Norwalk, CT, United States
Norwalk, CT, United States

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Spectro Inc. and Wilks Enterprise | Date: 2011-04-26

Scientific apparatus, namely, spectrometers and parts and fittings therefor; Scientific instruments, namely, electronic analyzers for measuring, testing and detecting contaminants and environmental pollutants.

INFORM - International News on Fats, Oils and Related Materials | Year: 2010

AOCS Technical Services sponsored a meeting of biodiesel experts on May 16, 2010, at the AOCS Annual Meeting & Expo in Phoenix, Arizona, USA, to discuss the development of analytical methods for biodiesel. Steve Howell, Mark-IV Consulting and National Biodiesel Board (NBB) Technical Director, provided an update on activities of the NBB such as boiler and heating oil research, biodiesel stability, biodiesel transport in pipelines, new, faster, and better test methods, and lubricating oil effects with biodiesel. Lisa Clement, Cargill Inc., Wayzata, Minnesota, USA, prepared a brief description of analytical methodologies for sterol glucosides (SG) in biodiesel. Other projects brought before the group included the robustness of the acid number test method for biodiesel, the cold soak filtration test method, and methodologies for monoglycerides.

Pollution Engineering | Year: 2014

Individuals involved in industrial wastewater testing can benefit from the highly regulated petroleum industry's time-tested, field-proven choice of using infrared analyzers to verify their oil in water levels. Infrared analysis provides an alternative to gravimetric tests, which will significantly reduce costs and save time. With the hexane/infrared extraction method, only 50 μl of extract are required for analysis and the sample size can be reduced to 100 ml for a fairly well-mixed waste stream. The hexane/infrared method can take less than 10 minutes. This means quick sample turnaround and less laboratory technician time. Fixed filter infrared analyzers are compact, light weight and be operated from a 12 volt power supply allowing them to be operated from a vehicle. Wastewater effluent testing can be done at the site, making it easier to catch high oil and grease offenders. With an infrared method that uses S-316 or perchloroethylene and a transmission cell, the oil is measured directly in the solvent without evaporation and the volatile hydrocarbons will be retained.

Pollution Engineering | Year: 2012

On-site analytical testing can both help the well operators keep systems operating optimally as well as assure concerned citizens that appropriate environmental efforts are being taken. Onsite oil in water measurements can ensure that the oil/water separation system is removing the oil to the required limits. Infrared oil in water analyzers can be used for testing the amount of oil in wastewater from hydraulic fracturing. The analysis can be done at the well site in less than 15 minutes, thus avoiding the cost and delay of laboratory analysis. Infrared analysis can also be used for TPH in soil if a spill or pond leak occurs to determine the extent of contamination. An added benefit is that the procedure does not require a trained laboratory technician to do the test. An onsite infrared oil and grease measurement provides operators at a well site a useful tool for optimizing treatment procedures, maximizing evaporation pond efficiency, complying with offsite disposal requirements, or for assessing contamination.

ASTM Special Technical Publication | Year: 2011

With recent volatile oil prices and the desire to reduce dependence on foreign oil, the airline industry and military are looking at ways to supplement the fuel supply. Synthetic jet fuel has recently come to the forefront as a possible solution since it has chemical properties and energy density similar to that of petroleum based jet fuel. In order to successfully implement synthetic jet fuels into a fuel supply, it is essential to know the blend ratio of synthetic to standard jet fuel. A portable mid-infrared analyzer was evaluated as a possible tool to analyze the blend ratio. Preliminary results showed that portable mid-infrared analyzers have an accuracy better than 1 % by volume. Both commercial (Jet A) and military spec (JP-8) fuels were blended with different levels of synthetic jet fuel, and calibrations were generated on a portable mid-infrared spectrometer. The mid-infrared spectrometer performed within an acceptable accuracy with both fuels. In addition, it was possible to calibrate using Jet A fuel and predict the synthetic blend ratio on JP-8 fuel, so the calibration was robust enough to compensate for different fuel types. Further studies are underway in order to determine the effects of fuel additives and different synthetic fuel types on infrared analysis. Copyright © 2010 by ASTM International,.

Pollution Engineering | Year: 2013

The article examines how it is important to use an EPA approved method and equipment when analyzing oil and grease in water while out in the field. There are acceptable errors for each method typically expressed in the precision and bias statement for the method. the test includes the silica gel treatment (SGT) to remove the polar organics, the acceptable range is 64 to 132 ppm. Therefore, if the result from a laboratory for a silica gel treated sample is 65 ppm and the alternate method result is 130 ppm, they are within the acceptable range. Sample collection and handling can cause differences for comparative testing. In order to have an objective comparison, the samples should be identical. If there is variability in the waste stream, this can be a difficult task. The old adage that oil and water do not mix holds true for wastewater as well.

Pollution Engineering | Year: 2011

The hexane/IR method for fats, oil, and grease (FOG) analysis can replace the more cumbersome gravimetric procedure (EPA Method 1664) that also used hexane as its extraction solvent. Method 1664 requires 100 mL hexane/L sample for the extraction procedure. The amount of solvent cannot be reduced with this method as the weight of the residual oil would be so low that it would be less accurate for lower levels of oil and grease. With the hexane/IR extraction method, only 50 μm of extract are required for analysis, and the sample size can be reduced to 100 mL for a fairly well-mixed waste stream. The IR method is also a timesaver. The hexane/gravimetric method is time-consuming - taking up to 2 hr before obtaining a final result. IR measurement of FOG levels in water has been used in the petroleum industry worldwide on highly regulated offshore and on-shore oil platforms for well over 30 yr.

Agency: Department of Agriculture | Branch: | Program: SBIR | Phase: Phase I | Award Amount: 80.00K | Year: 2009

Nitrate is an important nutrient for crop production. Soils with excess nitrate amounts and shallow groundwater tables pose a high risk to nitrate leaching into drinking water supplies. A shortage of nitrate decreases agricultural productivity. Measurement of soil nitrate content is a tedious, time consuming, and expensive process. Currently, there are no commercial sensors for in-situ nitrate determination. With measurements in real time and in the field, nitrate application could then be adjusted according to need rather than applied uniformly across a field. The potential benefits of such a system are increased crop yield, a decrease of input costs, and a reduction of the environmental impact. Studies have shown that nitrate content of the soil can be determined by mid infrared analysis. Currently laboratory FTIR's (Fourier Transform Infrared Spectrometers) are very expensive and are not rugged enough for field applications. Initial studies by UC Davis, Jahn and Upadhyaya (2008), with a rugged, portable, filter based mid infrared spectrometer, the Wilks InfraSpec VFA-IR Spectrometer, found the results were good down to 40 ppm nitrate. For the analysis to be of benefit, the system would need to measure down to 10 ppm. This project will support a redesign of the InfraSpec VFA-IR Spectrometer to include a more rugged soil interface, a 5x improvement in sensitivity and a 20% reduction in cost. This system would then be able to interface with existing soil sampling systems to provide on-site nitrate analysis.

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