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  1. A comparison of the benthic diatom associations inhabiting the MPC Colstrip Units 3 & 4 effluent holding ponds with those in Cow Creek, Rosebud County, Montana during June 1985 /
    By: Bahls, Loren L. - Montana.
    Publication info: Helena, Mont. :Water Quality Bureau, Environmental Sciences Division, Dept. of Health and Environmental Sciences,[1985]
    Contributed by: Montana State Library (archive.org)
    Subjects: Benthic animals  Diatoms  Effluent quality  Environmental aspects  Montana  Physiological effect  Pollution  Purification  Rosebud County  Sewage  Water  Water quality  
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  2. Constructed wetlands for stormwater management : a review / [prepared] for the Metropolitan Toronto and Region Conservation Authority & the Ontario Ministry of the Environment by Mark E. Taylor & Associates.
    By: Mark E. Taylor & Associates. - Metropolitan Toronto and Region Conservation Authority. - Ontario.
    Publication info: Toronto, Ont. :Mark E. Taylor & Associates,1992.
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Biological treatment  Constructed wetlands  Function  Ontario  Purification  Sewage  Sewage lagoons  Storm sewers  Storm water retention basins  Urban runoff  Water  Water quality management  Wetlands  
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  3. Constructed wetlands for the treatment of wastewater / by Otto Stein
    By: Stein, Otto. - Allen, W. C. - Biederman, J. A. - Hook, P. B. - Montana University System.
    Publication info: Bozeman, Mont. :Montana University System, Water Resources Center,1996.
    Contributed by: Montana State Library (archive.org)
    Subjects: Constructed wetlands  Montana  Purification  Research  Water  Water resources development  Wetland planting  Wetlands  
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  4. Elements of water bacteriology, with special reference to sanitary water analysis.
    By: Prescott, Samuel Cate, - Winslow, C.-E. A.
    Edition: 2d ed., rewritten. 1st thousand.
    Publication info: J. Wiley,1908.
    Contributed by: Cornell University Library
    Subjects: Bacteriology  Purification  Water  
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  5. A method of destroying or preventing the growth of Algæ and certain pathogenic bacteria in water supplies. By George T. Moore ... and Karl F. Kellerman.
    By: Moore, George Thomas, - Kellerman, Karl F.
    Publication info: Washington :Gov't print. off.,1904.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Algicides  Fungicides  Purification  Water  
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  6. Removal of nitrate by an algal system. [Author: Randall L. Brown.
    By: California. - Brown, Randall L.
    Publication info: Sacramento];For sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington,1971.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Algae  Biological treatment  Nitrates  Nitrogen removal  Purification  Water  
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  7. Removal of nitrate by an algal system; phase II. Prepared by California Dept. of Water Resources.
    By: California. - United States.
    Publication info: Washington,For sale by the Supt. of Docs., U.S. Govt. Print. Off.,1971.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Algae  Biological treatment  Nitrates  Purification  Water  
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  1. A simple procedure for the purification of active fractions in aqueous extracts of plants with allelopathic properties
    By: Borghetti,Fabian - Lima,Elisa Coutinho de - Silva,Lucas de Carvalho Ramos
    Type: Article
    In: Acta Botanica Brasilica
    Date: 2013-03-01
    Subjects: allelopathy  Cerrado  freeze-drying  leaf extract  Purification  
    View Article (External)