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[1]兰书焕 陈杨武 贺玉龙 陶 美 张若木 李 龙 马小亚 谭周亮**.光伏产业清洗剂废水低温生物处理[J].应用与环境生物学报,2016,22(03):388-392.[doi:10.3724/SP.J.1145.2015.10008]
 LAN Shuhuan,CHEN Yangwu,HE Yulong,et al.Low temperature biological treatment of photovoltaic industrial detergent wastewate*[J].Chinese Journal of Applied & Environmental Biology,2016,22(03):388-392.[doi:10.3724/SP.J.1145.2015.10008]
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光伏产业清洗剂废水低温生物处理()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
22卷
期数:
2016年03期
页码:
388-392
栏目:
研究论文
出版日期:
2016-06-25

文章信息/Info

Title:
Low temperature biological treatment of photovoltaic industrial detergent wastewate*
作者:
兰书焕12 陈杨武2 贺玉龙1 陶 美12 张若木2 李 龙2 马小亚2 谭周亮2**
1西南交通大学 成都 610031 2中国科学院成都生物研究所,中国科学院环境与应用微生物重点实验室 成都 610041
Author(s):
LAN Shuhuan12 CHEN Yangwu2 HE Yulong1 TAO Mei12 ZHANG Ruomu2 LI Long2 MA Xiaoya2 & TAN Zhouliang2**
1Southwest Jiaotong University, Chengdu 610031, China 2Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
关键词:
光伏产业清洗剂废水生物处理优化调控低温pHC/N
Keywords:
photovoltaic industry detergent agent wastewater biological treatment optimal regulation low temperature pH C/N
分类号:
X172
DOI:
10.3724/SP.J.1145.2015.10008
摘要:
光伏产业清洗剂废水冬季生物处理难稳定达标. 操作参数调控与工艺的优化组合对微生物活性的提高及清洗剂废水稳定达标处理的实现具有重要意义. 本研究通过实验室摇瓶试验以COD(Chemical Oxygen Demand)去除率、COD去除速率等为表征指标探究不同温度以及低温下pH、C/N (COD/NH4+-N)及处理工艺等对该废水生物处理效果的影响. 结果显示,10 ℃下清洗剂废水生物处理效果受到明显抑制,21.5 h时COD去除率仅为49.7%,较30 ℃下降31.0%;偏碱性条件更利于该废水的处理. pH 8条件下COD去除率较pH为5.5时提高57.2%;初始C/N在8:1到32:1之间更利于该废水的处理. 清洗剂废水在生物处理后期均出现降解停滞现象. 进一步比较不同工艺下清洗剂废水的低温(15 ℃)处理效果,在15 ℃、pH 7-8和C/N 16:1条件下,相比活性污泥法,接触氧化法可将COD去除率提高7.5%左右;而两段式接触氧化法可将第二段处理中的COD去除率提高16.6%左右,最终出水达到污水综合排放标准(GB 8978-1996)中的一级标准. 本研究通过两段式接触氧化实现了清洗剂废水的有效处理,但是该废水的降解动力学及两段式接触氧化体系中的微生物低温降解机理还有待进一步的研究和验证. (图4 表3 参19)
Abstract:
A large amount of detergent wastewater is produced by photovoltaic industry. Its biological treatment effect in winter is unsteady and hard to meet the discharge standard. This research aimed to offer suggestions in biodegrading detergent wastewater of photovoltaic industry by adjusting the relevant operation parameters and optimizing processes. We investigated in laboratory scale the effect of temperature on the detergent wastewater treatment, and the influence of pH, C/N and different treatment processes on the detergent wastewater treatment at low temperature. The chemical oxygen demand (COD) removal ratio and removal rate of the detergent wastewater was also monitored. The results showed that the biological degradation efficiency of detergent wastewater was poor at 10 °C, where the wastewater COD removal ratio was only 49.7% at 21.5 h, 31.0% less than that at 30 °C. The pH value >7 was more favorable for treating the wastewater, with the COD removal efficiency of pH 8 57.2% higher than that of pH 5.5. The initial C/N between 8:1 and 32:1 was beneficial to the detergent wastewater degradation. Stagnation phenomenon was found in the late stage of biological treatment. The optimization experiment showed that the contact oxidation method obtained an average of 7.5% higher COD removal efficiency than the activated sludge process. In addition, the two-stage contact oxidation process achieved 16.6% enhancement in COD removal efficiency in the second treatment unit. In conclusion, under the condition of 15 °C, pH 7–8, C/N 16:1, the two-stage contact oxidation process promoted the degradation of the detergent wastewater, with the final effluent meeting the primary standard of National Sewage Comprehensive Emission Standard” (GB 8978-1996 ). This research achieved effective treatment of detergent wastewater by the two-stage contact oxidation process, but further studies are needed to determine wastewater degradation kinetics and mechanism of microbial degradation in the two-stage contact oxidation system at low temperature.

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更新日期/Last Update: 2016-06-25