sludge

• Sludge liquor is recirculated in the secondary system to assure its purity before discharge .
  该泥水回流到二级处理系统，以保证排放前的澄清度。
• Frequently, dewatering of sludges is difficult, especially when of gelatinous consistency .
  通常来说，污泥脱水是困难的，特别是属于胶粘状稠厚污泥时。
• More data is needed to substantiate the effectiveness of adsorption on sludge as a removal process .
  需要更多的资料来论证污泥吸附作为去除方法的效能。
• Only 1% of the croplands would be sufficient to receive all the sludge produced in the united states .
  只有1的农业用地就足够容纳全美国所产生的污泥。
• The prevailing conditions in activated sludge may even promote the hatching of some helminth eggs .
  在活性污泥中，适宜的条件甚至可能刺激一些蠕虫卵的孵化。
• But more data is needed to substantiate the effectiveness of absorption on sludge as a removal process .
  但需要更多的资料来论证污泥吸附作为一种去除方法的效能。
• It improves digester cost operation and reduces capital cost wherever sludge digestion is utilized .
  当采用污泥消化时，它可改进消化器的运行并降低其基建投资费用。
• Microscopic examination of this sludge reveals that it is formed by a heterogeneous population of microorganisms .
  微观检验这些污泥，发现它们是由异质微生物群体所构成的。
• Acid storage tank should also be clustered nearby to minimize sludge and scale formation in long lines .
  酸的贮槽也应该集中于厂房附近，以尽量减少在长管线中沉积污泥和疤垢。
• The trickling filter and activated sludge efficiencies cited required primary sedimentation and effluent circulation .
  列举的生物滤池与活性污泥法的效率需要初次沉淀和回流。