Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

TREAT program

A castor meal treating program for simultaneous detoxification and deaHergenation led to the development of a process to detoxify the meal by heat and moisture and to deaHergenate by chemical and water treatment utilizing expander/extmder processing techniques (14). This detoxified and deaHergenated castor meal is safe to use as feed for animals (see Feeds and feed additives). [Pg.152]

If this is the case, a change in the treating program is necessary Significant changes in emulsion characteristics occur rather infrequently and... [Pg.138]

These subroutines are capable of treating multicomponent systems with up to 20 components. For compatibility with diverse, user-written main programs, they employ vectors of length N, where N ( 20) is the number of components involved, in their argument lists. [Pg.318]

An overview of docking programs is given in Tabic 10.4-3. Depending on the way the conformational flexibility of the ligand is treated, docking can be either rigid or flexible. [Pg.609]

Semiempirical programs often use the half-electron approximation for radical calculations. The half-electron method is a mathematical technique for treating a singly occupied orbital in an RHF calculation. This results in consistent total energy at the expense of having an approximate wave function and orbital energies. Since a single-determinant calculation is used, there is no spin contamination. [Pg.229]

Combined Quantum and Molecular Mechanical Simulations. A recentiy developed technique is one wherein a molecular dynamics simulation includes the treatment of some part of the system with a quantum mechanical technique. This approach, QM/MM, is similar to the coupled quantum and molecular mechanical methods introduced by Warshel and Karplus (45) and at the heart of the MMI, MMP2, and MM3 programs by AUinger (60). These latter programs use quantum mechanical methods to treat the TT-systems of the stmctures in question separately from the sigma framework. [Pg.167]

Spent fuel can be stored or disposed of intact, in a once-through mode of operation, practiced by the U.S. commercial nuclear power industry. Alternatively, spent fuel can be reprocessed, ie, treated to separate the uranium, plutonium, and fission products, for re-use of the fuels (see Nuclear REACTORS, CHEMICAL reprocessing). In the United States reprocessing is carried out only for fuel from naval reactors. In the nuclear programs of some other countries, especially France and Japan, reprocessing is routine. [Pg.228]

Water Quality. AH commercial oil shale operations require substantial quantities of water. AH product water is treated for use and operations are permitted as zero-discharge facHities. In the Unocal operation, no accidental releases of surface water have occurred during the last four years of sustained operations from 1986 to 1990. The Unocal Parachute Creek Project compliance monitoring program of ground water, surface water, and process water streams have indicated no adverse water quaHty impacts and no violations of the Colorado Department of Health standards (62). [Pg.355]

Oxygen is used to treat municipal wastewater and wastewater from the pulp and paper industry (see Aeration, water treatment Wastes, industrial Water). Many of these water appHcations can use VSA-produced oxygen (advantage /). Demonstration and development programs are in place that use oxygen to oxidize sludge from municipal waste and bum hazardous wastes and used tires (advantages 1—4). [Pg.482]

Medical Programs. Large chemical plants have at least one hill-time physician who is at the plant five days a week and on call at all other times. Smaller plants either have part-time physicians or take injured employees to a nearby hospital or clinic by arrangement with the company compensation-insurance carrier. When part-time physicians or outside medical services are used, there is Httle opportunity for medical personnel to become familiar with plant operations or to assist in improving the health aspects of plant work. Therefore, it is essential that chemical-ha2ards manuals and procedures, which highlight symptoms and methods of treatment, be developed. A hill-time industrial physician should devote a substantial amount of time to becoming familiar with the plant, its processes, and the materials employed. Such education enables the physician to be better prepared to treat injuries and illnesses and to advise on preventive measures. [Pg.101]

Cehte or firebrick packing for glc columns is often treated with TMCS, DMCS, or other volatile silylating agents (see Table 1) to reduce tailing by polar organic compounds. A chemically bonded methyl siUcone support is stable for temperature programming to 390°C and allows elution of hydrocarbons up to C q (20). [Pg.72]

A comprehensive analytical program for characterising wastewaters should be based on relevance to unit treatment process operations, the poUutant or pollutants to be removed ia each, and effluent quality constraints. The qualitative and quantitative characteristics of waste streams to be treated not only serve as a basis for sising system processes within the facility, but also iadicate streams having refractory constituents, potential toxicants, or biostats. Such streams are not amenable to effective biological treatment, as iadicated by the characterization results, and requite treatment usiag alternative processes. [Pg.177]

Obesity is a difficult condition to treat. Dietary restriction of caloric intake is the first line therapy and is optimally combined with an exercise program to promote loss of fat relative to lean body mass (17). For the grossly obese (BMI > 40), invasive mechanical measures such as jaw wiring, gastric banding, and gastric by-pass have been attempted with at least limited success (18). [Pg.215]

Practical considerations enter into the experimental plan in various other ways. In many programs, variables are introduced at different operational levels. For example, in evaluating the effect of alloy composition, oven temperature, and varnish coat on tensile strength, it may be convenient to make a number of master alloys with each composition, spHt the alloys into separate parts to be subjected to different heat treatments, and then cut the treated samples into subsamples to which different coatings are appHed. Tensile strength measurements are then obtained on all coated subsamples. [Pg.521]

Environment Treated cooling water, alkaline program, pH 8.5-9.5, 50-105°F (10 0°C), total hardness 150 ppm, chlorides 70 ppm, calcium 90 ppm... [Pg.367]


See other pages where TREAT program is mentioned: [Pg.138]    [Pg.243]    [Pg.321]    [Pg.331]    [Pg.203]    [Pg.64]    [Pg.292]    [Pg.138]    [Pg.243]    [Pg.321]    [Pg.331]    [Pg.203]    [Pg.64]    [Pg.292]    [Pg.289]    [Pg.157]    [Pg.2108]    [Pg.2174]    [Pg.41]    [Pg.577]    [Pg.479]    [Pg.678]    [Pg.45]    [Pg.289]    [Pg.474]    [Pg.167]    [Pg.410]    [Pg.268]    [Pg.45]    [Pg.57]    [Pg.119]    [Pg.257]    [Pg.91]    [Pg.91]    [Pg.509]    [Pg.78]    [Pg.12]    [Pg.222]    [Pg.398]    [Pg.452]    [Pg.2]   
See also in sourсe #XX -- [ Pg.292 ]




SEARCH



© 2024 chempedia.info