A means and method of treating wastewater generated during the washing of on road and off-road vehicles by means of a filtration, advanced oxidation and post process filtration to produce a water consisting of near neutral pH, Low Total Dissolved Solids, Low Total Suspended Solids, Low Iron, Low Calcium Carbonate (CaCO3), Low Bacteria, Low Sulfur and high clarity, such that the water is suited for all commercial vehicle washing operations.

Examples disclosed herein relate to a water treatment system including a first cavitation device coupled to a wastewater source via one or more cavitation device lines, a filter coupled to the first cavitation device via one or more filter lines, an equalizing tank coupled to the filter via one or more equalizing tank lines, a second cavitation device coupled to the equalizing tank via one or more second cavitation device lines where a flow from the equalizing tank which enters the second cavitation device is modified and reenters the equalizing tank, a first booster pump coupled to the equalizing tank via one or more first boost pump lines, a contact tank coupled to the first booster pump via one or more contact tank lines, a carbon filtration device coupled to the contact tank, a biological treatment system coupled to the carbon filtration device via one or more biological treatment system lines, a second booster pump coupled to the biological treatment system via one or more second booster pump lines, a polishing mass media filter coupled to the second booster pump via one or more polishing mass media filter lines, a granular activated carbon system coupled to the polishing mass media filter via one or more granular activated carbon system feeds, an ozonation system coupled to the granular activated carbon system via one or more ozonation system lines, a reaction tank coupled to the ozonation system via one or more reaction tank lines, a third booster pump coupled to the reaction tank via one or more third booster pump lines, a reverse osmosis pump coupled to the third booster pump via one or more reverse osmosis pump lines, a reverse osmosis system coupled to the reverse osmosis pump via one or more reverse osmosis system lines, and a SOW tank coupled to the reverse osmosis system via one or more SOW lines.

Disclosed are a water treatment apparatus and a process for treating process water with ozone and ultraviolet radiation. The apparatus comprises a reactor (4) having a first (5) and a second (6) reaction chamber. The first reaction chamber (5) has a UV lamp (1), an air inlet (30) and a gas outlet (23). An air/ozone conduit (34) is connected to the gas outlet (23), via which an air/ozone mixture (b) can be fed into a water inlet conduit (31). The second reaction chamber (6) is connected to the water inlet conduit (31) and a water outlet conduit (32). The inlet conduit (31) may contain a water filter (18) as well as a controllable circulation pump (16) designed to pump water in the reactor direction. The water filter (18) may be arranged between the circulation pump (16) and the reactor (4). A recirculation conduit (33) comprises a pump (10) pumping water towards the inlet conduit (31). It has a feed point (21) at which the air/ozone mixture (b) is feedable into the process water (d) or is in fluid communication with a fresh water conduit (35) via a fresh water feed point (9), which has a feed point (21) at which the air/ozone mixture (b) is feedable into fresh water (f) in the fresh water conduit (35).

A pedicure, manicure, and massage spa water treatment system is described. The treatment system provides a container for containing spa treatment water and multiple fish, a spa water treatment container having a first spa water treatment section hydraulically connected to the container and a second spa water treatment section hydraulically connected to both the container and the first spa water treatment section, and a carbon reactor device. The spa treatment water hydraulically and sequentially flows from the container to the first spa water treatment section, to the second spa water treatment section, and subsequently to the container. An inlet of the carbon reactor device is in hydraulic communication with the first spa water treatment section and an outlet of the carbon reactor device being in hydraulic communication with the second spa water treatment section. Only a portion of the filtered spa treatment water contacts the carbon reactor device.

Examples disclosed herein relate to a water treatment system including a first cavitation device coupled to a wastewater source via one or more cavitation device lines, a filter coupled to the first cavitation device via one or more filter lines, an equalizing tank coupled to the filter via one or more equalizing tank lines, a second cavitation device coupled to the equalizing tank via one or more second cavitation device lines where a flow from the equalizing tank which enters the second cavitation device is modified and reenters the equalizing tank, a first booster pump coupled to the equalizing tank via one or more first boost pump lines, a contact tank coupled to the first booster pump via one or more contact tank lines, a carbon filtration device coupled to the contact tank, a biological treatment system coupled to the carbon filtration device via one or more biological treatment system lines, a second booster pump coupled to the biological treatment system via one or more second booster pump lines, a polishing mass media filter coupled to the second booster pump via one or more polishing mass media filter lines, a granular activated carbon system coupled to the polishing mass media filter via one or more granular activated carbon system feeds, an ozonation system coupled to the granular activated carbon system via one or more ozonation system lines, a reaction tank coupled to the ozonation system via one or more reaction tank lines, a third booster pump coupled to the reaction tank via one or more third booster pump lines, a reverse osmosis pump coupled to the third booster pump via one or more reverse osmosis pump lines, a reverse osmosis system coupled to the reverse osmosis pump via one or more reverse osmosis system lines, and a SOW tank coupled to the reverse osmosis system via one or more SOW lines.

Implementations of a water filtration system are provided. In some implementations, the water filtration system comprises a housing having a plurality of ports for receiving and outputting fluids wherein the housing encloses components configured to, in a filtration mode, filter water received through one of the plurality of ports to produce potable water and output the potable water through one of the plurality of ports and wherein the housing encloses components configured to, in a flush mode, use fluid received through one of the plurality of ports to remove contaminants captured in the water filtration system and output the contaminants through one of the plurality of ports.

The present disclosure relates to recycling automotive phosphate rinse water. An apparatus and method is disclosed for treating process water containing phosphate. The apparatus may include a process water line. The process water line may be in fluid communication with a sample process water line. The sample process water line may be in fluid communication with a dilution line. The sample process water line, the dilution line, and a phosphate analyzer may be in fluid communication with a diluted process water line. The apparatus may also include a chemical additive feed line in fluid communication with the process water line downstream from the sample process water line.

A water softening device includes a filter configured to decrease hardness of a first stream of raw water to produce a second stream of water with decreased hardness, a first sensor that measures an electrical property of the first stream, a second sensor that measures an electrical property of the second stream, and optionally, a third sensor that detects a water flow through the filter, wherein the filter includes an ion exchange resin operated in H.sup.+-mode, and the filter is buffered with at least one salt selected from the group of a potassium salt (K.sup.+), a sodium salt (Na.sup.+) and a lithium salt (Li.sup.+).

The present invention relates to a process and device for selectively removal of deflocculated sludge below a pre-selected size from a sludge mixed liquor. The invention resides in the concept of removing from the sludge mixed liquor deflocculated sludge. The removal is preferably carried out by a two-step separation providing a fraction comprising sludge flocs, substantially freed from deflocculated sludge, and a fraction containing mostly deflocculated sludge. The fraction comprising sludge flocs is returned into the sludge mixed liquor, while the fraction containing mostly deflocculated sludge is removed from the system.

In a water treatment system, in particular for cooling towers, comprising a fluid basin and a circulation circuit designed to draw a fluid from the fluid basin and subsequently return it again, the circulation circuit comprising an ozone supply device for introducing ozone into the fluid, it is provided that the ozone supply device comprises a swirl chamber reactor and an ozone generator, which is connected to a filter system having an inlet opening for ambient air such that ambient air cleaned by the filter system, in particular substantially pure oxygen, can be fed to the ozone generator for ozone generation.