A water discharge management system is provided. The water discharge management system includes a water processing system, a controller provided with an executable recapture protocol, and a plurality of controllable multi-way valves which control and implement a regeneration cycle of the water processing system based upon the recapture protocol. Each controllable multi-way valve is in operable communication with the controller through a signal path. The controllable multi-way valves are responsive to a signal exchanged with the controller through the signal path and operable between a first position connecting an input from the water processing system to a first output, and a second position connecting the input from the water processing system to a second output.

A filter is provided. The filter includes: a filter cartridge, comprising a side wall and an upper end; a cartridge cover on the upper end of the filter cartridge, wherein the cartridge cover and the filter cartridge together define a first chamber. The filter further includes a filter chamber in the first chamber, a fiber filter material in the filter chamber, a water intake channel disposed on the filter cartridge or on the cartridge cover and in fluid communication with the filter chamber, and a water discharge channel in fluid communication with the filter chamber. The filter may be a water filter. An above-ground pool is also provided including the filter.

A method and system for treating oilfield produced water is disclosed. The method includes passing oilfield produced water through a chain of filters, first filter configured to filter particles of a size larger than 10 m from the water, a second filter configured to filter remaining particles of a size larger than 2 m from the water and a third filter configured to filter remaining particles of a size larger than 0.5 m from the water and automatically cleaning at least one of the filters.

The present technology relates to control systems for use with fluid treatment systems. In one embodiment, for example, a fluid treatment system includes a vessel configured to receive a fluid having one or more constituents and to separate one or more constituents from the fluid. The system can also include a tube extending along at least a portion of the vessel and a sensor. The tube can be in fluid communication with a pressurized air source, and the sensor can be configured to obtain a measurement of an operating parameter. The system can also include a controller in communication with the sensor and pressurized air source. The controller can execute one or more algorithms to determine a filter parameter based on the measurement of the operating parameter, compare the filter parameter to a threshold, and, based on the comparison, activate or deactivate the pressurized air source.

An indoor growing facility includes a grow zone configured for growing crops and an air handling apparatus comprising a supply plenum wall at one end of the grow zone, and a return plenum wall at an opposite end of the grow zone. The return plenum wall may include intake openings that vary in size to create variable suction. The indoor growing facility may also include an irrigation system that includes an irrigation skid coupled to a supply tank, fertigation apparatus, and the grow zone. The indoor growing facility may also include a filtration system comprising an ozone apparatus, a regenerative filter apparatus, and a drum filter apparatus.

The present invention relates generally to a system and method for treating wastewater in a filter media apparatus having a draft tube system. The filter media may be walnut shell media.

The invention relates to a filter system for removing and/or neutralizing undissolved oils, greases and salts, preferably also floating bodies, such as metal debris, on/in water-containing emulsions from, in particular, containers and tanks that are used for holding and storing emulsions.

Certain embodiments include a screen assembly of a vessel, where the screen assembly includes a plurality of fixed elements and a retainer, and the retainer includes a ring, a plurality of wedges disposed about the ring, and a plurality of keyholes at spaced locations about the ring. Each keyhole includes a bore and a slot extending from the bore into an adjacent wedge of the plurality of wedges, the slots have a width less than the bores, and the retainer may receive the fixed elements through the bores and may be rotated in a relation with the plurality of fixed elements to bring the plurality of fixed elements into simultaneous engagement with the wedges.

A method and apparatus for filtering fluid for a food processing system is disclosed and includes a fluid inlet, a filtered outlet, a drain outlet, two filterseach having inlets, inlet valves, drain outlets, drain valves, filtered outlets, and return valves. A first recycling flow path includes an inlet valve, an inlet, a filter, a return valve, and a filtered outlet. A first drain flow path includes the inlet valve, the inlet, the filter, the drain valve, and the drain outlet. A second set of like flow paths for the second filter is provided. A controller is connected to control each of valves, and the controller has a first filter purge module, a first filter filter module, a first filter power purge module, a first filter off module, second filter purge module, a second filter filter module, a second filter power purge module, and a second filter off module.

A system for reconditioning contaminated water includes a plurality of filter tanks, each filter tank configured to hold a media mixture comprising media particles to which contaminants adhere when the contaminated water is pumped through the filter tanks and a feed water pump to pump the contaminated water through the plurality of filter tanks. The plurality of filter tanks are configured to form a multistage filter system for filtering the contaminated water at different contaminant particle sizes, and the feed water pump pumps the contaminated water through the multistage filter system in a continuous manner during a normal filtering mode.