UASB-A/O工艺处理3000 m~3/d印染废水工程实例
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摘要
介绍了某纺织厂废水处理工程,设计水量为3 000 m~3/d,该工程采用"浅层气浮-UASB(升流式厌氧污泥床厌氧反应器)-A/O好氧-物化处理"工艺,对UASB的COD去除情况及A/O系统运行效果进行了分析。在UASB反应器的温度保持30~35℃,有机负荷为0.5 kg/(m~3·d)时,当UASB进水COD质量浓度为1 500 mg/L左右,出水COD质量浓度在750 mg/L左右,COD去除率可达50%以上。A/O系统COD去除率为70%以上,经物化处理后的出水COD质量浓度小于200 mg/L,出水达到了GB 4287—2012《纺织染整工业水污染物排放标准》中表2的间接排放标准。
An introduction was made about the general situation of dyeing wastewater treatment project in some dyeing factory. The design scale was 3 000 m~3/d and the technology of shallow air floatation-UASB(upflow anaerobic sludge bed anaerobic reactor)-A/O aerobic-physicochemical treatment was applied. The COD removal efficiency of UASB reactor and the performance of A/O biochemical tank were described. When the temperature of UASB reactor was kept at 30 ~ 35 ℃,the organic loading was 0.5 kg/(m~3·d). When the influent concentration of UASB was about 1 500 mg/L, the effluent COD was about750 mg/L and the removal rate of COD could reach more than 50%. The COD removal rate of A/O system was over 70%, and the COD of effluent treated by physicochemical treatment was less than 200 mg/L. The effluent reaches the indirect discharge standard of table 2 in the Discharge Standard for Textile Dyeing and Finishing Industry(GB 4287—2012).
An introduction was made about the general situation of dyeing wastewater treatment project in some dyeing factory. The design scale was 3 000 m~3/d and the technology of shallow air floatation-UASB(upflow anaerobic sludge bed anaerobic reactor)-A/O aerobic-physicochemical treatment was applied. The COD removal efficiency of UASB reactor and the performance of A/O biochemical tank were described. When the temperature of UASB reactor was kept at 30 ~ 35 ℃,the organic loading was 0.5 kg/(m~3·d). When the influent concentration of UASB was about 1 500 mg/L, the effluent COD was about750 mg/L and the removal rate of COD could reach more than 50%. The COD removal rate of A/O system was over 70%, and the COD of effluent treated by physicochemical treatment was less than 200 mg/L. The effluent reaches the indirect discharge standard of table 2 in the Discharge Standard for Textile Dyeing and Finishing Industry(GB 4287—2012).
引文
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[5]唐嘉丽,吉世明,岳秀,等.印染废水混凝加药工艺优化实验研究[J].广东化工, 2015, 42(3):97-98.
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[14]KIM S Y,AN J Y,KIM B W,et al. The effects of reductant and carbon source on the microbial decolorization of azo dyes in an anaerobic sludge process[J]. Dyes and pigments, 2008, 76(1):256-263.
[15]ZEE F P V D, VILLAVERDE S. Combined anaerobic–aerobic treatment of azo dyes-a short review of bioreactor studies[J]. Water research, 2005, 39(8):1 425-1 440.
[16]徐富,缪恒锋,任洪艳,等.废水处理中厌氧污泥颗粒化研究进展[J].上海环境科学, 2013(2):47-51.
[17]徐富,缪恒锋,任洪艳,等.低浓度废水厌氧处理中不同动力学模型对比研究[J].中国环境科学, 2013, 33(12):2 184-2 190.
[18]刘锋,冯俊强,吴建华,等. 2 500 m3多级内循环(MIC)厌氧反应器在柠檬酸废水处理工程中的应用[J].江苏环境科技, 2006,19(6):27-29.
[19]陈曦.含CM,TMP及SMZ的化学合成制药废水研究[J].江苏环境科技, 2007, 20(4):1-3.
[20]戴日成,张统,郭茜,等.印染废水水质特征及处理技术综述[J].给水排水, 2000, 26(10):33-37.
[2]赵雪,何瑾馨,展义臻.印染废水处理技术的研究进展[J].化学工业与工程技术, 2009, 30(2):38-43.
[3]胡涛,汪玉祥,许干,等.印染废水的治理研究[J].环境科技,2005, 18(4):29-32.
[4]谢维,罗建中.曝气+硫酸亚铁铵/石灰水+厌氧水解工艺对高浓度印染废水预处理的改造研究[J].水处理技术, 2013, 39(9):124-128.
[5]唐嘉丽,吉世明,岳秀,等.印染废水混凝加药工艺优化实验研究[J].广东化工, 2015, 42(3):97-98.
[6]高冲,龚文娟.绍兴某小型印染企业废水处理工程调试[J].山东化工, 2016, 45(10):128-130.
[7]吕锡武,王九芹,宋海亮.石墨极板电氧化法处理靛蓝染料废水初步研究[J].江苏环境科技, 2004, 17(3):1-2.
[8]王娟,范迪. FeSO4对A-O工艺处理印染废水效果的影响[J].工业水处理, 2010, 30(1):22-25.
[9]彭振华,徐灏龙.新型脱色絮凝剂在印染废水处理中的应用研究[J].中国给水排水, 2015(5):83-86.
[10]赵宜江,张艳,嵇鸣,等.印染废水吸附脱色技术的研究进展[J].水处理技术, 2000, 26(6):315-319.
[11]张建英,梁缘东,陈曙光,等.染色废水吸附混凝效应研究[J].环境污染与防治, 1998(3):9-12.
[12]GEORGIOUD,HATIRASJ,AIVASIDISA.Microbial immobilization in a two-stage fixed-bed-reactor pilot plant for onsite anaerobic decolorization of textile wastewater[J]. Enzyme and microbial technology, 2005, 37(6):597-605.
[13]BRáSR., GOMES A, FERRA M I A, et al. Monoazo and diazo dye decolourisation studies in a methanogenic UASB reactor[J].Journal of biotechnology, 2005, 115(1):57-66.
[14]KIM S Y,AN J Y,KIM B W,et al. The effects of reductant and carbon source on the microbial decolorization of azo dyes in an anaerobic sludge process[J]. Dyes and pigments, 2008, 76(1):256-263.
[15]ZEE F P V D, VILLAVERDE S. Combined anaerobic–aerobic treatment of azo dyes-a short review of bioreactor studies[J]. Water research, 2005, 39(8):1 425-1 440.
[16]徐富,缪恒锋,任洪艳,等.废水处理中厌氧污泥颗粒化研究进展[J].上海环境科学, 2013(2):47-51.
[17]徐富,缪恒锋,任洪艳,等.低浓度废水厌氧处理中不同动力学模型对比研究[J].中国环境科学, 2013, 33(12):2 184-2 190.
[18]刘锋,冯俊强,吴建华,等. 2 500 m3多级内循环(MIC)厌氧反应器在柠檬酸废水处理工程中的应用[J].江苏环境科技, 2006,19(6):27-29.
[19]陈曦.含CM,TMP及SMZ的化学合成制药废水研究[J].江苏环境科技, 2007, 20(4):1-3.
[20]戴日成,张统,郭茜,等.印染废水水质特征及处理技术综述[J].给水排水, 2000, 26(10):33-37.