| 催化氧化深度处理高浓化机浆废水及工程设计 |
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| 引用本文： | 盘爱享,施英乔,丁来保,李四辉,房桂干.催化氧化深度处理高浓化机浆废水及工程设计[J].林产化学与工业,2012,32(3):38-42. |
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| 作者姓名： | 盘爱享 施英乔 丁来保 李四辉 房桂干 |
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| 作者单位： | 1. 中国林业科学研究院 林产化学工业研究所; 生物质化学利用国家工程实验室; 国家林业局 林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室 江苏 南京 210042;;2. 中国林业科学研究院 林业新技术研究所 北京 100091 |
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| 基金项目： | 中国林科院林业新技术所基本科研业务费专项资金(CAFINT2009K01) |
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| 摘 要： | 监测的某化机浆厂每吨浆废水发生量在24～55 m3/t之间变动,高浓化机浆废水经过了沉淀—厌氧—好氧生物处理后,化学需氧量(COD)降至500 mg/L左右,去除了废水中90%的污染负荷。对好氧出水进行了催化氧化试验,探讨了主要处理因素对COD去除率的影响,结果表明:最佳工艺条件pH值为3,H2O2和FeSO4.7H2O用量分别为2和3 mmol/L,COD去除率为86.1%,用空气作催化剂在1.2 L/L用量下可使废水COD去除率再提高5.6个百分点,达90%以上。在工程上,曝气可引自好氧处理的风机房,节省了工程投资。在工厂现场完成放大试验后,设计建造了催化氧化工程,工程运行表明:COD在500 mg/L的好氧出水经过氧化处理后排放水COD降至54 mg/L,生化需氧量(BOD)降至17 mg/L,悬浮固形物(SS)降至32 mg/L,色度降至30倍,完全满足新国家排放标准(GB 3544-2008)。
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| 关 键 词： | 催化氧化 深度处理 化机浆废水 |
Advanced Treatment of Chem-machanical Pulping Wastewater with Catalytic Oxidation and Engineering Design |
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| PAN Ai-xiang,SHI Ying-qiao,DING Lai-bao,LI Si-hui,FANG Gui-gan.Advanced Treatment of Chem-machanical Pulping Wastewater with Catalytic Oxidation and Engineering Design[J].Chemistry & Industry of Forest Products,2012,32(3):38-42. |
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| Authors: | PAN Ai-xiang SHI Ying-qiao DING Lai-bao LI Si-hui FANG Gui-gan |
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| Institution: | 1(1.Institute of Chemical Industry of Forest Products,CFA;National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.of Forest Chemical Engineering,SFA;Key Lab.of Biomass Energy and Material,Jiangsu Province, Nanjing 210042,China;2.Research Institute of New Technology of Forestry,CAF,Beijing 100091,China) |
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| Abstract: | The effluent from a chem-mechanical pulp mill,with discharge varying from 24 to 55 m3/t o.d.pulp,was treated by sedimentation-anaerobic-aerobic stages.COD was reduced down to 500 mg/L,and 90% pollutants were removed.Then the effluent was treated by catalytic oxidation as raw wastewater.During the process,different pH values and usages of H2 O2、FeSO4 · 7H2 O were used to investigate and evaluate COD removal of the wastewater.The result indicated that the optimum conditions were H2 O2 2 mmol/L and FeSO4 · 7H2 O 3 mmol/L at pH value 3.Under this condition COD removal is 86.1 %.COD removal could reach 90 % which was 5.6% higher that the previous treatment,when air was used as catalyst and its rate was 1.2 L/L.In engineering,the air could be got from ventilator room conveniently with low cost.The pilot test was carried out on site.The running results showed: after catalytic oxidation,the effluent COD drops to 54 mg/L,BOD is down to 17 mg/L,SS is reduced to 32 mg/L,and chromaticity decreased to 30 times.The performance could meet the new discharge standard(GB3544-2008). |
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| Keywords: | catalytic oxidation advanced treatment chem-machanical pulping wastewater |
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