The treatment and disposal of sludge is essential in the process of wastewater treatment.
针对小城镇污泥的特征，提出了几种宜在小城镇实施的污泥处理与处置方法。
The treatment and disposal of sludge is essential in the process of wastewater treatment.
为避免城市污水污泥产生二次污染，必须对其进行妥善处理与处置。
The treatment and disposal of sludge is essential in the process of wastewater treatment.
为避免城市污水污泥产生二次污染，必须对其进行妥善处理与处置。
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