Research Reporting Series: Environmental protection technology, Volume 2Office of Research and Development, U.S. Environmental Protection Agency, 1978 - Environmental engineering |
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Page 72
... polyelectrolyte . Is that normal experience ? If it is what sort of concen- trations of polyelectrolytes should we be considering ? We're currently using 2 ppm and we've heard that we should be down to around .5 ppm or lower . Davis ...
... polyelectrolyte . Is that normal experience ? If it is what sort of concen- trations of polyelectrolytes should we be considering ? We're currently using 2 ppm and we've heard that we should be down to around .5 ppm or lower . Davis ...
Page 200
... polyelectrolyte . There are many variables which influence the applicability of adding coagulants or coagulant aids ... polyelectrolytes are very expensive and high con- centration demands would result in excessive operating costs . The ...
... polyelectrolyte . There are many variables which influence the applicability of adding coagulants or coagulant aids ... polyelectrolytes are very expensive and high con- centration demands would result in excessive operating costs . The ...
Page 209
... POLYELECTROLYTE ADDITION ON EFFLUENT TSS FLOW PROBABILITY DISTRIBUTION 20 O বসব 1867 10 9 6 5 4 3 2 KEY 2 5 10 20 30 40 50 60 70 80 90 95 98 99 % OF THE ... POLYELECTROLYTE A WITH POLYELECTROLYTE 209 EFFLUENT TSS ( mg / l ) EFFLUENT COD (
... POLYELECTROLYTE ADDITION ON EFFLUENT TSS FLOW PROBABILITY DISTRIBUTION 20 O বসব 1867 10 9 6 5 4 3 2 KEY 2 5 10 20 30 40 50 60 70 80 90 95 98 99 % OF THE ... POLYELECTROLYTE A WITH POLYELECTROLYTE 209 EFFLUENT TSS ( mg / l ) EFFLUENT COD (
Page 224
... size distribution . A good flocculating and settling sludge has a preponderance of large floc mass compared to the fine particle fraction . The large floc mass is , in essence , a biopolymer analogous to a weakly anionic polyelectrolyte ...
... size distribution . A good flocculating and settling sludge has a preponderance of large floc mass compared to the fine particle fraction . The large floc mass is , in essence , a biopolymer analogous to a weakly anionic polyelectrolyte ...
Page 225
Environmental protection technology. essence , a biopolymer analogous to a weakly anionic polyelectrolyte - type polymer . Thus , the large floc mass is a biopolymer flocculant , and the fine particles represent the phase to be ...
Environmental protection technology. essence , a biopolymer analogous to a weakly anionic polyelectrolyte - type polymer . Thus , the large floc mass is a biopolymer flocculant , and the fine particles represent the phase to be ...
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Common terms and phrases
activated carbon activated sludge activated sludge system adsorption aerated lagoon aeration Agency air flotation American Petroleum Institute ammonia analytical aquatic BATEA biological treatment carbon addition carbon adsorption charge chemical colloidal compounds concentration cost counter ions destabilization developed dewatering discharge dissolved air flotation effects effluent effluent quality Engineering Environmental enzyme feed Figure filter filtration flocculation granular carbon Grutsch high sludge age hydrocarbons industrial waste industrial wastewater influent Laboratory levels methods MG/L mg/liter nitrification oil and grease oily sludges Oklahoma operating organic oxidation P.O. Box PACT particles petroleum refinery petroleum refining phase phenols polyelectrolyte polymer potential tunnel powdered activated carbon powdered carbon pretreatment priority pollutants problem reduced removal Research samples soluble standards stream surface suspended solids Table temperature toxic treatment plant treatment systems Tulsa unit University of Tulsa wastewater treatment water quality zeta potential
Popular passages
Page ii - This report has been reviewed by the Environmental Protection Agency and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the Environmental Protection Agency nor does mention of trade names or commercial products constitute endorsement or recommendation for use...
Page 129 - Hexachlorocyclopentadiene Isophorone Lead and compounds Mercury and compounds Naphthalene Nickel and compounds Nitrobenzene Nitrophenols (including 2,4-dinitrophenol...
Page 9 - Except as provided in subsection (b), any person may commence a civil action on his own behalf — "(1) against any person (including (i) the United States, and (ii) any other governmental instrumentality or agency to the extent permitted by the Eleventh Amendment to the Constitution) who is alleged to be in violation of (A) an emission standard or limitation...
Page 8 - NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM "SEC. 402. (a) (1) Except as provided in sections 318 and 404 of this Act, the Administrator may, after opportunity for public hearing, issue a permit for the discharge of any pollutant, or combination of pollutants...
Page 120 - Federal financial assistance be provided to construct publicly owned waste treatment works; (5) it is the national policy that areawide waste treatment management planning processes be developed and implemented to assure adequate control of sources of pollutants in each State; and (6) it is the national policy that a major research and demonstration effort be made to develop technology necessary to eliminate the discharge of pollutants into the navigable waters, waters of the contiguous zone, and...
Page 150 - ... in any quantity into or upon the navigable waters of the United States or adjoining shorelines or the waters of the contiguous zone, present an imminent and substantial danger to the public health or welfare, including, but not limited to, fish, shellfish, wildlife, shorelines, and beaches.
Page 128 - Chlorinated phenols (other than those listed elsewhere: includes trichlorophenols and chlorinated cresols) Chloroform 2-Chlorophenol Chromium and compounds Copper and compounds Cyanides DDT and metabolites...
Page 150 - ... toxic pollutant' means those pollutants, or combinations of pollutants, including disease-causing agents, which after discharge and upon exposure, ingestion, inhalation or assimilation into any organism, either directly from the environment or indirectly by ingestion through food chains, will, on the basis of information available to the Administrator, cause death, disease, behavioral abnormalities, cancer, genetic mutations, physiological malfunctions (including malfunctions in reproduction)...
Page 149 - States to which an application has been made under subparagraph (A) (ii) finds that there is a reasonable basis to conclude that the manufacture, processing, distribution in commerce, use, or disposal...
Page 128 - Acenaphthene Acrolein Acrylonitrile Aldrin/Dieldrin Antimony and compounds' Arsenic and compounds Asbestos Benzene Benzidine Beryllium and compounds Cadmium and compounds Carbon tetrachloride Chlordane (technical mixture and metabolites) Chlorinated benzenes (other than dichlorobenzenes) Chlorinated ethanes (including...