A form for a plastic lined septic system distribution box is configured to receive a fill material. The form includes a jacket, a plastic core, a plastic inlet ring, and a plastic outlet ring. The jacket defines an exterior wall and exterior floor of the distribution box. The core defines an interior wall interior floor of the distribution box. The inlet portal ring and outlet portal ring extend between the core interior wall and the jacket exterior wall. The core and jacket are arranged to leave a space therebetween to receive the fill material, and the core is configured to serve as the interior wall and interior floor of the distribution box and to line the fill material for the distribution box during use.

A system and method for monitoring disposal of wastewater in a disposal well includes: an event monitor sensor configured to identify a wastewater disposal event; and a second sensor configured to collect data about one or more characteristics of the wastewater during the wastewater disposal event. The data from the second sensor at the disposal well is analyzed to determine a classification of the wastewater, which is then reported to an operator or another interested party.

The embodiments herein disclose a method and apparatus for mixing sludge retained in a digester. A jet nozzle assembly for mixing contents of a vessel is used. The jet nozzle assembly having a central outlet pipe terminating at a jet nozzle, a low pressure nozzle assembly disposed concentrically about the central outlet pipe, the low pressure low pressure nozzle having a plurality of openings disposed circumferentially about the low pressure nozzle assembly. The plurality of openings are an axial distance from the outlet jet nozzle.

A water treatment system includes: a first vessel having adsorbent materials that form a filtering bed; a second vessel in fluid communication with the first vessel and which includes adsorbent materials that form a filtering bed; an underdrain collection system having ring headers formed below the first and second vessel; a liquid control system in fluid communication with the first vessel, the second vessel, and the underdrain collection system; adsorbent material influent lines; water wash-down lines; raw water lines; and adsorbent material effluent lines, each adsorbent material effluent line having an inlet attached to a bottom of the first or second vessel and an outlet that extends out from the first or second vessel and which is positioned above the ring headers of the underdrain collection system.

A regulating tank of a wastewater treatment system includes a tank member having an annular wall to receive wastewater, a first overflow weir connected to an interior side of the annular wall of the tank member, and a first pump device having a first pump and a first return pipe. The first pump of the first pump device pumps wastewater in the tank member to the first overflow weir through the first return pipe, and then the wastewater flows back to the tank member from the first overflow weir to disturb the wastewater in the tank member.

A bathroom system includes a shower system, a sink system, a gray water tank, a toilet, a first conduit, and a second conduit. The shower system includes a drain ring configured to collect gray water from the shower system. The gray water tank includes an internal filtration system and is configured to filter and store gray water. The gray water tank is configured to introduce a chemical into the gray water and is configured to draw electrical power from a power supply. The first conduit is coupled to the gray water, it connects the shower system and the gray water tank, and it is configured to transfer the gray water from the drain ring to the gray water tank. The second conduit is configured to transfer the gray water from the gray water tank to the toilet to provide water for flushing.

A fluid purification system has cells whose purifying capability can be regenerated. Some of the cells are arranged in series to reach a high level of purification. An automatic valve network is controlled to cycle the cells in a way that levels the loads on each, thereby maximizing the service interval for replacing expired cells, enabling all of the cells to be replaced at the same time after having each contributing approximately equally to the purification load, and operated such that at any one time, at least one cell is regenerated so as to enable continuous up-time.

The invention discloses a double-tank oxidation pond for evaluating catalytic ozonation efficiency, comprising detachable tank bodies made of organic glass, movable ozone aeration pipes and sampling holes. Each tank body has three sections. The height of ozone aeration tube and the number of the holes can be adjusted. The holes are distributed at different positions of the tank bodies for real-time in-situ sampling. It is easy to observe the distribution profile of the gas, liquid and solid phases in the tank bodies. The square double-tank structure is similar to actual production process, and thus the experimental data is easy for computer simulation to enlarge to the actual production process. The size of the ozone aeration pipe and the position of holes in the tank can be adjusted to evaluate the catalytic ozonation effect of sewage treated by different aeration ways and aeration heights.

In a method for treatment of waste water, a module (5) is used which includes a number of carrier elements (7) arranged in a sandwich structure and configured to be perfused a flow of waste water. The module (5) further has a number of partitions (8) arranged between carrier elements (7) and configured to direct the flow of waste water through the module (5). The module (5) may also be used in a system together with an air supplying device (20) and a waste water vessel. The air is supplied to the module (5) by the air supplying device (20).

The present invention describes a system comprising a water recirculation device 1 allowing for purification and recycling of water or separation of water, said water recirculation device 1 comprising a water treatment unit 2 and a sensor system 3 arranged for measurement of at least water quality and which sensor system 3 is connected to a control unit, and wherein the system also comprises at least two separation points, wherein one first separation point 30 is positioned within the water recirculation device 1 to allow for recirculation of clean water or separation of a first separated stream of water not intended to be recirculated in the water recirculation device 1, and wherein one second separation point 30 is arranged for separation of the first separated stream of water in at least one high quality water stream and in one low quality water stream, and wherein a decision of recirculation or separation is made by the control unit based on the measurement of water quality.