a tool for drilling/boring into unconsolidated earth materials (soil) consisting of a spiral blade wound around a central stem or shaft that is commonly hollow (hollow-stem auger). Augers commonly are available in flights (sections) that are connected together to advance the depth of the borehole.
the temperature at which a substance will spontaneously ignite. Autoignition temperature is an indicator of thermal stability for petroleum hydrocarbons.
BP is of one of the world's leading energy companies with operations on six continents and in over 100 countries including North and South America, Europe, Asia, Australia, Africa and Russia. BP's key strengths are oil and gas exploration and production; the refining, marketing and supply of petroleum products and the manufacturing and marketing of chemicals. BP supports all its businesses with high quality research and technology. - High visibility retailer with approximately 28,500 sites worldwide - Serves around 14 million customers everyday - Innovative in retail offerings - Market leader of clean fuels Our US Brands Include: BP, ARCO, ampm and Castrol Each brand has its own unique history and heritage and each follows a set of clear and well-defined brand guidelines. The BP Brand BP is a distinctive, global company with an unshakable commitment to human progress. We serve approximately 14 million customers, providing products they need every day. Our products provide the freedom to move, to heat, to innovate. We believe this freedom is inseparable from the responsibility to produce and consume energy in ways that respect both human rights and the natural environment. Every day more than 100,000 employees combine their energy and innovation to build the BP brand. Superior marketing capability is essential to BP’s current and future success and enables the company’s strategy to sustain profitable organic growth. Our marketing strategy keeps us at the forefront of current and new markets and maintains BP’s position as one of the world’s most successful companies. Effective marketing leads to better innovation, closer customer relationships and increased value for all stakeholders. What We Stand For The BP brand encompasses all our people, the products we sell, the technologies we develop and the relationships we build. We have four core values that emphasize everything we do: - Performance Driven - setting global standards - Innovative - delivering breakthrough solutions - Progressive - always looking for a new and better approach - Green - demonstrating environmental leadership and social responsibility The ARCO and ampm Brands are Franchised by BP West Coast Products BP aspires to be one of the world's prominent brands, with a sustainable long term future. This is captured by the phrase ‘beyond petroleum', reflecting our brand positioning today and our goals to respond creatively to the world's future energy needs. BP is "reinventing the energy business." http://www.bp.com/
According to the National Association of Convenience Stores (NACS), the definition of a convenience store is as follows: 1)While building size may vary significantly, typically the size will be less than 5,000 ft; 2)Have off-street parking and/or convenient pedestrian access; 3)Extended hours of operation with many open 24 hours, seven days a week; 4)Stock at least 500 stock keeping units (SKU s); and 5)Product mix includes grocery type items, and also includes items from the following groups: beverages, snacks (including confectionery) and tobacco.
an off-gas posttreatment unit for control of organic compounds. Gas enters the unit and passes over a support material coated with a catalyst (commonly a noble metal such as platinum or rhodium) that promotes oxidation of the organics. Catalytic oxidizers can also be very effective in controlling odors. High moisture content and the presence of chlorine or sulfur compounds can adversely affect the performance of the catalytic oxidizer.
the simultaneous metabolism of two compounds, in which the degradation of the second compound (the secondary substrate) depends on the presence of the first compound (the primary substrate). For example, in the process of degrading methane, some bacteria can degrade hazardous chlorinated solvents that they would otherwise be unable to attack.
a coefficient of proportionality describing the rate at which a fluid (e.g., water or gas) can move through a permeable medium. Conductivity is a function of both the intrinsic permeability of the porous medium and the kinematic viscosity of the fluid which flows through it.
the area around a discharging well where the hydraulic head (potentiometric surface) in the aquifer has been lowered by pumping. In an unconfined aquifer, the cone of depression is a cone-shaped depression in the water table where the media has actually been dewatered.
a fully saturated aquifer overlain by a confining layer. The potentiometric surface (hydraulic head) of the water in a confined aquifer is at an elevation that is equal to or higher than the base of the overlying confining layer. Discharging wells in a confined aquifer lower the potentiometric surface which forms a cone of depression, but the saturated media is not dewatered.
(a) in the case of a contaminant, one that does not degrade and the movement of which is not retarded; is unreactive. (b) in the case of an assumption, one that leads to a worst-case scenario, one that is most protective of human health and the environment.
a type of separator for removal of larger particles from an exhaust gas stream. Gas laden with particulates enters the cyclone and is directed to flow in a spiral causing the entrained particulates to fall out and collect at the bottom. The gas exits near the top of the cyclone.
an empirical relationship between hydraulic gradient and the viscous flow of water in the saturated zone of a porous medium under conditions of laminar flow. The flux of vapors through the voids of the vadose zone can be related to a pressure gradient through the air permeability by Darcy's Law.
the process by which molecules in a single phase equilibrate to a zero concentration gradient by random molecular motion (Brownian motion). The flux of molecules is from regions of high concentration to low concentration and is governed by Fick's Second Law.
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