据中国国家新闻媒体周一透露，在东部地区一家工厂的经理被逮捕，原因是从泔水，下水道污水，杀虫剂和再生工业用油中提取油脂生产食用猪油。
A factory manager in eastern China has been arrested for using grease from swill, sewage, pesticides and recycled industrial oil to make lard for human consumption, the state news media said Monday.
那样做不会冲走全部的污水，但应该能疏通一下发臭的下水道。
That won't flush out all the sewage, but it should unclog some stinking drains.
“下水道淤泥”，是指经城市污水处理厂产生的淤渣，包括预处理的废物、污垢和性质不稳定的淤泥。
"Sewage sludge" means sludge arising from urban effluent treatment plant and includes pretreatment waste, scourings and unstabilised sludge.
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