A/O工艺处理家具喷漆废水的研究
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摘要
采用A/O工艺,即UASB-生物接触氧化联合工艺来处理家具喷漆废水,通过测定反应器进出水CODcr浓度及pH值来确定反应器的最佳运行条件。试验结果表明:(1)UASB反应器保持水力停留时间为32h时,在进水CODcr浓度范围为2800~3300mg/L,容积负荷在1.98~2.2kg COD/m~3·d范围内,进水pH范围在7.4~8之间的条件下,UASB反应器的CODcr去除率达到70%以上,此时出水CODcr浓度为1000mg/L左右。(2)生物接触氧化反应器的一级和二级反应池的水力停留时间均保持8h不变,在进水CODcr浓度在800~1500mg/L范围,容积负荷在0.88~1.67kg CODcr/m3·d范围,进水pH值范围在6.7~7.3之间的条件下,反应器的去除率可达到70%左右,此时出水CODcr浓度为400mg/L左右。
The A/O process,UASB-biological contact oxidation process to deal with the furniture paint wastewater,through the determination of the reactor effluent CODcrconcentration and pH value to determine the best operating conditions of the reactor.The test results showed that:( 1) the UASB reactor hydraulic retention time is 32 h,the influent CODcrconcentration range of2800 ~ 3300mg/L,volume load in 1. 98 ~ 2. 2 kg CODcr/m3·d range,the influent pH is in the range of 7. 4 ~ 8 under the condition of the UASB reactor CODcrremoval rate reached more than 70%,and the effluent CODcrconcentration was about1000mg/L.( 2) hydraulic grade one and two reactor biological contact oxidation reactor residence time were unchanged at 8h,the influent CODcrconcentration in the range of 800 ~ 1500mg/L,volume load in 0. 88 ~ 1. 67 kg CODcr/m3·d range,the influent pH value is in the range of 6. 7 ~ 7. 3 under the condition of the reactor the removal rate can reach about 70%,this time the effluent CODcrconcentration is about 400mg/L.
The A/O process,UASB-biological contact oxidation process to deal with the furniture paint wastewater,through the determination of the reactor effluent CODcrconcentration and pH value to determine the best operating conditions of the reactor.The test results showed that:( 1) the UASB reactor hydraulic retention time is 32 h,the influent CODcrconcentration range of2800 ~ 3300mg/L,volume load in 1. 98 ~ 2. 2 kg CODcr/m3·d range,the influent pH is in the range of 7. 4 ~ 8 under the condition of the UASB reactor CODcrremoval rate reached more than 70%,and the effluent CODcrconcentration was about1000mg/L.( 2) hydraulic grade one and two reactor biological contact oxidation reactor residence time were unchanged at 8h,the influent CODcrconcentration in the range of 800 ~ 1500mg/L,volume load in 0. 88 ~ 1. 67 kg CODcr/m3·d range,the influent pH value is in the range of 6. 7 ~ 7. 3 under the condition of the reactor the removal rate can reach about 70%,this time the effluent CODcrconcentration is about 400mg/L.
引文
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[2]陈建武,战景明.家具制造企业喷漆毒物危害防护[J].现代职业安全,2016(3):102-105.
[3]郦青.芬顿氧化+SBR工艺处理家具喷漆废水的实例[J].能源环境保护,2016,30(6):7-9.
[4]张仁英.暴露于有机溶剂的危害评价[J].丝网印刷,2011(8):6-8.
[5]杨胜州,颜伟文,姚永玲.家具企业喷涂过程呼吸防护技术应用研究[J].中国安全生产科学技术,2013(12):127-132.
[6]宋蒙亚,李忠佩,刘明,等.不同有机物料组合对土壤养分和生化性状的影响[J].中国农业科学,2013,46(17):3594-3603.
[7]Li X,Zhang Y,Zhao X.The characteristics of sludge from enhanced coagulation processes using PAC/PDMDAACcomposite coagulants in treatment of micro-polluted raw water[J].Separation&Purification Technology,2015,147:125-131.
[8]Yang Z,Gao B,Wang Y.Relationship between residual Al species,floc operational parameters and coagulation performance during reservoir water treatment by PAC-PDMDAAC[J].Separation&Purification Technology,2013,102(102):147-156.
[9]范远,陈金思.三氯化铁改性膨润土对铬(VI)的吸附性能研究[J].山东化工,2010,39(8):8-11.
[10]姜盖汕,崔宏,金成文,等.物化+水解/好氧+水解好氧法处理涂装废水[J].现代涂料与涂装,2013(3):43-47.
[11]孙雪景,王静,焦岩,等.微生物共代谢作用的研究与应用[J].农业与技术,2010,04:57-60.
[12]Kurt U,Avsar Y,GM Talha.Treatability of water-based paint wastewater with Fenton process in different reactor type[J].Chemosphere,2006,64(9):1536-1540.
[13]He Z,Li J,Chen J,et al.Treatment of organic waste gas in paint plant by combined technique of biotrickling filtration with photocatalytic oxidation[J].Chemical Engineerin Journal,2012,200-202(34):645-653.
[14]高珊.UASB-生物接触氧化法处理精细化工废水设计及运行[D].大连:大连理工大学,2015.
[15]谢雄华.UASB-生物接触氧化-混凝沉淀工艺处理焦化废水试验研究[D].西安:长安大学,2010.
[16]Es Peeee R.工业废水的厌氧生物技术[M].北京:中国建筑工业出版社,2001:50.