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Nonpoint pollution control facilities using the backwash facilities and stagnant water may exclude
Nonpoint pollution control facilities using the backwash facilities and stagnant water may exclude
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机译：使用反冲洗设施和死水的非点源污染控制设施可能不包括在内
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摘要
The present invention is a concrete rectangular parallelepiped having a front wall, a rear wall, a left side wall, a right side wall, a top wall and a bottom wall each having a housing having at least one manhole and a manhole cover, And a discharge pipe through which the initial rainwater is introduced and which is introduced through the rear wall of the housing and is discharged to the outside is formed, Wherein the bottom of the bottom wall of the housing is vertically raised to the rear of the settling tank and the top of the bottom wall is equal to the bottom height of the inflow pipe A filtration bulkhead separating the filtration compartment from the space of the filtration tank formed at the lower side or formed at the rear side; A filtration mesh net disposed at a central portion of the filtration tank and having a front end fixed to the left and right side walls, a filtration bulkhead and a rear wall; A filter medium layer having at least one filter medium which is located on the upper side of the filtration mesh network and is filtered while flowing an initial bleed through the filtration bulkhead in the settling tank to the filtration tank; And at least one water injection nozzle disposed at a lower portion of the filtering mesh network of the filtration tank and spraying water at a predetermined pressure toward the filter medium layer through the filtering mesh network to separate the foreign substances adhering to the filter medium of the filter medium layer, And a non-point pollution abatement facility using the backwashing facility. In the present invention, even when heavy rain is poured, the inflow passage or the discharge passage is not blocked by the soil, the mud, or the leaves that have flowed into the inside, so that the inflow and outflow of the initial storm is not obstructed, The maintenance cost is greatly reduced.
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