Abstract: A wastewater treatment system includes a septic tank having a discharge in flow communication with one or more biofilter containers having filter media therein. Wastewater or effluent from the septic tank is allowed to trickle downwardly through the filter media and each container includes an outlet for discharging the wastewater to the environment or transferred to other treatment facilities.

Abstract: A filter and housing (10) for waste water treatment includes a housing (10) having a plurality of coaxially mounted vertically extending sections adaptable to receive a filter cartridge therein. An upper section (12) is provided with an outlet consisting of at least two coaxially aligned rings (22) of preselected diameters wherein the thickness of the rings and the spacing between the rings is sufficient to receive waste water treatment outlets of different diameters. The filter cartridge is comprised of a stacked arrangement of a plurality of disc-dam units (32) wherein each disc-dam unit (32) is provided with a serpentine configured first dam (46), the first dam extending upwardly from an upper surface of the disc-dam unit, the first dam having terminating ends spaced at outer terminating edges (34a, 34b) of the disc dam unit to define a cord segment therebetween. The terminating ends are connected by a second dam (46) having a height less than the first dam.

Abstract: A filter and housing (10) for waste water treatment includes a housing (10) having a plurality of coaxially mounted vertically extending sections adaptable to receive a filter cartridge therein. An upper section (12) is provided with an outlet consisting of at least two coaxially aligned rings (22) of preselected diameters wherein the thickness of the rings and the spacing between the rings is sufficient to receive waste water treatment outlets of different diameters. The filter cartridge is comprised of a stacked arrangement of a plurality of disc-dam units (32) wherein each disc-dam unit (32) is provided with a serpentine configured first dam (46), the first dam extending upwardly from an upper surface of the disc-dam unit, the first dam having terminating ends spaced at outer terminating edges (34a, 34b) of the disc dam unit to define a cord segment therebetween. The terminating ends are connected by a second dam (46) having a height less than the first dam.

Abstract: A wastewater treatment system includes a septic tank having a discharge in flow communication with a plurality of biofilter containers having filter media therein. Wastewater or effluent from the septic tank is allowed to trickle downwardly through the filter media and each container includes an outlet for discharging the wastewater to the environment or transferred to other treatment facilities.

Abstract: An aerobic treatment system for wastewater is disclosed herein. The aerobic treatment system is comprised of a basin, which receives wastewater through an inlet pipe, the inlet pipe depositing the untreated wastewater to the lower portion of the basin. The wastewater must then flow from the lower portion of the interior of the basin through a fibrous filter and through an outlet filter to the outlet section of the aerobic treatment system. While resident within the lower portion of the basin, the wastewater is treated through aeration by an insertion of air through an air inlet pipe and diffusing the air within the untreated wastewater below the fibrous filter. The entire aerobic treatment system of the present invention is designed such that the filtering mechanisms may be readily removed or cleaned on a routine basis by the user.

Abstract: A filtering apparatus of T-shaped configuration includes a vertically extending filter element receiving tube and a horizontally extending outlet conduit portion. A removable tubular filtering element having a flexible seal surrounding the outer surface of the filter element at a lower end is engagable with an inner surface of the filter element receiving tube. A stationary filter element is disposed at a juncture of the outlet conduit with a central opening in the vertically extending filter element receiving tube wherein the flexible seal of the filter engages with and cleans the particulates from the stationary filter element upon insertion and removal of the tubular filtering element from the filter element receiving portion.

Abstract: A filter and housing for waste water treatment includes a housing having a plurality of coaxially mounted vertically extending sections adaptable to receive a filter cartridge therein. An upper section is provided with an outlet consisting of at least two coaxially aligned rings of preselected diameters wherein the thickness of the rings and the spacing between the rings is sufficient to receive waste water treatment outlets of different diameters. The filter cartridge is comprised of a stacked arrangement of a plurality of disc-dam units wherein each disc-dam unit is provided with a serpentine configured first dam, the first dam extending upwardly from an upper surface of the disc-dam unit, the first dam having terminating ends spaced at outer terminating edges of the disc dam unit to define a cord segment therebetween. The terminating ends are connected by a second dam having a height less than the first dam.

Abstract: A two-piece filtering device for wastewater filtering systems is disclosed wherein the two-piece system is inserted into a tubular casing. The two-piece filtering system is comprised of an outer sleeve filter and an inner primary filter, the primary filter extending downwardly through an opening in the bottom portion of the sleeve filter and also having an opening formed in its end. After insertion into the tubular casing, the two-piece filtering system of the present invention forces effluent or other fluid to be treated upward through the interior of the primary filter, through slots formed in and subsequently through the sidewall of the sleeve filter. Thus, only treated effluent flows outward through the tubular casing outlet opening. The slots may be formed in both the sidewall of the primary filter and the sleeve filter. A seal may be provided between sidewall lower portion of the primary filter and may extend to the internal sidewall of the tubular casing to prevent untreated effluent therebetween.

