Waste oils

Report to the Congress, Waste Oil Study, Environmental Protection Agency, Washington, D.C., Apr. 1974. 

E. E. Berry, L. P. MacDonald, and D. J. Skinner, E.xpenmentalBurning of Waste Oil as a Fuel in Cement Manufacture, Environment/Canada Report No. EPS 4-WP-75-1, Ottawa, Canada, June 1975. 

N. Suprenant,. Sahagian, and R. HaU, Waste Oil Recovery and Refuse Program Residue Management, GCA/Technological Report No. 

EC poliey is that waste oils from use as lubrieants should be reeyeled or used as fuel as far as possible. Some EC eountries have a more regulated organizational framework for eolleetion and... 

The disposal of waste oils is largely governed in the UK by the EPA 90. Waste oils are a Special Waste covered by Special Waste Regulations. Establishments handling more than 500 litres per annum have a duty to maintain records. There are also requirements for record keeping where waste oils contain toxic impurities and so become Special Waste . 

EEC Directive on the classification, etc. of dangerous substances 73/404/EEC Directive relating to detergents 75/439/EEC Directive on the disposal of waste oils... 

Consider the oil-recycling plant shown in Fig. 3.16. In this plant, two types of waste oil are handled gas oil and lube oil. The two streams are first deashed and demetallized. Next, atmospheric distillation is used to obtain light gases, gas oil, and a heavy product. The heavy product is distilled under vacuum to yield lube oil. Both the gas oil and the lube oil should be further processed to attain desired properties. The gas oil is steam stripped to remove light and sulfur impurities, then hydrotreated. The lube oil is dewaxed/deasphalted using solvent extraction followed by steam stripping. 

Production costs for biodiesel from soybean oil exceeds 2.00 per gal ( 0.53 per 1), compared to 0.55 to 0.65 per gal ( 0.15 to 0.17 per 1) for conventional diesel. The main cost in biodiesel is in the raw material. It takes about 7.7 lb (3.5 kg) of soybean oil valued at about 0.25 per lb (0.36 per kg) to make 1 gal (3.81) of biodiesel. Waste oils, valued at 1 per gal ( 3.79 per 1) or less, have the potential to provide low feedstock cost. However, much waste oil" is currently collected, reprocessed as yellow and white greases, and used for industrial purposes and as an animal feed supplement. Production of biodiesel... 

Steam Generator Produces steam from condensate or boiler feedwater by combustion of waste oil, tars, or off-gas in direct-fired equipment. 

Masurites. Coal mining, low freezing expls, manufd from 1903-11 by Masurite Explosives Co of Youngstown, Ohio. They consisted essentially of Amm nitrate (up to 93%) and waste oils from paint factories, together with certain chemicals to sensitize the mixt Refs 1) W.H. Blumenstein, CA 5,2949 (1911) 2) Van Gelder Schlatter (1927), 702... 

This product is designed to break water-in-oil emulsions, especially for fuel oils, lubricating oils, or waste oils. This emulsion breaker lowers the surface tension of the oil and, because it is immiscible in water, it is not lost when the water is decanted from the oil. 

In regenerating agents for waste oils from washing of mechanical parts, based on sodium silicate and water, salts of alkylphosphates are used as surfactants on account of their good solubility [232]. 

Most important, reliable and no-regrettable measures are two move to renewable energies and energy saving/conservation. The concept of renewable energy is shown in Fig. 2. The trials of developments of new route to solar energies, for example production of polycrystalline silicon is important [9, 10]. The conversion of waste oil to fiiel has also been investigated [11]. The study on coal conversion is also developed to the biomass conversion study. 

The study site, consisting of about 11 contaminated acres belonging to eight property owners, is in a small community midway between Verona and St. Louis, Missouri. Records indicate that on May 20, 1971, a truck driven by an employee of a salvage waste oil company was ticketed for being 950 pounds overweight. The truck was en route from Verona to St. Louis with a load of TCDD-contaminated still... 

Spent antifreeze formulations can be purified before recycling. If antifreeze is kept separate from waste oils, it can be easily treated and recycled into a new product. 

Installation of an ultrafiltration system that recovers 30 kg/d (65 lb/d) of waste oil and purifies 1135 kg/d (2500 lb/d) of alkaline cleaning solution for reuse, which resulted in a reduction of 5-day biochemical oxygen demand (BOD5) loadings to the treatment system of 200 kg/ month (370 lb/month). This avoided the need for installation of additional treatment. 

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