煤泥水处理新技术及发展趋势
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摘要
现有煤泥水澄清处理技术不能完全满足选煤厂洗水闭路循环的要求,对于高泥化难沉降煤泥水问题尤为突出。为满足新时期对绿色选煤技术以及煤炭清洁生产与利用的要求,煤泥水澄清处理亟需新的技术突破。综述了近期国内外有关煤泥水处理技术方面的研究进展,并结合传统煤泥水处理方法,对电场辅助技术、磁处理技术以及生物絮凝法等新型煤泥水处理方法的工作原理、处理效果及其优缺点进行了对比分析,最后对煤泥水处理的技术发展方向进行了展望。
The existing slime water clarification technology can hardly meet the requirements of wash water closed-circuit circulation in the coal preparation plant. This problem is especially serious in treating extremely sliming coal slime water. Therefore, new technology breakthroughs in coal slime water treatment are desiderated to implement to meet the requirements of cleaner production of coal in new period. In this paper, recent technology progresses of slime water treatment at home and abroad were reviewed. The working mechanisms, treatment effects, and advantages and disadvantages of three new slime water clarification procedures, including electric field assisted clarification, magnetic treatment, and biological flocculation, were compared and analyzed. Finally, the possible direction of slime water treatment technology is discussed.
The existing slime water clarification technology can hardly meet the requirements of wash water closed-circuit circulation in the coal preparation plant. This problem is especially serious in treating extremely sliming coal slime water. Therefore, new technology breakthroughs in coal slime water treatment are desiderated to implement to meet the requirements of cleaner production of coal in new period. In this paper, recent technology progresses of slime water treatment at home and abroad were reviewed. The working mechanisms, treatment effects, and advantages and disadvantages of three new slime water clarification procedures, including electric field assisted clarification, magnetic treatment, and biological flocculation, were compared and analyzed. Finally, the possible direction of slime water treatment technology is discussed.
引文
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[29]王利平,何又庆,范洪波,等.磁絮凝分离法处理含油废水的试验[J].环境工程,2007,25(3):12-15.
[30]李建军,朱金波,李蒙蒙,等.磁性絮凝剂的原位共沉淀合成及其在煤泥水处理中的应用[J].北京工业大学学报,2014,40(11):1712-1716.
[31]王晓云.磁性物质及磁分离技术在环境工程中的应用[J].科学技术与工程,2008(23):6307-6310.
[32]Zhang M,Xiao F,Xu X Z,et al.Novel ferromagnetic nanoparticle composited PACls and their coagulation characteristics[J].Water Research,2012,46(1):127-135.
[33]李建军,朱金波,刘银,等.一种利用粉煤灰磁珠与聚丙烯酰胺复合制备磁性絮凝剂的方法:中国,201410531262.0[P].2015-01-14.
[34]周桂英,张强,曲景奎.利用微生物絮凝剂处理煤泥水的试验研究[J].能源环境保护,2005,18(5):36-38.
[35]吴学凤,张东晨,姜绍通.酱油曲霉絮凝煤泥水的试验研究[J].煤炭学报,2007,32(4):433-436.
[36]梁峙,韩宝平.生物絮凝剂处理高浓度细粒煤泥水的优化条件研究[J].金属矿山,2010(6):153-159.
[37]靳慧霞,马放,孟路,等.复合型微生物絮凝剂与化学絮凝剂的复配及其应用[J].化工进展,2006,25(1):105-109.
[2]闵凡飞,张明旭,朱金波.高泥化煤泥水沉降特性及凝聚剂作用机理研究[J].矿冶工程,2011,31(4):55-58.
[3]朱书全,降林华,邹立.微细粒煤泥水用絮凝剂的合成与应用[J].中国矿业大学学报,2009,38(4):534-539.
[4]迟宝林.絮凝剂在煤泥水处理中的应用[J].价值工程,2011,30(3):266-266.
[5]张志军,刘炯天,冯莉,等.基于DLVO理论的煤泥水体系的临界硬度计算[J].中国矿业大学学报,2014,1:018.
[6]冯莉,刘炯天,张明青,等.煤泥水沉降特性的影响因素分析[J].中国矿业大学学报,2010(5):671-675.
[7]赵晴.煤泥水中矿物颗粒表面荷电特性及机理研究[D].淮南:安徽理工大学,2012.
[8]崔广文,刘惠杰,朱付显,等.不同性质煤泥水的絮凝沉降试验研究[J].选煤技术,2009(4):28-30.
[9]董宪姝,姚素玲,刘爱荣,等.电化学处理煤泥水沉降特性的研究[J].中国矿业大学学报,2010(5):753-757.