Abstract: A filter and housing for waste water treatment includes a housing having a plurality of coaxially mounted vertically extending sections adaptable to receive a filter cartridge therein. An upper section is provided with an outlet consisting of at least two coaxially aligned rings of preselected diameters wherein the thickness of the rings and the spacing between the rings is sufficient to receive waste water treatment outlets of different diameters. The filter cartridge is comprised of a stacked arrangement of a plurality of disc-dam units wherein each disc-dam unit is provided with a serpentine configured first dam, the first dam extending upwardly from an upper surface of the disc-dam unit, the first dam having terminating ends spaced at outer terminating edges of the disc dam unit to define a cord segment therebetween. The terminating ends are connected by a second dam having a height less than the first dam.

Abstract: A filtration device for a waste water treatment tank is provided with a level alert device positioned within the filter to provide a warning or alarm when the filter becomes plugged. The level alarm device is positioned so that as the waste water level gets beyond a certain preselected limit an alarm will actuate a micro-switch which is in actuating relation with an alarm device outside the waste water treatment tank.

Abstract: A riser for use with an access opening in a waste water treatment tank is mounted in a top opening in the waste water treatment tank. The riser includes a top portion and an integral bottom portion wherein the top portion is provided with a downwardly extending side wall and the bottom portion is provided with a downwardly extending skirt. The bottom portion is provided with an inner diameter greater than the outer diameter of the top portion and a ring connects the bottom portion to the top portion. The bottom portion is also provided with an inwardly extending flange having an inner terminating end engagable with the outer surface of the top portion. The top portion is provided with lugs at circumferentially spaced positions for engaging relation with slots in the flange portion for connecting adjacent risers in tandem.

Abstract: A test assembly for permitting the sampling of the effluent of a waste water treatment apparatus is comprised of at least two parallel testing lines, one testing line being in flow communication with effluent that has been filtered through one type of filter and the second testing line being in flow communication with effluent that is unfiltered or has been filtered through a second type of filter. At least one positive shut-off valve is provided so each testing line can be shut off when effluent is passing through the other testing line.

Abstract: A filter device for separating solid material from a liquid includes a filter housing with vertically extending removable sidewalls wherein at the location of the removable sidewalls connections are provided to receive two vertically extending sidewalls in spaced parallel relationship whereby a fluid impermeable sidewall may be inserted into the circumferential section of the housing when the liquid permeable section is removed for cleaning without interfering with the continual operation of the filter device. Moreover, the filter device of the present invention may be a first filter or pre-filter in a multi-stage filter system wherein a second filtering device is received within the first filter, the second filtering device includes a plurality of first tubular filters having an open bottom end and a closed top end and a second tubular filter centrally disposed of the first tubular filters in flow communication therewith.

Abstract: A gas baffle for a waste water treatment plant outlet includes a conically-shaped deflector cone and an elongated tubular member affixed to an inner surface of the deflector cone. The elongated tubular member is provided with at least one flow-through opening through a wall of the tubular member and an opening in an opposed end of the tubular member. The opposed end of the tubular member is of a preselected size to be received within the inlet to an outlet tee of a waste water treatment plant.

Abstract: A waste water filtering apparatus includes a vertically extending filter housing having a plurality of filter tubes disposed therein. At least one of the filter tubes has an opening in the bottom end thereof and is closed at the top wherein waste water to be filtered flows in through the interior of the filter tube and out through openings in the walls of the filter tube into the interior of the filter housing. A second filter tube is provided with a closed bottom end and an open outlet end in flow communication with a discharge outlet from the filter housing. The second filter tube is in spaced parallel relation with the first filter tube whereby water flowing in the interior of the housing flows into the second filter tube and flows upwardly and out of openings in the top end of the filter tube which is in flow communication with the outlet discharge of the filter.

Abstract: A filter device for separating solid material from a liquid includes a filter housing with vertically extending removable sidewalls wherein at the location of the removable sidewalls connections are provided to receive two vertically extending sidewalls in spaced parallel relationship whereby a fluid impermeable sidewall may be inserted into the circumferential section of the housing when a liquid permeable section is removed for cleaning without interfering with the continual operation of the filter device.

Abstract: A filter device for use in a waste water treatment system including a filter element of two-piece construction disposed within a filter casing with a fluid chamber therein defined by an outer surface of the filter element and the inner surface of the filter casing. The filter casing has a central opening in the bottom which extends upwardly and is in flow communication with an outlet discharge from the tank. The filter element includes a first filter section having a main body of U-shaped cross-section with opposed outwardly extending L-shaped portions at each terminating end of the U. Each L-shaped portion is provided with a first locking device. A second filter section is of substantially flat configuration with the terminating sides of the second filter section having a second locking device therealong for mating with the first locking device of the first filter section.

Abstract: A filter device useful in continuous separation of solid matter from a liquid, such as liquid wastewater, where the filter includes a tubular filter element with a series of slots of selected width extending through the tubular element. The filter element has a longitudinally extending central opening with a fluid inlet therein and is received in a first tubular casing with an annular area defined between the tubular filter element and the first casing so the central opening is open to receive liquid to be filtered, liquid being filtered as the liquid flows outwardly through the slots from the central opening to the annular area. A seal is provided between the tubular element and the inside of the first casing at a location below the slots in the tubular element to prevent unfiltered wastewater from entering the annular area.