Effect of chemical cleaning on membrane biofouling in seawater reverse osmosis processes

2011 ◽  
Vol 33 (1-3) ◽  
pp. 289-294 ◽  
Author(s):  
Lan Hee Kim ◽  
Am Jang ◽  
Hye-Weon Yu ◽  
Sung-Jo Kim ◽  
In S. Kim
Keyword(s):  
Reverse Osmosis ◽  
Chemical Cleaning ◽  
Membrane Biofouling ◽  
Seawater Reverse Osmosis

scholarly journals Recent Advances in Measuring and Controlling Biofouling of Seawater Reverse Osmosis SWRO: A Review

2021 ◽  
Author(s):  
Rana H. Idais ◽  
Azzam A. Abuhabib ◽  
Sofiah Hamzah
Keyword(s):  
Real Time ◽  
Reverse Osmosis ◽  
Recent Literature ◽  
Seawater Desalination ◽  
Real Time Monitoring ◽  
Challenging Issue ◽  
Recent Advances ◽  
Membrane Biofouling ◽  
Seawater Reverse Osmosis ◽  
And Control

This study presents recent literature that sheds light on the SWRO membrane biofouling, Inventory of causes, consequences, measurement, and possible solutions. In particular, biofouling of SWRO is considered as one of the challenges faced by seawater desalination today. For seawater desalination, mitigating membrane biofouling is essentially required and yet to be overcome. Specific shortcomings and prospective solutions are reviewed towards understanding the biofouling mechanism, pretreatment impacts, level of assimilable nutrients, and real-time monitoring. Accordingly, this review aims to address recent advances in biological fouling measurements and control to better understand biofouling and the best ways of dealing with such a challenging issue.

Evaluation of maintenance chemical cleaning in seawater reverse osmosis pilot plant using hot wastewater from power plant

2019 ◽  
Vol 141 ◽  
pp. 1-7 ◽  
Author(s):  
KiTae Park ◽  
◽  
JunYoung Park ◽  
Minjin Kim ◽  
HyungSoo Kim ◽  
...  
Keyword(s):  
Power Plant ◽  
Reverse Osmosis ◽  
Pilot Plant ◽  
Chemical Cleaning ◽  
Seawater Reverse Osmosis

scholarly journals Recent advances in measuring and modeling reverse osmosis membrane fouling in seawater desalination: a review

2013 ◽  
Vol 3 (2) ◽  
pp. 85-101 ◽  
Author(s):  
Lauren Weinrich ◽  
Charles N. Haas ◽  
Mark W. LeChevallier
Keyword(s):  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Future Research ◽  
Assimilable Organic Carbon ◽  
Current State ◽  
Recent Advances ◽  
Membrane Biofouling ◽  
Seawater Reverse Osmosis ◽  
Seawater Treatment

A review of recent literature focuses on the fouling phenomena in membrane systems for desalination, quantification and qualification of parameters related to biological fouling (biofouling), and emerging areas for prevention. In particular, biofouling of seawater reverse osmosis (SWRO) is widely regarded as the most important area for future research on this topic. Reducing membrane fouling is fundamental to seawater treatment but is not well managed. The current state of industry knowledge is evaluated with particular focus on SWRO membrane biofouling, as well as its measurement and mitigation. Specific shortcomings and possible solutions are reviewed regarding the role of assimilable organic carbon, chemical treatment and other components in understanding the fouling process, impacts from pretreatment, level of assimilable nutrients, modeling applications, and real time monitoring. A critical review of recent advances in understanding organic and biological fouling is presented because these are the most difficult to control and least understood.

scholarly journals Membrane Biofouling of Seawater Reverse Osmosis Initiated by Sporogenic Bacillus Strain

2010 ◽  
Vol 15 (3) ◽  
pp. 141-147 ◽  
Author(s):  
Jin-Wook Lee ◽  
Xianghao Ren ◽  
Hye-Weon Yu ◽  
Sung-Jo Kim ◽  
In-S. Kim
Keyword(s):  
Reverse Osmosis ◽  
Bacillus Strain ◽  
Membrane Biofouling ◽  
Seawater Reverse Osmosis

Characterization of seawater reverse osmosis fouled membranes from large scale commercial desalination plant

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Reverse Osmosis ◽  
Large Scale ◽  
Retention Rate ◽  
Local Level ◽  
Microscopic Analysis ◽  
Transmembrane Pressure ◽  
Hydraulic Permeability ◽  
Seawater Reverse Osmosis ◽  
A Chain

The objective of this work is to study the ageing state of a used reverse osmosis (RO) membrane taken in Algeria from the Benisaf Water Company seawater desalination unit. The study consists of an autopsy procedure used to perform a chain of analyses on a membrane sheet. Wear of the membrane is characterized by a degradation of its performance due to a significant increase in hydraulic permeability (25%) and pressure drop as well as a decrease in salt retention (10% to 30%). In most cases the effects of ageing are little or poorly known at the local level and global measurements such as (flux, transmembrane pressure, permeate flow, retention rate, etc.) do not allow characterization. Therefore, a used RO (reverse osmosis) membrane was selected at the site to perform the membrane autopsy tests. These tests make it possible to analyze and identify the cause as well as to understand the links between performance degradation observed at the macroscopic scale and at the scale at which ageing takes place. External and internal visual observations allow seeing the state of degradation. Microscopic analysis of the used membranes surface shows the importance of fouling. In addition, quantification and identification analyses determine a high fouling rate in the used membrane whose foulants is of inorganic and organic nature. Moreover, the analyses proved the presence of a biofilm composed of protein.

scholarly journals Full-Scale Seawater Reverse Osmosis Desalination Plant Simulator

2020 ◽  
Vol 53 (2) ◽  
pp. 16561-16568
Author(s):  
Mariam Elnour ◽  
Nader Meskin ◽  
Khlaed M. Khan ◽  
Raj Jain ◽  
Syed Zaidi ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Full Scale ◽  
Desalination Plant ◽  
Seawater Reverse Osmosis ◽  
Reverse Osmosis Desalination
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