异植物醇高浓氨氮废水预处理工艺研究
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摘要
对异植物醇高浓氨氮废水进行预处理,提前降低其COD值及氨氮浓度。结果表明,曝气耦合铁碳微电解法中pH值调整到8时,对降低异植物醇高浓氨氮废水的COD值的效果最好;对于脱氮吹脱法,曝气30 min时达到较好除氨氮效果;对于120水样和130水样,可以选择不锈钢丝网作为填料进行除沫。
We pretreated isophytol wastewater with high concentration of ammonia-nitrogen,and reduced COD value and ammonia-nitrogen concentration in advance.The results show that the effect of reducing COD value of isophytol wastewater with high concentration of ammonia-nitrogen is the best when the pH value is adjusted to 8 in the aeration coupled iron-carbon microelectrolysis process.While the ammonia-nitrogen removal is more effective when the aeration time is 30 min in the denitrification and stripping process.Moreover,for the 120 and 130 water samples,the stainless steel wire mesh can be selected as a filler for defoaming.
We pretreated isophytol wastewater with high concentration of ammonia-nitrogen,and reduced COD value and ammonia-nitrogen concentration in advance.The results show that the effect of reducing COD value of isophytol wastewater with high concentration of ammonia-nitrogen is the best when the pH value is adjusted to 8 in the aeration coupled iron-carbon microelectrolysis process.While the ammonia-nitrogen removal is more effective when the aeration time is 30 min in the denitrification and stripping process.Moreover,for the 120 and 130 water samples,the stainless steel wire mesh can be selected as a filler for defoaming.
引文
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[2] 王宝贞,王琳.水污染治理新技术[M].北京:科学出版社,2004:107-121.
[3] 朱菁.高温脱氨吹脱法处理高浓度氨氮废水的工程实践[J].环境科学与管理,2009,34(1):107-123.ZHU J.Engineering practice on treatment of high concentration ammonia-nitrogen wastewater by high temperature nitrogen removal combined with air stripping method[J].Environmental Science and Management,2009,34(1):107-123.
[4] 孙业涛,郭瓦力,单译,等.吹脱法处理粉煤制气工艺高浓度氨氮废水[J].化学工业与工程,2010,27(6):486-489.SUN Y T,GUO W L,SHAN Y,et al.Treatment of high concentrated ammonia-nitrogen wastewater in coal gasification process by air stripping[J].Chemical Industry & Engineering,2010,27(6):486-489.
[5] 鲁剑,张勇,吴盟盟,等.电化学氧化法处理高氨氮废水的试验研究[J].安全与环境工程,2010,28(9):2009-2013.LU J,ZHANG Y,WU M M.Experimental study on the electrochemical oxidation of the wastewater with high ammonia nitrogen[J].Safety and Environmental Engineering,2010,28(9):2009-2013.
[6] 刘文龙,钱仁渊,包宗宏.吹脱法处理高浓度氨氮废水[J].南京工业大学学报,2003,29(4):244-246.LIU W L,QIAN R Y,BAO Z H.Treatment of high concentration ammonia-nitrogen wastewater by air stripping[J].Journal of Nanjing University of Technology (Natural Science Edition),2003,29(4):244-246.
[7] 何岩,赵由才,周恭明.高浓度氨氮废水脱氮技术研究进展[J].工业水处理,2008,28(1):1-4.HE Y,ZHAO Y C,ZHOU G M.Research process on the denitrogenation of highly concentrated ammonium-nitrogen wastewater[J].Industrial Water Treatment,2008,28(1):1-4.
[8] RUIZA G,JEISONB D,CHAMYA R.Nitrification with high nitrite accumulation for the treatment of wastewater with high ammonia concentration[J].Water Research,2003,37:1371-1377.
[9] 李亮,李燕,纪志国.短程硝化反硝化生物脱氮技术的研究进展[J].北方环境,2011,23(4):124-125,152.