桉木化学机械浆废水好氧生物抑制特性分析及降解规律研究  

Analysis of Aerobic Biological Inhibition Characteristics and Degradation Law of Eucalyptus Chemical Mechanical Pulp Wastewater

作　　者：丁来保[1] 田庆文[1] 杨然 朱津苇 郭奇 房桂干[1] DING Laibao;TIAN Qingwen;YANG Ran;ZHU Jinwei;GUO Qi;FANG Guigan(Institute of Chemical Industry of Forest Products,CAF,Key Lab.of Biomass Energy and Material,Jiangsu Province,Key Lab.of Chemical Engineering of Forest Products,National Forestry and Grassland Administration,National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass,Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources,Nanjing 210042,China)

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、国家林业和草原局林产化学工程重点实验室、林木生物质低碳高效利用国家工程研究中心、江苏省林业资源高效加工利用协同创新中心,江苏南京210042

出　　处：《林产化学与工业》2024年第1期33-40,共8页Chemistry and Industry of Forest Products

基　　金：江苏省生物质能源与材料重点实验室重点项目(JSBEM-S-202207)。

摘　　要：采用GC-MS方法分析了桉木化学机械浆废水厌氧处理和好氧处理出水的有机物成分及含量,统计了好氧处理前后废水中碳原子数的分析情况,分析了废水中主要的生物难降解组分及降解规律。研究结果表明:经厌氧和好氧处理后残余的主要有机污染物为芳樟醇(C10,21.21%)、对叔丁基苯乙酸甲酯(C13,21.39%)、二氢月桂烯醇(C10,8.90%)、铃兰醛(C14,6.16%)和香茅醇(C10,4.76%)等,主要为含苯环有机物和抑菌成分,具有生物难降解性和抑菌性,宏观表现为生物处理去除率较低。好氧处理前后,废水中醇类物质质量分数从19.32%上升至51.71%,醛类物质质量分数从3.68%上升至13.35%,酯类物质质量分数从29.75%降至28.32%,含苯环有机物质量分数从32.70%上升至61.06%,说明其他有机物获得比含苯环有机物更大幅度的降解。建议通过解毒预处理和生物强化提高微生物活性等途径改善生物处理效果,减轻后续深度处理的难度,降低综合处理成本,实现低成本达标排放。In this paper,the composition and content of organic matter in the effluent of anaerobic treatment and aerobic treatment of eucalyptus chemical mechanical pulp wastewater were analyzed by GC-MS method.The analysis of number of carbon atoms in the wastewater before and after aerobic treatment was counted,and the main bio-refractory components and degradation rules in the wastewater were analyzed.The results showed that the main residual organic pollutants after anaerobic and aerobic treatment were linalool(C10,21.21%),methyl p-tert-butyl phenylacetate(C13,21.39%),dihydromyrcenol(C10,8.90%),lilial(C14,6.16%) and citronellol(C10,4.76%),etc,mainly containing benzene ring organic matter and bacteriostatic components,with biological refractory degradation and bacteriostatic properties.The macroscopic performance was that the removal rate of biological treatment was low.Before and after aerobic treatment,the mass fraction of alcohols in wastewater increased from 19.32% to 51.71%,the mass fraction of aldehydes increased from 3.68% to 13.35%,the mass fraction of esters decreased from 29.75% to 28.32%,and the mass fraction of benzene-containing organics increased from 32.70% to 61.06%,indicating that other organics were degraded more greatly than benzene-containing organics.It was recommended to improve the biological treatment effect by detoxification pretreatment and bioaugmentation to improve microbial activity,reduce the difficulty of subsequent deep treatment,reduce the cost of comprehensive treatment,and achieve low-cost discharge.

关 键 词：桉木化机浆废水 生物处理 生物抑制 降解规律 脱毒解毒 

分 类 号：TQ35[化学工程]