电絮凝法处理煤气化灰水的研究
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摘要
采用铝极板电絮凝法处理煤气化灰水废水,结果表明电絮凝法对煤气化废水的悬浮物表现出良好的去除效果。文中考察了静置时间﹑反应时间﹑电流强度﹑极板间距等因素的影响,研究表明静置10 min,反应时间6 min,电流强度20 A,极板间距10 mm条件下处理效果最好,在最佳工艺条件下处理后浊度为27.7 NTU,悬浮物去除率达到89.5%,电耗1.10 kW/m~3。电絮凝作为一种环境友好型技术,能耗较低,自动化程度高的污水处理法,具有较强的推广应用价值。
Coal gasification wastewater has been treated by electro coagulation technique using aluminum electrode. The experimental results show that the electrocoagulation has a good removal effect on the suspended solids of coal gasification wastewater. The influences of the factors on the removal efficiency were investigated, such as standing-time, electro coagulation time, current intensity and polar plate distance. According to the study results, the removal efficiency isthe best with the standing-time of 10 min, electrolysis time of 6 min, current intensity of 20 A, plate distance of 10 mm. Under this optimal electro coagulation conditions the turbidity value of wastewater is 27.7 NTU, suspended solids removing rate is 89.5%, electricity consumption is 1.10 kW/m~3. Electro flocculation is an environmental-friendly technology and has value of popularization and application by its low energy consumption and high level of automation.
Coal gasification wastewater has been treated by electro coagulation technique using aluminum electrode. The experimental results show that the electrocoagulation has a good removal effect on the suspended solids of coal gasification wastewater. The influences of the factors on the removal efficiency were investigated, such as standing-time, electro coagulation time, current intensity and polar plate distance. According to the study results, the removal efficiency isthe best with the standing-time of 10 min, electrolysis time of 6 min, current intensity of 20 A, plate distance of 10 mm. Under this optimal electro coagulation conditions the turbidity value of wastewater is 27.7 NTU, suspended solids removing rate is 89.5%, electricity consumption is 1.10 kW/m~3. Electro flocculation is an environmental-friendly technology and has value of popularization and application by its low energy consumption and high level of automation.
引文
[1] 高聚忠.煤气化技术的应用与发展[J].洁净煤技术,2013,19(1):65-71.
[2] 吴限.煤化工废水处理技术面临的问题与技术优化研究[D].哈尔滨:哈尔滨工业大学,2016.
[3] 田亚峻.中国煤化工现状与发展思考——写在十三五之前[J].煤化工,2014,42(6):1-8.
[4] 张石磊,江旭佳,洪国良,等.电絮凝技术在水处理中的应用[J].工业水处理, 2013, 33 (1):10-14.
[5] 张条兰,刁润丽,方秀苇.电絮凝法处理电镀废水的研究进展[J].电镀与精饰,2016,38(3):33-37.
[6] 李爽,邱春生,孙力平,等.铝板电絮凝法去除重金属离子Cd2+和Ni2+[J].环境工程学报, 2016,10(6): 2855-2861.
[7] 虞少嵚,熊道文,陈湘斌,等.周期换向电絮凝法用于处理含铬废水研究[J].中国环境科学, 2014,34(1): 118-122.
[8] 刘艳.铝钛电极电絮凝法处理造纸废水工艺及机理的研究[D].西安:陕西科技大学,2015.
[9] 张俊,杨敬一,徐心茹,等.电絮凝技术处理油田含油污水的研究[J].现代化工,2013, 33(1):52-56.
[10] 林辉.脉冲电絮凝法处理餐饮废水的研究[J].武汉大学学报:理学版,2003, 49(6): 720-724.
[11] 张国辉,杨鸿鹰,冯党卫.电絮凝法处理乳胶漆废水[J].涂料工业,2017,47(12):48-52.
[12] 程宇婕,冯启言,李向东.电絮凝微滤技术应用于给水处理的实验研究[J].能源环境保护,2008,22(4):28-31.
[13] 王车礼,张登庆,陈毅忠,等.电絮凝过程电流密度与电压关系研究[J].工业水处理, 2002,22(7):28-30.
[2] 吴限.煤化工废水处理技术面临的问题与技术优化研究[D].哈尔滨:哈尔滨工业大学,2016.
[3] 田亚峻.中国煤化工现状与发展思考——写在十三五之前[J].煤化工,2014,42(6):1-8.
[4] 张石磊,江旭佳,洪国良,等.电絮凝技术在水处理中的应用[J].工业水处理, 2013, 33 (1):10-14.
[5] 张条兰,刁润丽,方秀苇.电絮凝法处理电镀废水的研究进展[J].电镀与精饰,2016,38(3):33-37.
[6] 李爽,邱春生,孙力平,等.铝板电絮凝法去除重金属离子Cd2+和Ni2+[J].环境工程学报, 2016,10(6): 2855-2861.
[7] 虞少嵚,熊道文,陈湘斌,等.周期换向电絮凝法用于处理含铬废水研究[J].中国环境科学, 2014,34(1): 118-122.
[8] 刘艳.铝钛电极电絮凝法处理造纸废水工艺及机理的研究[D].西安:陕西科技大学,2015.
[9] 张俊,杨敬一,徐心茹,等.电絮凝技术处理油田含油污水的研究[J].现代化工,2013, 33(1):52-56.
[10] 林辉.脉冲电絮凝法处理餐饮废水的研究[J].武汉大学学报:理学版,2003, 49(6): 720-724.
[11] 张国辉,杨鸿鹰,冯党卫.电絮凝法处理乳胶漆废水[J].涂料工业,2017,47(12):48-52.
[12] 程宇婕,冯启言,李向东.电絮凝微滤技术应用于给水处理的实验研究[J].能源环境保护,2008,22(4):28-31.
[13] 王车礼,张登庆,陈毅忠,等.电絮凝过程电流密度与电压关系研究[J].工业水处理, 2002,22(7):28-30.