Treatment of coal-conversion wastewater with the powdered activated carbon-contact stabilization activated-sludge process. First semiannual technical progress report, August 1, 1980-January 31, 1981
The treatment of coal conversion wastewaters has traditionally been accomplished through the use of the activated sludge process and its various modifications. General observations have been that phenol was degraded efficiently; however, very poor removal efficiencies of thiocyanate, cyanide, and am...
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Illinois Univ., Urbana (USA). Dept. of Civil Engineering
1981
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ftunivnotexas:info:ark/67531/metadc1192896 2023-05-15T15:53:00+02:00 Treatment of coal-conversion wastewater with the powdered activated carbon-contact stabilization activated-sludge process. First semiannual technical progress report, August 1, 1980-January 31, 1981 Suidan, M.T. Pirbazari, M. Gee, C.S. Deady, M.A. 1981-01-01 23 pages Text https://doi.org/10.2172/6897800 https://digital.library.unt.edu/ark:/67531/metadc1192896/ English eng Illinois Univ., Urbana (USA). Dept. of Civil Engineering rep-no: DOE/PC/30233-T1 doi:10.2172/6897800 osti: 6897800 https://digital.library.unt.edu/ark:/67531/metadc1192896/ ark: ark:/67531/metadc1192896 Coal Gasification Elements Chemical Reactions Cyanides 01 Coal Lignite And Peat Processing Organic Compounds Wastes Water Treatment Waste Processing Carbon Thiocyanates Water 010800* -- Coal & Peat-- Waste Management Hydrides Nitrogen Compounds Hydrogen Compounds Chemical Composition Phenols Oxygen Compounds Organic Sulfur Compounds Hydroxy Compounds Activated Carbon Aromatics Waste Water Ammonia Activated Sludge Process Chemical Effluents Thermochemical Processes Adsorbents Industrial Plants Management Waste Management Carbonic Acid Derivatives Liquid Wastes Gasification Nonmetals Denitrification Coking Plants Phenol Nitrogen Hydrides Coal Gasification Plants Report 1981 ftunivnotexas https://doi.org/10.2172/6897800 2021-01-23T23:08:15Z The treatment of coal conversion wastewaters has traditionally been accomplished through the use of the activated sludge process and its various modifications. General observations have been that phenol was degraded efficiently; however, very poor removal efficiencies of thiocyanate, cyanide, and ammonia were obtained. The addition of powdered activated carbon (PAC) to the activated sludge process has been reported to result in a number of distinct advantages. Generally, however, improving the effluent water quality beyond the capabilities of conventional biological treatment and enhancing the treatability of wastewaters that inhibit or toxify biological treatment systems are the primary objectives of utilizing PAC in secondary biological treatment. The focus of the present research project is to assess the effectiveness of the powdered activated carbon-contact stabilization activated sludge process in the treatment of a coking wastewater. The purpose of the contact tank in such a process will be to provide sufficient time for the adsorbable constituents of the coking wastewater to adsorb onto the PAC. The liquor leaving the contact tank is then clarified with the concentratrated underflow receiving treatment in the stabilization tank. After stabilization the sludge is returned to the contact tank. The clarifier supernatant is then nitrified in an activated sludge-type nitrification process and the nitrified effluent is subsequently denitrified in an anoxic filter. Report Carbonic acid University of North Texas: UNT Digital Library |
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Open Polar |
collection |
University of North Texas: UNT Digital Library |
op_collection_id |
ftunivnotexas |
language |
English |
topic |
Coal Gasification Elements Chemical Reactions Cyanides 01 Coal Lignite And Peat Processing Organic Compounds Wastes Water Treatment Waste Processing Carbon Thiocyanates Water 010800* -- Coal & Peat-- Waste Management Hydrides Nitrogen Compounds Hydrogen Compounds Chemical Composition Phenols Oxygen Compounds Organic Sulfur Compounds Hydroxy Compounds Activated Carbon Aromatics Waste Water Ammonia Activated Sludge Process Chemical Effluents Thermochemical Processes Adsorbents Industrial Plants Management Waste Management Carbonic Acid Derivatives Liquid Wastes Gasification Nonmetals Denitrification Coking Plants Phenol Nitrogen Hydrides Coal Gasification Plants |
spellingShingle |
