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Recycling organic chemical

Recovering and recycling organic compounds make possible some cost savings in the pollution control equipment. Savings may be in raw material costs, which are normally the most significant item of a chemical plant. Solvent recovery is best suited for applications dealing with expensive or easily... [Pg.1254]

In the diverse, complex environment of the subsurface, microbes play a key role in the recycling of chemical building blocks where they interact with water (including dissolved ions), organics, gases, and minerals. The central position that microbes occupy in the balance of these end members is presented in Figure 13.1. [Pg.396]

Of the approximately 40 million tons (36 million metric tons) of sulfuric acid manufactured in the United States per year, about 90% is used in the production of fertilizers and other inorganic chemicals. Much of the remaining 10% of H2SO4 is used by the petroleum, petrochemical, and organic chemicals industries. Much of this latter acid is involved in recycling kinds of processes. As pollution regulations in various countries become more restrictive, spent acid may become a much more attractive raw material than has been the case in the past. [Pg.1573]

Equilibrium Partitioning and Mass Transfer of Organic Chemicals Leached from Recycled Hazardous Waste Materials... [Pg.1]

Figure 1 illustrates the different phases available for organic chemicals in the environment. These may include the original HWM, as well as water, air, soil, and other organic chemicals present in liquid or solid phases. As previously mentioned, the HWM may be recycled-asphalt pavement or shredded tires. Both the HWM and soil can be very complex. HWM may consist of different polymers, rocks and mineral fragments, and various HOPs. Soils consist of different types and amounts of natural organic matter, black carbon, and minerals. As discussed below, carbonaceous materials typically have the greatest affinity for HOPs. [Pg.3]

Bhandari, A. and Xia, K. 2005. Hazardous organic chemicals in biosolids recycled as soil amendments. FJandbook of Environmental Chemistry Vol. 5, Part F 1 217-39. [Pg.241]

While solvent volatility at ambient conditions has little effect on liquid-liquid equilibria [because the pure component vapor pressure cancels out in Equation (10.9)], solvent volatility nonetheless can be important in solvent regeneration, particnlarly if simple or extractive distillation is used to recycle solvent. These techniqnes are commonly nsed in solvent regeneration when extraction is applied to the recovery of many organic chemicals (e.g., acetic acid [34] recovery, which typically involves extractive distillation to regenerate the solvent and prodnce glacial acetic acid). Then the latent heat of vaporization is also an important consideration. Usnally, however, it is desirable to have regeneration withont solvent distillation, as that approach is often inefficient and expensive. [Pg.717]

Raw material used Wool synthetic fibers, chemicals for treating Iron ore, limestone, recycled scrap Inorganic and organic chemicals Chemical substances, e.g., solvents and acids ... [Pg.6]

ORIGIN/INDUSTRY SOURCES/USES used in the production of polyvinyl chloride added to plastics to make them flexible liquid used in vacuum pumps organic chemical industry recycling and processing plastics organic pump fluid... [Pg.256]


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Organic recycling

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