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Technology of wastewater treatment in polyester weight loss process

机译:聚酯减重工艺废水处理技术

摘要

PURPOSE: Provided is a method for treating polyester weight loss wastewater which is highly concentrated alkali wastewater with pH 12 to 14, COD 10,000 ppm and BOD 40,000 ppm and contains non-degradable material such as terephthalic acid (TPA) and ethylene glycol (EG). CONSTITUTION: The method comprises the steps of (a) mixing the polyester weight loss wastewater with conventional dying wastewater with a mixing ratio of 1:6 to 1:12 to dilute the polyester weight loss wastewater and reduce BOD and COD load, (b) decomposing contaminants in the diluted wastewater using excess sludge generated from an aeration tank of a wastewater treatment plant or biomedia, and (c) treating the outflow of the step (b) with an aeration tank.
机译:用途:提供一种处理聚酯减重废水的方法,该废水是pH值为12至14的高浓度碱性废水,COD 10,000 ppm和BOD 40,000 ppm,并且包含不可降解物质,例如对苯二甲酸(TPA)和乙二醇(EG) 。组成:该方法包括以下步骤:(a)将聚酯减重废水与常规染色染料以1:6至1:12的混合比混合,以稀释聚酯减重废水并降低BOD和COD负荷,(b)使用从废水处理厂或生物介质的曝气池产生的过量污泥分解稀释废水中的污染物,以及(c)用曝气池处理步骤(b)的流出。

著录项

  • 公开/公告号KR20040019135A

    专利类型

  • 公开/公告日2004-03-05

    原文格式PDF

  • 申请/专利权人 BOO JIN YOUNG;

    申请/专利号KR20020049393

  • 发明设计人 BOO JIN YOUNG;

    申请日2002-08-21

  • 分类号C02F3/02;

  • 国家 KR

  • 入库时间 2022-08-21 22:49:38

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