BOD and COD Removal Applications available in Yemen
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Respirometry solutions for anaerobic biomass activity tests sector
The methane production activity of anaerobic sludges is related to the history of the sludge, the biomass yield from the wastewater the sludge has been treating, the fraction of methanogens, and the presence of toxic ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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Wastewater treatment solutions for textile industry
The Textile industry is a water intensive industry. Rising water costs due to increasing water scarcity and more stringent environmental regulations have lead to textile companies globally to seek advanced, innovative and efficient textile wastewater treatment solutions to assist them to reduce their water footprint, decrease operational cost and maintain regulatory compliance. Therefore, sustainable water quality management and conservation through water reuse strategies are increasingly becoming critical to the ...
By Genesis Water Technologies, Inc. based in Maitland, FLORIDA (USA).
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Oxygen monitoring from aerobic and anaerobic for toxicity test
Toxicity of pure chemicals is assessed using respirometers by adding increasing concentrations to an active culture. The concentration at which oxygen uptake or gas production begins to decrease is known as the “threshold toxicant ...
By Respirometer Systems and Applications, LLC (RSA) based in Fayetteville, ARKANSAS (USA).
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Application of respirometry system for nitrification testing
This case study shows how respirometers can be used to measure the impact of an industrial wastewater on the nitrification reaction in a treatment plant. In this case, samples containing up to 60% wastewater by volume showed evidence of nitrification ...
By Respirometer Systems and Applications, LLC (RSA) based in Fayetteville, ARKANSAS (USA).
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Respirometry System for Aerobic Toxicity Testing
This example shows the results of respirometer tests in which three concentrations of cyanide were added to a aerobic test culture that received phenol as an organic substrate. The threshold toxic concentration of cyanide was 1 ...
By Respirometer Systems and Applications, LLC (RSA) based in Fayetteville, ARKANSAS (USA).
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Respirometry solutions for toxicity testing sector
Waste Type: Complex alcohols. Objective: Certain constituents of the test waste were know to be biodegradable but were suspected of being toxic to aerobic biological processes when present in high concentrations. The objective was then to determine how much waste could be added to an activated sludge process before toxic impacts would be ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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Oxygen monitoring from aerobic and anaerobic for biodegradation tests
Biodegradation tests involve testing samples in response to various parameters: dilution, nutrient addition, pH, temperature, and others. The pattern of oxygen uptake in aerobic tests; nitrogen gas production in anoxic denitrification tests; methane production in methanogenic tests; hydrogen production during glycolysis; and carbon dioxide production during fermentation reactions gives a measure of the rate and extent of biodegradation of the organic constituents of the test ...
By Respirometer Systems and Applications, LLC (RSA) based in Fayetteville, ARKANSAS (USA).
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Oxygen monitoring from aerobic and anaerobic for biomass activity tests
Pulse-Flow respirometers can be used to assess biomass activity for aerobic and anaerobic reactions. In aerobic tests, cultures are combined with nutrients, trace minerals, and an organic substrate – such as acetic acid or ethanol. The maximum oxygen uptake rate reflects the amount of active biomass in the test ...
By Respirometer Systems and Applications, LLC (RSA) based in Fayetteville, ARKANSAS (USA).
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Respirometry solutions for monitoring the activity of mixed-liquor solids sector
Sample Type: Mixed liquor solids from an activated sludge process MVLSS = 1320 ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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Respirometry solutions for pharmaceutical wastewater industry
A pharmaceutical company was interested in knowing whether a specific component, MCB, inhibited the biodegradation of other wastewater constituents. A series of respirometer tests was set up using identical mixtures of wastewater and return activated sludge (RAS) plus varying amounts of MCB. The OUR fingerprint of this wastewater includes a first peak of about 500 mg/L-hr within the first hour of contact that represents the oxidation of highly-biodegradable organic constituents. A second group of readily ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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Respirometry System for Biomass Activity Testing
Pulse-Flow respirometers can be used to assess biomass activity for aerobic and anaerobic reactions. In aerobic tests, cultures are combined with nutrients, trace minerals, and an organic substrate – such as acetic acid or ethanol. The maximum oxygen uptake rate reflects the amount of active biomass in the test culture. Examples are shown ...
By Respirometer Systems and Applications, LLC (RSA) based in Fayetteville, ARKANSAS (USA).
