| 厌氧UASB－好氧工艺处理染料废水的研究 |
| 摘要点击 918 全文点击 1659 修订日期：1993-10-30 |
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| 中文关键词 染料废水 UASB反应器 活性污泥法 |
| 英文关键词 dye-stuff wastewater UASB reactor activated sludge process COD removal decolouration |
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| 中文摘要 |
| 报道厌氧-好氧工艺处理染料废水的试验结果。厌氧段采用UASB反应器,好氧段采用普通活性污泥法。试验结果表明,进水COD1150-1300mg/L、色度500倍的染料废水,在厌氧段停留6-10h,可获得60%以上的COD去除率,色度降到50-100倍。后续曝气6h,总COD去除率可达85%-90%,色度降至20倍左右。进出水的光谱分析揭示,染料废水的脱色主要发生在厌氧段。并且通过生物降解作用来实现。从这些结果得出,UASB-好氧工艺是处理染料废水的一种经济有效的方法。 |
| 英文摘要 |
| The results were reported from a study on the treatment of dye-stuff wastewater by using an anaerobic/aerobic process,wherein the anaerobic stage was carried out in a UASB reactor and the aerobic sarge was using a conventional activated sludge process.The results show that with a raw dye-stuff wastewater of 1150-1300 mg COD/L and 500 fold colourity(a colour scale meant by the number of dilution times leading to a colour that seems to be the colour of tap water) under the condition of HRT 6-10h at the anaerobic stage,the COD removal was more than 60% and the colourity was reduced to 50-100 folds.If followed by an additional 6h aeration treatment,the total COD removal was up to 85%-90% and the colourity was further reduced to about 20 folds. The spectrometric analyses of influent and effluent revealed that the decolouration of dye-stuff wastewater mainly took place at the anaerobic stage and was achieved through bilogical degradation.It was concluded that the anaerobic/aerobic process was a cost-eff ective way to treat a dye-stuff wastewater and was of a great value of practical application. |
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