The Removal Mechanisms of Organic Compounds in Household Wastewater by Soil Sediment

2015 ◽  
Vol 804 ◽  
pp. 263-266
Author(s):  
Varinthorn Boonyaroj ◽  
Jiraporn Jinasam ◽  
Warangkana Nachailan
Keyword(s):  
Organic Compounds ◽  
Sediment Accumulation ◽  
Oxygen Demand ◽  
Biological Oxygen Demand ◽  
Time Intervals ◽  
Adsorption Experiment ◽  
Adsorption Mechanisms ◽  
Soil Sediment ◽  
Household Wastewater

The main reasons which caused the water pollution in canals, especially in Khlong Prem Prachakorn, are untreated, and improperly treated household, accumulation from flood situation in Bangkok. Soil sediment accumulation in canal contain many types of organic compounds. However, contaminant that causes an increase health risk is the mostly concern. This research was performed to investigate the organic compounds in household wastewater removal under biodegradation, and adsorption mechanisms by using soil sediment taken from Khlong Prem Prachakorn, Bangkok, Thailand. For the adsorption experiment, inactivated sludge was used for determining adsorption capacity of soil sediment. The samples were slowly mixed at 30 rpm and taken at constant time intervals for the determination of biological oxygen demand (BOD), and chemical oxygen demand (COD) reduction. The influent BOD, and COD concentration were found 63 mg/l, and 354 mg/l, respectively. The results indicated that the concentration of BOD, and COD were decreasing rapidly by both biodegradation and adsorption mechanisms within 12 h. In this research, the biological activity by microorganisms in soil sediment as an important role and helped to remove organic compound in household wastewater.

A new method for the determination of biological oxygen demand in domestic wastewater by headspace gas chromatography

2013 ◽  
Vol 1308 ◽  
pp. 32-36 ◽  
Author(s):  
Juan-Juan Gu ◽  
Hui-Chao Hu ◽  
Xin-Sheng Chai ◽  
Ying-Xin Tian ◽  
Donald G. Barnes ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Biological Oxygen Demand ◽  
New Method ◽  
Headspace Gas Chromatography ◽  
Headspace Gas

Microbially Induced Corrosion in the Mineral Processing Industry

2010 ◽  
Vol 95 ◽  
pp. 73-76
Author(s):  
Margarita Stoytcheva ◽  
Benjamin Valdez ◽  
Roumen Zlatev ◽  
Michael Schorr ◽  
Monica Carrillo ◽  
...  
Keyword(s):  
Thiobacillus Ferrooxidans ◽  
Oxygen Demand ◽  
Biological Oxygen Demand ◽  
Microbiologically Influenced Corrosion ◽  
Oxygen Probe ◽  
Processing Industry ◽  
Measuring Cell ◽  
Microbially Induced Corrosion ◽  
Time Determination

A method for real time determination of microbiologically influenced corrosion (MIC) rate provoked by bacteria Thiobacillus Ferrooxidans was developed and applied on carbon steel samples. It is based on biological oxygen demand (BOD) determination of solutions contained Thiobacillus Ferrooxidans performed by the application of a Clark type oxygen probe in especially designed measuring cell.

scholarly journals Terpene content of wine from the aromatic grape variety ‘Irsai Oliver’ (Vitis vinifera L.) depends on maceration time

2017 ◽  
Vol 12 (1) ◽  
pp. 42-50 ◽  
Author(s):  
Mojmir Baron ◽  
Bozena Prusova ◽  
Lenka Tomaskova ◽  
Michal Kumsta ◽  
Jiri Sochor
Keyword(s):  
Gas Chromatography ◽  
Organic Compounds ◽  
Vitis Vinifera L ◽  
Grape Variety ◽  
Time Intervals ◽  
Grapevine Variety ◽  
Linalool Oxide ◽  
Terpene Content ◽  
Very High

