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  • Articles  (23)
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  • Articles  (23)
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  • 1
    Electronic Resource
    Electronic Resource
    Design of a single incubation column radioimmunoassay (1978)
    s.l. : American Chemical Society
    Analytical chemistry 50 (1978), S. 1618-1623 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac50034a012
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  • 2
    Electronic Resource
    Electronic Resource
    Process for power generation from wet air oxidation with application to coal gasification waste waters (1981)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 20 (1981), S. 12-19 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/i200012a002
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  • 3
    Electronic Resource
    Electronic Resource
    Rate of availability of total phosphorus in river waters (1979)
    s.l. : American Chemical Society
    Environmental science & technology 13 (1979), S. 844-849 
    Details
    ISSN: 1520-5851
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/es60155a011
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  • 4
    Electronic Resource
    Electronic Resource
    Breakage and Coalescence Processes in an Agitated Dispersion. Experimental System and Data Reduction (1977)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 16 (1977), S. 371-377 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/i160063a012
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  • 5
    Electronic Resource
    Electronic Resource
    An analysis of total phosphorus transport in river systems (1982)
    Springer
    Hydrobiologia 91-92 (1982), S. 241-252 
    Details
    ISSN: 1573-5117
    Keywords: pollution ; rivers ; transport ; calculation ; phosphorus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Human activities generate many pollutants from different land uses. These pollutants include nutrients (e.g., phosphorus and nitrogen), toxic substances (e.g., heavy metals and pesticides), and other substances (e.g., chlorides and salts). These materials often enter a river at some upstream point and are transported downstream by the flowing water. Many substances are transported both during storms and during normal river flow and often the major portion of the transport occurs during the storms. This paper considers the quantification of transport primarily during storms. First, the characteristics of storm transport are discussed. Then, a calculation method for estimating the distance of travel for sediment related materials is presented. Third, a technique to estimate the amount of a given chemical passing a point in a stream over a specified period of time is presented. The last part of this paper contains a technique for tracing the movement of substances through a river network. In particular, this procedure yields information as to the source of given pollutants over the entire Storm period.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02391941
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  • 6
    Electronic Resource
    Electronic Resource
    An analysis of total phosphorus transport in river systems (1982)
    Springer
    Hydrobiologia 91-92 (1982), S. 241-252 
    Details
    ISSN: 1573-5117
    Keywords: pollution ; rivers ; transport ; calculation ; phosphorus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Human activities generate many pollutants from different land uses. These pollutants include nutrients (e.g., phosphorus and nitrogen), toxic substances (e.g., heavy metals and pesticides), and other substances (e.g., chlorides and salts). These materials often enter a river at some upstream point and are transported downstream by the flowing water. Many substances are transported both during storms and during normal river flow and often the major portion of the transport occurs during the storms. This paper considers the quantification of transport primarily during storms. First, the characteristics of storm transport are discussed. Then, a calculation method for estimating the distance of travel for sediment related materials is presented. Third, a technique to estimate the amount of a given chemical passing a point in a stream over a specified period of time is presented. The last part of this paper contains a technique for tracing the movement of substances through a river network. In particular, this procedure yields information as to the source of given pollutants over the entire Storm period.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00940115
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  • 7
    Electronic Resource
    Electronic Resource
    Mixing in anaerobic digestion (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 16 (1974), S. 757-770 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The mixing of the anaerobic digester contents significantly influences the efficiency of this operation; in particular, hydraulic dead zones are extremely detrimental to the reaction kinetics involved in anaerobic digestion. An analysis of the relative importance of thermal fluid movement in the digester to those caused by fluid inflow and outflow is presented. As an example, these principles are applied to a digester at the South Bend Wastewater Treatment Plant. Experimental measurements, which have general applicability for the measurement of digester mixing volume, confirm the theoretical conjectures. Various types of optimizations can be attempted on this mixing operation. One such optimization applied to gas lift mixers, as employed in the South Bend Treatment Plant, is illustrated.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260160606
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  • 8
    Electronic Resource
    Electronic Resource
    Mass and energy balance analysis of metabolic pathways applied to citric acid production by aspergillus niger (1976)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 18 (1976), S. 425-432 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260180312
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  • 9
    Electronic Resource
    Electronic Resource
    Enzyme activity maintenance in packed-bed reactors via continuous enzyme addition (1981)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 23 (1981), S. 41-60 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: An operational scheme for using immobilized enzymes in packed-bed reactors that permits operation at a constant throughput rate and constant product quality is described. The scheme used columns operated in series with continuous enzyme addition to compensate for enzyme decay. A mathematical technique was developed to determine the enzyme addition rate, enzyme usage, and enzyme volume in the column system. Operation of columns in series is compared to operation where the flow rate is decreased to compensate for a loss of enzyme activity for both zero-and first-order decay. The analyses indicated that columns in series resulted in better enzyme utilization but larger reactor volumes than parallel reactors with decreasing flow rate.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260230105
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  • 10
    Electronic Resource
    Electronic Resource
    A mechanism of microbial cell growthPresented at 161st National Meeting of the American Chemical Society, Los Angeles, California, March 1971. (1972)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 14 (1972), S. 411-436 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Presently empirical expressions, especially the Monod equation, are used to quantitatively relate microbial growth rate to limiting substrate concentration in the solution. In this paper microbial growth is postulated to occur by a mechanism involving a mass transfer or assimilation process. The assimilation process is assumed to be substrate mass transfer limited and hence proportional to the limiting substrate concentration. The ingestion is assumed independent of limiting substrate concentration and only dependent upon internal reaction rates. The quantitative relationship between limiting substrate and microbial growth rate resulting from this mechanism is developed. Under certain limiting conditions this expression is shown to reduce to the Monod equation and under other conditions it reduces to the Lotka-Volterra relationship. This mechanism is applied to batch and continuous cultures and the results obtained are compared quantitatively with experiment.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260140311
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