[10]Sabah E,Erkan Z E.Interaction mechanism of flocculants with coal waste slurry[J].Fuel,2006,85(3):350-359.
[11]刘宝臣,肖明贵,赵艳林,等.铝土矿泥电泳沉降试验研究[J].中国矿业,2008,17(2):98-101.
[12]杜慧玲,王建中,齐锦刚,等.脉冲电场对海水中悬浮颗粒物沉降效率的影响[J].天津大学学报,2007(11):1305-1308.
[13]Ofir E,Oren Y,Adin A.Comparing pretreatment by iron of electro-flocculation and chemical flocculation[J].Desalination,2007,204(1):87-93.
[14]董宪姝,姚素玲,张凌云.电化学絮凝的应用与发展[J].选煤技术,2008(4):132-135.
[15]刘令云,闵凡飞,张明旭,等.不同密度级原煤的泥化特性[J].煤炭学报,2012,37(S1):182-186.
[16]陈军,闵凡飞,刘令云.一种煤泥水疏水聚团沉降澄清的方法:中国,201410522968[P].2015-01-07.
[17]田禹,王强,李捍东,等.电化学降解焦化废水的研究[J].能源环境保护,2005,19(2):34-36.
[18]王丽敏,李佳丽,李秋荣.电絮凝法去除工业废水中的F-实验分析[J].大庆石油学院学报,2005,29(3):36-38.
[19]陈波,程治良,全学军,等.电絮凝法预处理垃圾焚烧发电厂渗滤液及其过程优化[J].化工进展,2011(S1):902-908.
[20]董宪姝,姚素玲,候基贵.一种电解法沉降净化煤泥水的方法:中国,200910073654.6[P].2009.
[21]李建军,朱金波,张丽亭,刘银.磁选技术在水污染治理中的应用[J].水处理技术,2012,38(7):9-13.
[22]陈瑜,李军,陈旭娈,等.磁絮凝强化污水处理的试验研究[J].中国给水排水,2011,27(17):78-81.
[23]黄启荣,霍槐槐.磁絮凝与磁分离技术的应用现状与前景[J].给水排水,2010,36(7):150-152.
[24]Ellis E P,Cathcart A H,Selection.Installation startup and testing of the world's first full-scale Comag phosphorus reduction tertiary treatment system[J].Proceedings of the Water Environment Federation,2008(13):3602-3621.
[25]Ritu D,Ambashta.Water purification using magnetic assistance:A review[J].Journal of Hazardous Materials,2010(180):38-49.
[26]Wang Shikai.Magnetic flocculant for high efficiency harvesting of microalgal cells[J].ACS Applied Materials&Interfaces,2014(6):109-115.
[27]曾慧峰.垃圾渗滤液的加载磁絮凝预处理工艺研究[J].环境工程学报,2011(10):2303-2306.
[28]Li Y,Wang J,Zhao Y,et al.Research on magnetic seeding flocculation for arsenic removal by superconducting magnetic separation[J].Separation and Purification Technology,2010,73(2):264-270.
[29]王利平,何又庆,范洪波,等.磁絮凝分离法处理含油废水的试验[J].环境工程,2007,25(3):12-15.
[30]李建军,朱金波,李蒙蒙,等.磁性絮凝剂的原位共沉淀合成及其在煤泥水处理中的应用[J].北京工业大学学报,2014,40(11):1712-1716.
[31]王晓云.磁性物质及磁分离技术在环境工程中的应用[J].科学技术与工程,2008(23):6307-6310.
[32]Zhang M,Xiao F,Xu X Z,et al.Novel ferromagnetic nanoparticle composited PACls and their coagulation characteristics[J].Water Research,2012,46(1):127-135.
[33]李建军,朱金波,刘银,等.一种利用粉煤灰磁珠与聚丙烯酰胺复合制备磁性絮凝剂的方法:中国,201410531262.0[P].2015-01-14.
[34]周桂英,张强,曲景奎.利用微生物絮凝剂处理煤泥水的试验研究[J].能源环境保护,2005,18(5):36-38.
[35]吴学凤,张东晨,姜绍通.酱油曲霉絮凝煤泥水的试验研究[J].煤炭学报,2007,32(4):433-436.
[36]梁峙,韩宝平.生物絮凝剂处理高浓度细粒煤泥水的优化条件研究[J].金属矿山,2010(6):153-159.
[37]靳慧霞,马放,孟路,等.复合型微生物絮凝剂与化学絮凝剂的复配及其应用[J].化工进展,2006,25(1):105-109.