环境工程学报2026，Vol.20Issue(8)：2567-2576,10.DOI:10.12030/j.cjee.202601006
包埋固定化技术强化水解酸化-接触氧化工艺处理烟草废水
Treatment of tobacco wastewater by immobilization technology enhanced hydrolytic acidification-contact oxidation process
摘要
Abstract
To improve the efficiency and stability of the conventional hydrolytic acidification-contact oxidation process for treating highly toxic and refractory tobacco wastewater,in this study,a hydrolytic acidification-contact oxidation process system was constructed using immobilized fillers prepared via immobilization technology.The pollutant removal characteristics,microbial community succession,and organic matter metabolic pathways were systematically investigated under varying pH levels,influent loads,and hydrolysis/aeration time.The results demonstrated that the immobilized fillers exhibited a significant buffering capacity against shock loading.Under extreme influent conditions(pH=4.5～5.0 and COD 1 800～2 100 mg·L-1),the system maintained COD and ammonia nitrogen removal efficiencies of approximately 40%and 70%,respectively.Once the pH returned to neutral and the COD load decreased,microbial activity was fully recovered,leading to a rapid recovery in pollutant degradation efficiency.The primary function of the hydrolytic acidification stage was to transform macromolecule organic compounds and enhance the biodegradability of wastewater.Three-dimensional excitation-emission matrix(3D-EEM)analysis revealed that dissolved organic matter was mainly converted into readily degradable components,such as soluble microbial products,during this stage.However,aeration time was the decisive factor for the final COD removal efficiency;aeration for 8 h was more effective than aeration for 6-h in degrading organic compounds,achieving a final COD removal efficiency of(84.1±4.8)%.Furthermore,the immobilized fillers successfully enriched functional microbial communities dominated by Rhodococcus and Sphingopyxis.These taxa facilitated efficient organic decomposition and transformation by activating multiple metabolic pathways,including glycolysis,the pentose phosphate pathway,and various detoxification mechanisms for toxic substances.This study provided a novel technical approach and theoretical guidance for the treatment of tobacco wastewater.关键词
包埋固定化技术/烟草废水/水解酸化-接触氧化/有机物/代谢通路/运行工况Key words
immobilization technology/tobacco wastewater/hydrolytic acidification-contact oxidation/organic compounds/metabolic pathways/operating conditions分类
资源环境引用本文复制引用
王佳伟,魏超强,党志文,朱守芹..包埋固定化技术强化水解酸化-接触氧化工艺处理烟草废水[J].环境工程学报,2026,20(8):2567-2576,10.基金项目
河北省自然科学基金资助项目(C2025404001) （C2025404001）
