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基于硫酸根自由基(SO4-·)的污泥预处理技术

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徐文迪, 常沙, 明铁山, 傅金祥, 黄殿男, 郜玉楠. 基于硫酸根自由基(SO4-·)的污泥预处理技术[J]. 环境工程学报, 2018, 12(5): 1528-1535. doi: 10.12030/j.cjee.201709069
引用本文: 徐文迪, 常沙, 明铁山, 傅金祥, 黄殿男, 郜玉楠. 基于硫酸根自由基(SO4-·)的污泥预处理技术[J]. 环境工程学报, 2018, 12(5): 1528-1535. doi: 10.12030/j.cjee.201709069
shu
XU Wendi, CHANG Sha, MING Tieshan, FU Jinxiang, HUANG Diannan, GAO Yunan. Pretreatment technology of sewage of sludge with sulfate radical (SO4-·)[J]. Chinese Journal of Environmental Engineering, 2018, 12(5): 1528-1535. doi: 10.12030/j.cjee.201709069
Citation: XU Wendi, CHANG Sha, MING Tieshan, FU Jinxiang, HUANG Diannan, GAO Yunan. Pretreatment technology of sewage of sludge with sulfate radical (SO4-·)[J]. Chinese Journal of Environmental Engineering, 2018, 12(5): 1528-1535. doi: 10.12030/j.cjee.201709069
shu

基于硫酸根自由基(SO4-·)的污泥预处理技术

  • 1.

    沈阳建筑大学市政与环境工程学院, 沈阳 110168

  • 2.

    沈阳新大陆建筑设计有限公司, 沈阳 110179

  • 基金项目:

    国家水体污染控制与治理科技重大专项（2015ZX07202-012，2014ZX07202-011）

    国家自然科学基金资助项目（51508342）

    沈阳建筑大学博士后基金资助项目（SYZJBSH201720）

Pretreatment technology of sewage of sludge with sulfate radical (SO4-·)

  • 1.

    School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China

  • 2.

    Shenyang New-World Architecture Design Co.Ltd., Shenyang 110179, China

  • Fund Project:

