A portable liquid filtration device includes a GPS tracking unit, a portable housing, an inlet configured to receive non-potable water, and an ozone chamber positioned within the portable housing. The ozone chamber is configured to generate an ozone gas from received air. The device also includes a filtration duct positioned within the portable housing and downstream from the inlet. The filtration duct includes at least one oxidation chamber configured to mix the received water with the ozone gas, and at least one ultraviolet (UV) chamber downstream from the at least one oxidation chamber and including a UV lamp positioned adjacent the water within the filtration duct. The device further includes an outlet positioned on the portable housing and downstream from the filtration duct. The filtration duct is operable to output at least 150 liters per hour of the received water from the outlet as potable water.

A system for recovering fat, oil and grease and removing biochemical oxygen demand and total suspended solids from brown grease or trap grease. In some cases, the system includes an integrated inlet coarse screen, primary circular zoned dissolved air and ozone flotation unit, bio-dissolved air and flotation unit, and three-phase centrifuge.

The invention relates to a method for carrying out biological purification of wastewater with the aid of activated sludge, in which the wastewater is introduced into a tank for phosphor elimination (P tank), then into an activated sludge tank (B tank) and then into at least one sedimentation and recirculation tank (SU tank), in which a number of operating cycles are carried out, including a sludge return phase, a recirculation phase, a pre-sedimentation phase and a draw-off phase (S phase, U phase, V phase, and A phase respectively), wherein the method further includes the elimination of settleable solids of the inflow, the storage of the produced primary and excess sludge and the reduction of the rising of the water level in the wastewater purification system by using an additional tank (S tank), wherein the S tank is hydraulically connected with the P tank, the P tank with the B tank, and the B tank with the at least one SU tank, wherein the wastewater is first introduced into the S tank, then into the P tank, then into the B tank and subsequently into the at least one SU tank, wherein in the S phase the thickened activated sludge is introduced from the at least one SU tank into the P tank, in the U phase the volume of the at least one SU tank is mixed, in the V phase the activated sludge is settled, and in the A phase the treated wastewater is flowing out of the system and wherein the settled sludge of the S tank is transported from time to time to another special treatment plant.

A portable drinking water filter system, such as a pitcher, having a sleeve and a floatable body including a filter opening configured to receive a water filter, the floatable body having a seal extending outward from an outer surface of the floatable body. The floatable body is disposed in a sleeve cavity such that a body seal engages the sidewall and restricts water from passing between the floatable body and the sidewall. The seal is configured to create friction with the sidewall, wherein the friction created when the floatable body rises in the sleeve is different than when the floatable body lowers in the sleeve. The friction created when the floatable body rises in the sleeve is greater than when the floatable body lowers in the sleeve, allowing the floatable body to auto-retract toward a cavity base without burping.

A portable water filtration system that is configured to provide potable water from a contaminated water source. The portable water filtration system includes a pre-treatment module and a polishing module that are fluidly coupled and contained within a stackable housing configuration. The pre-treatment module has disposed therein a pump, two solenoid valves, a first filter and a pair of ultra-filters wherein the aforementioned elements are all fluidly coupled utilizing plastic tubing. Water is cycled through the elements of the pre-treatment module and is then directed to the polishing module. Disposed within the polishing module are four filters that have filtration material therein operable to filter material within a range of 0.0002 to 0.0009 microns. The portable water filtration system is operable in a filtration mode and a flush mode.

A tank is disclosed as having a tub therein that divides the volume of the tank into an anoxic chamber inside the tub and an equalization chamber outside of the tub. The anoxic chamber anoxically treats wastewater while the equalization chamber equalizes fluctuations in wastewater influent as well as provides a holding space for wastewater if power to the tank is cut off. The tank can be part of a system for treating wastewater, such as one with an anaerobic tank having an anaerobic chamber for anaerobically treating wastewater, an aerobic/filtration tank having a filtration sub-tank therein that divides the volume of the tank into a filtration chamber inside the sub-tank and an aerobic chamber outside of the sub-tank. The aerobic chamber can aerobically treat wastewater while the filtration chamber has a membrane unit for filtering wastewater.

A portable liquid filtration device includes a GPS tracking unit, a portable housing, an inlet configured to receive non-potable water, and an ozone chamber positioned within the portable housing. The ozone chamber is configured to generate an ozone gas from received air. The device also includes a filtration duct positioned within the portable housing and downstream from the inlet. The filtration duct includes at least one advanced oxidation (AO) chamber configured to mix the received water with the ozone gas, and at least one ultraviolet (UV) chamber downstream from the at least one AO chamber and including a UV lamp positioned adjacent the water within the filtration duct. The device further includes an outlet positioned on the portable housing and downstream from the filtration duct. The filtration duct is operable to output at least 400 liters per hour of the received water from the outlet as potable water.

A tank suited for use as a septic tank or for otherwise holding or treating water has a top hatchway large enough to enable an adult person to enter the tank. The hatchway is closed by a lid which has a port with a removable cover, where the port that is large enough to enable through-passage of a suction line for cleaning the tank, but small enough to prevent a child from entering the tank. Preferably the port area is less than 6 percent of the effective area of the lid and the centerline of the port lies at a location which is between 20 to 80 percent of the radius of the lid.

A portable water filtration system that is configured to provide potable water from a contaminated water source. The portable water filtration system includes a pre-treatment module and a polishing module that are fluidly coupled and contained within a stackable housing configuration. The pre-treatment module has disposed therein a pump, two solenoid valves, a first filter and a pair of ultra-filters wherein the aforementioned elements are all fluidly coupled utilizing plastic tubing. Water is cycled through the elements of the pre-treatment module and is then directed to the polishing module. Disposed within the polishing module are four filters that have filtration material therein operable to filter material within a range of 0.0002 to 0.0009 microns. The portable water filtration system is operable in a filtration mode and a flush mode.

An apparatus for converting the septic tank into an aerobic treatment system has a clarifier with a collapsible wall which allows the clarifier to fold in order to pass through the opening of the septic tank and to unfold upon entry into the septic tank, an aerator having a size suitable for passing through the opening of the septic tank in position between the wall of the clarifier and a wall of the septic tank, and an air pump connected to the aerator so as to pass air to the aerator. The clarifier has an opening at a bottom thereof having a diameter no greater than a diameter of the top of the clarifier. The effluent outlet pipe is received in an aperture formed in a wall of the clarifier.