Abstract:
A tunnel device for use in single pass sand filtration (SPSF) systems, characterized by its curved lateral walls which meet at an apex channel having a flat top, open bottom, and side vented walls. The interaction between the characterizing components and vertically streamed treated wastewater from a pressurized pipe results in the maximized lateral transport of the treated wastewater towards the side vented walls and the adjacent soil strata therethrough which contains aerobic microbial communities able to decompose organic wastewater material thereby delivering enhanced wastewater treatment and water volume reductions through evapotranspiration.
Abstract:
Storage tanks (10, 50), for example, underground septic tanks, and their methods of fabrication are provided. The tanks (10, 50) include a substantially liquid impermeable plastic vessel (12, 52) having a top, a bottom, and sides; a concrete container (14, 55) encasing and retaining the plastic vessel, the concrete container contacting the bottom and at least partially contacting the sides of the plastic vessel; and at least one opening (23) for receiving effluent, for example, waste effluent, into the plastic vessel. The methods of fabricating the tanks (10, 50) include positioning a plastic vessel into an enclosure (54); introducing concrete (60) into the enclosure about the plastic vessel (12, 52); allowing the fluid concrete to cure to provide a substantially solid concrete container (55) about the plastic vessel (12, 52); and removing the plastic vessel (12, 52) having a concrete container from the enclosure (54). Vessel shape retaining devices (151, 153) are also disclosed. Aspects of the invention are uniquely adapted to underground storage.
Abstract:
The present invention relates to a method and apparatus for treatment of waste water, in particular black and grey household waste water. A water treatment apparatus for the treatment of household waste water is disclosed, with the apparatus comprising a plurality of chambers for receiving the waste water, the chambers arranged to allow the waste water to undergo a series of treatments to produce a treated effluent, wherein the plurality of chambers includes at least one anaerobic chamber adapted to treat said waste water with anaerobic processes, and at least one aerobic chamber adapted to treat said anaerobically treated waste water with aerobic processes.
Abstract:
An urban rainwater collecting and road flooding preventing ground water recharge system is disclosed. It comprises garages on the ground arranged widely in the urban area and cover plates provided above roadways so as to form a rainwater collecting system, including roofs of the garages on the ground, the cover plates provided above roadways, and the ground of gardens, which involves the entire urban area. A rainwater cistern is provided on the ground of the garden, and all rainwater is stored in it. The water level of the upper cistern of the rainwater cistern can be maintained perennially. A retention wall is provided on the periphery of the garden, and then the flooding of the urban roads caused by the accumulated rainwater is prevented with the ground water being recharged by the exceeded rainwater permeated in the ground.
Abstract:
A mini sewage treatment plant for building into an existing septic tank and of the kind consisting of a vessel which is divided into a first processing chamber, a sedimentation chanber with inclined bottom and separation plates together with sludge outlet at the lower end part of the chamber, and a discharge for effluent at the upper end of the vessel, the three chambers being connected by overflows, where the basic outline of the vessel is triangular, and at each corner there is placed a pipe for accommodating means for pumping and aeration of sewage (A), for level control (B) and for dewatering sludge (C), respectively, where the first and the second pipe (A and B) are disposed in the first processing chamber, and the third pipe (C) is disposed in the same corner as the discharge chamber and constitute the sludge outlet of the sedimentation chamber in the lower end part of the chamber.
Abstract:
악취 차단 정화조가 개시된다. 악취 차단 정화조는, 내부에 오수가 저장되는 저장 공간이 형성되고 측면에는 오수가 배출되는 배출부가 형성된 정화조 바디와, 정화조 바디의 내부로 연장되며 연장된 단부는 정화조 바디의 내부에 저장된 오수의 수면 내부에 위치되며 내부에는 오수가 이동되는 오수 유로가 형성된 오수 유입관을 포함한다. 여기서, 오수 유입관의 단부에는 확관부가 형성될 수 있다.
Abstract:
Ein Behälter (10) aus Kunststoff mit einem Aufnahmevolumen von 2000 bis 10000 l umfasst einen oberen Behälterteil (14) und einem unteren Behälterteil (12) und mindestens eine Klemmvorrichtung (17), die beide Behälterteile (12, 14) dichtend miteinander verbindet. Weiterhin wird ein Kunststoff-Blasformverfahren beschrieben, welches zum Herstellen des Behälters (10) dient.
Abstract:
Systems, apparatus and methods are described that control and manage wastewater collection and treatment. One or more sensors monitor and measure levels of contaminants, other chemicals and or environmental conditions in a well of a collection station and/or in inflow and/or outflow mains. An additive that can include one or more of ozone, oxygen, a bioagent, bleach, peroxide and other chemicals, and selected to treat chemicals and/or contaminants in wastewater, can be mixed with waste water in the well and the main. A dispersion assembly deployed within the collection station is adapted to mix and spray the waste water and additive onto a wall of the well or surface of a body of wastewater in the well. A processor configured to control the rate at which the additive is provided to the dispersion assembly or force main based on measurements of contaminants received from the first and second sensors.
Abstract:
A septic tank is formed of a blow molded body (10) formed of plastic material. The body includes a plurality of integral ribs (12) and compression molded flanges (14) to provide rigidity. Covers and riser systems are also included.
Abstract:
A grey water collection system includes a tank (A, A') for collection of grey water having a sewer outlet (2, 2') and a blower (11, 11') for introduction of air into the tank. The blower (11, 11') is operated to raise the level in the tank above the sewer outlet (2, 2'). Further, the grey water collection tank may incorporate a disinfection device (39) for disinfecting the stored grey water. In particular, the grey water collection tank (A') may include an antechamber (38), grey water storage compartment (8') and a valve (41) controlling the liquid flow between the antechamber and the storage compartment. A chlorinating device (39) may be provided in communication with the antechamber (38). The flow rate through the valve (41) may be adjustable. In a screening device for grey water, a screen (36) has one or more sloped walls converging downwardly towards an opening and a distributing conduit disperses grey water onto the one or more walls. A waste collection conduit (2') is adjacent the opening. The grey water system may also be operable to periodically or selectively introduce the contents of a urine collection vessel (9) into the grey water collection tank. The system may be modular wherein grey water tanks of the system include a filter compartment (5') of a standard size and a grey water collection compartment (8') which is selectable from a variety of sizes, each of which is compatible with the filter compartment (5'). The grey water may be distributed across a garden site having a sub-layer of zeolite.