COD analyzer Articles

  • 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.

  • PeCOD® Analyzer oxygen demand analysis for source & treated drinking waters

    MANTECH’s chemical oxygen demand (COD) analyzer is breaking new ground in the science of monitoring source and treated drinking water. In addition to providing 15-minute COD results and biochemical oxygen demand (BOD) estimates, MANTECH’s PeCOD® Analyzer measures natural organic matter (NOM) in raw and treated drinking water. The NOM Analyzer™  — which is the ...


    By MANTECH Inc.

  • PeCOD Case Study – Aluminium Manufacturing

    Bridgnorth Aluminium is a UK-based company that makes high-quality aluminum products for the lithographic industry. Their desire to reduce water consumption and improve process efficiency, led to a 6 figure investment in a new, on-site, effluent treatment plant. Water is used throughout the facility and contributes to substantial costs for handling. Their aim is to reduce water discharge, conform ...


    By MANTECH Inc.

  • BLOOM – Real-Time Monitoring Brief - Case Study

    PeCOD® is a patented technology that can determine COD by measuring photocurrent charges originating from oxidation of the organic contaminants present in a water sample. Three PeCOD® analyzer units were implemented at three different facilities, representative of key food and beverage sub-sectors–a winery, a bakery and a brewery–to undertake “real-time” ...


    By MANTECH Inc.

  • Optimization of Petrochemical Plant using PeCOD - Case Study

    Companies within the petrochemical industry are under constant pressure to improve the efficiency of their processes in order to save costs and maximize profitability. However, the complex nature of petrochemical refinery processes presents a challenge for improving efficiency. Tweaking one process can easily cause upsets in another process, and ensuring there is no contamination between ...


    By MANTECH Inc.

  • Analysis of chemical reaction kinetics of depredating organic pollutants from secondary effluent of wastewater treatment plant in constructed wetlands

    Four subsurface constructed wetlands were built to treat the secondary effluent of a wastewater treatment plant in Tangshan, China. The chemical pollutant indexes of chemical oxygen demand (COD) were analyzed to evaluate the removal efficiency of organic pollutants from the secondary effluent of the wastewater treatment plant. In all cases, the subsurface constructed wetlands were efficient in ...


    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.

  • Chemical components of bleached eucalypt kraft pulp effluent COD and treatment removal efficiency during normal mill operation and maintenance shutdowns

    In order to meet increasingly strict Brazilian COD emissions limits, mills must understand the components that contribute to effluent COD, how these vary between normal mill operation and maintenance shutdowns, and how this variation affects treatment efficiency. To this end, primary and secondary effluents from a Brazilian bleached eucalypt kraft pulp mill activated sludge system were analyzed ...


    By IWA Publishing

  • Non-linear modeling using fuzzy principal component regression for Vidyaranyapuram sewage treatment plant, Mysore – India

    Fuzzy principal component regression (FPCR) is proposed to model the non-linear process of sewage treatment plant (STP) data matrix. The dimension reduction of voluminous data was done by principal component analysis (PCA). The PCA score values were partitioned by fuzzy-c-means (FCM) clustering, and a Takagi–Sugeno–Kang (TSK) fuzzy model was built based on the FCM functions. The ...


    By IWA Publishing

  • Advanced treatment of effluents from an industrial park wastewater treatment plant by ferrous ion activated persulfate oxidation process

    The advanced oxidation technology, ferrous ion (Fe(II)) activated persulfate (PS) producing sulfate radicals, was used for the advanced treatment of effluent from an integrated wastewater treatment plant in a papermaking industrial park. Separate and interactive effects of PS dosage, Fe(II)/PS ratio and initial pH on chemical oxygen demand (COD) removal were analyzed by the response surface ...


    By IWA Publishing

  • 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.

  • Surface Water Case Study – Athabasca Watershed

    Abstract: Surface water samples in the Athabasca watershed are regularly monitored to ensure water safety across the watershed. In this study, chemical oxygen demand (COD) was monitored to evaluate organic matter and to enhance current monitoring programs. Over an eight-month period, MANTECH worked with Environment Canada’s National Laboratory of Environmental Testing (NLET) to ...


    By MANTECH Inc.

  • On-site treatment of domestic wastewater using a small-scale horizontal subsurface flow constructed wetland

    A small-scale horizontal subsurface flow constructed wetland, located in North Greece, was designed and constructed to treat wastewater from a single-family residence. A three-year monitoring program was undertaken to evaluate the performance of this system. The monitoring campaigns were organized every 7 days. Water quality samples were collected at the inlet, at intermediate points (i.e. at the ...


    By IWA Publishing

  • PeCOD® Analyzer 15-minute chemical oxygen demand (C0D) analysis

    The revolutionary PeCOD® Analyzer technology provides Chemical Oxygen Demand results in under 15 minutes in a Simple-Safe-Effective manner. With our mercury and dichromate free chemistry installed in over 20 countries, the PeCOD® Analyzer has delivered successful test monitoring of COD in a variety of environments with our approved and published MOECC method  Through our proprietary ...


    By MANTECH Inc.

  • 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.

  • Incremental sanitation improvement strategy: comparison of options for Hanoi, Vietnam

    Urban sanitation issues should be tackled strategically, and may be addressed effectively when sewerage development is pursued in conjunction with complementary sanitation measures. Five sanitation improvement scenarios employing sewerage, night-soil collection-and-treatment (NSCT) system, and/or septic-tank improvement by annual desludging were analyzed from the perspective of COD loads, total ...


    By IWA Publishing

  • Online Chemical Oxygen Demand for Treatment Optimization - Case Study

    A wide variety of products are made in the chemical and pharmaceutical manufacturing industries, that require large volumes of chemicals, materials, and substances that are used throughout process operations. Waste water from these facilities typically include contaminants, toxins, nutrients, and organic content that presents challenges with regards to treatment. A major UK based chemical ...


    By MANTECH Inc.

  • Photochemical degradation of 4-chlorophenol in the aqueous phase using peroxyacetic acid (PAA)

    The photochemical degradation of 4-chlorophenol (4-CP) using ultraviolet irradiation (UV) of 6, 12 and 18 W with peroxyacetic acid (PAA) was studied in a batch reactor. The objective of this work was to investigate degradation and mineralization of 4-CP by PAA. The degradation efficiency increased with increasing UV input. The degradation process was also pH and initial PAA concentration ...


    By IWA Publishing

  • Differentiation of Mass and Flow Limited Rainfall-Runoff Events for Overland Flow from Small Urban Catchments

    ABSTRACTWater quantity and quality are coupled phenomena in urban rainfall-runoff. These rainfall-runoff quantity and quality relationships have been significantly altered by the built environment and associated anthropogenic activities. Understanding the relationship between quantity and quality of urban overland flow for a given catchment facilitates development of in-situ wet weather control. ...

  • Effect of glucose on enzyme activity and color removal by Trametes versicolor for high strength landfill leachate

    This research was carried out to study the treatment of landfill leachate by immobilized Trametes versicolor BCC 8725. Leachate was collected from Nonthaburi disposal site of Thailand from a pipe as discharged from landfill to the stabilization pond. Batch experiments were conducted to determine the effects of carbon source (glucose) on the biomass growth of fungi and the treatment of leachate in ...


    By IWA Publishing

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