scholarly journals Cobalt(III) Oxidation of Organic Compounds and Its Application to a Determination of Chemical Oxygen Demand at Room Temperature.

1997 ◽  
Vol 13 (4) ◽  
pp. 607-612 ◽  
Author(s):  
Hideji TANAKA ◽  
Hideyoshi MORITA ◽  
Shigeru SHIMOMURA ◽  
Kensaku OKAMOTO
Keyword(s):  
Chemical Oxygen Demand ◽  
Organic Compounds ◽  
Room Temperature ◽  
Oxygen Demand ◽  
Oxidation Of Organic Compounds

The influence of reaction conditions in the oxidation of organic compounds of nuclear laundry water by ozone

2010 ◽  
Vol 61 (10) ◽  
pp. 2557-2561 ◽  
Author(s):  
M. K. Vilve ◽  
M. E. T. Sillanpää
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Carbon ◽  
Chemical Oxygen Demand ◽  
Organic Compounds ◽  
Biochemical Oxygen Demand ◽  
Treatment Time ◽  
Oxygen Demand ◽  
Ozone Treatment ◽  
Reaction Conditions ◽  
Oxidation Of Organic Compounds

This paper presents a summary of degrading organic compounds of nuclear laundry water by ozonation in different conditions of pH, hydrogen peroxide and ultraviolet radiation. The degradation of organic compounds was analysed by chemical oxygen demand (COD), total organic carbon (TOC) and biochemical oxygen demand (BOD). The optimal degradation conditions were at pH 7 with ozone, UV radiation and hydrogen peroxide addition. The transfer of ozone increased significantly, thus resulting in decreased treatment time compared to ozone treatment alone. The reductions of COD, TOC and BOD were 46%, 32% and 70%, respectively.

Direct Determination of Chemical Oxygen Demand by Anodic Decomposition of Organic Compounds at a Diamond Electrode

2014 ◽  
Vol 86 (16) ◽  
pp. 8066-8072 ◽  
Author(s):  
Takeshi Kondo ◽  
Yusuke Tamura ◽  
Masaki Hoshino ◽  
Takeshi Watanabe ◽  
Tatsuo Aikawa ◽  
...  
Keyword(s):  
Chemical Oxygen Demand ◽  
Organic Compounds ◽  
Oxygen Demand ◽  
Direct Determination ◽  
Diamond Electrode

Fast and Reliable Determination of Organic Compounds in Washing Water Samples Using Electrochemical-based Measurements of Chemical Oxygen Demand

2021 ◽  
Vol MA2021-01 (51) ◽  
pp. 1978-1978
Author(s):  
Haitham Kalil ◽  
Eman Darwish ◽  
Shaimaa Maher ◽  
Sayed Moalla ◽  
Alaa Amin ◽  
...  
Keyword(s):  
Chemical Oxygen Demand ◽  
Organic Compounds ◽  
Water Samples ◽  
Oxygen Demand ◽  
Reliable Determination ◽  
Washing Water

Characteristics of granular sludge in a single upflow sludge blanket reactor treating high levels of nitrate and simple organic compounds

2004 ◽  
Vol 50 (8) ◽  
pp. 217-224 ◽  
Author(s):  
C.-Y. Lee ◽  
H.-S. Shin ◽  
S.-J. Hwang
Keyword(s):  
Chemical Oxygen Demand ◽  
Organic Compounds ◽  
Layered Structure ◽  
Microscopic Examination ◽  
Oxygen Demand ◽  
Granular Sludge ◽  
Pseudomonas Sp ◽  
Microbial Composition ◽  
Removal Rates ◽  
Sludge Flotation

Simultaneous denitrification and methanogenesis were accomplished in a single upflow sludge blanket (USB) reactor. More than 99% and 95% of nitrate and chemical oxygen demand (COD) removal rates were obtained at a loading of 600 mg NO3-N/L·d and 3,300 mg COD/L·d, respectively. The specific denitrification rate (SDR) increased as COD/NO3-N ratios decreased. Maximum SDR with acetate could reach 1.05 g NO3-N/gVSS·d. Significant sludge flotation was observed at the top of the reactor due to the change of microbial composition and the formation of hollow granules. Granules became fluffy and buoyant due to the growth of denitrifiers. Microscopic examination showed that granules exhibited layered structure and they were mainly composed of Methanosarcina sp., Pseudomonas sp., and rod-shaped bacteria.

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