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剩余污泥强化混凝气浮预处理煤气化废水

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李达, 张崇剑, 马文成, 韩洪军, 陈志强. 剩余污泥强化混凝气浮预处理煤气化废水[J]. 环境化学, 2018, 37(12): 2585-2595. doi: 10.7524/j.issn.0254-6108.2018050801
引用本文: 李达, 张崇剑, 马文成, 韩洪军, 陈志强. 剩余污泥强化混凝气浮预处理煤气化废水[J]. 环境化学, 2018, 37(12): 2585-2595. doi: 10.7524/j.issn.0254-6108.2018050801
shu
LI Da, ZHANG Chongjian, MA Wencheng, HAN Hongjun, CHEN Zhiqiang. Pretreatment of coal gasification wastewater by excess sludge enhanced coagulation-flotation[J]. Environmental Chemistry, 2018, 37(12): 2585-2595. doi: 10.7524/j.issn.0254-6108.2018050801
Citation: LI Da, ZHANG Chongjian, MA Wencheng, HAN Hongjun, CHEN Zhiqiang. Pretreatment of coal gasification wastewater by excess sludge enhanced coagulation-flotation[J]. Environmental Chemistry, 2018, 37(12): 2585-2595. doi: 10.7524/j.issn.0254-6108.2018050801
shu

剩余污泥强化混凝气浮预处理煤气化废水

  • 1.

    哈尔滨工业大学环境学院, 城市水资源与水环境国家重点实验室, 哈尔滨, 150090;

  • 2.

    中国市政工程中南设计研究总院有限公司, 武汉, 430000

  • 基金项目:

    国家重点研发计划（2016YFB0600502）和黑龙江省级别资助项目（GX17C003）资助.

Pretreatment of coal gasification wastewater by excess sludge enhanced coagulation-flotation

  • 1.

    State Key Laboratory of Urban Water Resource and Environment(SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, China;

  • 2.

    Central & Southern China Municipal Engineering Design and rResearch General Institute, Wuhan, 430000, China

  • Fund Project: Supported by National Key Research and Development Program-China(2016YFB0600502)and Heilongjiang Province-Level Funded Project(GX17C003).

  • 摘要: 为解决低浑浊度煤气化含油废水混凝气浮药剂投加量大、效率低的问题，本文开展混凝剂污泥共投加提高气浮工艺除污染能力的研究.研究表明，剩余污泥的投加明显改善了混凝沉淀对油类污染物的去除，在剩余污泥投加量从0增加到1200 mg·L-1时，含油量去除率由28.1%提升至44.1%.聚合氯化铝（PAC）、聚丙烯酰胺（PAM）和剩余污泥的最适宜投加量分别为150、2、1200 mg·L-1.A/O工艺二沉池剩余污泥强化混凝气浮效果最佳，充分气浮反应后对含油量的去除率由46%提升至84%，且气浮池油水分离区微气泡的稳定性得到明显改善.
    Abstract: To solve the problems of high dosfage and low efficiency of the coagulation-flotation process in treating low turbidity gasification oily wastewater, coagulant and excess sludge were added together to improve the removal capability of air floatation process in this paper. Results showed that the addition of excess sludge significantly improved the removal of oil pollutants by coagulation precipitation. When the amount of excess sludge was increased from 0 to 1200 mg·L-1, the removal rate of oil content was increased from 28.1% to 44.1%.The optimal dosages of polyaluminum chloride (PAC), polyacrylamide (PAM) and excess sludge were 150, 2 and 1200 mg·L-1, respectively. Excess sludge from the secondary sedimentation tank of A/O process achieved the best performance, and the removal rate of the oil increased from 46% to 84% after sufficient airflow reaction time. And the stability of the microbubbles in the oil-water separation zone of the flotation tank was improved significantly.
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  • [1] GAI H J, JIANG Y B, QIAN Y, et al. Conceptual design and retrofitting of the coal-gasification wastewater treatment process[J]. Chemical Engineering Journal, 2008, 138(1-3):84-94.
    [2] JIA S Y, HAN H J, ZHUANG H F, et al. Advanced treatment of biologically pretreated coal gasification wastewater by a novel integration of catalytic ultrasound oxidation and membrane bioreactor[J]. Bioresource Technology, 2015,189:426-429.
    [3] ZHUANG H F, HAN H J, JIA S Y, et al. Advanced Treatment of biologically pretreated coal gasification wastewater using a novel anoxic moving bed biofilm reactor (ANMBBR)-biological aerated filter (BAF) system[J]. Bioresource Technology, 2014,157:223-230.
    [4] JI Q H, TABASSUM S, HENA S, et al. A review on the coal gasification wastewater treatment technologies:Past, present and future outlook[J]. Journal of Cleaner Production, 2016,126:38-55.
    [5] JIA S Y, ZHUANG H F, HAN H J, et al. Application of industrial ecology in water utilization of coal chemical industry:A case study in Erdos, China[J]. Journal of Cleaner Production, 2016,135:20-29.
    [6] 张一能,唐秀华,邹平,等.我国焦化废水的水质特点及其处理方法[J]. 净水技术,2005,24(2):42-47.

