Fouling behaviors correlating to water characteristics during the ultrafiltration of micro-polluted water with and without the addition of powdered activated carbon

2016 ◽  
Vol 511 ◽  
pp. 320-328 ◽  
Author(s):  
Junxia Liu ◽  
Zhihong Wang ◽  
Bingzhi Dong ◽  
Dongsheng Zhao
Keyword(s):  
Activated Carbon ◽  
Powdered Activated Carbon ◽  
Polluted Water ◽  
Water Characteristics

scholarly journals Reversible and irreversible membrane fouling in hollow-fiber UF membranes filtering surface water: effects of ozone/powdered activated carbon treatment

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 10323-10335
Author(s):  
Weiwei Huang ◽  
Yuanhong Zhu ◽  
Lin Wang ◽  
Weiguang Lv ◽  
Bingzhi Dong ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Surface Water ◽  
Hollow Fiber ◽  
Membrane Fouling ◽  
Powdered Activated Carbon ◽  
Polluted Water ◽  
Water Effects ◽  
Uf Membranes ◽  
Carbon Treatment

This study investigated the reversible and irreversible membrane fouling behavior of micro polluted water by ozone/powdered activated carbon (PAC)/ultrafiltration treatment.

Research and Application of Ultrafiltration Technology in Micro-Polluted Water Resources Treatment

2013 ◽  
Vol 361-363 ◽  
pp. 701-704
Author(s):  
Gang Li ◽  
Chun Hong Hao ◽  
Yu Ming Jing ◽  
Dao Xing Liu ◽  
Yi Li
Keyword(s):  
Activated Carbon ◽  
Water Resources ◽  
Treatment Effects ◽  
Powdered Activated Carbon ◽  
Polluted Water ◽  
Membrane Flux

The characteristics of combined ultrafiltration technologies such as powdered activated carbon/UF, coagulation/UF, submerged ultrafiltration and the treatment effects of micro-polluted water resources are introduced. And the influence of the addition of PAC or coagulant on membrane flux is also summarized and analyzed. At last, the development of combined ultrafiltration technologies is prospected, and the research points and directions are indicated.

Effect of operational modes on the removal of a synthetic organic chemical by powdered activated carbon during ultrafiltration

2001 ◽  
Vol 1 (5-6) ◽  
pp. 39-47
Author(s):  
Y. Matsui ◽  
A. Yuasa ◽  
F. Colas
Keyword(s):  
Activated Carbon ◽  
Cross Flow ◽  
Powdered Activated Carbon ◽  
Organic Chemical ◽  
Filtration Cycle ◽  
Dead End ◽  
Synthetic Organic Chemical ◽  
The Cross ◽  
Short Time ◽  
Operational Modes

The effects of operational modes on the removal of a synthetic organic chemical (SOC) in natural water by powdered activated carbon (PAC) during ultrafiltration (UF) were studied, through model simulations and experiments. The removal percentage of the trace SOC was independent of its influent concentration for a given PAC dose. The minimum PAC dosage required to achieve a desired effluent concentration could quickly be optimized from the C/C0 plot as a function of the PAC dosage. The cross-flow operation was not advantageous over the dead-end regarding the SOC removal. Added PAC was re-circulated as a suspension in the UF loop for only a short time even under the cross-flow velocity of gt; 1.0 m/s. The cross-flow condition did not contribute much to the suspending of PAC. The pulse PAC addition at the beginning of a filtration cycle resulted in somewhat better SOC removal than the continuous PAC addition. The increased NOM loading on PAC which was dosed in a pulse and stayed longer in the UF loop could possibly further decrease the adsorption rate.

Fate of Toxic Organic Compounds in Activated Sludge and Integrated PAC Systems

1987 ◽  
Vol 19 (3-4) ◽  
pp. 471-482 ◽  
Author(s):  
W. J. Weber ◽  
B. E. Jones ◽  
L. E. Katz
Keyword(s):  
Activated Carbon ◽  
Activated Sludge ◽  
Organic Compounds ◽  
Powdered Activated Carbon ◽  
Carbon Adsorption ◽  
Powdered Carbon ◽  
Benzene Toluene ◽  
Adsorptive Properties ◽  
Carbon Concentrations ◽  
Toxic Organic Compounds

The addition of powdered activated carbon (PAC) to activated sludge treatment systems to enhance removal of specific toxic organic compounds from wastewater was evaluated. Nine organic compounds encompassing a range of solubility, volatility, biodegradability, and adsorptive properties were studied. Kate and equilibrium investigations were conducted to quantify the removal mechanisms of volatilization, biodegradation, biosorption, and carbon adsorption. Results from steady-state bioreactor studies showed that the addition of less than 100 mg/ℓ powdered activated carbon to the influent did not enhance the removal of the biodegradable target compounds investigated: benzene, toluene, ethylbenzene, o-xylene, chlorobenzene, and nitrobenzene. Significantly improved removals of the poorly degradable and non-biodegradable compounds 1,2-dichlorobenzene, 1,2,4-trichlorobenzene, and lindane occurred at influent powdered carbon concentrations in the 12.5 to 25 mg/ℓ range. Influent powdered carbon concentrations of 100 mg/ℓ effected overall removals of greater than 90%. The addition of powdered activated carbon not only reduced effluent concentrations but also reduced the amounts of the volatile compounds stripped to the atmosphere.

scholarly journals Hazardous cyanobacteria integrity response to velocity gradient and powdered activated carbon in water treatment plants

2021 ◽  
Vol 773 ◽  
pp. 145110
Author(s):  
Samylla Oliveira ◽  
Allan Clemente ◽  
Indira Menezes ◽  
Amanda Gois ◽  
Ismael Carloto ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Velocity Gradient ◽  
Powdered Activated Carbon ◽  
Water Treatment Plants
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