Combined coagulation-disk filtration process as a pretreatment of ultrafiltration and reverse osmosis membrane for wastewater reclamation: An autopsy study of a pilot plant

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.

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The role of a combined coagulation and disk filtration process as a pre-treatment to microfiltration and reverse osmosis membranes in a municipal wastewater pilot plant

Chemosphere ◽

10.1016/j.chemosphere.2014.05.042 ◽

2014 ◽

Vol 117 ◽

pp. 20-26 ◽

Cited By ~ 20

Author(s):

Kangmin Chon ◽

Jaeweon Cho ◽

Seung Joon Kim ◽

Am Jang

Keyword(s):

Reverse Osmosis ◽

Pilot Plant ◽

Municipal Wastewater ◽

Filtration Process ◽

Pre Treatment ◽

Reverse Osmosis Membranes

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

Water Research ◽

10.1016/j.watres.2019.02.008 ◽

2019 ◽

Vol 154 ◽

pp. 246-257 ◽

Cited By ~ 24

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

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An autopsy study of a fouled reverse osmosis membrane element used in a brackish water treatment plant

Water Research ◽

10.1016/j.watres.2007.06.008 ◽

2007 ◽

Vol 41 (17) ◽

pp. 3915-3923 ◽

Cited By ~ 110

Author(s):

T TRAN ◽

B BOLTO ◽

S GRAY ◽

M HOANG ◽

E OSTARCEVIC

Keyword(s):

Water Treatment ◽

Reverse Osmosis ◽

Brackish Water ◽

Treatment Plant ◽

Water Treatment Plant ◽

Reverse Osmosis Membrane ◽

Membrane Element ◽

Autopsy Study

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Bioluminescence-Based Method for Measuring Assimilable Organic Carbon in Pretreatment Water for Reverse Osmosis Membrane Desalination

Applied and Environmental Microbiology ◽

10.1128/aem.01829-10 ◽

2010 ◽

Vol 77 (3) ◽

pp. 1148-1150 ◽

Cited By ~ 21

Author(s):

Lauren A. Weinrich ◽

Orren D. Schneider ◽

Mark W. LeChevallier

Keyword(s):

Organic Carbon ◽

Reverse Osmosis ◽

Pilot Plant ◽

Vibrio Harveyi ◽

Marine Organism ◽

Growth Potential ◽

Reverse Osmosis Membrane ◽

Biological Growth ◽

Assimilable Organic Carbon ◽

Reverse Osmosis Desalination

ABSTRACTA bioluminescence-based assimilable organic carbon (AOC) test was developed for determining the biological growth potential of seawater within the reverse osmosis desalination pretreatment process. The test usesVibrio harveyi, a marine organism that exhibits constitutive luminescence and is nutritionally robust. AOC was measured in both a pilot plant and a full-scale desalination plant pretreatment.

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