Title:
逆浸透またはナノ濾過による水の処理のためのシステムおよび方法
Document Type and Number:
Japanese Patent JP6767587
Kind Code:
B2
Abstract:
The present invention relates to a system and process for treating a feedwater wherein the system includes at least one RO or nanofiltration unit that receives a feed under high pressure and produces a concentrate that is directed to and held at low pressure in a concentrate accumulator. Generally the permeate or the inlet feedwater is maintained at a constant flow rate. Periodically the system is switched from a mode 1 or normal operating process to a mode 2 where the concentrate is drained from the concentrate accumulator. However, in mode 2, the feedwater is still directed into the system and through the RO or nanofiltration unit which produces the permeate and the concentrate.
Inventors:
Mack, Bernard Roy
Wine coup, dale
Wine coup, dale
Application Number:
JP2019537058A
Publication Date:
October 14, 2020
Filing Date:
January 08, 2018
Export Citation:
Assignee:
Veolia Water Solutions & Technologies Support
International Classes:
C02F1/44; B01D61/06; B01D61/12; B01D61/58
Domestic Patent References:
| JP2007125493A | ||||
| JP2014159006A | ||||
| JP2014083480A | ||||
| JP2014221444A |
Foreign References:
| DE19922628C2 | ||||
| EP0599281A1 | ||||
| WO2002055182A1 |
Attorney, Agent or Firm:
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu