewater, 2010, 26(21): 66-71 (in Chinese)
    [15] 于晟显, 杨耀杰, 邬时清, 等. 阳离子高分子絮凝剂的合成与其表面电性的测定. 功能高分子学报, 2008, 21(3): 297-300 Yu Shengxian, Yang Yaojie, Wu Shiqing, et al. Synthesis of cationic polymer floeculant and its zeta potential. Journal of Functional Polymers, 2008, 21(3): 297-300 (in Chinese)
    [16] 林刚, 束一鸣, 吴海民. 小断面土工织物脱水试验方法初探. 水电能源科学, 2009, 27(5): 156-158 Lin Gang, Shu Yiming, Wu Haiming. Small section geotextiles dewatering test research. Water Resources and Power, 2009, 27(5): 156-158 (in Chinese)
    [17] 朱永爱, 刘国荣. 编织滤布自身性能对过滤的影响. 过滤与分离, 2009, 19(3): 34-37 Zhu Yongai, Liu Guorong. The influences of the woven filter cloth performances on the filtration. Journal of Filtration & Separation, 2009, 19(3): 34-37 (in Chinese)
    [18] 吕斌, 杨开, 杨小俊. 武汉某湖泊底泥的机械脱水性能研究. 中国给水排水, 2008, 24(3): 68-71 Lü Bing, Yang Kai, Yang Xiaojun. Study on mechanical dewatering performance of sediment from a lake in Wuhan. China Water & Wastewater, 2008, 24(3): 68-71 (in Chinese)
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  • 收稿日期:  2012-11-05
  • 刊出日期:  2013-11-21
王辰, 刘宏波, 符波, 祖叶品, 刘和. 连续在线滤袋式淤泥脱水技术[J]. 环境工程学报, 2013, 7(11): 4547-4552.
引用本文: 王辰, 刘宏波, 符波, 祖叶品, 刘和. 连续在线滤袋式淤泥脱水技术[J]. 环境工程学报, 2013, 7(11): 4547-4552.
shu
Wang Chen, Liu Hongbo, Fu Bo, Zu Yepin, Liu He. Continuous on-line operation for silt dewatering by filter bag[J]. Chinese Journal of Environmental Engineering, 2013, 7(11): 4547-4552.
Citation: Wang Chen, Liu Hongbo, Fu Bo, Zu Yepin, Liu He. Continuous on-line operation for silt dewatering by filter bag[J]. Chinese Journal of Environmental Engineering, 2013, 7(11): 4547-4552.
shu

连续在线滤袋式淤泥脱水技术

  • 1. 江南大学环境与土木工程学院环境生物技术研究室, 无锡 214122
  • 收稿日期:  2012-11-05
基金项目:

中央高校基本科研业务费专项资金(JUSRP11206)

江南大学环境与土木工程学院院长基金(yzjj1103)

教育部新世纪人才项目(NCET-10-0455)

摘要: 以太湖淤泥为研究对象,研究了絮凝剂和滤袋性质对淤泥脱水性能的影响,并进行了滤袋脱水中试研究。结果表明,淤泥的含水率为90%时,在PAM和PAC最佳添加量55 mg/L和1 000 mg/L条件下,淤泥比阻从8.7×107 s2/g降低到2.0×107 s2/g,Zeta电位从-28.77 mV变成-4.68 mV,滤袋平均过滤速度提高了137.9%,脱水性能显著提升。不同含水率下的实验得出了淤泥的最佳絮凝剂添加曲线;特殊材料滤袋相比于普通材料滤袋,滤袋的脱水综合能力大幅度提升,平均过滤速度达到0.479 m3/(m2·h),淤泥回收率为98.7%,泥饼含水率为71.6%;中试实验表明,淤泥经过4 h过滤后,淤泥的含水率降到较低的65%,最终回收率可达到98.6%,滤液中污染物浓度满足国家排放标准。与传统技术相比,本技术具有脱水周期短、成本低、操作简单、安全性强等优点。

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