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The effect of phosphate buffer on improving the performance of autothermal thermophilic aerobic digestion for sewage sludge

机译：磷酸盐缓冲液对改善污水污泥自热热嗜热性能消化的效果

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摘要

The influence of phosphate buffer on the stabilization of sewage sludge was investigated in autothermal thermophilic aerobic digestion (ATAD). A concentration series of 0.005, 0.01, 0.02 and 0.03 mol phosphate buffer for each liter of sludge was adopted. The phosphate buffer significantly enhanced the performance of the ATAD for sewage sludge. The highest VS removal was achieved by the group with 0.01 mol L-1 phosphate buffer, and the stabilization time of the sludge was shortened by 9 days compared with that of the control. The group with the optimal dosage obtained the deepest stabilization level of sludge, which was reflected by the distribution of the particle size, and achieved 6.08% VS removal higher than that of the control in the end. Lower concentrations of carbon, nitrogen and phosphate in the supernatant were also achieved by proper dosing compared with those of the control.
机译：磷酸盐缓冲液对污水污泥稳定的影响，在自热嗜热性有氧消化（Atad）中进行了研究。 采用浓度系列为0.005,0.01,0.02和0.03摩尔磷酸盐缓冲液，用于每升污泥。 磷酸盐缓冲液显着提高了亚得多的污水污泥的性能。 通过具有0.01mol L-1磷酸盐缓冲液的组实现的最高VS去除，与对照相比，污泥的稳定时间缩短了9天。 该组具有最佳剂量获得最深的稳定水平的污泥，其被粒径的分布反射，并达到了比对照的6.08％Vs去除。 通过适当的剂量与对照相比，还可以通过适当的剂量降低浓度的碳，氮和磷酸盐。

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  • 来源
    《RSC Advances》 |2018年第17期|共6页
  • 作者

    Jin Ningben;

  • 作者单位

    Shanghai Environm Sanitat Engn Design Inst Co Ltd Shanghai 200232 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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