A solid chemical oxygen demand (COD) method for determining biomass in waste waters

Bullock, Christopher Mark; Bicho, Paul; Zhang, Y.; Saddler, John N.

doi:10.1016/0043-1354(95)00271-5

Cited by 41 publications

(15 citation statements)

References 2 publications

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“…To determine the periphyton biomass, 5 mm of the PE pipe was cut every four to eight days and the periphyton was washed in an Erlenmeyer flask and diluted to 10 ml using distilled water. The biomass COD was determined following the method of Bullock et al (1996) and the periphyton biomass on the PE pipe was expressed as mg BioCOD/mm.…”

Section: Samples and Analysesmentioning

confidence: 99%

Start-up of a spiral periphyton bioreactor (SPR) for removal of COD and the characteristics of the associated microbial community

Shangguan

Liu

Zhu

et al. 2015

Bioresource Technology

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Periphyton-based bioreactors are widely accepted for removing various pollutants from wastewater; however, the slow start-up and low efficiency in widely fluctuating temperatures limit its application. A spiral periphyton bioreactor (SPR) was developed and its COD removal capability and the associated microbial communities were investigated. This SPR can be easily backwashed to stimulate periphyton growth and efficiently remove COD at temperatures ranging from 4 to 30 °C. The species richness and evenness of the periphyton community increased during domestication, while its functional diversity and organic carbon metabolic vitality were higher after 30 days domestication. Cyanobacteria were the main components of the SPR and produced an aerobic environment, while Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria and Sphingobacteria were the microorganisms responsible for COD removal. This study provides valuable insights into changes in pivotal microorganisms of the periphyton community during domestication, and indicates that SPR is simple to operate and efficient in COD removal.

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Section: Samples and Analysesmentioning

confidence: 99%

Start-up of a spiral periphyton bioreactor (SPR) for removal of COD and the characteristics of the associated microbial community

Shangguan

Liu

Zhu

et al. 2015

Bioresource Technology

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“…Internal resistance was calculated by employing the polarization slope method as described by Fan (Fan et al, 2008). The COD was analyzed according to the standard method using chromate as the oxidant as described by Bullock et al (1996) and the total COD removal ( COD mg/L) was defined as the difference between the input and output COD values. DO was measured using a portable DO meter (HACH HQ30D, USA).…”

Section: Electrochemical and Chemical Analysismentioning

confidence: 99%

Performance of a microbial fuel cell-based biosensor for online monitoring in an integrated system combining microbial fuel cell and upflow anaerobic sludge bed reactor

Jia

Yang

Wang

et al. 2016

Bioresource Technology

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A hybrid system integrating a microbial fuel cell (MFC)-based biosensor with upflow anaerobic sludge blanket (UASB) was investigated for real-time online monitoring of the internal operation of the UASB reactor. The features concerned were its rapidity and steadiness with a constant operation condition. In addition, the signal feedback mechanism was examined by the relationship between voltage and time point of changed COD concentration. The sensitivity of different concentrations was explored by comparing the signal feedback time point between the voltage and pH. Results showed that the electrical signal feedback was more sensitive than pH and the thresholds of sensitivity were S=3×10(-5)V/(mg/L) and S=8×10(-5)V/(mg/L) in different concentration ranges, respectively. Although only 0.94% of the influent COD was translated into electricity and applied for biosensing, this integrated system indicated great potential without additional COD consumption for real-time monitoring.

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“…The use of COD to determine biomass concentration has been reported by many authors [27][28][29]. Samples were used to determine total chemical oxygen demand (COD T ), another portion was centrifuged (14,000 rpm, 5 min) and filtered through a 0.45 m membrane (Millipore HA) to measure soluble chemical oxygen demand that corresponded to organic substrate (COD S ).…”

Section: Determination Of Organic Substrate Biomass and Ammoniacal Nmentioning

confidence: 99%

About the performance of Sphaerotilus natans to reduce hexavalent chromium in batch and continuous reactors

Caravelli

Zaritzky

2009

Journal of Hazardous Materials

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A solid chemical oxygen demand (COD) method for determining biomass in waste waters

Cited by 41 publications

References 2 publications

Start-up of a spiral periphyton bioreactor (SPR) for removal of COD and the characteristics of the associated microbial community

Start-up of a spiral periphyton bioreactor (SPR) for removal of COD and the characteristics of the associated microbial community

Performance of a microbial fuel cell-based biosensor for online monitoring in an integrated system combining microbial fuel cell and upflow anaerobic sludge bed reactor

About the performance of Sphaerotilus natans to reduce hexavalent chromium in batch and continuous reactors

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