A bioreactor for a water treatment system includes a tank configured to receive an influent liquid, a separator structure positioned in the tank, the separator structure having a frustoconical shape and defining a downwardly-facing opening proximal to or at a bottom of the separator structure, an interior of the separator structure being in communication with the tank, external to the separator structure, at least via the opening, an aeration vent positioned proximal to a bottom of the tank and configured to direct air into the tank, but not directly into the interior of the separator structure, and an effluent outlet communicating with the interior of in the separator structure, proximal to a top of the separator structure, a relatively clean effluent liquid, in comparison to the influent liquid in the tank, exiting from the separator structure via the effluent outlet.

A small sewage treatment plant comprises a first sewage tank in which a preliminary clarification takes place due to the sinking of solid particles to the bottom of the first sewage tank, and a filtering device in a second sewage tank, which filtering device comprises several filters and to which the pre-clarified sewage is fed from above for further clarification. The filtering device has a rotary plate which is rotatable about a vertical axis of rotation and stores several filter containers, each filter container including several filters arranged above each other. In a lid of the second sewage tank, a closable tank opening is provided, via which at least one filter is removable when the associated filter container is opposite to the tank opening after a corresponding rotation of the rotary plate.

A septic tank for storing and treating wastewater may be provided. In one implementation, a septic tank, having a first lengthwise end, an opposing second lengthwise end, a top, a bottom, a horizontal centerplane, and a vertical lengthwise centerplane, and a basic wall thickness T may be provided. The septic tank may include corrugated walls and an oblong flange lying nominally in the horizontal centerplane. The tank may further include opposing endwalls, each endwall integrally connecting an end of a first sidewall to an end of a second sidewall. The endwalls may include an endwall top, an endwall side running from the upper half tank flange to the endwall top along an inward slant, and the endwall side may along a curve which is a semicircle or a portion of a curve.

The systems and methods herein are directed a wastewater management system which can be used on a housing unit. The wastewater management system includes a septic tank, pump tank, pressure tank, and pods residing within a drainfield.

A grey water treatment system includes a first tank configured to receive grey water via a grey water supply conduit and that comprises an overflow, a second tank configured to store grey water, and at least one transfer conduit configured to at least transfer grey water between the first tank and the second tank. A control is configured to maintain a water level in said first tank sufficiently close to the overflow to allow floating contaminants to pass over the overflow. A method of treating grey water includes: receiving grey water in a first tank of a grey water treatment system; transferring grey water via at least one transfer conduit between the first tank and a second tank of said treatment system; and controlling a water level in said first tank sufficiently close to an overflow of said first tank to allow floating contaminants to pass over the overflow.

A bioreactor for a water treatment system includes an aerator tank configured to receive an influent liquid, and a clarifier positioned in the aerator tank, the clarifier having a generally conical shape and defining a downwardly-facing opening. An interior of the clarifier is in communication with the aerator tank, external to the clarifier, at least via the downwardly-facing opening, and wherein the clarifier is positioned non-concentrically with the aerator tank. The bioreactor further includes a plurality of aeration vents positioned proximal to a bottom of the tank and configured to direct air into the aerator tank, and an effluent outlet positioned in the clarifier. A relatively clean effluent liquid, in comparison to the influent liquid in the aerator tank, exits from the clarifier via the effluent outlet.

Provided is a water treatment system 50 having: a first unit 100 having a dirty water generation source; a second unit 200 designed to purify water, the second unit 200 having at least one of a purification tank, a solid-liquid separation tank, and an oil separation tank, and conducting a primary treatment of contaminated water that is received; and a third unit 300 having a contaminated-water inlet, a primary reception tank, an intermediate treatment tank, a reserve treatment tank, a circulation treatment tank, a concentrated water and impurity tank, and an aseptic drainage tank. Each of the first to third units is equipped with a sensor and a valve. The third unit is furthermore equipped with a control device and at least one of a pump, a sterilization device, a disinfection device, and a sterilizer.

The present invention describes an automated, transportable and energy-efficient with a hybrid power capacity wastewater treatment facility that allows for the disinfection of contaminated sanitation wastewater in order to preserve the environment and provide a greater availability of this resource and its reuse. The facility described in the present invention allows to carry out a process for water treatment in five stages based in equalization, oxidation sedimentation, disinfection and filtration. Moreover, it has a photovoltaic feeding system and a night lighting system that allows the operation of the facility in a hybrid way during the day and the night, as well as a structure that allows its easy transportation. Finally, the facility has an automated system comprised by a control panel that allows to manage and monitor every operational condition of it, that integrates and sends all processed programmable information to a programmable logic controller.

A wastewater treatment system is a septic tank adjacent to an aeration chamber. The aeration chamber has a tertiary baffle and a circular current of fluid wherein the circular current produces a down flow current of liquid past the tertiary baffle. This current prevents suspended particles from passing through the tertiary baffle.

A system to treat effluent in a septic tank includes filter sections having kerfs. A strainer removes solid debris from the filter for removal without allowing the solid debris to pass. An aerator includes an eight to twelve inch diameter pipe 4 to 6 feet tall matching tank invert height. The aerator has bottom inlet holes, each with an elbow on the outside with a vertical standpipe taking effluent from the clear zone, sending it through the aerator. Air inlet piping is attached to a “T” shaped air diffuser producing bubbles traveling upward through plastic media. Aerator height is field adjusted to approximately 2 inches below static water level. Holes in the upper sidewalls just below the top let air bubbles out sideways. At its top, the aerator has a slotted, sliding, anti-turbulation collar adjusted to be one to two inches above the static water level.