COD analysis Articles

  • Development and application of oxygen demand testing using industrial effluent

    Abstract The purpose of this study is to develop capacity and protocols for oxygen demand testing that can be used for instruction and research within the BioScience Technology program. For application purposes we chose the PeCOD® Analyzer which offers a unique nanotechnology-based approach to Chemical Oxygen Demand (COD) ...


    By MANTECH Inc.

  • Research experiences in microwave-assisted chemical oxygen demand determination

    The conventional COD determination through reflux method, although still much in experimental practice for water and wastewater analysis, is time consuming, complex and prone to a number of errors. A simpler, more rapid, environmentally benign but still precise method would hence be more attractive and is, in point of fact, a pressing need. Contextualised within the concept of Green Chemistry, ...


    By Inderscience Publishers

  • Food & Beverage Industry: Baking Soda - Case Study

    The peCOD method for chemical oxygen demand (COD) analysis is well suited to the baking soda industry since the recovery and purification of sodium bicarbonate for the food and pharmaceutical markets requires a reliable, accurate, and fast measurement of organic matter in the product. To ensure the health and safety of consumers, low COD levels are desirable and the accuracy of analysis is ...


    By MANTECH Inc.

  • Petrochemical Refinery invests in automated COD analysis system utilizing new PeCOD technology (case study)

    Background  A petrochemical refinery has 6 different wastewater sampling points for effective process control. When there is a problem in effluent COD, samples from all 6 points are needed to determine source of the contamination. Once the contamination source is determined, corrective actions are taken. Problem The current COD dichromate test ...


    By MANTECH Inc.

  • What are the differences between Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD)?

    Ask the expert: What are the differences between Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD)? Answer: Both COD and BOD test methods aim to give an indication of the amount of pollution in a water sample. COD is the amount of oxygen required to chemically breakdown the pollutants whereas BOD is the amount of oxygen ...


    By Camlab Limited

  • PeCOD® Case Study #13 Airport De-Icing

    De-icing of aircrafts and airfield pavement is important to ensure the safety of passengers and cargo operators. These operations can have negative environmental impacts, due to the presence of ethylene glycol and propylene glycol, which contribute to high levels of BOD in surface water.  Regulations are in place to ensure that waste from de-icing operations are properly collected and ...


    By MANTECH Inc.

  • A novel and quick method to avoid H2O2 interference on COD measurement in Fenton system by Na2SO3 reduction and O2 oxidation

    Hydrogen peroxide interference on chemical oxygen demand (COD) measurement has been a big problem in the application of the Fenton process. However, there is no simple and effective method available to address this problem, although several methods have been reported in the literature. In this study, a new method has been developed based on Na2SO3 reduction and O2 oxidation, ...


    By IWA Publishing

  • Food & Beverage Industry: Soft Drink - Case Study

    The peCOD (photoelectric Chemical Oxygen Demand) method for COD analysis is well suited to the soft drink industry as it provides plant operators with quick and reliable COD results important for process monitoring and control. Continuous COD monitoring of wastewater can protect production plants by ensuring COD discharge levels meet the acceptable limits, and by detecting product leakage. It can ...


    By MANTECH Inc.

  • Pulp and paper mill operators testing the benefits of simple and fast PeCOD method - Case Study

    A pulp and paper mill in Atlantic Canada is testing the benefits of implementing the PeCOD™ technology at the influent of their secondary treatment.  Since September 2017, operators have run comparative samples for chemical oxygen demand (COD) analysis by photoelectrochemical method (peCOD) and by the conventional dichromate method (CODcr).  The correlation between peCOD and CODcr ...


    By MANTECH Inc.

  • Oxidative degradation of COD in Petrochemical facility using Ozone-based advanced oxidation

    The aim of this study was to investigate the use of ozone-based advanced oxidation processes for the oxidative destruction of COD in a petrochemical facility. Several  AOP experiments were carried out in order to select and optimise the successful treatment option. A LABO3-AOP pilot unit was used where filtered wastewater (COD 1250 ppm) was circulated throughout the AOP reactor and ozone ...


