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Xprt Product Applications In Arkansas
202 applications found
Premium
ByKEG Technologies, Inc. based in  Spartanburg, SOUTH CAROLINA (USA)
Measurement of oxygen uptake rates in activated sludge processes is essential to their satisfactory operation. Traditionally, oxygen uptake rates (OUR) have been determined by using a dissolved oxygen probe to measure the change in dissolved oxygen in a BOD bottle. While this method is rapid, it provides only a snapshot of the pattern of oxygen uptake in a treatment plant. Much more can be learned about the operation of a treatment plant by measuring the oxygen uptake rate over a period ranging from one to four ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
Respirometry solutions for the biofuels ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
Sample Type: Mixed liquor solids from an activated sludge process MVLSS = 1320 ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
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 ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
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 ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
A pulp mill was interested in evaluating the impact of increasing organic loading rates on the performance of their activated sludge ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
METHOD: A seed culture from a full-scale anaerobic digester was placed in a number of 200 mL respirometer vessels. A synthetic wastewater having a 20,000 mg COD/L in a nutrient/ mineral/buffer solution was fed daily to each reaction vessel — along with various amounts of the cleaning agent The reactors were operated for a four day test period with measurement of gas production using a CHALLENGE ANR-200 anaerobic ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
Waste Type:Synthetic (Acetic Acid). Objective: To monitor the gas produced by steady-state cultures receiving acetate as the input substrate. Another objective was to verify the consistency of gas production over a period of time as a means of verifying culture stability and test ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
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 ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
Test Setup: A series of dilutions consisting of 50, 75, 100, 125, 150, and 175 mL of test wastewater were added to respective 500 mL respirometer flasks along with nutrients, minerals, and buffers. TCMP was added to eliminate interference from nitrification. Oxygen uptake was measured over a five-day test period using a CHALLENGE AER-200 ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
Method: An industry was discharging wastewater to a municipal sewer and was suspected of causing problems with treatment at the plant. Samples of the industrial wastewater were collected and oxygen uptake for four dilutions was measured using a CHALLENGE AER-200 aerobic/anaerobic respirometer system. Biodegradation kinetic coefficients were determined using the method described by Dang, et. al. (Res. J. of Water Poll. Control Fed., p. 1711, 1989). Results of the oxygen uptake measurements and kinetic analyses are ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
Respirometry solutions for the bioremediation ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
Sodium Hypochlorite. Sodium Hydroxide (Caustic Soda) 20%-50%. Sodium Bisulfite. Hydrochloric Acid. Lime. Chlorine. Soda Ash. Sulfur Dioxide. Sulfuric Acid. Citric Acid. Aluminum Sulfate. ...
ByCarus Group Inc. based in  Peru, ILLINOIS (USA)
Industrial markets around the United States and the world depend on S&L equipment to meet their needs. Systems are pre-engineered and can be customized for various applications. We offer proven designs, lower installation costs, and reduced construction ...
BySmith & Loveless Inc. based in  Lenexa, KANSAS (USA)
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 ...
ByRespirometer Systems and Applications, LLC (RSA) based in  Fayetteville, ARKANSAS (USA)
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. ...
ByChallenge Technology based in  Springdale, ARKANSAS (USA)
Through integration with your ERP and a deep understanding of the regulatory landscape, The WERCS SDS software enables organizations to seamlessly distribute key documents to ensure commerce. We not only provide the functionality, we also provide the technical expertise to deliver it in geographically relevant ...
ByUL Solutions LLC- WERCS Studio based in  Bentonville, ARKANSAS (USA)
The Transportation Wizard module, as well as our robust library of compliance classification rules, allows for a user-friendly and efficient interface that will populate the transportation information required in section 14 of the SDS. Through the wizard mechanism, users can quickly and automatically populate up to 40 various data points, guiding them through a thorough hazard class and packing group determination. By leveraging quarterly updated data, The WERCS software suggests proper shipping names and UN ...
ByUL Solutions LLC- WERCS Studio based in  Bentonville, ARKANSAS (USA)
Transition swiftly and seamlessly from your region's SDS to the Globally Harmonized (GHS) system for classification of chemicals. Our easy-to-use, webbased GHS Wizard makes it simple for your SDS author to ensure labels and data sheets support safe handling and use of hazardous ...
ByUL Solutions LLC- WERCS Studio based in  Bentonville, ARKANSAS (USA)