    ZHANG Y N, TANG X H, ZOU P, et al. Characteristics and treatment methods of coal coking wastewater[J]. Water Purification Technology, 2005, 24(2):42-47(in Chinese).

    [7] SATHTHASIVAM J, LOGANATHAN K, SARP S. An overview of oil-water separation using gas flotation systems[J]. Chemosphere, 2016, 144:671-680.
    [8] LIM M W, LAU E V, POH P E. Micro-macrobubbles interactions and its application in flotation technology for the recovery of high density oil from contaminated sands[J]. Journal of Petroleum Science and Engineering, 2018, 161:29-37.
    [9] ETCHEPARE R, OLIVEIRA H, AZEVEDO A, et al. Separation of emulsified crude oil in saline water by dissolved air flotation with micro and nanobubbles[J]. Separation and Purification Technology, 2017, 186:326-332.
    [10] ZHU H, HAN Y X, XU C Y, et al. Overview of the state of the art of processes and technical bottlenecks for coal gasification wastewater treatment[J]. Science of the Total Environment, 2018, 637-638:1108-1126.
    [11] ZHAO Q, LIU Y. State of the art of biological processes for coal gasification wastewater treatment[J]. Biotechnology Advances, 2016, 34(5):1064-1072.
    [12] 苏兆阳,李星,杨艳玲. 强化混凝技术在水处理中的研究进展[J]. 水处理技术, 2016,42(2):11-14.

    SU Z Y, LI X, YANG Y L. Research progress on the enhanced flocculation in water treatment[J]. Technology of Water Treatment, 2016, 42(2):11-14(in Chinese).

    [13] 盛雅琼,朱佳,张可方,等. 回流比对污泥回流强化混凝工艺的影响[J]. 供水技术,2014,8(6):46-49.

    SHENG Y Q, ZHU J, ZHANG K F, et al. Effect of return ratio on sludge return enhanced coagulation process[J]. Water Technology, 2014, 8(6):46-49(in Chinese).

    [14] ZHOU Z W, YANG Y L, LI X, et al. Optimized removal of natural organic matter by ultrasound-assisted coagulation of recycling drinking water treatment sludge[J]. Ultrasonics Sonochemistry, 2018, 48:171-180.
    [15] 李丹阳. 基于氮气气浮除油与改善煤化工废水生化处理效能研究[D]. 哈尔滨:哈尔滨工业大学,2013. LI D Y. Research on improvement of treatment effectiveness of coal chemical wastewater based on nitrogen degreasing[D]. Harbin:Harbin Institute of Technology, 2013(in Chinese).
    [16] 张霖霖,周勇强,谢浩东,等. 紫外分光光度法直接测定废水中微量油的研究[J]. 光谱学与光谱分析,2001,21(5):716-718.

    ZHANG L L, ZHOU Y Q, XIE H D, et al. Study of direct determining animal and plant oil in sewage by ultraviolet spectrophotometry method[J]. Spectroscopy and Spectral Analysis, 2001, 21(5):716-718(in Chinese).

    [17] 庞艳华,丁永生,公维民. 紫外分光光度法测定水中油含量[J]. 大连海事大学学报,2002,28(4):68-71.

