COD monitoring Articles
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Improved UV/O3 method for measuring the chemical oxygen demand
We improved the ultraviolet (UV)/O3-based method for measuring chemical oxygen demand (COD) in water. An on-line COD monitoring device was developed and the UV/O3 method was used to oxidize sample solutions. A model was established by using support vector machines (SVM) algorithm to estimate dissolved oxygen and CO2 in solutions. Based on the measured data by each sensor during the oxidation ...
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Real-Time Organic Loading Monitoring for Municipal Wastewater Treatment
Summary Operational decisions can be difficult to make when incoming wastewater quality fluctuates. Industrial manufacturers can discharge highly concentrated wastewater unexpectedly causing operational problems if not detected. Aside from potential operational problems, shock loading also has the potential to affect regulatory compliance if wastewater cannot be treated properly. Monitoring ...
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Water quality monitoring cod, bod monitoring
Background: Water is one of the most precious resources on earth. It is necessary for human survival, agricultural production and industrial processes. However, water quality can be affected by a variety of factors, including pollution from human activities, natural disasters and climate change. Monitoring the quality of water is essential to ensure its safety for consumption and other uses. In ...
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Dairy Wastewater: Identify and Reduce Product Loss with Real-Time BOD/COD Monitoring
LOST PRODUCT = LOST REVENUE Manufacturers in the food and beverage industry lose significant quantities of product in the production process. In the dairy industry, milk losses are on average 2-3% of total production and can be even higher for ice creams and novelty products. While it seems like a relatively small percentage, these losses can equate to a large volume of product lost every year, ...
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Case Study: Real-time BOD/COD monitoring increases Dairy revenue from product recovery
A dairy plant in Minnesota was reliant on daily BOD and COD grab samples for detection of product loss. This method was inadequate for proper management and the plant required a better solution to meet their needs. Real Tech provided the much-needed real-time information on cream concentration in the wastewater to allow the plant to take action when events or spills occurred and gain an overall ...
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PurPond Aquatic - Case Study
The graph below show the reduction of COD (measure of organic compounds in water) by strains in EnviroDEFENSE® PurPond Aquatic. As the substrate degraded, the % oxygen saturation ...
By JBMbio.com
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Pulp and Paper Article: Improving Wastewater Treatment Processing with Online Monitoring
Wastewater treatment professionals in the Pulp and Paper industry face difficult challenges. Many of the manufacturing processes are heavily reliant on water, resulting in large volumes of wastewater that can contain complex mixtures of organic pollutants, solids, and other chemicals. Wastewater treatment is often necessary to meet environmental effluent discharge permit limits or comply with ...
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Controlling Parameters in Water Analysis
The COD (Chemical Oxygen Demand) is one of most important parameters in water analysis. In Germany as in nearly all European countries tax for indirect discharges is based on the COD. Using the oxygen consumption is reasonable in the case of tax because the delay time of waste water in a treatment plant depends mainly on its biological activity. The oxygen consumption again is a degree of ...
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Degradation of water polluted with used cooking oil by solar photolysis, Fenton and solar photo Fenton
The degradation of used cooking safflower oil aqueous solutions by photolysis, Fenton, and photo Fenton under solar light is reported. The processes were carried out in a photochemical reactor with recirculation. Operating variables such as, pH, oil concentration and molar ratio of [H2O2]:[oil] were investigated to test their effects on the treatment efficiency of Fenton process. Also the iron ...
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Influence of local calibration on the quality of online wet weather discharge monitoring: feedback from five international case studies
This paper reports about experiences gathered from five online monitoring campaigns in the sewer systems of Berlin (Germany), Graz (Austria), Lyon (France) and Bogota (Colombia) using ultraviolet–visible (UV–VIS) spectrometers and turbidimeters. Online probes are useful for the measurement of highly dynamic processes, e.g. combined sewer overflows (CSO), storm events, and river ...
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Results of trials to remove BOD/COD from effluent arising from cellulosic fibre production case study
A man-made natural fibre producer had produced a new high strength, fibrillated cellulosic fibre derived from wood pulp destined for use in garment manufacture. As a result of the IPC authorisation attached to the production of this product it became necessary to establish the biodegradability of various effluent streams leaving the production plant. In order to evaluate the feasibility of ...
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Results of trials to remove BOD/COD from effluent arising from cellulosic fibre production case study
A man-made natural fibre producer had produced a new high strength, fibrillated cellulosic fibre derived from wood pulp destined for use in garment manufacture. As a result of the IPC authorisation attached to the production of this product it became necessary to establish the biodegradability of various effluent streams leaving the production plant. In order to evaluate the feasibility of ...
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42% solids reduction in industrial lagoon system - Case Study
Drylet was tasked with applying its solution to a facility that was experiencing difficulties with breaking down accumulated solids in its wastewater lagoons system, compromising performance. The covered anaerobic lagoons had become walkable as if paved with concrete, while flaring had dropped from 12 to 2 hours daily. Mechanical dredging would have destroyed the established AD ecosystem in the ...
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Ozone Based AOP process for refractory COD reduction in industrial waster water
Introduction In recent years improvements in ozone based advanced oxidation technology efficiencies have lowered capital and operating expenses, improving the viability of the use of ozone as the main oxidant. An investigation into alternatives for refractory COD removal which is economically attractive and do not produce sludge lead to an evaluation of ozone based advanced oxidation processes ...
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Analysis of the impact of the industrial fat, oil and grease (FOG) on a municipal wastewater treatment plant by means Respirometry and microscopic Bioindication
Abstract The main impact that the industrial fat, oil and grease (FOG) could make in a municipal wastewater treatment plant is mainly coming from its slowly biodegradable COD (sbCOD) The wastewater entering in a municipal WWTP tends to include a percentage of slowly biodegradable COD in the range of 35 to 65% of the total COD; but when this percentage surpasses the habitual range, normally it ...
By SURCIS, S.L.
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What is COD in water?
Chemical oxygen demand (COD) is a chemical method to measure the amount of reducing substances that need to be oxidized in a water sample. Oxygen equivalent of substances (usually organic) that can be oxidized by strong oxidants in wastewater, wastewater treatment plant effluent and contaminated water. In the study of river pollution and industrial wastewater properties and the operation and ...
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Optimizing Aeration Rate in Wastewater Treatment
OVERVIEW A significant portion of a wastewater treatment plant’s energy costs are due to aeration operations (~45-75% of the total energy). The required aeration rate of a biological treatment system is determined by three key parameters: incoming organic loading expressed in terms of COD or BOD, dissolved oxygen (DO) concentration maintained in the aeration tank, and the concentration of ...
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Real-Time Bathing Water Quality Monitoring for Total Coliforms Case Study
RS Hydro were contacted to specify and commission a Proteus real-time water quality monitoring system to monitor BOD, COD & Total Coliforms at a marine leisure centre. The client wanted the ability to have real-time or near real-time data from a system so that they could be alerted immediately if it was not safe for people to swim in. The Proteus was provided with BOD, COD, Total Coliforms, ...
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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 & ...
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The best water quality sensor
JXCT provides different kinds of water quality meter, portable water quality detector, multi-parameter water quality analyzer, laboratory water quality detector, water quality sensor, can monitor PH, conductivity, dissolved oxygen, turbidity, residual chlorine, ammonia nitrogen, blue green algae, chlorophyll and other parameters, can be used in aquaculture water, sewage, rivers, lakes, river ...
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