Invention Grant
- Patent Title: Method of treating waste liquid from production plant for hydrocarbons or oxygen-containing compounds
- Patent Title (中): 处理烃类或含氧化合物生产厂废液的方法
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Application No.: US11665732Application Date: 2005-10-21
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Publication No.: US07641797B2Publication Date: 2010-01-05
- Inventor: Hiroaki Ikebe , Masayuki Uchida , Hitoshi Betchaku
- Applicant: Hiroaki Ikebe , Masayuki Uchida , Hitoshi Betchaku
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Toyo Engineering Corporation,Water Re-Use Promotion Center
- Current Assignee: Toyo Engineering Corporation,Water Re-Use Promotion Center
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Flynn, Thiel, Boutell & Tanis, P.C.
- Priority: JP2004-307813 20041022
- International Application: PCT/JP2005/019836 WO 20051021
- International Announcement: WO2006/043726 WO 20060427
- Main IPC: C02F3/00
- IPC: C02F3/00
Abstract:
A method for treating a formaldehyde-containing waste liquid, which is formed as a byproduct in a plant for the production of hydrocarbons or oxygen-containing compounds, containing the steps of: subjecting formaldehyde in the liquid to chemical treatment; and treating the resulting waste liquid, while being aerated, by using a membrane bioreactor that is composed of a microorganism or enzyme and a separation membrane.
Public/Granted literature
- US20070289923A1 Method of Treating Waste Liquid from Production Plant for Hydrocarbons or Oxygen-Containing Compounds Public/Granted day:2007-12-20
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