A method of purifying nutrient contaminated water for safe reuse or discharge, while recovering the fertilizer value of the contaminants. The system includes digestion tanks for the conversion by appropriate fauna and aerobic bacteria of dissolved or suspended organic contaminants into dissolved inorganic contaminants, which are flow connection with biofiltration tanks for the removal by plant root uptake of the dissolved inorganic contaminants. Generally, the digestion and biofiltration tanks are configured wherein contaminated water is conducted between one or more digestion tanks containing detritivorous or omnivorous fauna which feed on suspended contaminants and pathogens and aerobic bacteria which feed on the excreta of the fauna which will solubilize and decompose organic contaminants, oxidize nitrogen compounds into nitrates and competes with pathogens, and one or more biofiltration tanks containing pants potted in the water which uptakes dissolved inorganic contaminants.

A system and method for collecting heat generated by the microbial action in a septic system effluent disposal area that is then transferred to a building structure where it may provide, for example, the temperature differential for a heat exchanger in a heat pump, thereby being the energy source for heating and cooling buildings.

An ultraviolet (UV) light disinfection system for treating water prior to its delivery to a water usage device. One or more UV light emitting diodes (LEDs) are positioned within a water system floor interface in order to expose water flowing through the system to germicidal light treatment.

A system and method for treating fluid by providing a series of concentric chambers, tanks or tubes so that a fluid flow and treatment efficiency is maximized while size, complexity and cost of manufacture and operation is reduced. In one aspect, a generally non-turbulent fluid flow is received and directed in a radial sequential direction through the series of chambers. Each chamber is configured to house a filter assembly or media that provides a level of treatment for the fluid flow while directing the fluid toward a subsequent concentric filtration chamber. The last sequential chamber directs the fluid flow toward a fluid outlet and reduces the turbulence of the flow generated during the filtration process. The system can be configured to direct the fluid flow in inward or outward radial directions according to various arrangements and during filtration or back flushing operations.

The present inventive concept relates to a device (500) utilizing water for a group of cleaning procedures, wherein each cleaning procedure (100) in the group of cleaning procedures comprises a plurality of cleaning phases (102, 104, 106, 108) each using cleaning phase water having a substance content with respect to a number of substances, wherein the device (500) comprises a sensor arrangement (554) configured to determine a first substance content (110) with respect to at least one of the number of substances in first cleaning phase water from a first cleaning phase (102) being part of the plurality of cleaning phases (102, 104, 106, 108); wherein the device (500) is configured to end the first cleaning phase (102) if a pre-determined condition related to the first substance content (110) and associated with the first cleaning phase (102) has been met.

The present invention describes a liquid recycling system and method for purifying and either recirculating or discarding of liquid. The system includes a liquid input line, a tank, and a circulation pump for providing recirculation of liquid from the tank. A filter and a heater are used to treat liquid from the circulation pump. A valve is provided to direct liquid either to a shower head or faucet, or back to the tank. Additional plumbing and components can be used to provide multiple independent recirculation loops with the tank. An electronic controller can be used to control components of the present invention, where a user could interface with the controller via a control panel or a software application accessed by a portable electronic device.

A reactive oxygen species formulation is provided by preparing a peracid mixture in an activated pH range including mixing alkaline hydrogen peroxide solution with acyl donor in molar proportions with an excess of the acyl donor to hydrogen peroxide. The hydrogen peroxide and acyl donor are reacted to produce a peracid mixture comprising no more than a small quantity of hydrogen peroxide, and pH is adjusted as needed to initially prepare the formulation in the activated pH range. Water treatment with the reactive oxygen species formulation facilitates formation and separation of solids removable during clarification, and which may be followed by a second treatment with the reactive oxygen species formulation for antimicrobial treatment of clarified water.

Disclosed herein is a plasma generator capable of stably performing the discharge and an appliance having the same, wherein the plasma generator is configured to generate the discharge by plasma. The plasma generator includes a first case configured to store water to be treated; a second case disposed inside the first case and provided with a body having opposite sides opened, and a cover covering opened one side of the body; a first electrode disposed such that at least thereof is immersed in the water to be treated stored in the first case; and a second electrode disposed inside the second case. The second electrode is apart from a water surface of the water to be treated in an upper side of the water surface of the water to be treated in contact with opened other side of the body opposite to one side of the body.

The efficiency of water disinfection can be significantly increased by supplying the ozone in combination with oxygen to an inlet of a cavitation pump or a line atomizer. A compressor can be introduced at an inlet of the cavitation pump or the line atomizer, compressing the gas mixture at a pressure higher than the pressure within pump or the atomizer. The compressed gases are provided to the inlet of the atomizer or the pump, where the compressed gases mix with the water and enter the cavitation pump or the line atomizer (where most of the dissolution of the gases happens). The compressor allows to increase the amount of oxygen and ozone provided to the pump or the line atomizer, increasing their dissolved concentration. In addition to the disinfecting properties, the higher level of oxygen correlates to an improved taste of the water.

This Invention Patent application provides a comprehensive program for control of organic and inorganic contaminants from paper production processes and other potentially pollutant industries through the integrated action of three continuous treatment systems, referenced herein as “3WAY”, with a first system aimed at the treatment of process waters for reuse, more specifically “white or clarified water” present in the “wet end” of paper and cellulose machines, allied to a second system based on the use of an adsorbent clay mix equipment that enables treatment of the cellulose pulp in previous phases of the process up to the machine circuit, in addition to a third system that carries out the cleaning of contaminant deposits present in clothing (felts and wires) or other machine parts through application of a heated and pressurized cleaning solution with a high detergency power.