| 摘要 |
A prefabricated structure for river or lake water treatment is provided to save much time and cost required in the foundation work by mass-producing the prefabricated structure instead of conventional concrete structures, and install the prefabricated structure at work sites promptly by changing the prefabricated structure variably and easily according to purification areas and treatment capacities. As a structure in which a river or lake purification device can be included to purify suspended solids or organic matters contained in sewage, a prefabricated structure(1) for river or lake water treatment comprises: an upper structure(10) including a top face(11) having at least one opening part(13) and sidewalls(12) formed on the periphery of the top face; a lower structure(20) including a bottom face(21) and sidewalls(22) formed on the periphery of the bottom face; and an intermediate structure(30) formed between the upper and lower structures, the intermediate structure including sidewalls(32) capable of being joined with the sidewalls of the upper and lower structures respectively, wherein one or more of the upper, lower and intermediate structures have inlets(14,34) and outlets(15,35) for flowing in and out sewage. The upper, lower and intermediate structures manufactured using, as raw materials, one or more synthetic resins selected from polyethylene, polypropylene, high density polyethylene, and fiber glass reinforced plastic. The lower structure has sludge treatment ports(26,27) for discharging sludge settled in sewage. |
