초록 ▼

A mixing, aerating and decanting unit adapted for floating installation in a liquid treatment basin and operable to provide mixing, aeration, settling and decanting phases in an SBR (sequencing bath reactor) process. The unit comprises a rigid support structure with floats for buoyantly supporting t

A mixing, aerating and decanting unit adapted for floating installation in a liquid treatment basin and operable to provide mixing, aeration, settling and decanting phases in an SBR (sequencing bath reactor) process. The unit comprises a rigid support structure with floats for buoyantly supporting the unit in the basin, a mixing apparatus operable to mix liquid in the basin, an aerating apparatus selectively operable to supply air to the water in the basin, and a decanter apparatus for decanting liquid from the basin.

대표청구항 ▼

A mixing, aerating and decanting apparatus adapted for floating installation as a unit in a liquid treatment basin and operable to provide mixing, aeration, settling and decanting phases in an SBR (sequencing batch reactor apparatus) process, the apparatus comprising: (a) a rigid support structure;

A mixing, aerating and decanting apparatus adapted for floating installation as a unit in a liquid treatment basin and operable to provide mixing, aeration, settling and decanting phases in an SBR (sequencing batch reactor apparatus) process, the apparatus comprising: (a) a rigid support structure; (b) float means attached to the support structure for buoyantly supporting the unit in the basin; (c) mixing apparatus including drive motor means mounted on the support structure for support thereby above the liquid level, shaft means drivingly connected to the drive motor means and extending downwardly therefrom, and propeller means on the shaft means for pumping liquid in the basin when the drive motor means is operated; (d) aerator means mounted on the support structure and including air passage means having air inlet means above the liquid level open to atmosphere and air outlet means below the liquid level adjacent the propeller means and constructed and arranged to aspirate air into the liquid pumped by the propeller means for dispersion therewith, air control means operable to shut off flow of air through the air passage means; (e) decanter means mounted on the frame structure and including decanter inlet means disposed below the liquid level for decanting liquid from the basin; (f) selectively operable decant control means on the support structure for closing the decanter inlet means; and (g) SBR process cycle control means for controlling operation of the drive motor means and the air control means and the decant control means through an SBR process cycle in the basin.