Modeling of small scale reverse osmosis systems

A simulation model was developed and verified for a small scale reverse osmosis (RO) system operating in a closed-loop concentrating mode. The model combines material balances on the feed tank, membrane module and product tank with membrane mass-transfer models. The proposed model is a nonlinear dif...

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Bibliographic Details
Published inDesalination Vol. 52; no. 3; pp. 267 - 284
Main Authors Slater, C.S., Zielinski, J.M., Wendel, R.G., Uchrin, C.G.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 1985
Elsevier
Subjects
Applied sciences
desalination
Exact sciences and technology
Industrial wastewaters
membranes
Pollution
reverse osmosis
simulation
Wastewaters
water treatment
Water treatment and pollution
Closed loop
Reverse osmosis
Waste water purification
Mathematical model
Desalination
Small scale
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Summary:A simulation model was developed and verified for a small scale reverse osmosis (RO) system operating in a closed-loop concentrating mode. The model combines material balances on the feed tank, membrane module and product tank with membrane mass-transfer models. The proposed model is a nonlinear differential equation representing the feed concentration as a function of operating time. Correlations of flux, solute concentrations, and rejection with operating time and overall system recovery are functions of the model. Total dissolved solids (TDS) was the parameter representing solute concentration. Data from simple salt and industrial wastewater experiments were used to verify the model. The model suggests a good fit to the data over the range studied.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0011-9164
1873-4464
DOI:10.1016/0011-9164(85)80037-0