    PANG Y H, DING Y S, GONG W M. Study of measurement of oil-in-water using UV spectrum[J]. Journal of Dalian Maritime University, 2002, 28(4):68-71(in Chinese).

    [18] LIN R C, CHENG J, ZHANG J B, et al. Boosting biomethane yield and production rate with graphene:The potential of direct interspecies electron transfer in anaerobic digestion[J]. Bioresource Technology, 2017, 239:345-352.
    [19] SUN F, SUN W L, SUN H M, et al. Biosorption behavior and mechanism of beryllium from aqueous solution by aerobic granule[J]. Chemical Engineering Journal, 2011, 172(2-3):783-791.
    [20] 代腾跃. 活性污泥对污水中有机物的吸附降解特性实验研究[D]. 济南:山东建筑大学,2017. DAI T Y. Experimental study on adsorption and degradation characteristics of activated sludge in organic wastewater[D]. Jinan:Shandong Jianzhu University, 2017(in Chinese).
    [21] ZHANG Z, JING R, HE S, et al. Coagulation of low temperature and low turbidity water:Adjusting basicity of polyaluminum chloride (PAC) and using chitosan as coagulant aid[J]. Separation and Purification Technology, 2018, 206:131-139.
    [22] RIJK S E D, DER G J H J, BLANKEN J G D. Bubble size in flotation thickening[J]. Water Research, 1994, 28(2):465-473.
    [23] COUTO H J B, NUNES D G, NEUMANN R, et al. Micro-bubble size distribution measurements by laser diffraction technique[J]. Minerals Engineering, 2009, 22(4):330-335.
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  • 收稿日期:  2018-05-08
  • 刊出日期:  2018-12-15
李达, 张崇剑, 马文成, 韩洪军, 陈志强. 剩余污泥强化混凝气浮预处理煤气化废水[J]. 环境化学, 2018, 37(12): 2585-2595. doi: 10.7524/j.issn.0254-6108.2018050801
引用本文: 李达, 张崇剑, 马文成, 韩洪军, 陈志强. 剩余污泥强化混凝气浮预处理煤气化废水[J]. 环境化学, 2018, 37(12): 2585-2595. doi: 10.7524/j.issn.0254-6108.2018050801
shu
LI Da, ZHANG Chongjian, MA Wencheng, HAN Hongjun, CHEN Zhiqiang. Pretreatment of coal gasification wastewater by excess sludge enhanced coagulation-flotation[J]. Environmental Chemistry, 2018, 37(12): 2585-2595. doi: 10.7524/j.issn.0254-6108.2018050801
Citation: LI Da, ZHANG Chongjian, MA Wencheng, HAN Hongjun, CHEN Zhiqiang. Pretreatment of coal gasification wastewater by excess sludge enhanced coagulation-flotation[J]. Environmental Chemistry, 2018, 37(12): 2585-2595. doi: 10.7524/j.issn.0254-6108.2018050801
shu

剩余污泥强化混凝气浮预处理煤气化废水

  • 1.  哈尔滨工业大学环境学院, 城市水资源与水环境国家重点实验室, 哈尔滨, 150090;
  • 2.  中国市政工程中南设计研究总院有限公司, 武汉, 430000
  • 收稿日期:  2018-05-08
基金项目:

国家重点研发计划（2016YFB0600502）和黑龙江省级别资助项目（GX17C003）资助.

摘要: 为解决低浑浊度煤气化含油废水混凝气浮药剂投加量大、效率低的问题，本文开展混凝剂污泥共投加提高气浮工艺除污染能力的研究.研究表明，剩余污泥的投加明显改善了混凝沉淀对油类污染物的去除，在剩余污泥投加量从0增加到1200 mg·L-1时，含油量去除率由28.1%提升至44.1%.聚合氯化铝（PAC）、聚丙烯酰胺（PAM）和剩余污泥的最适宜投加量分别为150、2、1200 mg·L-1.A/O工艺二沉池剩余污泥强化混凝气浮效果最佳，充分气浮反应后对含油量的去除率由46%提升至84%，且气浮池油水分离区微气泡的稳定性得到明显改善.

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