Treatment of high-temperature rinsing water from a degreasing plant by reverse osmosis
(1997) In Desalination 114(2). p.175-181- Abstract
- In the manufacture of heat-exchangers, it is of great importance that the heat-exchanger plates be thoroughly cleaned before being sealed. At a Swedish heat-exchanger manufacturer, oil, grease and other impurities are removed in a washing plant consisting of three stages: a degreasing tank and two rinsing tanks. The possibility of improving the cleanliness of the heat-exchanger plates, without increasing the need for fresh water, by treating the rinsing water in a reverse osmosis (RO) plant, was studied in this investigation. A new, high-temperature-resistant, thin-film RO membrane from Osmonics-Desal was used in the experiments. The influence of a lubricant, based on a block copolymer, and an alkaline degreasing agent on the membrane... (More)
- In the manufacture of heat-exchangers, it is of great importance that the heat-exchanger plates be thoroughly cleaned before being sealed. At a Swedish heat-exchanger manufacturer, oil, grease and other impurities are removed in a washing plant consisting of three stages: a degreasing tank and two rinsing tanks. The possibility of improving the cleanliness of the heat-exchanger plates, without increasing the need for fresh water, by treating the rinsing water in a reverse osmosis (RO) plant, was studied in this investigation. A new, high-temperature-resistant, thin-film RO membrane from Osmonics-Desal was used in the experiments. The influence of a lubricant, based on a block copolymer, and an alkaline degreasing agent on the membrane performance was studied. The flux reduction of a model rinsing solution with time was moderate. The flux after 500 h of continuous treatment at 65 degrees C and 4.0 MPa was 351/m(2) h, and the permeate quality fulfilled the demands of the heat-exchanger manufacturer. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3915719
- author
- Jönsson, Ann-Sofi LU and Wennerbeck, J
- organization
- publishing date
- 1997
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- reverse osmosis, high-temperature, RO, degreasing solution
- in
- Desalination
- volume
- 114
- issue
- 2
- pages
- 175 - 181
- publisher
- Elsevier
- external identifiers
-
- wos:000072265900008
- scopus:0031398936
- ISSN
- 1873-4464
- DOI
- 10.1016/S0011-9164(98)00009-5
- language
- English
- LU publication?
- yes
- id
- 57f3035b-51a2-4f1b-8c2a-64b543208b98 (old id 3915719)
- date added to LUP
- 2016-04-01 11:51:35
- date last changed
- 2023-11-11 03:37:54
@article{57f3035b-51a2-4f1b-8c2a-64b543208b98,
abstract = {{In the manufacture of heat-exchangers, it is of great importance that the heat-exchanger plates be thoroughly cleaned before being sealed. At a Swedish heat-exchanger manufacturer, oil, grease and other impurities are removed in a washing plant consisting of three stages: a degreasing tank and two rinsing tanks. The possibility of improving the cleanliness of the heat-exchanger plates, without increasing the need for fresh water, by treating the rinsing water in a reverse osmosis (RO) plant, was studied in this investigation. A new, high-temperature-resistant, thin-film RO membrane from Osmonics-Desal was used in the experiments. The influence of a lubricant, based on a block copolymer, and an alkaline degreasing agent on the membrane performance was studied. The flux reduction of a model rinsing solution with time was moderate. The flux after 500 h of continuous treatment at 65 degrees C and 4.0 MPa was 351/m(2) h, and the permeate quality fulfilled the demands of the heat-exchanger manufacturer.}},
author = {{Jönsson, Ann-Sofi and Wennerbeck, J}},
issn = {{1873-4464}},
keywords = {{reverse osmosis; high-temperature; RO; degreasing solution}},
language = {{eng}},
number = {{2}},
pages = {{175--181}},
publisher = {{Elsevier}},
series = {{Desalination}},
title = {{Treatment of high-temperature rinsing water from a degreasing plant by reverse osmosis}},
url = {{http://dx.doi.org/10.1016/S0011-9164(98)00009-5}},
doi = {{10.1016/S0011-9164(98)00009-5}},
volume = {{114}},
year = {{1997}},
}