Abstract: A solids collector for collecting solids in waste water that are heavier than water includes a roto-molded plastic container having a cylindrical sidewall and a downwardly sloping bottom. An inlet and outlet are connected to the sidewall substantially above the sloping bottom so that solids that are heavier than water in the waste water coming into the container through the inlet have residence time in the container long enough to gravitationally separate towards the bottom. Waste water depleted of solids that are heavier than water discharge from the container through the outlet.

Abstract: A container for receiving and holding effluent water containing oil/grease to be removed has sectional covers. A main sectional cover supports a partially immersed rotatable disk; a drive on the main sectional cover rotates the disk; a trough on the main sectional cover straddles the disk; and a blade on the trough scrapes a side of the disk, to direct oil and grease from the disk along the scraper blade along the trough for collection in a storage container. Efficiencies of construction of the sectional covers, disk and a sensor probe are disclosed.

Abstract: A container for receiving and holding effluent water containing oil/grease to be removed has sectional covers. A main sectional cover supports a partially immersed rotatable disk; a drive on the main sectional cover rotates the disk; a trough on the main sectional cover straddles the disk; and a blade on the trough scrapes a side of the disk, to direct oil and grease from the disk along the scraper blade along the trough for collection in a storage container. Efficiencies of construction of the sectional covers, disk and a sensor probe are disclosed.

Abstract: A grease trap for separating grease and solid waste from waste water. The grease trap includes a tank having a downwardly shaped bottom. An upwardly shaped divider divides the tank into an upper chamber and a lower chamber. A hole near an upper part of the divider allows waste into the upper chamber. An inlet invert in the tank receives incoming waste water, while an outlet invert removes water from the tank. A lid covers the tank. A pipe extends through the lid, upper chamber, and lower chamber for sucking solid waste out of the lower chamber.

Abstract: A solids collector for collecting solids in waste water that are heavier than water includes a roto-molded plastic container having a cylindrical sidewall and a downwardly sloping bottom. An inlet and outlet are connected to the sidewall substantially above the sloping bottom so that solids that are heavier than water in the waste water coming into the container through the inlet have residence time in the container long enough to gravitationally separate towards the bottom. Waste water depleted of solids that are heavier than water discharge from the container through the outlet.

Abstract: A low cost oil, grease removal assembly includes a rotomolded plastic container having an inlet and an outlet; a rotomolded plastic basket support located at the inlet inside the container; a rotomolded plastic outlet baffle located in the container at the outlet; a plurality of container cover sections including a first section to cover the basket support, a second container cover section having an oil, grease removal mechanism downstream of the basket support and upstream of the outlet baffle, and a third container cover section to cover the outlet baffle.

Abstract: An apparatus includes: a commercial kitchen sink having a drain; a trough below the sink for transporting effluent positioned such that there is an air gap between it and the drain; and a plurality of selectively positionable markers on the trough for indicating positions for strainers to collect solids in effluent discharging form the drain. A method of removing solids from an effluent flow from a kitchen sink having a drain hole is also disclosed.

Abstract: A separator separates water and oil. An outer housing has an inner volume and an inner housing. One port in the inner housing receives influent mixed liquids. Another port from the inner housing discharges water outside the outer housing and defines a static liquid level. An outlet above the static level from the inner housing to the inner volume allows oil held in the inner housing to flow to the outlet. Surges of influent temporarily raise liquid levels, so oil passes the outlet to the inner volume. A supplemental separator in the outer housing removes oil from the inner volume.

Abstract: A grease trap for separating grease and solid waste from waste water. The grease trap includes a tank having a downwardly shaped bottom. An upwardly shaped divider divides the tank into an upper chamber and a lower chamber. A hole near an upper part of the divider allows waste into the upper chamber. An inlet invert in the tank receives incoming waste water, while an outlet invert removes water from the tank. A lid covers the tank. A pipe extends through the lid, upper chamber, and lower chamber for sucking solid waste out of the lower chamber.

Abstract: A separator separates water and oil. An outer housing has an inner volume and an inner housing. One port in the inner housing receives influent mixed liquids. Another port from the inner housing discharges water outside the outer housing and defines a static liquid level. An outlet above the static level from the inner housing to the inner volume allows oil held in the inner housing to flow to the outlet. Surges of influent temporarily raise liquid levels, so oil passes the outlet to the inner volume. A supplemental separator in the outer housing removes oil from the inner volume.

