Big Chemical Encyclopedia

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

Articles Figures Tables About

Spill containment system

Are there truck facilities and do they have spill containment systems ... [Pg.127]

Pressure storage vessels should not be located within buildings, or within the spill containment systems (diked enclosures or remote retention basins) of other storage. [Pg.229]

Secondary containment systems are best described as passive protective systems. They do not eliminate or prevent a spill or leak, but they can significantly moderate the impact without the need for any active device. Also, containment systems can be defeated by manual or active design features. For example, a dike may have a drain valve to remove rain water, and the valve could be left open. A door in a containment building could be left open. [Pg.45]

Mitigating events or mitigating factors act to impede the accident sequence, resulting in less severe consequences. Examples include detection and activation of emergency shutdown systems, operator intervention, spill containment, equipment spacing, natural dispersion, and reducing the... [Pg.87]

Transfer facilities, processors and rerefiners, and burners must also have secondary containment systems to prevent oil from reaching the environment in the event of a spill or leak. Secondary containment consists of an oil-impervious dike, berm, or retaining wall to contain releases, as well as an oil-impervious floor to prevent migration. [Pg.444]

Mitigation measures can also be passive safeguards, meaning that they require no human intervention and no engineered sensing and actuation system to work. Examples of passive mitigation measures are secondary containment systems, blast-resistant and fire-resistant structures, insulated or low-heat-capacity spill surfaces to reduce the rate of evaporation, and an increased distance between the hazardous materials and energies and the sensitive receptors. [Pg.102]

A passive fire protection system requires no action to occur for it to function per its design intent. Examples of passive fire protection methods are fireproofing, spill containment, and physical separation of units and buildings. [Pg.18]

For example, if LPG vessels are considered to be within a fire-scenario envelope, they require fireproofing unless protected by a fixed water spray system. API Standard 2510, Design and Construction of Liquefied Petroleum Gas Installations (API, 2001) recommends fireproofing pipe supports within 50 ft (15 m) of the LPG vessel, or within the spill containment area. [Pg.145]

Local containment systems within process structures or areas are intended to retain spills released from process systems within the immediate area of their release. Containment systems are passive mitigation systems usually employed to prevent the spread of spills and releases of flammable or combustible liquids and other materials. Local containment systems are also used for controlling spills of powders or dusts and for molten materials that solidify at ambient temperatures. Containment systems are commonly used to ... [Pg.154]

By design, local containment systems hold the spilled or released material within the process structure or area. Hence, the structure, equipment, vessels, and piping will be exposed to any fire resulting from the contained material and will require fire protection. [Pg.155]

Containment systems are typically designed with solid, impermeable floors with perimeter curbing, dikes, berms, or walls to contain the released material within the area of the release. The containment should be designed such that a flammable spill and fire water runoff flow away from and do not collect under process equipment. Concrete is commonly used, but other materials may also be appropriate. This containment zone may include the ground floor of a process structure or a portion (one or more bays) of a structure. Local containment may also be used on upper levels of a structure or in a building around specific equipment with identified potential for spills or releases. [Pg.155]

Containment systems should be designed to contain a volume equal to the largest probable rapid process spill, release, or leak. Curb height should be calculated based on the depth of this maximum probable spill over the containment area plus a minimum freeboard allowance of 2 in (5 cm) the minimum recommended curb height is 4 in (10 cm). The containment volume should include an allowance for a probable quantity of firefighting water, assumed to be 10-20 minutes minimum. After this period, local containment will not be effective and an alternative means of protection should be provided. [Pg.155]

Local containment is a passive mitigation system intended to retain liquid spills or releases from process systems within the immediate area of the release. Local containment may be appropriate where the quantity of potential flammable or combustible liquid spills is well defined and small to moderate. Where larger quantities of liquids are involved, e.g. continuous process operations, local containment alone is usually not an appropriate design. Containment systems are commonly used for the following purposes ... [Pg.238]

Spill containment is required around the marine vessel during loading and unloadingto prevent the spread of an accidental release. Means should be provided to manage small spills that may occur during transfer arm or hose system connection, disconnection or draining. [Pg.319]

Impoundment or containment systems are installed under and around tanks to contain any spills from that tank. Dikes are a typical example. [Pg.151]

Since the purpose of diking is to contain a spilled fluid effectively while reducing the vapor generation rate, a secondary containment system that will be impervious to the fluid must be provided. It should also have favorable thermal properties to retard the boiloff rate. [Pg.93]

Because there are no reasonable methods for mitigating risk following the occurrence of a BLEVE, all practical measures should be taken to prevent the causes of a BLEVE. This could include fixed water-spray systems over process vessels containing flammable liquids or which could be exposed to flammable-liquid fire, ensuring that relief devices do not direct vented flammable vapors onto the container, systems for diverting spilled flammable liquid to locations that would not expose process vessels, and pubhc-address systems to warn persons to evacuate locations where loss of process control could lead to a BLEVE [14]. [Pg.1456]

Just as the bicarbonate buffer system stabilizes natural waters to a significant extent against radical changes In pH, It Is possible that humic substances In natural waters buffer within a narrow range of redox potential, and also subject contaminants to photolytlc processes If they have an below that of humic substances. This conjecture Is supported by photochemical studies of oil spills containing polyaromatic hydrocarbons, which are degradable mainly by photolytlc processes In field studies (34). [Pg.154]

Toxic scrubbers on building vents Spill containment Facility siting and/or layout Condition monitoring Construction material change Emergency feed stops Improved fire suppression systems... [Pg.672]

The final section of the Executive Summary will identify any general conclusions that can be drawn from the study. For example, the report may note that many of the findings were to do with the possibility of spills leading to contaminated groundwater. Therefore, a general finding may be that an overall improvement to the facility s secondary containment system should be made. [Pg.223]

Liquid effluent is collected in the drums, while gaseous overpressure is vented through a silica gel/ASZM-TEDA carbon filter. The waste handling system includes secondary spill containment for the drums, scales to measure liquid content, and pressure relief rupture disks. [Pg.73]

In the case of chemical spills due to process upsets, particularly fire and explosion, the chemical spillage on-site may be extensive and the water used on the fire can become contaminated with one or more process chemicals. Containment for fire water mnoff should be planned for all manufacturing plants at the design stage. Containment volume should also be provided on-site to ensure that no contaminated water leaves the site after a small or a major incident. Such water should not be flushed into a ditch, sewer, or drain or off the road since this would spread the chemical farther. The key feature of a well-designed chemical spill or contaminated water containment system is the ability to pump the spilled liquid into recovery containers for treatment. These large containers of contaminated liquid can then be treated by the conventional adsorption contacting systems as described in Section 15.3. [Pg.339]

Spill Containment. The chemical spill should be contained as much as possible on the site where the spill occurs. The spilled chemical must be prevented from entering storm drains, wells, ditches, streams, rivers, or other water systems. This may involve repositioning the leaking container or applying a seal to the leak from the repair/patch kit, or separating the... [Pg.342]


See other pages where Spill containment system is mentioned: [Pg.34]    [Pg.34]    [Pg.2341]    [Pg.85]    [Pg.881]    [Pg.214]    [Pg.104]    [Pg.243]    [Pg.321]    [Pg.7]    [Pg.117]    [Pg.122]    [Pg.33]    [Pg.2096]    [Pg.81]    [Pg.114]    [Pg.254]    [Pg.85]    [Pg.275]    [Pg.1388]   
See also in sourсe #XX -- [ Pg.34 ]




SEARCH



Containment system

Spill

Spill containment

System containing

© 2024 chempedia.info