Competitative adsorption of two dissolved organics onto activated carbon—II

1981 ◽  
Vol 36 (4) ◽  
pp. 743-757 ◽  
Author(s):  
W. Fritz ◽  
W. Merk ◽  
E.U. Schlünder
Keyword(s):  
Activated Carbon ◽  
Dissolved Organics

Microbial activity in biological activated carbon bed by pulse responses

1996 ◽  
Vol 34 (5-6) ◽  
pp. 213-222 ◽  
Author(s):  
Akiyoshi Sakoda ◽  
Jianzhong Wang ◽  
Motoyuki Suzuki
Keyword(s):  
Activated Carbon ◽  
Microbial Activity ◽  
Empirical Relationship ◽  
Pond Water ◽  
Biological Activated Carbon ◽  
Dissolved Organics ◽  
Degradation Rates ◽  
One Year ◽  
The Moment ◽  
Micro Organisms

The moment analysis of pulse responses was applied to the biological activated carbon (BAC) in order to elucidate its microbial activity and adsorption capacity separately. The microbial activity derived from this approach was focussed on and the following was found in this work. First, the activity of micro-organisms attached on activated carbon was higher than those on other carriers. Second, the microbial activities of bench-scale BACs treating pond water varied with the pretreatments by ozone and chlorine, but did not change considerably during the operation for about one year. Also, an the empirical relationship was found between the microbial degradation rates of pulse-injected glucose and background dissolved organics. It was concluded that this approach is useful for evaluating the microbial activity in BAC in a relatively easy manner.

Dissolved Organics Removal by Solid-Liquid Phase Separation (Adsorption and Coagulation)

1993 ◽  
Vol 27 (11) ◽  
pp. 245-248 ◽  
Author(s):  
István Licskó
Keyword(s):  
Activated Carbon ◽  
Suspended Solids ◽  
Laboratory Data ◽  
Colloidal Dispersion ◽  
Surface Water Treatment ◽  
Organics Removal ◽  
Dissolved Organics ◽  
Different Types ◽  
Treatment Technologies ◽  
Solid Liquid

To improve the organics removal efficiency of surface water treatment technologies, powdered activated carbon (PAC) has often been added. Some of the PAC particles with the dissolved organics already adsorbed are present in the form of a colloidal quasi-colloidal dispersion and can be removed most efficiently by coagulating and flocculating them together with the natural suspended solids. This, however, cannot be accomplished unless the PAC is added 3-5 minutes ahead under violent stirring of the water to be treated. Laboratory data demonstrated that the PAC and the Al-hydroxides formed of the coagulant (Al-salt) added remove different types of organics from the water and consequently do not compete with each other.

Adsorption of dissolved organics from industrial effluents on to activated carbon

2007 ◽  
Vol 25 (7) ◽  
pp. 491-502 ◽  
Author(s):  
Lawrence K. Wang ◽  
Richard P. Leonard ◽  
Dennis W. Goupil ◽  
Mu Hao Wang
Keyword(s):  
Activated Carbon ◽  
Industrial Effluents ◽  
Dissolved Organics

Thermal stability and decomposition of perfluoroalkyl substances on spent granular activated carbon

2020 ◽  
Author(s):  
Feng Xiao ◽  
Bin Yao ◽  
Pavankumar Challa Sasi ◽  
Svetlana Golovko ◽  
Dana Soli ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Perfluoroalkyl Substances

Modification of activated carbon fiber pore structure by coke deposition

2001 ◽  
Vol 11 (PR3) ◽  
pp. Pr3-279-Pr3-286
Author(s):  
X. Dabou ◽  
P. Samaras ◽  
G. P. Sakellaropoulos
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Pore Structure ◽  
Activated Carbon Fiber ◽  
Coke Deposition

Enhancing the power generation of Rhodopseudomonas palustris-based MFC

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1261-1268
Author(s):  
Shu Otani ◽  
Dang-Trang Nguyen ◽  
Kozo Taguchi
Keyword(s):  
Activated Carbon ◽  
Rhodopseudomonas Palustris ◽  
Ozone Treatment ◽  
Maximum Power Density ◽  
On Demand ◽  
Long Time ◽  
Dry Conditions ◽  
Carbon Sheet ◽  
Uv Ozone

In this study, a portable and disposable paper-based microbial fuel cell (MFC) was fabricated. The MFC was powered by Rhodopseudomonas palustris bacteria (R. palustris). An activated carbon sheet-based anode pre-loaded organic matter (starch) and R. palustris was used. By using starch in the anode, R. palustris-loaded on the anode could be preserved for a long time in dry conditions. The MFC could generate electricity on-demand activated by adding water to the anode. The activated carbon sheet anode was treated by UV-ozone treatment to remove impurities and to improve its hydrophilicity before being loaded with R. palustris. The developed MFC could generate the maximum power density of 0.9 μW/cm2 and could be preserved for long-term usage with little performance degradation (10% after four weeks).

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