污泥

• Over 300 strains of bacteria have been found in activated sludge .
  活性污泥中发现有300种以上的细菌。
• Thickening is the usual first step in sludge disposal processing .
  污泥处置过程中，浓缩通常是第一道工序。
• Typically these sludges settle rapidly but do not compact very well .
  这些污泥一般沉降迅速，但并不很紧密。
• Water was splashing and mud was flying and oaths were being sworn .
  只见那里水花四溅，污泥乱飞，骂声不绝。
• Fluid sludge can be sold to farmers for spreading on their fields .
  液态污泥可以出售给农民，洒布在农田里。
• Better methods of dewatering and disposing of these sludges are needed .
  需要研究更好的污泥脱水和处置方法。
• A second method of sludge disposal is digestion by anaerobic bacteria .
  污泥处置的第二个方法，是用厌气细菌消化。
• Theoretically sludge yield is nil for the extended aeration process .
  对延时曝气法而言，理论上污泥生成量应为零。
• In wet combustion the sludge is processed at high temperature and under pressure .
  污泥的湿烧是在高温和压力下进行的。
• Increased coagulant dosage results in greater sludge yield for ultimate disposal .
  增加凝聚剂用量会增大最后处理的污泥量。