竹材两段挤压浸渍化学机械法制浆废水污染特性比较  

Comparison of Pollution Characteristics of Different Bamboo Chemi⁃mechanical Pulp Wastewater Using Two Stage Impregnation Pulping Process

作　　者：盘爱享[1] 房桂干[1] 田庆文[1,2] 刘行健 尹航 杨强[1] 韩善明 PAN Aixiang;FANG Guigan;TIAN Qingwen;LIU Xingjian;YIN Hang;YANG Qiang;HAN Shanming(Institute of Chemical Industry of Forest Products CFA,Key Lab of Biomass Energy and Material,Co-Innovation Center of Efficient Process-ing and Utilization of Forest Resources,Nanjing,Jiangsu Province,210042;Guangxi Key Lab of Clean Pulp&Papermaking and Pollution Control,College of Light Industry and Food Engineering,Guangxi University,Nanning,Guangxi Zhuang Autonomous Region,530004)

机构地区：[1]中国林业科学研究院林产化学工业研究所,江苏省生物质能源与材料重点实验室,江苏省林业资源高效加工利用协同创新中心,江苏南京210042 [2]广西清洁化制浆造纸与污染控制重点实验室,广西大学轻工与食品工程学院,广西南宁530004

出　　处：《中国造纸》2023年第3期6-12,共7页China Pulp & Paper

基　　金：广西清洁化制浆造纸与污染控制重点实验室开放基金资助(项目编号2021KF13)。

摘　　要：本文探讨了不同化学浸渍NaOH总用量下,慈竹和毛竹的化学机械法制浆性能;研究并比较了废水和COD_(Cr)产生量,探讨了废水的pH值、COD污染负荷、BOD5、总氮、总磷等关键参数对生化处理的影响;测定了废水固形物的灰分及灰分中主要金属离子的含量,分析了用碱量与制浆得率及废水污染负荷的关系,探讨了废水总有机碳与COD污染负荷的相关性。结果表明,相同浸渍用碱量下,慈竹化机浆强度性能明显高于毛竹化机浆。2种化机浆综合废水产生量6.20~7.73 m^(3)/t,pH值均大于8.5,COD_(Cr)产生量178.88~410.44 kg/t,用碱量与制浆得率和废水COD_(Cr)污染负荷相关,废水总有机碳与COD_(Cr)相关。In this paper,the chemi-mechanical pulping properties of Neosinocalamus affinis and moso bamboo with different chemical impregna-tion alkali amounts were discussed.The amount of wastewater and COD_(Cr)pollution load were compared and studied.The effects of key parameters such as pH value,COD_(Cr),BOD5,total nitrogen(TN),and total phosphorus(TP)on biochemical treatment were discussed.The ash content of wastewater solids and the contents of main metal ions in ash were measured.The relationship between alkali consumption and pulping yield and wastewater COD_(Cr)pollution load was analyzed,and the correlation between wastewater total organic carbon(TOC)and COD_(Cr)was studied.The re-sults showed that the strength properties of Neosinocalamus affinis chemi-mechanical pulp were significantly higher than that of moso bamboo che-mi-mechanical pulp with the same impregnation alkali amount.The amount of comprehensive wastewater from the two chemi-mechanical pulps was 6.20~7.73 m^(3)/t,the pH values were both above 8.5,and the COD_(Cr)pollution load was 178.88~410.44 kg/t.The total alkali consumption amount was related to the pulp yield and wastewater COD_(Cr)pollution load,TOC of wastewater was correlated with COD_(Cr).

关 键 词：竹材 化机浆废水 污染特性 制浆得率 总有机碳 

分 类 号：X703[环境科学与工程—环境工程]