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Micronutrient
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Journal Articles
Journal:
Corrosion
Publisher: NACE International
Corrosion 58 (02).
Paper Number: NACE-02020156
Published: 01 February 2002
... is a micronutrient for the human body, high concentrations in drinking waters leached from distribution system piping may have potential toxic effects. The promulgation of the Lead and Copper Rule by the U.S. Environmental Protection Agency in 1991 led to a reduction in the "action level" of copper to 1.3 mg/L...
Proceedings Papers
Publisher: Petroleum Society of Canada
Paper presented at the Annual Technical Meeting, June 7–10, 1997
Paper Number: PETSOC-97-16
... nutrient supply to maintain optimal growtP. The nutrients are nitrogen, phosphorus, and an inexpensive mix ofother micronutrients. The nnOPAQ process flow is shown in Figure 2. The sulfidic caustic is brought into a mix tank (typical retention nrne is about one hour). Here, the caustic is mixed...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 1992
Paper Number: SPE-24819-MS
... fluid system under investigation here consists of three components: an inorganic nutrient. composed of monoammonium phosphate (9.9%), urea (63.8%), potassium nitrate (13.1%), ammonium nitrate (11.3%), and micronutrients (1.9%); a biocatalyst and a powder of microbes and starch consisting...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Enhanced Oil Recovery Symposium, April 16–21, 1988
Paper Number: SPE-17329-MS
..., the cost of the crosslinking agent during our field tests has run about 15 to 20% of the polymer costs. In contrast to highly toxic CrVI2-5, CrIII is relatively non-toxic and has been reported to be an "essential micronutrient" for humans. CrIII, in low concentrations, is relatively non-toxic to aquatic...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE International Symposium on Oilfield Chemistry, April 11–13, 2011
Paper Number: SPE-141354-MS
... water are being mixed in the NIWR ( Sunde and Torsvik, 2005 ). Hence SRB have both an electron acceptor (sulfate) and electron donor (oil organics) available for their metabolism. (ii) Concentrations of micronutrients essential for SRB growth (e.g. phosphate) may be higher in the NIWR than elsewhere...
Journal Articles
Journal:
Journal of Petroleum Technology
Publisher: Society of Petroleum Engineers (SPE)
J Pet Technol 59 (06): 50–51.
Paper Number: SPE-0607-0050-JPT
Published: 01 June 2007
... organisms, including sulfate-reducing bacteria (SRB). When micronutrients, organic carbon, and sulfate concentra- tions are present above certain thresh- olds and the temperature falls within ranges typically found in the natural environment, a system can support SRB growth and maintenance resulting...
Journal Articles
Journal:
SPE Production & Operations
Publisher: Society of Petroleum Engineers (SPE)
SPE Prod & Oper 32 (02): 208–217.
Paper Number: SPE-152716-PA
Published: 12 May 2017
... of chelates in cleaning, micronutrients, oilfield applications, and food fortification. She holds an MSc degree in chemistry from Utrecht University and a PhD degree in heterogeneous catalysis and surface chemistry from Leiden University. de Wolf holds more than 20 patents and has authored or coauthored more...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
J Can Pet Technol 37 (11): 23–27.
Paper Number: PETSOC-98-11-04
Published: 01 November 1998
...-acetic acid (DTPA) extraction, used to estimate plant available micronutrients by Alberta Agriculture, and the CGSB method referred to earlier, which is used to classi- fy solids and sludges as potentially hazardous materials. The results are shown in Table 3, for the sample with the great- est trace...
Journal Articles
Journal:
SPE Production & Operations
Publisher: Society of Petroleum Engineers (SPE)
SPE Prod & Oper 23 (03): 404–410.
Paper Number: SPE-118735-PA
Published: 14 August 2008
... bacteria (SRB). When micronutrients, organic carbon, and sulfate concentrations are present above certain thresholds and the temperature falls within ranges typically found in the natural environment, then a system can support SRB growth and maintenance resulting in the reduction of sulfate to hydrogen...
Proceedings Papers
Publisher: American Society of Safety Professionals
Paper presented at the ASSE Professional Development Conference and Exposition, June 10–13, 2001
Paper Number: ASSE-01-707
... fractures Reference is made to Alvin Hydes book Accidental Falls for types of injuries resulting from low level falls. A lifetime of indifferent eating habits can promote bone fractures. Osteoporosis is the gradual loss of bone strength due to porosity resulting from deprivation of necessary micronutrients...
