A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Implementing Direct Filtration and Natural Freezing of Alum Sludge
In the early 1970s the Metropolitan Water Board, located in central New York State, was faced with two challenges: to expand the treatment capacity of its Lake Ontario plant and to dispose of process waste economically and in such a way that the requirements of its pollutant discharge permit were met. Doubling of treatment capacity was accomplished, after extensive testing, by implementing high‐rate direct filtration, which also reduced the amount of alum sludge produced by the plant. Pilot‐ and full‐scale testing at the plant led to construction of permanent sludge‐handling facilities. This system incorporates modified retention lagoons for solids separation, initial consolidation, and storage; and a floating pump for transferring the sludge via a pipeline to a series of beds, where freezing, thawing, and decanting concentrate the sludge substantially, making it suitable for land application by standard earth‐moving equipment
Implementing Direct Filtration and Natural Freezing of Alum Sludge
In the early 1970s the Metropolitan Water Board, located in central New York State, was faced with two challenges: to expand the treatment capacity of its Lake Ontario plant and to dispose of process waste economically and in such a way that the requirements of its pollutant discharge permit were met. Doubling of treatment capacity was accomplished, after extensive testing, by implementing high‐rate direct filtration, which also reduced the amount of alum sludge produced by the plant. Pilot‐ and full‐scale testing at the plant led to construction of permanent sludge‐handling facilities. This system incorporates modified retention lagoons for solids separation, initial consolidation, and storage; and a floating pump for transferring the sludge via a pipeline to a series of beds, where freezing, thawing, and decanting concentrate the sludge substantially, making it suitable for land application by standard earth‐moving equipment
Implementing Direct Filtration and Natural Freezing of Alum Sludge
Fitch, David E. (author) / Elliott, C. Michael (author)
Journal ‐ American Water Works Association ; 78 ; 52-56
1986-12-01
5 pages
Article (Journal)
Electronic Resource
English
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