Respirometry Applications available in Michigan
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Respirometry solutions for composting sector
Respirometry solutions for composting ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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Respirometry solutions for the bioremediation industry
Respirometry solutions for the bioremediation ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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Respirometry solutions for the wastewater industry
Respirometry solutions for the wastewater ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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Respirometry solutions for testing the stability of compost sector
METHOD: A full-scale compost plant was faced with the need to determine the stability of the compost in the active bays during the compost operation. Samples were collected at 24-ft intervals (2 days of operation) through the length of one bay of the in-vessel compost system and placed into sealed glass reactors. Air was recirculated through the compost material using a peristaltic pump. A caustic scrubber was placed in the recirculation line to remove carbon dioxide (Figure 1). The reaction vessels were connected ...
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 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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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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Application of respirometry system for denitrification testing
Anoxic denitrification requires the presence of an organic substrate to serve as an electron donor. This case study shows how respirometry was used to determine the effect of C/N ratio on denitrification rates. Such testing can be used to determine optimum internal recycle rates or supplemental carbon addition to biological denitrification ...
By Respirometer Systems and Applications, LLC (RSA) based in Fayetteville, ARKANSAS (USA).
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Respirometry system for anaerobic toxicity testing
This example shows the results of dosing an anaerobic culture with three concentrations of an industrial cleaning agent followed by respirometric measurement of methane production. The threshold toxic concentration was less than 80 mg/L of product and 600 mg/L produced a 50% decrease in methane production ...
By Respirometer Systems and Applications, LLC (RSA) based in Fayetteville, 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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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 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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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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Respirometry solutions for monitoring treatment plant performance sector
Waste Type: Activated sludge process ...
By Challenge Technology based in Springdale, 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 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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Respirometry solutions for modeling of methane and hydrogen production sector
Waste Type: Synthetic (Ethanol). Objective: To model the methane produced from acetate and from hydrogen in cultures receiving ethanol as an input substrate. The objective was to verify the accuracy of models developed on the basis of substrate ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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Respirometry solutions for chemical production wastewater industry
OUR measurements were made for two waste streams from a chemical production plant. The fingerprint for Waste 1 indicated the presence of three major groups of organic constituents. The first group of readily biodegradable organic constituents is oxidized at maximum kinetic rate through about one hour of contact. Oxidation of a second group of constituents causes the OUR to increase through about 3.5 hours of incubation. This increase in OUR is caused by growth of microorganisms during the oxidation reaction. ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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Analytical Instruments for Wastewater Treatment
Respirometer based on gasometric method for wastewater analysis. In any biological wastewater treatment system, there is a need to define, assess and understand the plant’s performance with regard to the removal of certain contaminants and the response of bacterial activity to inhibitory compounds of interest. The execution of batch activity tests can be useful to study the biodegradability of a given wastewater stream, determine the stoichiometric and kinetic parameters involved in the conversion of a ...
By BPC Instruments AB based in Lund, SWEDEN.
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Respirometry solutions for the soil industry
Respirometry solutions for the soil ...
By Challenge Technology based in Springdale, ARKANSAS (USA).
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