Carbonate scale reduction in reverse osmosis membrane by CO2 in wastewater reclamation

2017 ◽  
Vol 8 (2) ◽  
pp. 125-136 ◽  
Author(s):  
Muhammad Kashif Shahid ◽  
Minsu Pyo ◽  
Young-Gyun Choi
Keyword(s):  
Reverse Osmosis ◽  
Reverse Osmosis Membrane ◽  
Wastewater Reclamation ◽  
Scale Reduction

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.

Chlorine disinfection significantly aggravated the biofouling of reverse osmosis membrane used for municipal wastewater reclamation

2019 ◽  
Vol 154 ◽  
pp. 246-257 ◽  
Author(s):  
Yun-Hong Wang ◽  
Yin-Hu Wu ◽  
Xin Tong ◽  
Tong Yu ◽  
Lu Peng ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Municipal Wastewater ◽  
Reverse Osmosis Membrane ◽  
Wastewater Reclamation ◽  
Chlorine Disinfection

Fouling of reverse osmosis membrane for municipal wastewater reclamation: Autopsy results from a full-scale plant

Desalination ◽  
2014 ◽  
Vol 349 ◽  
pp. 73-79 ◽  
Author(s):  
Fang Tang ◽  
Hong-Ying Hu ◽  
Li-Juan Sun ◽  
Qian-Yuan Wu ◽  
Yan-Mei Jiang ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Municipal Wastewater ◽  
Full Scale ◽  
Reverse Osmosis Membrane ◽  
Wastewater Reclamation

Technological Development of a Wastewater Reclamation Process for Recreational Reuse: An Approach to Advanced Wastewater Treatment Featuring Reverse Osmosis Membrane

1991 ◽  
Vol 23 (7-9) ◽  
pp. 1629-1638 ◽  
Author(s):  
Yoshiaki Suzuki ◽  
Takeshi Minami
Keyword(s):  
Wastewater Treatment ◽  
Reverse Osmosis ◽  
Technological Development ◽  
Rejection Rate ◽  
Fiscal Year ◽  
Cellulose Membrane ◽  
Reverse Osmosis Membrane ◽  
Wastewater Reclamation ◽  
Chemical Cleaning ◽  
Advanced Wastewater Treatment

The purpose of this survey is to explore ways of reclaiming wastewater to produce high-quality low-cost water for recreational reuse by using a reverse osmosis membrane in advanced wastewater treatment. We examined membrane modules that were able to be used for wastewater treatment in fiscal year 1988. The parameters used to evaluate the membrane were the permeate quantity, permeate water quality, flux decline coefficient, and recovery rate of the permeate quantity by chemical cleaning. As a result, spiral-wound polyvinyl alcohol composite membrane and hollow-fiber cellulose triacetate reverse osmosis membrane were found to be of high practical value. The permeate through these membranes was colorless, transparent, and odorless, with an appearance equivalent to city water. The rejection rate of the fecal coliform group was 100% and the COD of the permeate was 1-2 mg/l, with a chromaticity of 1 degree or less and a phosphorus content of 0.01 mg/l. Under the same pressure condition, these membranes provided three times more permeate quantity than a conventional acetyl cellulose membrane having a time-proven performance. Moreover, these membranes were sufficiently resistant to fouling that they can recover to a 100% permeate quantity by chemical cleaning when they were fouled.

Study of the behaviour of a reverse osmosis membrane for wastewater reclamation — influence of wastewater concentration

Desalination ◽  
2008 ◽  
Vol 222 (1-3) ◽  
pp. 243-248 ◽  
Author(s):  
C. García-Figueruelo ◽  
B. Montag ◽  
A. Bes-Piá ◽  
J.A. Mendoza-Roca ◽  
E. Soriano-Costa ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Reverse Osmosis Membrane ◽  
Wastewater Reclamation

Selection of pretreatment process and reverse osmosis membrane for a wastewater reclamation system for the industrial water use

2013 ◽  
Vol 51 (28-30) ◽  
pp. 5466-5474 ◽  
Author(s):  
Yu-Hoon Hwang ◽  
Chung-Man Moon ◽  
Yong-Tae Ahn ◽  
Suhan Kim ◽  
Jae-Lim Lim ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Water Use ◽  
Industrial Water ◽  
Reverse Osmosis Membrane ◽  
Wastewater Reclamation ◽  
Industrial Water Use ◽  
Reclamation System ◽  
Selection Of
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