化机浆废水稀释方式对生化处理效果的影响研究  

Study on the Effect of Dilution Pretreatment of CMP Wastewater on Biochemical Treatment Effect

作　　者：刘熹 杨崎峰 梁传顺 李坤 曾东梅 Liu Xi;Yang Qifeng;Liang Chuanshun;Li Kun;Zeng Dongmei(Guangxi Key Laboratory of Environmental Pollution Control and Ecological Restoration Technology,Nanning,Guangxi 530007,China;Guangxi Bossco Environmental Protection Technology Co.,Ltd.,Nanning,Guangxi 530000,China;Guangxi Bohuan Environmental Consulting Service Co.,Ltd.,Nanning,Guangxi 530000,China)

机构地区：[1]广西环境污染治理与生态修复技术重点实验室,南宁530007 [2]广西博世科环保科技股份有限公司,南宁530000 [3]广西博环环境咨询服务有限公司,南宁530000

出　　处：《中华纸业》2023年第14期4-7,共4页China Pulp & Paper Industry

基　　金：国家重点研发计划项目“生物造纸技术及产业示范”课题5:“造纸废水零排放关键技术及产业示范”(项目编号:2022Y F C2105505);广西八桂学者专项(N o.2019A33)广西科技基地和人才专项,项目名称:广西环保技术装备科技成果转化中试研究基地建设(项目编号:桂科AD23023006)。

摘　　要：通过搭建厌氧-好氧生化反应装置,研究了白水和清水两种不同水源稀释桉木化机浆废水预处理方法对废水生化处理效果的影响。结果显示,在较低的进水负荷下(9 kg COD/m^(3)),两种预处理方法厌氧段的去除率相近,约60%,好氧段白水实验组去除率可达50%,清水实验组去除率在40%以下;在较高进水负荷下(15 kgCOD/m^(3)),白水实验组厌氧段去除率可达60%,而清水实验组厌氧去除率仅52%,好氧段白水实验组去除率与低负荷时相近,但是清水实验组去除率进一步降低至30%。废水可生化性测试结果显示,清水稀释化机浆废水并不能提升化机浆废水中可生化有机污染物的比例,导致了生化反应后出水水质不如白水稀释的效果好。In this paper,the effects of pretreatment methods of eucalyptus chemi-mechanical pulping(CMP)wastewater diluted with white water and clear water on biochemical treatment were studied by building an anaerobic-aerobic biochemical reaction device.The results showed that under low inf luent load(9 kgCOD/m3),the removal rate of the anaerobic section of the two pretreatment methods was similar,both reaching about 60%.The removal rate of the aerobic section of the white water could reach 50%,and the removal rate of the clean water was below 40%.Under high influent load(15 kgCOD/m3),the anaerobic removal rate of the white water can reach 60%,while the anaerobic removal rate of the clean water is only 52%.The removal rate of the aerobic white water experimental group is similar to that of the low load,but the removal rate of the clean water is further reduced to 30%.The results of wastewater biodegradability test showed that the dilution of CMP wastewater with clear water could not increase the proportion of biodegradability organic pollutants in wastewater,which was not as good as that of white water dilution.

关 键 词：化机浆废水 稀释预处理 白水 清水 生化处理 

分 类 号：X793[环境科学与工程—环境工程] TS743.2[轻工技术与工程—制浆造纸工程]