  • 摘要: 应用基于硫酸根自由基（SO4-·）的污泥预处理技术对抚顺某市政污水处理厂浓缩池剩余污泥进行预处理，强化污泥的过滤脱水性能。研究了最佳的氧化反应时间、S2O82-与Fe2+的最佳投加浓度与投加方式；并探讨了SO4-·对污泥特性的影响。结果表明，当S2O82-投加浓度为80 mg·g-1（以干物质计），Fe2+和S2O82-的摩尔比为1:1，Fe2+按时间比10 min:20 min分2段投加时，在反应时间30 min内，污泥的过滤脱水性能达到最佳。此外，Fe2+活化S2O82-产生的SO4-·是强化污泥脱水的关键。同时，影响污泥脱水性能的胞外聚合物（extracellular polymeric substances，EPS）浓度和组成在氧化反应前后发生变化，污泥的脱水和过滤性能得到提高。
    Abstract: An advanced oxidation technology with sulfate radical (SO4-·) was used to improve sludge dewatering performance and enhance dewatering efficiency of the sewage slurry (a sewage treatment plant, Fushun, China). The effects of the processing time, the dosages of S2O82- and Fe2+, as well as the dosing mode of Fe2+ on slurry dewatering ability were studied. The results showed that the sludge dewatering abilities could be improved in the 30 min under suitable conditions. The optimal conditions were as following, S2O82- of 80 mg·g-1 (based on dry sludge solid), mole ratio of Fe2+ to S2O82- was 1:1, and two sectional (10 min:20min) dosing of Fe2+. In addition, radical quenching tests confirmed that a large amount of SO4-· radicals exist and SO4-· radicals were the key for sludge dewatering. At the same time, the destructive effect of SO4-· radicals on floc structure was mainly reflected in the changes of the content and distribution of extracellular polymeric substance (EPS). The dewatering and filtrating of sewage sludge is improved by the Fe2+/S2O82- system.
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  • [1] JIN B, WILEN B M, LANT P.Impacts of morphological, physical and chemical properties of sludge flocs on dewaterability of activated sludge[J].Chemical Engineering Journal,2003,98(1):115-126 10.1016/j.cej.2003.05.002
    [2] 穆丹琳, 徐慧, 肖峰, 等. 污泥调理对给水污泥脱水性能的影响[J]. 环境工程学报,2016,10(10):5447-5452 10.12030/j.cjee.201505138
    [3] SINNER S J, STUDER L J, DIXON D R, et al.Quantification of wastewater sludge dewatering[J].Water Reserch,2015,82:2-13 10.1016/j.watres.2015.04.045
    [4] MO R S, HUANG S S, DAI W C, et al.A rapid Fenton treatment technique for sewage sludge dewatering[J].Chemical Engineering Journal,2015,269:391-398 10.1016/j.cej.2015.02.001
    [5] ZHANG A, LI Y.Removal of phenolic endocrine disrupting compounds from waste activated sludge using UV, H2O2, and UV/H2O2 oxidation processes: Effects of reaction conditions and sludge matrix[J].Science of Total Environnment,2014,493:307-323 10.1016/j.scitotenv.2014.05.149
    [6] 宋秀兰, 石杰, 吴丽亚. 过硫酸盐氧化法对污泥脱水性能的影响[J]. 环境工程学报,2015,9(11):5585-5590
    [7] 赵进英. 零价铁-过硫酸钠体系产生硫酸根自由基氧化降解氯酚的研究[D]. 大连:大连理工大学,2010
    [8] 时亚飞. 活化过硫酸盐-骨架构建体复合调理污泥深度脱水研究[D]. 武汉:华中科技大学,2014
    [9] 刘雅莉, 刘菲, 黄伟英. 菱铁矿催化过氧化氢-过硫酸钠修复地下水中TCE时对微生物的影响[J]. 地学前沿,2014,21(4):186-190 10.13745/j.esf.2014.04.020
    [10] 吴昊, 孙丽娜, 王辉, 等. 活化过硫酸钠原位修复石油类污染土壤研究进展[J]. 环境化学,2015,34(11):2085-2095 10.7524/j.issn.0254-6108.2015.11.2015052601
    [11] 王宇轩, 王应军, 方明珠. 活性炭负载CuO催化过硫酸盐去除活性艳红X-3B染料[J]. 环境工程学报, 2016,10(1):230-236
    [12] BAI M, ZHANG Z, ZHANG N, et al.Treatment of 250t/h ballast water in oceanic ships using ·OH radicals based on strong electric-field discharge[J].Plasma Chemistry and Plasma Processing,2012,32(4):693-702 10.1007/s11090-012-9369-9
    [13] XU Q, WANG H J, WANG Y.Characterization of the structure and interaction of sludge biosolids during the conditioning–electro-dewatering process[J].Colloids and Surfaces A: Physicochemcal and Engineering Aspects,2015,484:108-117 10.1016/j.colsurfa.2015.07.056
    [14] 林宁波. 微波联合过硫酸钠协同调理改善污泥脱水性能研究[D]. 长沙:湖南大学,2014
    [15] 徐鑫, 濮文虹, 时亚非, 等. 活化过硫酸盐对市政污泥调理效果的影响[J]. 环境科学,2015,36(11):4202-4207
    [16] 徐鑫. 过硫酸盐与烷基糖苷用于污泥调理及脱水机理研究[D]. 武汉: 华中科技大学,2013
    [17] 唐建军, 范小江, 邹原, 等. 自由基抑制剂对不同晶型TiO2光催化反应的影响[J]. 北京化工大学学报（自然科学版）,2009,36(3):36-40
    [18] ELISABETH N, JAN B Y, RAF D, et al.Advanced sludge treatment affects extracellular polymeric substances to improve activated sludge dewatering[J].Journal of Hazardous Materials,2004,106(2/3):83-92 10.1016/j.jhazmat.2003.11.014
    [19] CHEN Z, ZHANG W J, WANG D S, et al.Enhancement of activated sludge dewatering performance by combined composite enzymatic lysis and chemical re-flocculatio with inorganic coagulants: Kinetics of enzymatic reaction and reflocculation morphology[J].Water Research,2015,83:367-376 10.1016/j.watres.2015.06.026
    [20] MARIA R H, ESTHER C, JORDI L, et al.Ultrasound, thermal and alkali treatments affect extracellular polymeric substances (EPSs) and improve waste activated sludge dewatering[J].Process Biochemistry,2015,50(3):438-446 10.1016/j.cej.2014.06.036
    [21] WANG A M, LI Y Y, RU J.The mechanism and application of the electro-Fenton process for azo dye acid red 14 degradation using an activated carbon fibre felt cathode[J].Journal of Chemical Technology and Biotechnology,2010,85(11):1463-1470 10.1002/jctb.2450
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  • 刊出日期:  2018-05-19
徐文迪, 常沙, 明铁山, 傅金祥, 黄殿男, 郜玉楠. 基于硫酸根自由基(SO4-·)的污泥预处理技术[J]. 环境工程学报, 2018, 12(5): 1528-1535. doi: 10.12030/j.cjee.201709069
引用本文: 徐文迪, 常沙, 明铁山, 傅金祥, 黄殿男, 郜玉楠. 基于硫酸根自由基(SO4-·)的污泥预处理技术[J]. 环境工程学报, 2018, 12(5): 1528-1535. doi: 10.12030/j.cjee.201709069
shu
XU Wendi, CHANG Sha, MING Tieshan, FU Jinxiang, HUANG Diannan, GAO Yunan. Pretreatment technology of sewage of sludge with sulfate radical (SO4-·)[J]. Chinese Journal of Environmental Engineering, 2018, 12(5): 1528-1535. doi: 10.12030/j.cjee.201709069
Citation: XU Wendi, CHANG Sha, MING Tieshan, FU Jinxiang, HUANG Diannan, GAO Yunan. Pretreatment technology of sewage of sludge with sulfate radical (SO4-·)[J]. Chinese Journal of Environmental Engineering, 2018, 12(5): 1528-1535. doi: 10.12030/j.cjee.201709069
shu

