Big Chemical Encyclopedia

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

Articles Figures Tables About

Spray additive tank

The CSS achieves the above objectives by spraying a sodium hydroxide solution of borated water throughout a large volume portion of the containment atmosphere. The system consists of a containment spray storage tank (CSST), a spray additive tank (SAT), two... [Pg.54]

Vandellos II PWR W 1988 2785 Dry 62578 - two trains Each train with flow capability of 3120 gpm In the Injection phase and 3500 gpm In the recirculation phase. - Spray Additive System - one tank containing 4850 gallons of solution of NaOH with concentration of 30 weight %. Active Carbon Filters Efficiency 95-99% none... [Pg.89]

Spray. In spray-on appHcations the reactive iagredients are impingement mixed at the spray head. Thickness of the foam is controlled by the amount appHed per unit area and additional coats are used if greater than 2.5 cm (1.0 ia.) thickness is required. This method is commonly used for coating iadustrial roofs or iasulatiag tanks and pipes. [Pg.419]

The hand lay-up or spray-up process, used universally for the production of laminar composites incorporating glass fiber reinforcement, is most efficient for the manufacture of large parts, such as boats, bathtubs, tanks, architectural shapes, and recreational accessories. Resins intended for spray-up processes are usually modified with thixotropic additives, such as fumed siHca (1%), to reduce the risk of drainage when appHed over large vertical mold surfaces. Molds are also made from ERP for short-mn products usually surfaced with a tooling gel coat to provide consistent surface quaHty and appearance. [Pg.322]

A solution of sulfur trioxide [7446-11-9] dissolved in chlorosulfonic acid [7990-94-5] CISO H, has been used as a smoke (U.S. designation FS) but it is not a U.S. standard agent (see Chlorosulfuric acid Sulfuric acid and sulfur trioxide). When FS is atomized in air, the sulfur trioxide evaporates from the small droplets and reacts with atmospheric moisture to form sulfuric acid vapor. This vapor condenses into minute droplets that form a dense white cloud. FS produces its effect almost instantaneously upon mechanical atomization into the atmosphere, except at very low temperatures. At such temperatures, the small amount of moisture normally present in the atmosphere, requires that FS be thermally generated with the addition of steam to be effective. FS can be used as a fill for artillery and mortar shells and bombs and can be effectively dispersed from low performance aircraft spray tanks. FS is both corrosive and toxic in the presence of moisture, which imposes limitations on its storage, handling, and use. [Pg.402]

Additional information regarding applicator-boom width, spray-tank capacity, and the wheelbase of any vehicle-mounted soil sampling equipment used during the study is also required to ensure that the field plot design accommodates size restrictions of field equipment. [Pg.853]

The pulp and paper additives enter the process first through a dump chest in their concentrated form. Adjustments are then made to the concentration in the stock chest just prior to transfer onto the Fourdrinier wire where the paper sheet is produced. Surface additives are sprayed after sheet formation and the final sheet is dried at high temperatures in dryers. The water from the wire is removed into underground tanks and in most cases, recirculated and reused. [Pg.20]

Apples. The Rome Beauty apples used in the wash tests were sampled from trees that had received varying amounts of DDT mixtures in as many as six cover sprays. Duplicate or triplicate samples of 30 apples each were taken at random for the residue analyses from the fruit passed through each experimental wash mixture. Additional lots of 30 washed apples each were placed in cold storage for subsequent examinations. Unless otherwise indicated, all washing tests were run in a flood-type washer of recent design (a BADD washer with a heated prewash tank unit, an unheated main tank unit, a water rinse tank unit, and a velour roller dryer unit, manufactured by the Bean-Cutler Division, Food Machinery Corporation, San Jose, Calif.). Surface deposits of DDT were determined as described (10, 12) on samples taken just before and immediately after the washing treatments. [Pg.138]

A 10-yd3 soil sample was excavated from the site, blended, and characterized for initial hydrocarbon content and nutrient content. The reactor was filled with soil compacted to field density (Figure 12.10). The tank at the bottom was filled with water nutrients and surfactants. Water from this tank was sprayed over the top of the soil at a rate that maintained aerobic conditions. A significant amount of LNAPL was initially released from the soil, which required additional air to be pumped into the well points to maintain favorable growth conditions. After 105 days of operation, more than 87% of the total aliphatics and 89% of the total aromatics were removed. [Pg.363]

The preparation involves introduction of liquid and/or powdered additives into powdered basic material. Liquid additives may be introduced into separate tanks beforehand (periodically or continuously) or the material may be passed through a chamber in which the liquid is sprayed. Powdered additives may be introduced in periodic or continuous mixers. [Pg.144]

The Neutralization Module accepts the ton container contents from the TCC module and destroys the agent batchwise through hydrolysis with water followed by caustic addition. The Neutralization Module consists of three units, each located inside a Containment Level A toxic cubicle. There are two HD Reactors and one TCC Effluent Tank in each of the three neutralization units. In each neutralization unit, drained agent held in the Agent Holding Tank is processed in batch neutralization reactions. The rinse and spray water from the TCC Module and spent decontamination solution are stored in the TCC Effluent Tank and process in separate batch reactions. In the neutralization reaction HD reacts with water to yield the principal hydrolysis products of thiodiglycol and hydrochloric acid. After the hydrolysis is complete and sample analysis results confirm the destruction of HD, 18 percent sodium hydroxide is added to the reactor to raise pH in order to increase the hydrolysate biodegradability. The hydrolysate is then pumped to the Hydrolysate Tank in the VOC Treatment Module. [Pg.47]


See other pages where Spray additive tank is mentioned: [Pg.961]    [Pg.1085]    [Pg.15]    [Pg.48]    [Pg.55]    [Pg.220]    [Pg.442]    [Pg.109]    [Pg.139]    [Pg.165]    [Pg.2289]    [Pg.210]    [Pg.253]    [Pg.435]    [Pg.426]    [Pg.644]    [Pg.647]    [Pg.362]    [Pg.386]    [Pg.109]    [Pg.1518]    [Pg.241]    [Pg.75]    [Pg.212]    [Pg.74]    [Pg.39]    [Pg.112]    [Pg.286]    [Pg.193]    [Pg.215]    [Pg.27]    [Pg.88]    [Pg.709]    [Pg.60]    [Pg.165]    [Pg.131]    [Pg.153]    [Pg.61]   
See also in sourсe #XX -- [ Pg.54 ]




SEARCH



Addition spraying

© 2024 chempedia.info