Proceedings Papers
Publisher: American Society of Safety Professionals
Paper presented at the ASSE Professional Development Conference and Exposition, June 26–29, 2016
Paper Number: ASSE-16-666
... there are two categories of dietary nutrient: Macronutrients: The calorie sources that fuel our bodies. Micronutrients: The vitamins and minerals our bodies need. Macronutrients: Calories Calories, otherwise known as energy, come from three primary sources within our diets. These are Proteins (4 calories...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
J Can Pet Technol 54 (05): 289–297.
Paper Number: SPE-168163-PA
Published: 30 September 2015
... as a project leader at the AkzoNobel Chelates R&D laboratory (Arnhem, TheNetherlands), with a special focus on the functionality and properties of chelates in cleaning, micronutrients, oilfield applications, and food fortification. She holds an MSc degree in chemistry from Utrecht University and a PhD degree...
Journal Articles
Journal:
SPE Reservoir Engineering
Publisher: Society of Petroleum Engineers (SPE)
SPE Res Eng 5 (03): 346–352.
Paper Number: SPE-19308-PA
Published: 01 August 1990
...), 4 – 7 reported to be carcinogenic, Cr(III) is relatively nontoxic 4 – 7 and has been reported to be an "essential micronutrient "for humans. 4 , 7 At low concentrations, Cr(III) is relatively nontoxic to aquatic life. 7 The acrylamide-ρolymer/Cr(III)-carboxylate gel technology, when...
Proceedings Papers
Paper presented at the Fourth ISOPE Ocean Mining Symposium, September 23–27, 2001
Paper Number: ISOPE-M-01-014
... and sulfur. Micronutrients 3.46 1240-12850 C 5.5 (in water suspension) 0.1 to 300 microns 3 microns, 50 % of sample mass was between 0.7 and 9 microns 36% pyrol usite, 51 % silicates (largely kaolinite), trace quartz Pyrolusite (paramagnetic), Kaolinite (non-magnetic) 6 on the Moh's scale . 2 very high, 26.9...
Journal Articles
Journal:
SPE Production & Operations
Publisher: Society of Petroleum Engineers (SPE)
SPE Prod & Oper 33 (02): 179–195.
Paper Number: SPE-185953-PA
Published: 14 May 2018
... have different applications in various industries. They are used as fertilizers to provide micronutrients for plants, in water treatment to prevent scale formation, and as a heavy-metal detoxification agent in the medicine and food industries. In the oil-and-gas industry, chelating agents have been...
Proceedings Papers
Paper presented at the The Seventh International Offshore and Polar Engineering Conference, May 25–30, 1997
Paper Number: ISOPE-I-97-069
... and major nutrients, particularly phosphorous, are required. Thereafter, much smaller maintenance additions should be sufficient to sustain such growth. Additionally, to further enhance growth, micronutrient additions may also be required or additions of manure or compost.3 The second primary conclusion...
Proceedings Papers
Publisher: American Society of Safety Professionals
Paper presented at the ASSE Professional Development Conference and Exposition, June 12–15, 2011
Paper Number: ASSE-11-605
... of factors including: A global shift in diet towards increased intake of energy-dense foods that are high in fat and sugars but low in vitamins, minerals and other micronutrients; and A trend towards decreased physical activity due to the increasingly sedentary nature of many forms of work, changing...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Latin-American and Caribbean Health, Safety, Environment and Social Responsibility Conference, June 26–27, 2013
Paper Number: SPE-165597-MS
... frequent intake (spaced every 3 hours) of fresh and varied fruits and vegetables throughout the workday. Fruit has a high nutritional value and is a well-balanced source of water, fibers (cellulose), various micronutrients such as vitamins and minerals, fructose (natural fruit sugar), carbohydrates, fats...
Proceedings Papers
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, April 21–23, 1970
Paper Number: OTC-1179-MS
... of the abundant sunshine the year- round. However, the problem of supplying the mineral nutrients and the micronutrients necessary for the initiation of primary production still remained to be solved. Ocean water is, without any doubt, the most abundant resource on the surface of the earth. Deep ocean water...
Proceedings Papers
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2901944-MS
... not reliable proxies for bottom water redox conditions. Elements such as P, Ni, Cu, Zn, and Cd are considered nutrients or micronutrients to primary production and their abundance/enrichment could be indicative of water column productivity. Figure 2 shows the correlation between TOC and concentration of Ni...
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