基于硫酸根自由基(SO4-·)的污泥预处理技术

  • 1. 沈阳建筑大学市政与环境工程学院, 沈阳 110168
  • 2. 沈阳新大陆建筑设计有限公司, 沈阳 110179
基金项目:

国家水体污染控制与治理科技重大专项（2015ZX07202-012，2014ZX07202-011）

国家自然科学基金资助项目（51508342）

沈阳建筑大学博士后基金资助项目（SYZJBSH201720）

摘要: 应用基于硫酸根自由基（SO4-·）的污泥预处理技术对抚顺某市政污水处理厂浓缩池剩余污泥进行预处理，强化污泥的过滤脱水性能。研究了最佳的氧化反应时间、S2O82-与Fe2+的最佳投加浓度与投加方式；并探讨了SO4-·对污泥特性的影响。结果表明，当S2O82-投加浓度为80 mg·g-1（以干物质计），Fe2+和S2O82-的摩尔比为1:1，Fe2+按时间比10 min:20 min分2段投加时，在反应时间30 min内，污泥的过滤脱水性能达到最佳。此外，Fe2+活化S2O82-产生的SO4-·是强化污泥脱水的关键。同时，影响污泥脱水性能的胞外聚合物（extracellular polymeric substances，EPS）浓度和组成在氧化反应前后发生变化，污泥的脱水和过滤性能得到提高。

English Abstract

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