Comparison of the reverse osmosis membrane fouling behaviors of different types of water samples by modeling the flux change over time

Chemosphere ◽  
2021 ◽  
pp. 133217
Author(s):  
Yu-Qing Xu ◽  
Xin Tong ◽  
Yin-Hu Wu ◽  
Hao-Bin Wang ◽  
Nozomu Ikuno ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Water Samples ◽  
Membrane Fouling ◽  
Reverse Osmosis Membrane ◽  
Change Over Time ◽  
Flux Change ◽  
Different Types ◽  
Over Time

scholarly journals A feasibility study on UV pretreatment for microfiltration and reverse osmosis membrane processes in wastewater reclamation

2013 ◽  
Vol 3 (3) ◽  
pp. 260-267
Author(s):  
Ho-Young Jeong ◽  
Yoon-Jin Kim ◽  
Ji-Hee Han ◽  
Dong-Ha Kim ◽  
Jinsik Sohn ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Treatment Options ◽  
Human Consumption ◽  
Feed Water ◽  
Reverse Osmosis Membrane ◽  
Wastewater Reclamation ◽  
Important Place ◽  
Quality Water ◽  
Small Footprint

Wastewater reclamation is where wastewater from various sources is purified so the water can be used by human consumption. Among many treatment options, membranes have gained an important place in wastewater reclamation. It allows the production of high quality water from wastewater, with a small footprint and affordable energy consumption. Nevertheless, membrane fouling is regarded as a serious problem due to the high fouling potential of wastewater. In this study, we applied ultraviolet (UV) processes as a pretreatment for membrane systems that are used for wastewater reclamation. Low pressure UV (LUV) and pulsed UV (PUV) were used to decompose or alter the organics in the feed water of the membranes. Effluent organic matter was characterized by total organic carbon (TOC) and UV absorbance (UVA). Also the effect of UV pretreatment on membrane fouling was investigated for microfiltration (MF) and reverse osmosis (RO) processes. The pretreatment of membranes using LUV or PUV was effective to control fouling of hollow fiber MF membranes. This is probably because of the reduction and modification of organics after UV treatments. However, the effect of UV pretreatment on RO flux was less significant, which is attributed to low fouling prophecy after MF treatment.

The molecular structures of polysaccharides affect their reverse osmosis membrane fouling behaviors

2020 ◽  
pp. 118984
Author(s):  
Yin-Hu Wu ◽  
Xin Tong ◽  
Xue-Hao Zhao ◽  
Yuan Bai ◽  
Nozomu Ikuno ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Molecular Structures ◽  
Reverse Osmosis Membrane

Alleviating reverse osmosis membrane fouling caused by biopolymers using pre-ozonation

2020 ◽  
Vol 595 ◽  
pp. 117546 ◽  
Author(s):  
Zhonglong Yin ◽  
Tiancheng Wen ◽  
Yan Li ◽  
Aimin Li ◽  
Chao Long
Keyword(s):  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Reverse Osmosis Membrane

Preozonation Effects on the Reduction of Reverse Osmosis Membrane Fouling in Water Reuse

2011 ◽  
Vol 33 (5) ◽  
pp. 379-388 ◽  
Author(s):  
Benjamin D. Stanford ◽  
Aleksey N. Pisarenko ◽  
R. David Holbrook ◽  
Shane A. Snyder
Keyword(s):  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Water Reuse ◽  
Reverse Osmosis Membrane

Production of process water using integrated membrane processes

2006 ◽  
Vol 60 (6) ◽  
Author(s):  
K. Karakulski ◽  
M. Gryta ◽  
M. Sasim
Keyword(s):  
Reverse Osmosis ◽  
Membrane Fouling ◽  
Tap Water ◽  
Industrial Effluents ◽  
Membrane Distillation ◽  
Process Water ◽  
Feed Water ◽  
Reverse Osmosis Membrane ◽  
Permeate Flux ◽  
Membrane Processes

AbstractApplication of ultrafiltration, nanofiltration, reverse osmosis, membrane distillation, and integrated membrane processes for the preparation of process water from natural water or industrial effluents was investigated. A two-stage reverse osmosis plant enabled almost complete removal of solutes from the feed water. High-purity water was prepared using the membrane distillation. However, during this process a rapid membrane fouling and permeate flux decline was observed when the tap water was used as a feed. The precipitation of deposit in the modules was limited by the separation of sparingly soluble salts from the feed water in the nanofiltration. The combined reverse osmosis—membrane distillation process prevented the formation of salt deposits on the membranes employed for the membrane distillation. Ultrafiltration was found to be very effective removing trace amounts of oil from the feed water. Then the ultrafiltration permeate was used for feeding of the remaining membrane modules resulting in the total removal of oil residue contamination. The ultrafiltration allowed producing process water directly from the industrial effluents containing petroleum derivatives.

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