AbstractThis study deals with the determination of the content of both free and bound terpenes in berries and wine of the aromatic grapevine variety ‘Irsai Oliver’. Grapes were macerated in juice for different time intervals (viz. 0; 5; 12; 24 hours) and thereafter processed to wine. The objective was to map the dependence of some selected terpenes on the period of maceration. Using gas chromatography, some nine organic compounds were detected. Attention was paid to contents of linalool (3,7-dimethylokta-1,6-dien-3-ol), 2,6-dimetyl-3,7-octadiene-2,6-diol, hotrienol ([(5E)-3,7-dimethylocta-1,5,7-trien-3-yl] acetate), αterpineol (2-(4-Methyl-1-cyclohex-3-enyl)propan-2-ol), β-citronellol (3,7-Dimethyloct-6-en-1-ol), nerol ((Z)-3,7-dimethyl-2,6-octadien-1-ol), geraniol ((trans)-3,7-dimethyl-2,6-oktadien-1-ol) and epoxylinalool (2-(5-ethenyl-5-methyloxolan-2-yl)propan-2- ol): epoxylinalool 1 (trans-linalool oxide (furanoid) cis-linalool oxide (furanoid)) and epoxylinalool 2 (trans-linalool oxide (pyranoid) cis-linalool oxide (pyranoid)). Some basic wine parameters (alcohol, pH, sugars and total acids) were estimated as well. The terpene content in wine increased gradually with the period of maceration. The highest and the lowest amounts of terpenes were recorded after 24 hours of maceration and no maceration, respectively. The terpene glycosides content was higher than that of the aglycones. Linalool and 2,6-dimetyl-3,7-octadiene-2,6-diol were the most abundant terpenes.Based on the results of this study it is possible to conclude that the ‘Irsai Oliver’ variety of grape has a very high terpene content. To improve the aromatic profile of the wine, the grape must should be macerated for 24 hours.

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

scholarly journals Biotreatment of AL-KARAMA Teaching Hospital Wastewater Using Aerobic Packed Bed

2013 ◽  
Vol 10 (1) ◽  
pp. 144-151
Author(s):  
Baghdad Science Journal
Keyword(s):  
Organic Compounds ◽  
Teaching Hospital ◽  
Nitrate Concentration ◽  
Oxygen Demand ◽  
Packed Bed ◽  
Treatment Method ◽  
Biological Oxygen Demand ◽  
Circulation Rate ◽  
Hospital Wastewater ◽  
Percent Reduction

This study is aimed to use the aerobic packed bed in biotreatment of the wastewater which is discharge from AL-KARAMA teaching hospital in Baghdad. The performance of packed-bed treatment method was examined for elimination of the organic compounds from wastewater under aerobic conditions. In this research different parameters were studied. They were: inoculums concentration, circulation rate of wastewater through the bed, packing type and the temperature. Results showed that the system efficiently removed about 82% of the chemical oxygen demand (COD) and 80% of the Biological oxygen demand (BOD). Percent reduction in turbidity was about 92% and reduction in nitrate concentration was about 87%. It was found that best performance of the packed bed method was obtained at temperature of 37 oC, circulation rate of 10 L/min and inoculums concentration of 3%.

scholarly journals Relationship Between Mercury Concentration in Water, Bottom Sediment And Two Mollusc Species (Crassostrea Gasar and Tympanotonus Fuscatus) From a Lagos Creek in Nigeria

2021 ◽  
pp. 143-151
Author(s):  
AO Lawal Are ◽  
RO Moruf ◽  
UJ Sobara ◽  
KB Salami
Keyword(s):  
Bottom Sediment ◽  
Sediment Accumulation ◽  
Oxygen Demand ◽  
Aquatic Organism ◽  
Biological Oxygen Demand ◽  
Accumulation Factor ◽  
Water And Sediment ◽  
Mollusc Species ◽  
Lagos Lagoon ◽  
Water Bottom

Concentration of mercury was investigated in the flesh and shell of two species of benthic mollusc, Crassostrea gasar and Tympanotonus fuscatus and in water and sediment from Makoko Creek, adjacent to the Lagos Lagoon between January to September 2019. Values obtained for physicochemical parameters in Makoko Creek (water temperature- 28.92±0.1°C; pH- 7.73±0.02; salinity- 14.23±0.05 ppt; dissolved oxygen- 5.34±0.02 mg/l; biological oxygen demand- 7.780±0.1 mg/l and chemical oxygen demand- 12.34±0.02 mg/l) were within the acceptable levels for survival, metabolism and physiology of aquatic organism. The concentration of mercury followed decreasing order as sediment >water >flesh >shell across locations for both species. For all the tested samples of C. gasar and T. fuscatus, biowater accumulation factor in flesh and shell were higher than those of bio-sediment accumulation factor. The coefficients of variance (CV %) in shells were lower than those of the flesh for both investigated mollusc species. It was shown that mercury contents of flesh or shells of C. gasar and T. fuscatu are directly affected by those of water and bottom sediment. J. Bio-Sci. 29(1): 143-151, 2021 (June)

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