نتایج جستجو برای: cod

تعداد نتایج: 11067  

Journal: :Journal of hazardous materials 2007
S Raghu C Ahmed Basha

This paper examines the use of chemical or electrocoagulation treatment process followed by ion-exchange process of the textile dye effluent. The dye effluent was treated using polymeric coagulant (cationic dye-fixing agent) or electrocoagulation (iron and aluminum electrode) process under various conditions such as various current densities and effect of pH. Efficiencies of COD reduction, colo...

2002
Sergey Kalyuzhnyi Marina Gladchenko

As a first step of treatment of landfill leachates (total COD – 1,430-3,810 mg/l, total nitrogen 90162 mg/l), a performance of laboratory UASB reactors has been investigated under mesophilic (30 C), sub-mesophilic (20 C) and psychrophilic (10 C) conditions. Under hydraulic retention times (HRT) of around 7 h, when the average organic loading rates (OLR) were around 5 g COD/l/day, the total COD ...

Journal: :Inorganic chemistry 2012
Kuang-Hway Yih Isil K Hamdemir Joseph E Mondloch Ercan Bayram Saim Özkar Relja Vasić Anatoly I Frenkel Oren P Anderson Richard G Finke

Reported herein is the synthesis of the previously unknown [Ir(1,5-COD)(μ-H)](4) (where 1,5-COD = 1,5-cyclooctadiene), from commercially available [Ir(1,5-COD)Cl](2) and LiBEt(3)H in the presence of excess 1,5-COD in 78% initial, and 55% recrystallized, yield plus its unequivocal characterization via single-crystal X-ray diffraction (XRD), X-ray absorption fine structure (XAFS) spectroscopy, el...

2013
Ahmed Tawfik Hosam Elsayed Hassan Dessouki

Treatment of starch wastewater was investigated in a 30 l capacity pilot scale anaerobic baffled reactor (ABR) under mesophillic conditions. The reactor was operated at different hydraulic retention times (HRTs) of 72; 48 and 24 h. Corresponding organic loading rates (OLRs) were 8.7; 7.6 and 22 kg COD/m 3 . d. The results showed that COD and BOD5 removals exceeded 40 and 50% respectively at OLR...

2007
Jon Loehrke Steve Cadrin

Recent observations of cod movement across stock boundaries are generally consistent with historical tagging data as well as information from other stock identification approaches. This working paper provides a historical context in which to consider recent tagging data for spatial delineation of cod stock assessments (TOR C). Introduction The objective of this report is to review the literatur...

Journal: :Ecology 2007
Lorenzo Ciannelli Gjert E Dingsør Bjarte Bogstad Geir Ottersen Kung-sik Chan Harald Gjøsaeter Jan Erik Stiansen Nils Chr Stenseth

The majority of survival analyses focus on temporal scales. Consequently, there is a limited understanding of how species survival varies over space and, ultimately, how spatial variability in the environment affects the temporal dynamics of species abundance. Using data from the Barents Sea, we study the spatiotemporal variability of the juvenile Atlantic cod (Gadus morhua) survival. We develo...

2016
Edite Vila Nova Rosário Diogo Costa Luís Timóteo Ana Ambrósio Rodrigues Jorge Varanda Susana Vaz Nery Miguel Brito

BACKGROUND The Dande Health and Demographic Surveillance System (HDSS) located in Bengo Province, Angola, covers nearly 65,500 residents living in approximately 19,800 households. This study aims to describe the main causes of deaths (CoD) occurred within the HDSS, from 2009 to 2012, and to explore associations between demographic or socioeconomic factors and broad mortality groups (Group I-Com...

Journal: :Journal of the National Cancer Institute 2001
D F Penson P C Albertsen P S Nelson M Barry J L Stanford

Accurate assessment of cause of death (COD) is important for determining cause-specific survival in cancer research. It is possible to reliably ascertain COD by meticulous review of inpatient and outpatient medical records with the use of predetermined clinical algorithms (1). Unfortunately, this method, although useful for small retrospective studies, is impractical for large datasets and nati...

2006
A. Costa-Bauzá J. Perelló B. Isern P. Sanchis F. Grases

Background: The application of extracorporeal shock wave lithotripsy (ESWL) to calcium oxalate dihydrate (COD) renal calculi gives excellent fragmentation results. Nevertheless, the retention of postESWL fragments within the kidney is still an important trouble. The aim of this paper is to study the regrowth of COD real spontaneously passed post-ESWL calculi fragments as a function of urinary c...

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