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Extended aeration

Gaudy AF, Gaudy ET, Feng YJ, et al. 1982. Treatment of cyanide waste by the extended aeration process. J Water Pollut Control Fed 54 153-164. [Pg.251]

JOHNSTONE, D.W.M. (1984). Oxygen requirements, energy consumption and sludge production in extended aeration plants. Water Pollut. Control 83, 100-115. [Pg.306]

The activated sludge process including multiple-stage, extended aeration, the Unox pure oxygen system, aerated ponds, and other variations. [Pg.178]

The performance of the ASP has been found to be more efficient when operating on an extended aeration basis. The design parameters of the process were evaluated for the treatment of combined wastewater from a pharmaceutical and chemical company in North Cairo that produced drugs, diuretics, laboratory chemicals, and so on [49]. The study revealed that at an extended aeration period of 20 hours, COD and BOD removal efficiency ranges of 89-95% and 88-98%, respectively, can be achieved. The COD and BOD values of the treated effluent were found to be 74 mg/L and 43 mg/L, respectively. [Pg.184]

Figure 4 Flow diagram for treatment process using activated sludge, extended aeration. Figure 4 Flow diagram for treatment process using activated sludge, extended aeration.
An extended aeration activated sludge process is designed to treat 2000 m day of condensate waste generated from a synthetic organic chemical plant. The system is operating at an organic... [Pg.213]

Design an extended aeration process for the treatment of 1275 m3/day of pharmaceutical wastewater with a BOD5 of 3500 mg/L. Assume the following conditions are applicable ... [Pg.214]

Determine the F/M ratio and solid retention time of an extended aeration system designed for the treatment of 33,800 GPD of pharmaceutical wastewater. The BOD5 of the raw wastewater and treated effluent are 5000 mg/L and 560 mg/L, respectively. Assume the following data and conditions are applicable ... [Pg.228]

The three basic types of activated sludge systems are conventional, contact stabilization, and extended aeration systems [40]. Other types include high-purity oxygen systems and sequencing batch reactors, but these are not commonly used in refineries. [Pg.285]

Wong, J.M. Maroney, P.M. Pilot plant comparison of extended aeration and PACT for toxicity... [Pg.305]

Wong and Maroney [49] reported on a pilot plant comparison of PACT and extended aeration (activated sludge) for treating petroleum rehnery wastewater. Results indicated that although both processes performed similarly in COD removal, only the PACT system yielded an effluent meeting the discharge requirements for whole effluent toxicity reduction. Similar results in toxicity reduction have been reported for wastewaters from other industries [50]. [Pg.536]

X 10 kkg/year, respectively]. Wastewater consists of direct contact process water, noncontact blowdown, and noncontact ancillary water. The total flow of contact water is approximately 1.27 x 10 mVday (3.355 x 10 gpd), and the total flow of noncontact water is 340.4 mVday (9 X 10" gpd). Treatment of the wastewater consists of coagulation, sedimentation, and biological treatment with extended aeration. Treated wastewater is discharged to a surface stream. [Pg.566]

Intermittent Cycle Extended Aeration System (ICEAS)... [Pg.946]

Figure 9. Schematic flow diagram of opened tank digester and extended aeration system (29). Figure 9. Schematic flow diagram of opened tank digester and extended aeration system (29).
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See also in sourсe #XX -- [ Pg.275 ]



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