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首页> 外文期刊>Environmental engineering and management journal >EVALUATION OF BAGASSE PITH AS A SKELETON BUILDER FOR IMPROVEMENT OF SLUDGE DEWATERING
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EVALUATION OF BAGASSE PITH AS A SKELETON BUILDER FOR IMPROVEMENT OF SLUDGE DEWATERING

机译：盐渣作为骨架建筑的污泥脱水效果评价。

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摘要

High contents of colloidal and organic materials in municipal wastewater sludge cause problems in the process of dewatering. The filtering efficiency can be improved by chemical conditioning, but the effectiveness of mechanical dewatering is limited because flocculated sludge is highly compressible. Physical conditioners such as bagasse can be used to facilitate mechanical dewatering. This paper describes the use of bagasse pith (cane sugar waste fiber) to improve the dewatering process of municipal wastewater sludge. The effectiveness of the process was examined using a lab scale filter press. Experiments to evaluate the influence of pith showed that conditioning of sludge with pith entailed better dewatering than that of flocculated sludge alone. Conditioning with pith yields a more porous, rigid and permeable structure that allows the water to pass through it more easily. In addition, bagasse pith has a relatively high cellulose content that effects the C:N ratio; changing it to an average of 35 when dewatered sludge is composted.
机译：城市废水污泥中的胶体和有机物含量高，在脱水过程中会引起问题。通过化学调节可以提高过滤效率，但是由于絮凝的污泥具有很高的可压缩性，因此机械脱水的效果受到限制。诸如蔗渣的物理调节剂可用于促进机械脱水。本文介绍了使用甘蔗渣纤维（蔗糖废纤维）改善市政废水污泥的脱水过程。使用实验室规模的压滤机检查了该过程的有效性。评估髓的影响的实验表明，与仅絮凝的污泥相比，用髓处理的污泥脱水效果更好。用髓进行调理产生的多孔性，刚性和渗透性更好，从而使水更容易通过。此外，蔗渣髓中纤维素含量较高，影响C：N比。堆肥脱水污泥时将其平均更改为35。

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