    By ESCO International (EI)

  • COD analysis and BOD prediction in 15 minutes

    Real Time Chemical Oxygen Demand Measurement In this article we review the bloom centre for Sustainability study which outlines applications for the PeCOD® Analyzer in the food and beverage sector. MANTECH’s technology has been implemented at an industrial bakery, winery and brewery to provide real time Chemical Oxygen Demand (COD) analysis and BOD prediction. The ...


    By MANTECH Inc.

  • Nanotechnology Provides Alternative Method to Dichromate Based COD Analysis

    Nanotechnologies hold a lot of promise for improving the world and offering revolutionary advancements over traditional technologies that have not changed for decades, including for water quality analysis. Laboratory staff have known for a long time about the potential negative health impacts associated with Chemical Oxygen Demand (COD) testing using the traditional dichromate method, ...


    By Camlab Limited

  • PeCOD Analyzer Case Study: Landfill Leachate

    The peCOD (photoelectro Chemical Oxygen Demand) method for chemical oxygen demand (COD) analysis is well suited for landfill leachate samples as the rapid results helps provide information on the quality of the groundwater beneath landfills. Regular monitoring of groundwater is essential to ensure that landfill leachate is not entering the environment, as it may contain highly toxic chemicals. ...


    By MANTECH Inc.

  • What is the challenge with the dichromate COD approach and why is an alternative method required?

    Ask The Expert: What is the challenge with the dichromate COD approach and why is an alternative method required? Answer: The traditional COD analysis approach has been used for decades and is based on the use of potassium dichromate, one of the reagents necessary ...


    By Camlab Limited

  • Airport De-Icing Operations and Waste Water - Case Study

    De-icing of aircrafts and airfield pavement is important to ensure the safety of passengers and cargo operators. These operations can have negative environmental impacts, due to the presence of ethylene glycol and propylene glycol, which contribute to high levels of BOD in surface water.  Regulations are in place to ensure that waste from de-icing operations are properly collected and ...


    By MANTECH Inc.

  • Why is Chemical Oxygen Demand (COD) a useful parameter for drinking water analysis?

    Ask the Expert: COD Analysis for Drinking Water Question: Why is Chemical Oxygen Demand (COD) a useful parameter for drinking water analysis? Answer: At very basic level Chemical Oxygen ...


    By Camlab Limited

  • Successful treatment of high azo dye concentration wastewater using combined anaerobic/aerobic granular activated carbon-sequencing batch biofilm reactor (GAC-SBBR): simultaneous adsorption and biodegradation processes

    The application of a granular activated carbon-sequencing batch biofilm reactor (GAC-SBBR) for treatment of wastewater containing 1,000 mg/L Acid Red 18 (AR18) was investigated in this research. The treatment system consisted of a sequencing batch reactor equipped with moving GAC as biofilm support. Each treatment cycle consisted of two successive anaerobic (14 h) and aerobic (8 h) reaction ...


    By IWA Publishing

  • PeCOD correlates COD results in pulp and paper industry

    PeCOD Directly Correlates to Standard Method 5220 A chemical supply company in the pulp and paper industry in the UK has demonstrated the successful correlation between the PeCOD COD (Chemical Oxygen Demand) Analyzer and Standard Method 5220. The standard method uses dichromate, mercury, silver, and sulfuric acid. These reagents are toxic to humans and highly hazardous to the environment. ...


    By MANTECH Inc.

  • Real-time monitoring of membrane bioreactors with 2D-fluorescence data and statistically based models

    The application of membrane bioreactors (MBR) for wastewater treatment is growing worldwide due to their compactness and high effluent quality. However, membrane fouling, mostly associated to biological products, can reduce MBR performance. Therefore, it is important to monitor MBRs as close to real-time as possible to accelerate control actions for maximal biological and membrane performance. ...


    By IWA Publishing

  • What is Chemical Oxygen Demand (COD)?

    Chemical Oxygen Demand (COD) analysis is a measurement of the oxygen-depletion capacity of a water sample contaminated with organic waste matter. Specifically, it measures the equivalent amount of oxygen required to chemically oxidize organic compounds in water. Why Measure COD? COD is used as a general indicator of water quality and is an integral part of all water quality ...


    By MANTECH Inc.

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