Preparation of powdered activated carbon from rice husk and its methane adsorption properties

2006 ◽  
Vol 23 (4) ◽  
pp. 663-668 ◽  
Author(s):  
Marriyappan Sivagnanam Balathanigaimani ◽  
Hyun-Chul Kang ◽  
Wang-Geun Shim ◽  
Chan Kim ◽  
Jae-Wook Lee ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Rice Husk ◽  
Adsorption Properties ◽  
Methane Adsorption ◽  
Powdered Activated Carbon

scholarly journals Pore Structure and Methane Adsorption Properties of Surface Modified Activated Carbon

TANSO ◽  
2002 ◽  
Vol 2002 (203) ◽  
pp. 123-126 ◽  
Author(s):  
Yohko Hanzawa ◽  
Naoya Miyajima ◽  
Hiroaki Hatori ◽  
Yoshio Yamada
Keyword(s):  
Activated Carbon ◽  
Pore Structure ◽  
Adsorption Properties ◽  
Methane Adsorption ◽  
Modified Activated Carbon ◽  
Surface Modified

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 Adding the activated carbon of rice husk to increase hydrogen production on water electrolysis

2021 ◽  
Vol 1034 (1) ◽  
pp. 012075
Author(s):  
Purnami ◽  
ING. Wardana ◽  
Sudjito ◽  
Denny Widhiyanuriyawan ◽  
Nurkholis Hamidi
Keyword(s):  
Activated Carbon ◽  
Hydrogen Production ◽  
Rice Husk ◽  
Water Electrolysis
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