A disposable filter for a sink including a substantially inverted disposed conical filter having a rounded conical apex and a continuous horizontally disposed circular bottom rim. A circular top rim is continuously disposed on a top surface of the bottom rim of the filter. A concave-shaped indentation is continuously disposed through each of an exterior edge of the bottom rim and an outer surface of the top rim. A plurality of tabs is attached to the outer surface of the top rim. An adhesive layer is disposed on a bottom surface of the bottom rim of the filter. The filter is removably disposed atop an exterior surface of a sink, with an exterior edge of the indentation disposed around an exterior surface of a base of a faucet.

A method for automated cleaning of a filter basket in a bioreactor includes determining permeability of the filter basket. A control unit controls a suction unit for suctioning a residual liquid from the liquid tank, a liquid metering unit for dispensing a liquid having a predetermined liquid volume into the filter basket controls the suction unit to empty the liquid tank by suctioning a filtered liquid volume, measures the volume of the suctioned liquid volume, and sending a first measurement signal to the control unit. The control unit determines a permeability quotient from the volume of the extracted filtered liquid volume to the volume of the dispensed predetermined liquid volume and compares the permeability quotient with a permeability threshold. The control unit then controls a cleaning unit to perform a cleaning process of the filter basket if the permeability quotient is below the permeability threshold.

A system for dewatering a material comprising a first storage for holding a material, the first storage operably connected to a slitter, wherein the slitter receives the material, seperates the material into a plurality of clumps, and deposits the plurality of clumps of material substantially evenly on a conveyor belt, wherein the conveyor belt is partially porous to allow water to pass through but preventing material from passing through the conveyor belt, and wherein the conveyor belt is operable to convey the material from the slitter to a compression zone; the compression zone comprises at least one high pressure press, the at least one high pressure press comprises at least one hydraulic actuator operably connected to at least one compression plate, the at least one compression plate having a top surface, a bottom surface, and plurality of side surfaces, wherein the at least one hydraulic actuator articulates the at least one compression plates to engage the material positioned on the conveyor belt; the bottom surface comprises a recess substantially proximate the plurality of side surfaces, wherein the recess receives a seal when the at least one compression plate actuates to engage the material on the conveyor belt so the seal forms a substantially water-impervious barrier between the at least one compression plate and the conveyor belt defining a cavity in which the material is compressed; at least one knife positioned proximate the at least one compression plate operable to remove material from the bottom surface of the at least one compression plate after a compression cycle; and at least one drain positioned under the conveyor belt to carry water removed from the material away from the conveyor belt.

Systems for removing debris from a water reservoir include a moveable floating skimmer device positioned within the water reservoir and configured to receive floating debris, the skimmer device comprising an adjustable weir for capturing the debris and a receptacle for containing the debris; a discharge pipe connected to the skimmer device, the discharge pipe configured to receive the debris and a first portion of water from the receptacle in the skimmer device; a debris separator fluidly connected to the discharge pipe and configured to receive the debris and the first portion of water from the discharge pipe, the debris separator further configured to separate the debris from the first portion of water; a pump positioned between the discharge pipe and the debris separator and configured to transport the debris and the first portion of water in the discharge pipe to the debris separator via a pump outlet; and a recycle line connected to the debris separator and configured to return a second portion of water that exits the debris separator back to the water reservoir.

A waste management system for plastic or other material floating on the surface and in the subsurface of a body of water. A shredding device will reduce the size of the particles of waste. Ocean water is removed by a drying device. The dried waste material is frozen to a temperature at or below minus fifty degrees Fahrenheit, using liquid nitrogen or other suitable means. The frozen waste material is then pulverized and ground into a powder. The powder may then be sprayed into a gas-filled chamber and heated. Temperature, pressure and humidity are maintained within the chamber for more than one minute. Microwave or other radiation and catalysts may be used to enhance the process of extraction. The processed material is then removed from the chamber. Carbon may be recycled or used as fuel by the ship. Water may be used by the ship or returned to the ocean.

A waste stream is treated by anaerobic digestion. A process is described involves a step of separating solids from digestate, and returning separated solids to a digester. Optionally, there may be a step of solids separation in which larger solids are removed from the digester. A process and apparatus are described for treating waste sludge from a wastewater treatment plant in an anaerobic digester. Feed sludge is thickened or solids are separated from digestate and returned to the digester. Additional co-digestion waste may be added to the digester. The process and apparatus may be used in a retrofit of an existing wastewater treatment plant.

A three way valve adapted to be connected to a water purifier includes a body, an inlet defined in the body for communication with a water source, a first outlet defined in the body to constantly communicate with the inlet, a waterway defined inside the body and between the inlet and the first outlet to communicate the inlet and the first outlet and a second outlet selectively communicating with the waterway. A solenoid valve is mounted to control the communication between the second outlet and the waterway so that pollutant screened by a filtering screen is flushed out from the outlet whenever water is flowing from the inlet to the outlet.

An apparatus and method for selecting and retaining solids in an activated sludge process for the improving wastewater treatment using screens. The screens can be used to separate and retain solids based on size or compressibility. The screens are used to separate and select for slow growing organisms, faster settling organisms, or materials added to absorb, treat or remove constituents in the activated sludge process.

A positive polymer fecal sludge treatment apparatus comprising a trash separator, one end of which is connected with a sludge inlet, and the other end of which is connected with a twin-rotor vacuum water pump. A high-pressure transparent tube is disposed and connected, by a knife valve, between the trash separator and the twin-rotor vacuum water pump. One end of the knife valve is connected with a first material box and a second material box. A first chemical box and a second chemical box are disposed under the first material box and the second material box, and each of the first material box and the second material box is connected with the first chemical box and the second chemical box. The first and second material boxes have a larger volume than a conventional one and thus can store more material and also can perform chemical stirring reaction directly.

A system for treatment of a polluted effluent, includes an outer chamber configured to treat the polluted effluent in mixture with a purification slurry including particles of one or more catalysts and/or organoclays, or a mixture thereof. The outer chamber includes (i) a stirring unit consisting of an engine and a stirrer, configured to mix the polluted effluent and the purification slurry to prevent the particles from sinking without causing a turbulence, (ii) a membrane located at the top of the outer chamber through which a treated effluent passes, while preventing the particles of one or more catalysts and/or organoclays from exiting the outer chamber together with the treated effluent, (iii) a membrane cleaning system configured to remove and collect the particles of one or more catalysts and/or organoclays accumulated on the membrane, and re-introducing the particles back to the bottom of the outer chamber.