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   Articles with "cod ratio" as a keyword



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Denitrifying phosphorus removal and microbial community characteristics of two-sludge DEPHANOX system: Effects of COD/TP ratio

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recommendations! Published in 2021 at "Biochemical Engineering Journal"

DOI: 10.1016/j.bej.2021.108059

Abstract: Abstract Two Lab-scale ANOXic DEPHosphation (DEPHANOX) bioreactors, in the continuous flow (DEPHANOX-CFR) and sequencing batch reactor (DEPHANOX-SBR) modes, were successfully operated and compared with varying influent C/P ratios. A decrease of influent chemical oxygen demand… read more here.

Keywords: dephanox; dephanox system; phosphorus; cod ratio ... See more keywords
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Optimal influent COD/N ratio for obtaining low GHG emissions and high pollutant removal efficiency in constructed wetlands

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recommendations! Published in 2020 at "Journal of Cleaner Production"

DOI: 10.1016/j.jclepro.2020.122003

Abstract: Abstract Influent chemical oxygen demand (COD)/nitrogen (N) ratio plays a crucial role in the biogeochemical cycle of carbon and N in constructed wetlands (CWs). This study evaluated the greenhouse gas (GHG) emissions, pollutant removal efficiency… read more here.

Keywords: pollutant removal; influent cod; ghg emissions; removal efficiency ... See more keywords
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The role of COD/N ratio on the start-up performance and microbial mechanism of an upflow microaerobic reactor treating piggery wastewater.

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recommendations! Published in 2018 at "Journal of environmental management"

DOI: 10.1016/j.jenvman.2018.04.029

Abstract: This study investigated the role of COD/N ratio on the start-up and performance of an upflow microaerobic sludge reactor (UMSR) treating piggery wastewater at 0.5 mgO2/L. At high COD/N ratio (6.24 and 4.52), results showed… read more here.

Keywords: upflow microaerobic; role cod; cod ratio; start performance ... See more keywords
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Impacts of influent COD/N ratio on floc physicochemical characteristics and microbial community of nitrifying sludge under high-strength ammonia conditions

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recommendations! Published in 2021 at "Journal of water process engineering"

DOI: 10.1016/j.jwpe.2021.102002

Abstract: Abstract The impacts of influent COD/N ratios on the floc properties and microbial communities of nitrifying sludge under high-strength ammonia conditions were investigated. Excessive organic loads severely deteriorated the nitrification rate and biomass-liquid separation. Moreover,… read more here.

Keywords: high strength; influent cod; cod ratio; nitrifying sludge ... See more keywords
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Further steps in the standardization of BOD5/COD ratio as a biological stability index for MSW.

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recommendations! Published in 2017 at "Waste management"

DOI: 10.1016/j.wasman.2017.06.035

Abstract: In recent decades the definition of standard test methodologies suitable for use in assessing the biological stability of solid waste has become increasingly imperative. To meet this requirement, the BOD5/COD ratio, measured on waste eluate,… read more here.

Keywords: standardization; waste; cod ratio; biological stability ... See more keywords