CAJ | 학술논문

采用间歇式摇床试验,研究了葡萄糖共基质条件下Fe0-厌氧微生物体系中Fe0投加量、pH值、染料初始浓度对活性艳红X-3B模拟废水脱色率的影响,比较了Fe0-厌氧微生物、纯厌氧微生物及纯Fe03种体系中废水的脱色效果.结果表明:Fe0-厌氧微生物体系中初始浓度(50～500 mg/L)对活性艳红X-3B的脱色率影响不大;而Fe0投加量、pH值存在一个最佳范围;当Fe0投加量为260 mg/L,pH值为6.0,污泥浓度为0.35 g VSS/L,停留时间约为30 h时,体系中活性艳红X-3B的脱色率可达90%左右,比相同试验条件下纯Fe0、纯厌氧微生物体系达到此脱色率所需时间分别缩短了约1/2、7/10.在Fe0-厌氧微生物体系中,由紫外可见分光光度分析可推测活性艳红X-3B的脱色机理主要是其偶氮键发生断裂,生成苯胺和萘类物质,而且苯胺和萘类物质能得到进一步降解.
채용간헐식요상시험,연구료포도당공기질조건하Fe0-염양미생물체계중Fe0투가량、pH치、염료초시농도대활성염홍X-3B모의폐수탈색솔적영향,비교료Fe0-염양미생물、순염양미생물급순Fe03충체계중폐수적탈색효과.결과표명:Fe0-염양미생물체계중초시농도(50～500 mg/L)대활성염홍X-3B적탈색솔영향불대;이Fe0투가량、pH치존재일개최가범위;당Fe0투가량위260 mg/L,pH치위6.0,오니농도위0.35 g VSS/L,정류시간약위30 h시,체계중활성염홍X-3B적탈색솔가체90%좌우,비상동시험조건하순Fe0、순염양미생물체계체도차탈색솔소수시간분별축단료약1/2、7/10.재Fe0-염양미생물체계중,유자외가견분광광도분석가추측활성염홍X-3B적탈색궤리주요시기우담건발생단렬,생성분알화내류물질,이차분알화내류물질능득도진일보강해.
The influences of the Fe0 dose,initial pH,initial concentration on the treatment of the reactive brilliant red X-3B(X-3B)simulated wastewater were studied in the Fe0-anaerobic system,using batch shake flasks experiments.During the experiments.the glucose and X-3B were used as co-substrates.The decoloration effct in the Fe0-anaerobic system was compared with that in the anaerobic or Fe0 systems.The result shows that when the initial X-3B concentration was 50～500 mg/L,there was little effect on the decoloration rate in the Fe0-anaerobic system.But the Fe0 dose and initial pH value existed an optimum value respectively in tIle system.When the Fe0 dose,initial pH value,sludge concentration and the hydraulic retention time(HRT)were 260 mg/L,6.0,0.35 g VSS/L and about 30 h respectively,the X-3B decoloration rate could reach about 90% in this system.Compared with the Fe0 or anaerobic systems.the decoloration time in the Fe0-anaerobic system was decreased by 1/2 and 7/10 respectively under the same experimental conditions.According to the analysis of UV spectrophotometer,the decoloration mechanism of X-3B was presumed probably that the X-3B changed to these substances such as phenylamine and naphthalenes through the breaking of azo bond in Fe0-anaerobic system.Moreover,these substances were further degraded in this system.