A self-contained, portable, waste water evaporating apparatus is shown. A solar-operated submersible pump pumps waste water from just under the surface of a waste water pit, through a pair of automatic backflushing filters and out misters located around the bank of the waste water pit. At a predetermined pressure across the automatic backflushing filters, the automatic backflushing filters are reverse cycled, one at a time, to backflushing particles back into the waste water pit. Periodically, the misters are purged and/or cleaned to remove particles therefrom. In response to sunlight, solar panels provide DC voltage directly to the submersible pump. If pressure from the submersible pump gets excessive, a pressure relief valve removes the excess pressure.

The present document describes a media bed filter for filtering fine particles from a raw liquid flow, the media bed filter comprising: a tank having: a top portion; a bottom portion defining a bottom surface for receiving a media bed, the media bed having a supporting media to be disposed on the bottom surface and a filtering media for covering the supporting media, the top portion of the tank being above the filtering media of the media bed; a raw liquid inlet in fluid communication with a nozzle configuration located in the top portion of the tank for providing the raw liquid flow in the tank in the form of a plurality of jets at a directional velocity substantially equal or greater to a disengagement velocity of the filtering 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.

Systems and methods for generating and using a water filtration media containing date seed powder are provided. The method of generating the date seed powder for use in a water treatment system includes drying the date seeds, cleaning and removing the date seed envelopes, grinding the date seeds, and segregating the date seed powder according to a predetermined particle size. The method of using the date seed powder to treat water includes using a treatment tank with a date seed media bed layer, introducing water, and filtering suspended solids from the water stream using the date seed media bed layer. The system utilizing the date seed media bed layer includes a treatment tank, a date seed media bed layer, water inlets and outlets, backwashing equipment, and media support screens.

Systems, devices, and techniques described herein relate to iron-based desalination of water. In some cases, an inflow of water including chlorine and sodium can be received. A plurality of iron nanoparticles may capture the chlorine and the sodium. The iron nanoparticles may at least partially include Zero Valent Iron (ZVI). An outflow of the water may be emitted. The chlorine and the sodium may be omitted from the outflow.

The present disclosure provides a water filter device generated using animal bone. In some embodiments, the water filter device comprises a tube containing a series of layers of animal bone granules.

The present disclosure provides a device, a system, and a method for filtering liquids, in particular for filtering gray water such that it can be reused for multiple purposes. Also provided is an optional step of purifying the liquid with a chemical such that the filtered liquid is also potable.

The present disclosure provides a device, a system, and a method for filtering liquids, in particular for filtering gray water such that it can be reused for multiple purposes. Also provided is an optional step of purifying the liquid with a chemical such that the filtered liquid is also potable.