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Title: Characterization of air pollutants from an activated sludge process

Abstract

An eight-month monitoring study was conducted to characterize air pollutants near a large activated sludge plant in a Chicago suburb. Air pollutants detected include aerobic bacteria-containing particles, total suspended particulates, nitrogen dioxide, sulfur dioxide, chloride, hydrogen sulfides, and trace elements. The wastewater treatment plant is concluded to be a significant source of total coliforms and atmospheric bacteria-containing particles. (6 maps, 23 references, 6 tables)

Authors:
; ;
Publication Date:
Research Org.:
Univ of Illinois
OSTI Identifier:
6504505
Resource Type:
Journal Article
Resource Relation:
Journal Name: J. Water Pollut. Control Fed.; (United States); Journal Volume: 53:2
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; ACTIVATED SLUDGE PROCESS; CHEMICAL EFFLUENTS; CHLORIDES; ECOLOGICAL CONCENTRATION; HYDROGEN SULFIDES; NITROGEN DIOXIDE; SULFUR DIOXIDE; AEROSOL MONITORING; AIR POLLUTION; ENVIRONMENTAL IMPACTS; ILLINOIS; PUBLIC HEALTH; WASTE PROCESSING; CHALCOGENIDES; CHLORINE COMPOUNDS; GREAT LAKES REGION; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; MANAGEMENT; MONITORING; NITROGEN COMPOUNDS; NITROGEN OXIDES; NORTH AMERICA; OXIDES; OXYGEN COMPOUNDS; POLLUTION; PROCESSING; SULFIDES; SULFUR COMPOUNDS; SULFUR OXIDES; USA; WASTE MANAGEMENT 500200* -- Environment, Atmospheric-- Chemicals Monitoring & Transport-- (-1989); 570000 -- Health & Safety

Citation Formats

Scheff, P.A., Holden, J.A., and Wadden, R.A. Characterization of air pollutants from an activated sludge process. United States: N. p., 1981. Web.
Scheff, P.A., Holden, J.A., & Wadden, R.A. Characterization of air pollutants from an activated sludge process. United States.
Scheff, P.A., Holden, J.A., and Wadden, R.A. 1981. "Characterization of air pollutants from an activated sludge process". United States. doi:.
@article{osti_6504505,
title = {Characterization of air pollutants from an activated sludge process},
author = {Scheff, P.A. and Holden, J.A. and Wadden, R.A.},
abstractNote = {An eight-month monitoring study was conducted to characterize air pollutants near a large activated sludge plant in a Chicago suburb. Air pollutants detected include aerobic bacteria-containing particles, total suspended particulates, nitrogen dioxide, sulfur dioxide, chloride, hydrogen sulfides, and trace elements. The wastewater treatment plant is concluded to be a significant source of total coliforms and atmospheric bacteria-containing particles. (6 maps, 23 references, 6 tables)},
doi = {},
journal = {J. Water Pollut. Control Fed.; (United States)},
number = ,
volume = 53:2,
place = {United States},
year = 1981,
month = 2
}
  • A municipal dual-train activated sludge plant was used to demonstrate the comparative performance of activated sludge units utilizing: (1) high sludge age (SA) operation, (2) conventional operation at 10 to 15 days SA enhanced with commercial powdered activated carbon (PAC), (3) high SA operation enhanced with ultrahigh surface area PAC. One train of the plant was used as a ''control'', and for experimental high SA operation the parallel train was modified with a granular media filter for prefiltering the influent to the activated sludge unit (ASU). The 15-month program demonstrated the advantages of high SA, and high SA enhanced withmore » PAC, operating modes for achieving superb effluent quality in terms of minimal soluble organic carbon (SOC), chemical oxygen demand (COD), total suspended solids (TSS), and ammonia nitrogen, at unexpectedly low costs. Serendipitously, the energy usage is reduced to the extent that there is no imported primary energy requirement. 22 refs.« less
  • The concepts of phase separation, anaerobic activated sludge process, and alkali pretreatment have been incorporated in this investigation with the objective of developing rational and cost-effective designs of diphasic anaerobic activated sludge systems, with and without alkali treatment, for methane recovery from water hyacinth (WH). Evaluation of process kinetics and optimization analyses of laboratory data reveal that a diphasic system with alkali treatment could be designed with an alkali pretreatment step (3.6% Na/sub 2/CO/sub 3/ + 2.5% Ca(OH)/sub 2/ (w/w) of WH, 24 h duration) followed by an open acid phase (2.1 days HRT) and closed methane reactor with sludgemore » recycle (5.7 days HRT, 7.7 days MCRT) for gas yield of 50 L/kg WH/d at 35-37/sup 0/C. Likewise, a diphasic system without alkali treatment could be designed with an open acid phase (2 days HRT) followed by closed methane reactor with sludge recycle (3.2 days HRT, 6 days MCRT) for gas yield of 32.5 L/kg WH/d at 35-37/sup 0/C. Detailed economic analyses bring forth greater cost-efficacy of the diphasic system without alkali treatment and reveal that the advantage accrued in terms of higher gas yield is overshadowed by the cost of chemicals in the diphasic system with alkali treatment.« less
  • The concepts of phase separation, anaerobic activated sludge process, and alkali pretreatment have been incorporated in this investigation with the objective of developing rational and cost-effective designs of diphasic anaerobic activated sludge systems, with and without alkali treatment, for methane recovery from water hyacinth (WH). Evaluation of process kinetics and optimization analyses of laboratory data reveal that a diphasic system with alkali treatment could be designed with an alkali pretreatment step (3.6% Na/sub 2/CO/sub 3/ + 2.5% Ca(OH)/sub 2/ (w/w) of WH, 24 h duration) followed by an open acid phase (2.1 days HRT) and closed methane reactor with sludgemore » recycle (5.7 days HRT, 7.7 days MCRT) for gas yield of 50 l/kg WH/d at 35-37/sup 0/C. Likewise, a diphasic system without alkali treatment could be designed with an open acid phase (2 days HRT) followed by close methane reactor with sludge recycle (3.2 days HRT, 6 days MCRT) for gas yield of 32.5 l.kg WH/d at 35-37/sup 0/C. Detailed economic analyses bring forth greater cost-efficacy of the diphasic system without alkali treatment and reveal that the advantage accrued in terms of higher gas yield is overshadowed by the cost of chemicals in the diphasic system with alkali treatment.« less
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  • Federal guidelines have been issued that regulate the aqueous discharge concentrations of priority pollutants for the organic chemicals, plastics, and synthetic fibers industries. Insufficient data existed in the literature to allow estimations of the removal of priority pollutants by a wastewater treatment plant (WWTP). The removals of 18 problem organic priority pollutants were measured in five parallel, aerated, continuous, mixed reactors. The influent to the laboratory pilot plants was primary effluent from an industrial 1.75 m[sup 3]/s (40 Mg/d) WWTP at Du Pont's Chambers Works in Deepwater, N. J. This plant utilizes powdered activated carbon in combination with activated sludgemore » (PACT[reg sign] Process) in the aeration tanks. The kinetic coefficients that characterize removal by biodegradation, powdered activated carbon adsorption, and air-stripping were obtained from the pilot-plant data, and a steady-state model was used to predict priority pollutant removals. Good agreement was obtained, with the exception of three compounds that were batch discharged from the process sources, which invalidated the steady-state assumption. The model was used to design a second stage PACT unit and to determine source control requirements. The model also can be used to estimate the relative importance of the three removal mechanisms in order to adjust WWTP operating conditions to enhance the removal of specific compounds. 9 refs., 6 figs., 6 tabs.« less