Vortex grit removal apparatus with eddy generator

A system for separating grit from a grit-loaded liquid matrix in a liquid matrix flowstream inside a grit separating apparatus while retaining liquid matrix organic solids in suspension and water, the grit separating apparatus including

• an inlet for admitting the grit-loaded liquid matrix into the grit separating apparatus,
• an outlet for removing grit-lite liquid matrix from the grit separating apparatus, wherein the grit is separated from the grit separating apparatus,
• a cylindrical grit settling main chamber defining
• a bottom end portion,
• a top end and a peripheral wall, the grit being separated from the grit separating apparatus at said main chamber bottom end portion,
• a secondary chamber including
• a central grit settling access top mouth opening through said main chamber bottom end portion,
• a partition extending transversely through said cylindrical grit settling main chamber intermediate said top end and said bottom end portion thereof spacedly therefrom wherein
• an upper subchamber is formed in the cylindrical grit settling main chamber, said cylindrical grit settling main chamber above said partition and
• a lower subchamber is formed in said cylindrical grit settling main chamber below said partition, said grit-loaded liquid matrix inlet in direct fluid communication with said lower subchamber, said grit-lite liquid matrix outlet in direct fluid communication with said upper subchamber, said partition having a peripheral edge, integrally mounted in substantially fluid tight fashion to said peripheral wall of said cylindrical grit settling main chamber, and a central mouth, wherein a liquid matrix fluid flow speed gradient is established between said upper and lower subchambers through said partition central mouth,
• a turbulence generating fluid dynamic component, mounted inside said upper subchamber and providing enhanced fine grit separation from said grit-loaded liquid matrix, said turbulence generating fluid dynamic component includes at least one eductor fixedly mounted inside said upper subchamber, and a fresh water supply, said at least one eductor producing Eddy-type turbulences inside said upper subchamber, each said at least one eductor defining a hollow main body having a fresh water supply intake port operatively coupled to said fresh water supply, and an outlet port, opening into said liquid matrix flowstream, the system comprising the steps of:
• admitting the grit-loaded liquid matrix into the grit separating apparatus;
• generating the liquid matrix flowstream inside the grit separating apparatus;
• providing the liquid matrix fluid flow speed gradient within said liquid matrix flowstream between said upper and lower subchambers through said partition central mouth;
• and
• generating fluid flow Eddy type turbulences inside the upper subchamber by:
• a. force feeding freshwater into each said at least one eductor main body freshwater supply intake port, and
• b. ejecting said freshwater through and from each said at least one eductor hollow main body and into said liquid matrix flowstream in the upper subchamber;
• wherein the grit-lite liquid matrix is removed from the grit separating apparatus.

Apparatus for separating grit from a grit-loaded liquid matrix while retaining liquid matrix organic solids in suspension and water, including tangential inlet means admitting the grit-loaded liquid matrix into the apparatus, grit-lite liquid matrix outlet means for removing grit-lite liquid matrix from the apparatus, and grit removing means for removing the separated grit from the apparatus, the apparatus further comprising:

• a cylindrical grit settling main chamber defining a bottom end portion, a top end and a peripheral wall;
• said grit removing means for removing the separated grit from the apparatus cooperating with said main chamber bottom end portion;
• a secondary chamber including a central grit settling access top mouth opening through said main chamber bottom end portion;
• a partition extending transversely through said cylindrical grit settling main chamber intermediate said top end and said bottom end portion thereof spacedly therefrom wherein an upper subchamber is formed in said cylindrical grit settling main chamber above said partition and a lower subchamber is formed in said cylindrical grit settling main chamber below said partition, said grit-loaded liquid matrix tangential inlet means in direct fluid communication with said lower subchamber, said grit-lite liquid matrix outlet means in direct fluid communication with said upper subchamber, said partition having a peripheral edge, integrally mounted in substantially fluid tight fashion to said peripheral wall of said cylindrical grit settling main chamber, and a central aperture;
• wherein a liquid matrix fluid flow speed gradient is established between said upper and lower subchambers through said partition central aperture;
• and
• further including a turbulence generating fluid dynamic component, mounted inside said upper subchamber and providing enhanced fine grit separation from said grit-loaded liquid matrix, said turbulence generating fluid dynamic component producing Eddy-type turbulences inside said upper subchamber.