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首页> 外文期刊>Journal of Residuals Science & Technology >Effect of Change in Carbon Source on the Dewaterability of Xenobiotic Degrading Mixed Culture
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Effect of Change in Carbon Source on the Dewaterability of Xenobiotic Degrading Mixed Culture

机译：碳源变化对异种降解混合培养物脱水能力的影响

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摘要

Cost effective sludge management after industrial wastewater and hazardous waste treatment processes requires effective dewatering applications. Difficulty in dewatering of sludge arises from extracellular polymeric substances (EPS) which are known to hold large amounts of water. On the other hand, EPS quantity and quality are directly related to carbon composition of the waste. In this study we investigated the changes in dewatering properties of laboratory grown activated sludge samples fed with substrates having different biodegradability. To investigate the effect of change in carbon source and substrate composition on Specific Resistance to Filtration (SRF) two carbon sources, phenol and glucose were selected. Our results indicate that dewaterability of acclimated mixed cultures were different depending on the concentration of different carbon sources. As the content of easily degradable substrate in wastewater is decreased, the SRF values also decreased producing easier to dewater sludges.
机译：工业废水和危险废物处理过程后，具有成本效益的污泥管理需要有效的脱水应用。污泥的脱水困难是由细胞外聚合物（EPS）引起的，众所周知，细胞外聚合物可容纳大量的水。另一方面，EPS的数量和质量与废物的碳成分直接相关。在这项研究中，我们调查了实验室生长的活性污泥样品的脱水特性的变化，这些污泥样品的生物降解能力不同。为了研究碳源和底物组成的变化对比抗过滤性（SRF）的影响，选择了两种碳源，即苯酚和葡萄糖。我们的结果表明，适应的混合培养物的脱水能力因不同碳源的浓度而异。随着废水中易降解底物的含量降低，SRF值也降低，从而使污泥更易于脱水。

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