An automated waste water treatment system includes a collection tank constructed to hold waste water, a first flow line connected to the collection tank to output the waste water from the collection tank, an electrocoagulation unit that receives the waste water and outputs the waste water as coagulated waste water, a polymer dosage tank to provide a polymer dosage to the coagulated waste water to produce and output flocculated waste water. An air grid of the electrocoagulation unit, the latter housing a plurality of electrodes, increases the lifespan and efficiency of the electrodes to perform electrocoagulation of the waste water. A clarifier connected to the flow line receives the flocculated waste water and produces sludge-free waste water and concentrated sludge, a series of filters to output filter-treated water, and an ultrafiltration system that receives filter-treated water and outputs ultrafiltration-treated water to a reverse osmosis system.

A waste oil handling apparatus features a tank with draining compartments for receiving waste oil containers in inverted and elevated positions above the tank floor. Multiple drain ports communicate with the tank interior at different elevations relative to the floor for draining accumulated contents of varying density that have gravitationally separated into distinct layers at those elevations. The ports feature adjustable fittings for adjusting the levels from which the layered contents are drawn through the ports from the tank interior. The tank has a large cleanout access by which personnel can access the tank interior for thorough cleanout. The compartments are organized into one or more troughs, each having a pivotal lid thereon. Lift brackets under the floor enable lifted transport of the tank by pallet jack or forklift.

A launder cover system for reducing or eliminating sunlight exposure so as to prevent algae growth in a tank such as a clarifier tank. The launder cover system generally includes a plurality of support members and a plurality of launder covers which are each independently pivotably connected to a tank wall of a tank, such as by using a mount. The support members are each pivotably connected to the tank wall by a pivot connector and the launder covers are each pivotably connected to the tank wall by a hinge connector. Each support member is positioned between a pair of launder covers, and each launder cover is positioned between a pair of support members. The support members function to support the launder covers in a raised or lowered position. A launder support may be connected to the channel wall to support the launder covers in their lowered positions.

Settling devices for separating particles from a bulk fluid with applications in numerous fields. The particle settling devices include a first stack of cones with a small opening oriented upwardly or downwardly. Optionally, the settling devices may include a second stack of cones with a small opening oriented downwardly or upwardly. The cones may be concave or convex. These devices are useful for separating small (millimeter or micron sized) particles from a bulk fluid with applications in numerous fields, such as biological (microbial, mammalian, plant, insect or algal) cell cultures, solid catalyst particle separation from a liquid or gas and waste water treatment.

A system is provided for covering a launder channel of a clarifier tank, the launder channel having a tank wall and launder channel wall. The system comprises a mounting section connected to the launder channel wall, a hinge, and an openable cover panel, movable between a closed and open position. The mounting section includes an angled resting structure for supporting the cover panel, when in the open position, away from the mounting section.

A side-flushing mechanical filter system includes a spring positioned within a pipe and a plurality of plates attached to the spring, each plate defining at least one hole, and a rod positioned partially within the pipe, a proximal end of the rod attached to a distal-most plate and a distal portion of rod extending from the distal end of the pipe. A major face of each plate is configured to arrest sediment from water flowing into the pipe via a first water inlet while the holes defined by the plates enable filtered water to flow therethrough and out of the first water outlet when the first water inlet and first water outlet are opened. During cleaning of sediment, graywater flows into the pipe via the second water inlet and over the plates while a user moves the rod to dislodge sediment from the plates and toward an outlet.

An assembly for diffusing gas from a first slurry having an open-bottomed housing having an opening for conveying a second slurry from inside of the housing to outside of the housing. The assembly includes one or more intake conduits extending through an upper mid-portion of the housing for receiving the first slurry, and a gas diffusing channel formed in the housing for conveying diffused gas from the liquid from inside of the housing to outside of the housing. The assembly includes a dumping assembly having a dump valve used to convey fluid from an upper layer of fluid located inside of the housing to outside of the housing. The assembly may include a recirculation pump and a suction conduit coupled to the pump for pumping fluid (dyed fluid) from inside of the housing. The assembly is configured to be partially submerged in liquid, such as in a tank.

A system for separating solids from a fluid includes a containment vessel having a V-shaped tank in fluid communication with an agitated overflow tank. Baffles within the V-shaped tank provide a series of zones where the fluid is deposited for processing. A shaftless auger at the bottom of the V-shaped tank transfers solids to an area where they are pumped to a first hydrocyclone assembly associated with a first shaker. Overflow from the hydrocyclone assembly and underflow from the first shaker is further processed by a second hydrocyclone assembly associated with a second shaker. Overflow from the second hydrocyclone assembly and underflow from the second shaker are deposited into overflow tank which contains the cleaned fluid.

Disclosed herein is a device for improving water quality, said device comprising: an inlet for inflow of liquid into the device; a hydraulic circuit for receiving liquid from the inlet, the hydraulic circuit comprising at least a first tank and a second tank, wherein the first tank is upstream of the second tank and wherein one of said first and second tanks is nested within the other of said first and second tanks; an outlet at a downstream end of the hydraulic circuit for discharge of liquid from the device; one or more contaminant separation elements in the hydraulic circuit for separation of contaminants from liquid passing therethrough using at least one of: gravitational separation; sized-based filtration; chemical separation; magnetic separation; electrolytic separation; and adsorption or attraction-based separation, wherein the first tank is a settlement tank for gravitational settlement of contaminants from the liquid.

A clarifier can comprise a floor, inner and outer walls that each extends upwardly from the floor such that a tank is at least partially defined by the inner wall and a launder channel is at least partially defined between the inner and outer walls and is disposed along at least a majority of a periphery of the tank. A launder cover comprising one or more flexible sheets can be disposed over at least a majority of the launder channel. Each of the sheet(s) can have opposing inner and outer edges, the inner edge coupled to the inner wall and the outer edge coupled to the outer wall, and can be configured such that, when a single one of the inner and outer edges is decoupled from the inner and outer walls, the sheet is deformable to at least partially uncover the launder channel.