This disclosure provides water processing apparatuses, systems, and methods for recovering water from wastewater such as urine. The water processing apparatuses, systems, and methods can utilize membrane technology for extracting purified water in a single step. A containment unit can include an ionomer membrane, such as Nafion, over a hydrophobic microporous membrane, such as polytetrafluoroethylene (PTFE). The containment unit can be filled with wastewater, and the hydrophobic microporous membrane can be impermeable to liquids and solids of the wastewater but permeable to gases and vapors of the wastewater, and the ionomer membrane can be permeable to water vapor but impermeable to one or more contaminants of the gases and vapors. The containment unit can be exposed to a dry purge gas to maintain a water vapor partial pressure differential to drive permeation of the water vapor, and the water vapor can be collected and processed into potable water.

An automatic dishwasher with a tub that at least partially defines a treating chamber, a liquid spraying system that supplies liquid to the treating chamber, and a pump assembly that fluidly couples the treating chamber to the liquid spraying system and where the pump assembly includes a housing having an inlet, a recirculation outlet, and a drain outlet.

An auxiliary gray water supply device captures used wash water from a commercial warewashing machine for supply to a pre-rinse station without substantial modification of the commercial warewashing machine. The captured wash water and treatment agent are delivered to a pre-rinse station for pre-rinsing of dishes that will be washed within the commercial warewashing machine.

The invention relates to a system and a method for treating waste water using a passive phosphorus-capture filter lined with wood activated by the impregnation of a metal in the form of hydroxide, more specifically aluminum hydroxide or iron hydroxide. This system demonstrates phosphorus removal performances which are very closely linked to the release of iron and which support the observation that iron releases follow a cyclical trend. The method according to the invention also clearly demonstrates the cyclical nature of the reduction of phosphorus, directly linked to the same cycle of iron release at the outlet. When the medium is aerobic, it can precipitate the released iron in the form of hydroxide and thereby limit the release of iron into the outflow water and consequently its residual phosphorus. This model thus allows the service life of the system to be extended, while simultaneously taking advantage of the precipitation/solubilization cycle of the iron observed in the medium under reducing conditions.

Laundry, industrial or food processing wastewater is purified to the degree that it can be reused. Water quality is ensured through the final process of reverse osmosis (RO) which removes dissolved contaminants such as mineral hardness, soils and residual detergents. The process combines a ceramic tubular cross-flow membrane filter to remove the suspended solids, oils and greases ahead of the RO. The RO process employs high temperature, low fouling membranes. This enables the RO process to operate sustainably, i.e. without fouling, plugging or membrane degradation.

Provided are biocide compositions and bleach compositions comprising organic acyl polyoxychlorine and related methods. The reduction of the acyl polyoxychlorine group releases a reactive intermediate that undergoes a series of cascading reduction steps, resulting in termination products Generally Recognized As Safe.

A dishwasher appliance with a tub is provided. The tub defines a filter medium and a supply conduit within the tub. The supply conduit of the tub extends from the filter medium to a spray assembly such that the supply conduit of the tub directs filtered water from the filter medium to the spray assembly during operation of a pump. A related method for forming a unitary tub for a dishwasher appliance is also provided.

The water circulation and processing system of a washing machine comprises a flocculation container for flocculating drained water from the washing machine main body, the flocculation container having a water level detection apparatus. After washing laundry, the water circulation and processing system subjects the water to flocculation and circulates same for re-use, and, calculates the dose of flocculant needed for the water to be processed by the flocculation process. The dose of flocculant is calculated by measuring and calculating the amount of water intake for washing and the amount of water to be processed for each flocculation so as to ensure flocculation effects. By calculating the height of flocculation product after layer separation by means of the flocculant dose, using a water level measurement can entirely separate a clean water layer, saving more water, and enabling flocculated matter to be prevented from mixing with the circulating clean water.

The present invention is a system that recycles shower water to promote water conservation. The system comprises a plurality water valves for opening and closing water lines, sensors for temperature and presence of soap/shampoo/conditioner in the water, a heater, a filter means, and a control center. This system has the capability to monitor when the water is clean and then channels water to be recycled and supplemented with heating, filtering, and a percentage of fresh hot and cold (ambient) water. The control center continuously monitors the water for cleanliness or contaminated with soap products and can switch between a recycle mode and a non-recycle mode. The temperature sensor monitors the recycle water temperature and activates a heater to increase the temperature if needed.

Processing methods and systems are directed toward water filtration and/or purification techniques and/or energy recovery processes that may be used to generate usable water. Some embodiments can include at least one filtration and/or purification stage that processes water to a level of purity. Some embodiments can include recirculating water streams through a stage or another stage to achieve a desired level of purity. Some embodiments can include use of an energy recovery unit that may harvest energy from the water stream of the system and supply the harvested energy therefrom back into the system.