Abstract: A grease trap for separating grease and solid waste from waste water. The grease trap includes a tank having a downwardly shaped bottom. An upwardly shaped divider divides the tank into an upper chamber and a lower chamber. A hole near an upper part of the divider allows waste into the upper chamber. An inlet invert in the tank receives incoming waste water, while an outlet invert removes water from the tank. A lid covers the tank. A pipe extends through the lid, upper chamber, and lower chamber for sucking solid waste out of the lower chamber.

Abstract: An apparatus for conversion of kitchen waste grease to a landfill-acceptable solid includes a grease collection cartridge. A mixing baffle within the cartridge has a package with a reactant to convert grease and oil, and water into soap. The apparatus has means for delivering water, grease and oil to the cartridge for conversion to soap.

Abstract: A container for receiving and holding effluent water containing oil/grease to be removed has sectional covers. A main sectional cover supports a partially immersed rotatable disk; a drive on the main sectional cover rotates the disk; a trough on the main sectional cover straddles the disk; and a blade on the trough scrapes a side of the disk, to direct oil and grease from the disk along the scraper blade along the trough for collection in a storage container. Efficiencies of construction of the sectional covers, disk and a sensor probe are disclosed.

Abstract: A container for receiving and holding effluent water containing oil/grease to be removed has sectional covers. A main sectional cover supports a partially immersed rotatable disk; a drive on the main sectional cover rotates the disk; a trough on the main sectional cover straddles the disk; and a blade on the trough scrapes a side of the disk, to direct oil and grease from the disk along the scraper blade along the trough for collection in a storage container. Efficiencies of construction of the sectional covers, disk and a sensor probe are disclosed.

Abstract: An oil/grease removal assembly includes a container having an inlet to receive effluent from a kitchen sink. A drain connection spaced above the container bottom defines a static water level for contained liquid and connects to a sewer. A baffle extends downwardly below the static water level so water can flow below the baffle to the drain, while retaining floating oil/grease. Means intermittently raise the liquid level in the container above the static water level. Floating oil/grease can flow out through a port when the liquid level in the container is raised above the static water level.

Abstract: A kitchen sink installation includes a plurality of adjacent kitchen sinks having drain tailpieces, a manifold pipe mounted substantially horizontally under the sinks and having a length and a plurality of discrete openings along its length, each of the openings facing upward in alignment with and spaced by an air gap from one of the sink drain tailpieces, and an outlet at one end of the manifold pipe adapted to connect to a downstream flow direction of sink effluent.

Abstract: An apparatus for enhancing sanitation in a kitchen equipped with an oil/grease separator includes a barrier made of two vertical portions connected by a horizontal portion to bound a volume between the oil/grease separator and a kitchen wall and prevent the ingress of debris. The vertical portions have lower flanges for affixation to a floor, edge flanges for affixation to the separator and the wall, and horizontal ears at upper ends. The horizontal portion has downward edge flanges for affixation to the separator and the kitchen wall and is readily cut to a length for the oil/grease separator.

Abstract: A low cost oil, grease removal assembly includes a rotomolded plastic container having an inlet and an outlet; a rotomolded plastic basket support located at the inlet inside the container; a rotomolded plastic outlet baffle located in the container at the outlet; a plurality of container cover sections including a first section to cover the basket support, a second container cover section having an oil, grease removal mechanism downstream of the basket support and upstream of the outlet baffle, and a third container cover section to cover the outlet baffle.

Abstract: A low cost oil, grease removal assembly includes a rotomolded plastic container having an inlet and an outlet; a rotomolded plastic basket support located at the inlet inside the container; a rotomolded plastic outlet baffle located in the container at the outlet; a plurality of container cover sections including a first section to cover the basket support, a second container cover section having an oil, grease removal mechanism downstream of the basket support and upstream of the outlet baffle, and a third container cover section to cover the outlet baffle.

Abstract: A grease/water pumping and separating system is provided with a pump mechanism that utilizes a motivating fluid to pump a grease/water mixture. The mixture is sucked into and discharged out of a pumping cavity. A movable biasing boundary, such as a piston, separates the motivating fluid from the grease/water mixture. The pump mechanism pumps the grease/water mixture to a separator unit which separates the grease and water components and directs the grease to a retaining tank and the gray water component of the grease/water mixture to an appropriate outlet.