基本信息:
- 专利标题： CONTINUOUS PROCESS FOR THE TREATMENT OF WASTEWATER
- 申请号：EP16744428.0 申请日：2016-07-28
- 公开(公告)号：EP3334693A1 公开(公告)日：2018-06-20
- 发明人： HORJUS, Frans Wierd
- 申请人： HaskoningDHV Nederland B.V.
- 申请人地址： Laan 1914 no 35 3818 EX Amersfoort NL
- 专利权人： HaskoningDHV Nederland B.V.
- 当前专利权人： HaskoningDHV Nederland B.V.
- 当前专利权人地址： Laan 1914 no 35 3818 EX Amersfoort NL
- 代理机构： Nederlandsch Octrooibureau
- 优先权： NL2015286 20150810
- 国际公布： WO2017025345 20170216
- 主分类号： C02F3/12
- IPC分类号： C02F3/12 ; C02F3/30 ; C02F3/34 ; B01D21/00 ; B03D3/00
摘要：
A process for the treatment of wastewater is disclosed, which comprises (a) contacting the wastewater with fast settling sludge from step (c) in an anaerobic zone, obtaining a mixture of wastewater and sludge; (b) subjecting the mixture from step (a) and slow settling sludge from step (c) to an aerobic zone, obtaining a water and sludge mixture; (c) subjecting a first part of the mixture from step (b) to a sludge selection step, wherein sludge is selected based on settling velocity and a first portion containing slow settling sludge and a second portion containing fast settling sludge are collected, wherein average settling velocity of the fast settling sludge is greater than that of the slow settling sludge, and wherein the first portion is returned to step (b) and the second portion is returned to step (a); and (d) separating sludge from a second part of the mixture from step (b).
IPC结构图谱:
| C | 化学；冶金 |
| --C02 | 水、废水、污水或污泥的处理 |
| ----C02F | 水、废水、污水或污泥的处理 |
| ------C02F3/00 | 水、废水或污水的生物处理 |
| --------C02F3/02 | .好氧工艺 |
| ----------C02F3/12 | ..活性污泥法 |