A method and apparatus for delivering sanitized drinking water to a poultry or other animal husbandry facility with water supplied from either a potable or non-potable source. In the case of a non-potable water source, ozone and antimicrobial copper or copper alloy are employed as primary and secondary sanitizing agents to eliminate chemical and biological drinking water contaminants. Ozone gas is generated onsite and serves as the primary sanitation agent prior to distribution of water to nipple drinker conduits within the facility. In the case of a potable water source, water is delivered directly to the drinking water distribution system. In either case, at least one conduit is filled with a woven mesh of antimicrobial copper to perform as a passive sanitation agent to inhibit microbial propagation and prevent development of biofilm within a nipple drinker system during periods of low flow and high temperatures. In the case of non-potable water source, as animals mature and consume more water, increasing concentrations of residual ozone clean the copper/copper alloy mesh surface and sanitize exposed nipple drinker actuator pins.

Structures, methods, and assemblies for stormwater management systems with one or more internal bypass features incorporated into a vault-shaped enclosure are described, along with methods and additional structures that are useful for managing stormwater flow and inhibiting the flow of pollutants, debris, and other contaminants into drainage systems. A first compartment disposed within the vault and comprising a removable bypass pipe, a baffle wall adjacent to the bypass pipe, a screened floatables baffle attached to the baffle wall, and a fluid-conveyance opening disposed along the baffle wall are described. A fluid-conveyance opening is located below the top of a bypass pipe, and a second compartment is in fluid communication with the first compartment through the fluid-conveyance opening. A second compartment is adapted to incorporate a filtration cartridge. An underdrain defined at least in part by the upper and lower floor slabs of the vault is disposed below and in fluid communication with the first compartment through the bypass pipe.

A wastewater treatment system including a contact tank, a dissolved air flotation unit, a fixed film reactor, and a solids-liquid separation unit is disclosed. A method of treating wastewater with a dissolved air flotation unit and a fixed film reactor is also disclosed. A method of retrofitting a fixed film reactor wastewater treatment system including providing a contact tank and a dissolved air flotation unit is also disclosed. A method of facilitating increased operating efficiency of a fixed film wastewater treatment system including providing a dissolved air flotation unit is also disclosed.

A water purifier including a raw water flow path, a first valve provided in a water purification path, a second valve provided in a wash water flow path, a purified water valve provided in a purified water supply tube, a flow sensor provided in a cooking water supply tube and sensing a flow amount of liquid flowing in the cooking water supply tube, a drainage valve provided in a drainage flow path branched from the cooking water supply tube and a controller for draining the liquid remaining in the cooking water supply tube, when a flow amount value sensed by the flow sensor for a preset period of time is less than or equal to a certain value, by controlling opening/closing of the purified water valve, the first valve, the second valve, and the drainage valve.

Metal working fluid decontamination apparatus (10) includes: an intake arrangement (40) for metal working fluid (42); a pump (16) for providing, in use, flow pressure to the metal working fluid (42); a decontaminator (50) for reducing contamination in the metal working fluid (42); and an outlet arrangement (34) for the metal working fluid. The metal working fluid (42) is a fully synthetic metal working fluid, which comprises water and a water soluble synthetic concentrate which does not comprise oil.

The embodiments of the present disclosure provide an electrode plate, an electrolysis apparatus, and a laundry treatment device. Multiple through holes penetrating the electrode plate in the thickness direction of the electrode plate are formed in the electrode plate. The density of the through holes in the electrode plate is 1-10/cm.sup.2. According to the electrode plate in the embodiments of the present disclosure, on the one hand, because the density of surface charge at the junction of the inner wall of the through hole and the surface of the electrode plate is larger, and the electric field intensity nearby is higher, the electrolysis efficiency can be greatly improved, more active substances such as hydroxyl radicals and active chlorine can be generated, and more microbubbles can also be generated, which can improve the sterilization, cross color prevention and washing effects.

A water filtration system is provided. The system may include a connector and a filter configured to be mounted in the connector. The connector may include a connector body, a connector inner core, a connector core baffle, a connector body water inlet of the connector body, and a connector body water outlet of the connector body. The water filtration system may have a filtering configuration and a bypass configuration. In the filtering configuration, the water filtration system may be configured to direct water through the filter. In the bypass configuration, the water filtration system may be configured to direct water out the connector body water outlet without passage through the filter. The water filtration system may be in the filtering configuration when the filter is fully mounted in the connector. The water filtration system may be in the bypass configuration when the filter is not fully mounted in the connector.

Some embodiments provide a pool filtration system for filtering pool water including a pump, a primary filter in fluid communication with the pump, and an auxiliary filter in fluid communication with the pump and the primary filter. The auxiliary filter can include a membrane filtration module, and a flow distribution manifold. The flow distribution manifold can include an influent port in fluid communication with an influent flow opening and an effluent port in fluid communication with an effluent flow opening. The influent flow opening and the effluent flow opening can be fluidly coupled across the membrane filtration module. The flow distribution manifold can further include a bypass mechanism. The bypass mechanism can include at least one valve that selectively fluidly couples the influent port to the effluent port to bypass the membrane filtration module.

A biological reactor system treats concentrated contaminated water with a combination of upflow and downflow bioreactors that are downstream from a reverse osmosis or other concentrator. The system may have a fail safe configuration where flush water may be introduced to the reactors in the event of a power failure or when taking the reactors offline. Many reverse osmosis systems introduce antiscalant treatments upstream so that the reverse osmosis filters do not scale. However, such treatments result in superconcentrated conditions of the antiscalants in the contaminated water processed by the bioreactors. A flushing system may deconcentrate the bioreactors to prevent the antiscalants from precipitating and fouling the bioreactors.

A water conditioning system for evaporative cooling systems reduces operating costs and microbial contamination by introducing positively charged copper-silver ions into water used as a working fluid. Some of the recirculating water is also passed through a magnetic conditioner to increase its conductivity. By concentrating the total dissolved solids (TDS) in a portion of the water to be expelled, the remaining system water plus new make-up water added contains far lower TDS, reducing health risks, maintenance costs, corrosion, and scaling, and extending service life of replaceable filter elements and system machinery. Recovering non-chemically treated cooling tower bleed water with commercial scale nanofiltration water polishing equipment and returning that polished water back to the cooling tower water basin reduces the make-up water required, and may achieve 70% or greater reduction in sewer fees for tower bleed water, along with increased cycles of concentration further reducing requirement for make-up water.