A Biobarrier Case Study Using a Non-Emulsified Vegetable Oil
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A case study was presented on the use of a vegetable oil biobarrier to remediate chlorinated ethenes at the National Semiconductor site in Santa Clara, California. A 450 foot biobarrier of non-emulsified soybean oil was installed perpendicular to groundwater flow at depths of 15 to 25 feet below ground surface. Monitoring over 20 months showed the biobarrier created optimal reducing conditions downgradient, reducing electron acceptors like oxygen and nitrate while increasing iron(II). Reductive dechlorination of contaminants like TCE and cis-1,2-DCE to ethene was also observed to be active. The $80,000 vegetable oil biobarrier was deemed a successful technology demonstration
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This document summarizes a presentation about converting captured carbon dioxide (CO2) to higher value chemicals and liquid fuels. The presentation discusses:
1) A novel process that combines CO2 with additional carbon sources like flare gas, landfill biogas, and raw natural gas to produce C4+ chemicals and liquid fuels through a thermochemical route.
2) The process has been successfully demonstrated at a 10 L/day scale in Canada and involves converting CO2 and other carbon sources to ketene and diketene intermediates and then to butanols and other C4+ chemicals.
3) A lifecycle analysis was conducted of the process that shows it can reduce CO2 emissions compared to conventional gasoline
Remedition Using Soy Based Aerobic Co-Metabolism for Removal of Chlorinated H...
Presentation from the Nov 2008 Alcoa Forum. Thanks for the upload. Note - the majority of the site work is related to Do Blackert - i updated the pdf to include Dons link information. The rest of the information is from the presentation.
City of Portland Biosolids Presentation
The document discusses Portland's biosolids land application program. It provides information on biosolids criteria including pathogen and pollutant reduction, as well as land application sites. Benefits of biosolids for agriculture are discussed such as increased forage growth and soil nutrient levels. Carbon footprint analysis shows biosolids application results in net carbon sequestration. The city's goals for a new biosolids contract include diversifying sites, reducing costs and fuel usage.
Agro Remed 08
AgroRemed is a patented bioremediation product that uses oil-eating bacteria to clean up petroleum contaminated soils. It is effective with a 1:10 product to oil ratio and reduces TPH levels to accepted standards quickly with only one application. Case studies show AgroRemed successfully reduced TPH levels and removed petroleum contamination and odors from soils at residential, industrial, and transportation sites within a few weeks or months with minimal site disruption.
Nitrogen_Protein Determination of Spirulina Algae.pdf
The document summarizes a study that used a Thermo Scientific FlashSmart Elemental Analyzer to determine the nitrogen and protein content of spirulina algae samples. Spirulina was analyzed using both helium and argon as carrier gases in the analyzer. The results showed comparable nitrogen/protein values between the two gases, with repeatability below 2% RSD as required by official methods. The analyzer was also used to simultaneously determine nitrogen, carbon, hydrogen and sulfur content of additional spirulina samples.
Final Design Presentation
The document describes the design of a pharmaceutical plant to produce the HIV/AIDS drug Stavudine. Key aspects of the design include a three-reactor production process, recycling of solvents to reduce costs and waste, and safety features to protect workers from hazardous chemicals. Economic analysis shows the plant would be profitable, with an internal rate of return of 49.3% and potential to increase annual profits.
Irwa Presentation 2009
The document discusses the use of chlorine dioxide (ClO2) in drinking water applications. It provides an overview of ClO2 generation methods and attributes. ClO2 is an effective disinfectant that does not form regulated disinfection byproducts. It can be generated on-site electrochemically using a single precursor for a pure, reliable and safe product. Case studies show ClO2 improved disinfection and reduced DBPs and odor/taste issues compared to chlorine.
Incorporation of Carbon Footprint Estimates into Remedial Alternatives Evalua...
1) The document compares the carbon footprints of different remedial technologies at two contaminated sites, including continued groundwater extraction and treatment versus in-situ biobarriers for one site, and air sparging versus in-situ bioremediation for another.
2) It finds that in-situ bioremediation technologies generally have lower carbon footprints than technologies relying on groundwater extraction or air sparging.
3) The largest contributors to carbon footprint vary by technology, but generally include electricity usage, production of reagents or treatment materials, and waste disposal. The estimates have high uncertainty around some inputs like vegetable oil and electricity.
Similar to A Biobarrier Case Study Using a Non-Emulsified Vegetable Oil (20)
Team 2_SEM610B_PP Presentation for Cyanobacteria_Final V1
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What is this stuff on my filter, argentina 2009 (nx power lite)
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Vincent Kwasniewski: Stationary Source GHG Emissions from Petroleum Refinery...
Vincent Kwasniewski: Stationary Source GHG Emissions from Petroleum Refinery...
Esterification Bio-oil using Acid Catalyst and Ethanol
Esterification Bio-oil using Acid Catalyst and Ethanol
Lessons learned from injecting liquid activated carbon suspension
Lessons learned from injecting liquid activated carbon suspension
Remedition Using Soy Based Aerobic Co-Metabolism for Removal of Chlorinated H...
Remedition Using Soy Based Aerobic Co-Metabolism for Removal of Chlorinated H...
Nitrogen_Protein Determination of Spirulina Algae.pdf
Nitrogen_Protein Determination of Spirulina Algae.pdf
Incorporation of Carbon Footprint Estimates into Remedial Alternatives Evalua...
Incorporation of Carbon Footprint Estimates into Remedial Alternatives Evalua...
A Biobarrier Case Study Using a Non-Emulsified Vegetable Oil
- 1. A Biobarrier Case Study Using A Non-Emulsified Vegetable Oil Christopher Glenn, P.E. Treadwell & Rollo Wednesday, September 24, 2008 San Diego, California
- 4. Site Map National Semiconductor Site
- 7. CAP18 ® to H 2 Breakdown Vegetable Oil Reagent
- 11. Effect on ORP Monitoring Results