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高浓度甲醇废水的两段厌氧消化
Two-step Anaerobic Treatment of High Concentration Methanol Wastewater
【摘要】 采用两段厌氧消化工艺对高浓度甲醇废水进行处理可提高系统的处理效果 ,增强系统运行稳定性和抗冲击负荷能力 ,减少甲醇直接生成乙酸所造成的系统酸化的危险。生产性试验表明 ,一体化两段厌氧反应器正常运行时 ,其容积负荷高达 2 1.3kgCOD·m-3 d-1以上 ,去除COD的产气率达到 0 .4 5m3 ·kgCOD-1以上。在进水负荷剧烈波动的情况下 ,COD去除率维持在 95 %左右 ,出水COD一般在 2 0 0~ 5 0 0mg·L-1之间。
【Abstract】 Two?step anaerobic process was adopted to treat high concentration methanol wastewater, which could enhance the effect of the reactor, strengthen its operation stability and improve its ability of resisting shock loading. The results of full?scale trial showed that the volumetric loading rate of the integrated two?step anaerobic reactor was above 21.3 kgCOD·m -3 d -1 and its gas?producing rate was about 0.45 m 3per kg of removal COD at the normal state. Although the influent loading of the reactor changed strongly, the COD removal was about 95% and its effluent COD was always between 200~500 mg·L -1 .
【Key words】 high concentration methanol wastewater; the integrated two?step anaerobic reactor; granule sludge; gas?producing rate; anaerobic digestion;
- 【文献出处】 中国沼气 ,China Biogas , 编辑部邮箱 ,2002年01期
- 【分类号】X783
- 【被引频次】11
- 【下载频次】305