Coal Gasification Elements Chemical Reactions Cyanides 01 Coal Lignite And Peat Processing Organic Compounds Wastes Water Treatment Waste Processing Carbon Thiocyanates Water 010800* -- Coal & Peat-- Waste Management Hydrides Nitrogen Compounds Hydrogen Compounds Chemical Composition Phenols Oxygen Compounds Organic Sulfur Compounds Hydroxy Compounds Activated Carbon Aromatics Waste Water Ammonia Activated Sludge Process Chemical Effluents Thermochemical Processes Adsorbents Industrial Plants Management Waste Management Carbonic Acid Derivatives Liquid Wastes Gasification Nonmetals Denitrification Coking Plants Phenol Nitrogen Hydrides Coal Gasification Plants Suidan, M.T. Pirbazari, M. Gee, C.S. Deady, M.A. Treatment of coal-conversion wastewater with the powdered activated carbon-contact stabilization activated-sludge process. First semiannual technical progress report, August 1, 1980-January 31, 1981 |
topic_facet |
Coal Gasification Elements Chemical Reactions Cyanides 01 Coal Lignite And Peat Processing Organic Compounds Wastes Water Treatment Waste Processing Carbon Thiocyanates Water 010800* -- Coal & Peat-- Waste Management Hydrides Nitrogen Compounds Hydrogen Compounds Chemical Composition Phenols Oxygen Compounds Organic Sulfur Compounds Hydroxy Compounds Activated Carbon Aromatics Waste Water Ammonia Activated Sludge Process Chemical Effluents Thermochemical Processes Adsorbents Industrial Plants Management Waste Management Carbonic Acid Derivatives Liquid Wastes Gasification Nonmetals Denitrification Coking Plants Phenol Nitrogen Hydrides Coal Gasification Plants |
description |
The treatment of coal conversion wastewaters has traditionally been accomplished through the use of the activated sludge process and its various modifications. General observations have been that phenol was degraded efficiently; however, very poor removal efficiencies of thiocyanate, cyanide, and ammonia were obtained. The addition of powdered activated carbon (PAC) to the activated sludge process has been reported to result in a number of distinct advantages. Generally, however, improving the effluent water quality beyond the capabilities of conventional biological treatment and enhancing the treatability of wastewaters that inhibit or toxify biological treatment systems are the primary objectives of utilizing PAC in secondary biological treatment. The focus of the present research project is to assess the effectiveness of the powdered activated carbon-contact stabilization activated sludge process in the treatment of a coking wastewater. The purpose of the contact tank in such a process will be to provide sufficient time for the adsorbable constituents of the coking wastewater to adsorb onto the PAC. The liquor leaving the contact tank is then clarified with the concentratrated underflow receiving treatment in the stabilization tank. After stabilization the sludge is returned to the contact tank. The clarifier supernatant is then nitrified in an activated sludge-type nitrification process and the nitrified effluent is subsequently denitrified in an anoxic filter. |
format |
Report |
author |
Suidan, M.T. Pirbazari, M. Gee, C.S. Deady, M.A. |
author_facet |
Suidan, M.T. Pirbazari, M. Gee, C.S. Deady, M.A. |
author_sort |
Suidan, M.T. |
title |
Treatment of coal-conversion wastewater with the powdered activated carbon-contact stabilization activated-sludge process. First semiannual technical progress report, August 1, 1980-January 31, 1981 |
title_short |
Treatment of coal-conversion wastewater with the powdered activated carbon-contact stabilization activated-sludge process. First semiannual technical progress report, August 1, 1980-January 31, 1981 |
title_full |
Treatment of coal-conversion wastewater with the powdered activated carbon-contact stabilization activated-sludge process. First semiannual technical progress report, August 1, 1980-January 31, 1981 |
title_fullStr |
Treatment of coal-conversion wastewater with the powdered activated carbon-contact stabilization activated-sludge process. First semiannual technical progress report, August 1, 1980-January 31, 1981 |
title_full_unstemmed |
Treatment of coal-conversion wastewater with the powdered activated carbon-contact stabilization activated-sludge process. First semiannual technical progress report, August 1, 1980-January 31, 1981 |
title_sort |
treatment of coal-conversion wastewater with the powdered activated carbon-contact stabilization activated-sludge process. first semiannual technical progress report, august 1, 1980-january 31, 1981 |
publisher |
Illinois Univ., Urbana (USA). Dept. of Civil Engineering |
publishDate |
1981 |
url |
https://doi.org/10.2172/6897800 https://digital.library.unt.edu/ark:/67531/metadc1192896/ |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
rep-no: DOE/PC/30233-T1 doi:10.2172/6897800 osti: 6897800 https://digital.library.unt.edu/ark:/67531/metadc1192896/ ark: ark:/67531/metadc1192896 |
op_doi |
https://doi.org/10.2172/6897800 |
_version_ |
1766388067950657536 |