Exhaust, system scrubbers

Fertilizer industry Phosphate fertihzers crushing. Particulates (dust) Exhaust system, scrubber, cyclone. [Pg.2175]

Precautions should be taken to minimize the release of hazardous chemicals to the environment. A fume hood is a safety device and not a waste disposal facility. Therefore, fume hoods should not be used to dispose of volatile hazardous materials—to do so could cause toxic materials to be released. Special ventilation and exhaust systems, scrubbers, filters, or some other control equipment for discharges to the air or chemical sewer systems may be required under some circumstances. [Pg.33]

Metal casting Cfi, HCl, CO, and particulates (dust) Exhaust systems and scrubbers... [Pg.2175]

Asphalt plants Materials handling, storage and classifiers elevators, chutes, vibrating screens Particulates (dust) Wetting exhaust systems with a scrubber or baghouse... [Pg.2175]

Drying rotary oil- or gas-fired Particulates, SO2, NO, VOC, CO, and smoke Proper combustion controls, fuel-oil preheating where required local exhaust system, cyclone and a scrubber or baghouse... [Pg.2175]

Zinc Roasting Sintering Calcining Retorts electric arc Particulates (dust) and SO2 Particulates (dust) and SO2 Zinc oxide fume, particulates, SO2, CO Exhaust system, humidifier, cyclone, scrubber, electrostatic precipitator, and acid plant Exhaust system, humidifier, electrostatic precipitator, and acid plant Exhaust system, baghouse, scrubber or acid plant... [Pg.2177]

Paint and varnish manufacturing Resin manufacturing closed reaction vessel Varnish cooldng-open or closed vessels Solvent thinning Acrolein, other aldehydes and fatty acids (odors), phthalic anhydride (sublimed) Ketones, fatty acids, formic acids, acetic acid, glycerine, acrolein, other aldehydes, phenols and terpenes from tall oils, hydrogen sulfide, alkyl sulfide, butyl mercaptan, and thiofen (odors) Olefins, branched-chain aromatics and ketones (odors), solvents Exhaust systems with scrubbers and fume burners Exhaust system with scrubbers and fume burners close-fitting hoods required for open kettles Exhaust system with fume burners... [Pg.2177]

Rendering plants Feedstock storage and housekeeping Cookers and percolators Grinding Odors SO2, mercaptans, ammonia, odors Particulates (dust) Quick processing, washdown of all concrete surfaces, paving of dirt roads, proper sewer maintenance, enclosure, packed towers Exhaust system, condenser, scrubber, or incinerator Exhaust system and scrubber... [Pg.2177]

RooBng plants (asphalt saturators) Felt or paper saturators spray section, asphalt tank, wet looper Crushed rock or other minerals handling Asphalt vapors and particulates (liquid) Particulates (dust) Exhaust system with high inlet velocity at hoods (3658 m/s [>200 ft/min]) with either scrubbers, baghouses, or two-stage low-voltage electrostatic precipitators Local exhaust system, cyclone or multiple cyclones... [Pg.2177]

Figure 2.102 describes a high-temperature fuel cell system, using a gas fuel and a reformer to produce hydrogen. The fuel treatment controls described in the following subsections include the scrubbers, humidifiers, and reformers. In addition, the controls of the exhaust systems, the inverters, and the required shutdown controls will also be covered. [Pg.267]

Fertilizer industry (chemical) Nitric acid acidulation Superphosphate storage and shipping Ammonium nitrate reactor Prilling tower NO, gaseous fluoride compounds Particulates (dust) nh3, no nh4, no3 Scrubber, addition of urea Exhaust system, cyclone or baghouse Scrubber Proper operation control, scrubbers... [Pg.33]

Copper Roasting S02, particulates, fume Exhaust system, settling chambers, cyclones or scrubbers and electrostatic precipitators for dust and fumes and sulfuric acid plant for S02... [Pg.34]

Calcining Zinc oxide fume, particulates, Exhaust system, baghouse, scrubber or... [Pg.34]

Paint and varnish Resin manufacturing closed reaction Acrolein, other aldehydes and fatty Exhaust systems with scrubbers and... [Pg.34]

Varnish cooking-open or closed vessels Ketones, fatty acids, formic acids, Exhaust system with scrubbers and... [Pg.34]

Cookers and percolators S02, mercaptans, ammonia, odors Exhaust system, condenser, scrubber,... [Pg.34]

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