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Respirometry solutions for industrial waste treatability industry
Test Setup: 40 and 60 mL of wastewater were added to individual respirometer flasks each containing nutrient/mineral/buffer medium to form two different dilutions. TCMP was added to inhibit nitrification. 25 mL of seed from a laboratory scale reactor was added to each test reactor. Oxygen uptake was monitored using a CHALLENGE AER-200 respirometer for five days. A second dose of 40 and 60 mL of leachate sample was then added to each reactor and oxygen uptake was measured for another 5 ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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Wastewater solutions for the industrial effluent pollution management
Problem: Industrial manufacturers face stringent regulations for discharging wastewater to the environment and municipal sewer systems. Biochemical Oxygen Demand (BOD) is a primary concern for many discharge limits, as wastewaters high in BOD can have adverse impacts on the aquatic environments by leading to oxygen depletion. In some cases, as a means to supplement BOD, it is also desirable to monitor chemical oxygen demand (COD) of industrial effluents. Both of these tests, are time and labour intensive reducing ...
By Real Tech Inc. based in Whitby, ONTARIO (CANADA).
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Analytical Instruments for Biodegradability & Compostability
Instrument for biodegradability analyses. The degradation of biodegradable polymers and biodegradable plastics crucially depends on the environments they may end up in, such as soil, fresh or marine water, landfill or composting site. Owing to the great variations in natural conditions, several tests are needed to determine the fate of a polymer material in real life and to study its biodegradability in different environments. In aerobic environments, the biodegradability is usually determined by measuring ...
By BPC Instruments AB based in Lund, SWEDEN.
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Respirometry system for determination of biodegradation kenetics
Intrinsic kinetic tests involve adding relatively high concentrations of organic substrate to small concentrations of acclimated microorganisms so that the COD/VSS ratio typically is greater than 10. Kinetic parameters are then determined by non-linear modeling using well-known relationships between biological growth and oxygen ...
By Respirometer Systems and Applications, LLC (RSA) based in Fayetteville, ARKANSAS (USA).
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Water quality monitoring for textile industry
Wastewater from a textile facility contains a variety of dyes and organic chemicals from the manufacturing processes that are often difficult to treat. Spectral analysis is well suited for monitoring waste streams to identify problematic dyes prior to treatment. Continuous monitoring of effluent wastewater for BOD and COD helps to ensure effective treatment and quality of effluent to ensure regulatory goals are met prior to ...
By Real Tech Inc. based in Whitby, ONTARIO (CANADA).
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Determination of the chemical oxygen demand (COD) in water
Introduction Chemical Oxygen Demand (COD) is one of the most common integral indicators of anthropogenic pollution of water bodies. COD is widely used in the analysis of natural water, to control wastewater treatment from organic various substances. ...
By Lumex Instruments based in Mission, BRITISH COLUMBIA (CANADA).
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AER-200 respirometer system for anaerobic applications sector
The CHALLENGE AER-200 Respirometer System consists of one or more biological reaction vessels, gas flow measuring cells, and a computer. The gas measuring base contains eight flow ceHs and associated interconnecting circuitry. As gas flows through each cell under the influence of a slight pressure caused by gas production in the reaction vessel, bubbles of a fixed volume are formed in the lower section of the cell. These bubbles in turn pass through a detection section where a counter is activated. Finally, the ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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Hand-Held & Process Control Water Testing Instrument for Environmental Industry
Keeping the water in our lakes, rivers, and streams clean requires monitoring of water quality at many points as it gradually makes its way from its source to our oceans. Over the years ever increasing environmental concerns and regulations have heightened the need for increased diligence and tighter restrictions on wastewater quality. Control of water pollution was once concerned mainly with treating wastewater before it was discharged from a manufacturing facility into the nation's waterways. Today, in many ...
By Myron L Company based in Carlsbad, CALIFORNIA (USA).
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Wastewater Monitoring for Dairy Industry - Real-time BOD, COD, TSS
In industrial operations, a significant quantity of product can be lost into the waste stream. The reason for the product loss can vary from leaky or faulty valves, to vessels overflowing, or to operator errors. Washing processes also create unavoidable product loss. Most of these losses are not large spills and it may take a while for the operators to detect them. In fact, frequent small losses can account for more than 50% of total losses. Significant benefits can be derived from continuous water quality ...
By Real Tech Inc. based in Whitby, ONTARIO (CANADA).
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