| 木材加工废水处理工程实例分析 |
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| 引用本文： | 茅宏,金鑫,陈利,姚建松,梅荣武.木材加工废水处理工程实例分析[J].能源环境保护,2020,34(2):65-69. |
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| 作者姓名： | 茅宏 金鑫 陈利 姚建松 梅荣武 |
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| 作者单位： | 浙江省环境保护科学设计研究院,浙江杭州310007;浙江环科环境研究院有限公司,浙江杭州310007 |
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| 基金项目： | 浙江省省级重点研发计划项目(编号2020C03080)。 |
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| 摘 要： | 针对某木材加工企业生产废水高COD、高氨氮、高色度、含甲醛等特点,采用“芬顿氧化+A/O+沉淀+气浮”组合工艺对原废水处理厂进行扩容提标改造。该工程设计处理规模为600 t/d,总投资为340万元,直接运行成本为4.83元/t。运行效果表明:采用芬顿氧化预处理洗胶废水可有效降解甲醛等高毒性的有机物,增设载体的A/O工艺可提高COD去除效果与抗冲击负荷能力,组合工艺出水COD<400 mg/L,氨氮<20 mg/L,TN<40 mg/L,TP<2 mg/L,甲醛<2 mg/L。
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| 关 键 词： | 木材加工废水 芬顿氧化 生化处理 改造工程 |
Engineering practice of high concentration wood processing wastewater treatment |
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| MAO Hong,JIN Xin,CHEN Li,YAO Jiansong,MEI Rongwu.Engineering practice of high concentration wood processing wastewater treatment[J].Energy Environmental Protection,2020,34(2):65-69. |
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| Authors: | MAO Hong JIN Xin CHEN Li YAO Jiansong MEI Rongwu |
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| Institution: | (Environmental Science Research&Design Institute of Zhejiang Province,Hangzhou 310007,China;Zhejiang Environmental Science Research Institute Co.,Ltd.,Hangzhou 310007,China) |
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| Abstract: | According to the high COD Cr and NH+4-N concentrations,high chroma and formaldehyde in the wastewater produced by a wood processing plant,a combined process"Fenton oxidation-A/O-sedimentation-flotation"was adopted for the expansion and upgrading construction of this plant.The treatment scale,total investment and direct operating cost are 600 t/d,3.4 million yuan and 4.83 yuan/ton wastewater.The operation practice shows that strong toxic organics in glue washing wastewater such as formaldehyde is effectively degraded by fenton oxidation.The addition of carrier in A/O process can improve the COD removal efficiency and resistance to shock loads.The effluent quality is COD<400 mg/L,NH+4-N<20 mg/L,TN<40 mg/L,TP<2 mg/L and formaldehyde<2 mg/L. |
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| Keywords: | Wood processing wastewater Fenton oxidation Biochemical treatment Reconstruction project |
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