An electrochemical membrane module for selectively removing pollutants and a preparation method thereof are provided. A Ti/SnO.sub.2—Sb substrate electrode is coated with a MI—TiO.sub.2 sol-gel by means of a dip-coating method, and then sintered to obtain a molecular imprinting type Ti/MI—TiO.sub.2/SnO.sub.2—Sb coated electrode; the coated electrode is adhered to a ceramic micro-filtration membrane using epoxy resin glue to obtain a Ti/MI—TiO.sub.2/SnO.sub.2—Sb MI-anodic conductive composite membrane; the MI-anodic conductive composite membrane is used as an anode, and a titanium mesh is used as a cathode, so that the electrochemical membrane module capable of selectively removing pollutants is obtained. The invention effectively combines an electrochemical micro-filtration membrane and a molecular imprinting technique. When the electrochemical membrane module is used, suspended particles and refractory organics in the sewage are removed, and a highly selective removal of certain refractory pollutants can be achieved.

Reactor allowing the continuous filtration of a flowing fluid for the adsorption of pollutants on a filter, and electrolysis for regeneration of the filter and removal of organic pollutants, the reactor having a chamber, with at least one inlet delivering a fluid into the chamber and at least one outlet for evacuating the fluid from the chamber; a circuit for circulating a fluid to be treated by adsorption of pollutants on the filter; a circuit for recirculating an electrolyte solution for electrolysis, connecting the outlet to the inlet; the reactor operating in two modes; in continuous filtration mode of a fluid through the circulation circuit for adsorption of pollutants on the filter; in electrolysis mode for regeneration of the filter and removal of organic pollutants, by applying an electric current, with continuous recirculation of the electrolyte solution through the recirculation circuit.

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.

An efficient electrochemical pre-scaling water treatment device is disclosed. The device comprises an enclosed box, wherein anode positioning connecting shafts, anode plates, cathode plates and scrapers are distributed in a length direction of the closed box, the scrapers are fixed to a scraper holder, the anode plates are fixed to the anode positioning connecting shafts, and the cathode plates are fixed to a central shaft; the anode positioning connecting shafts, the scraper holder and the central shaft are fixed on the enclosed box; in the width direction of the enclosed box, a water inlet is provided at a first side of the enclosed box, a water outlet and a sewage outlet are provided at a second side of the enclosed box, and exhaust holes are provided at a top of the enclosed box.

Illustrative configurations of a pet hydration system and methods are disclosed. The pet hydration system includes a bowl section configured to temporarily store water therein. In one configuration, a hydrogen-generation assembly is positioned in the bowl section. The hydrogen-generation assembly generates and introduces hydrogen into the water temporarily stored in the bowl section. In other configurations, methods related to pet hydration are also disclosed.

A biofouling/biofilm removal system includes a filtration module configured to separate a permeate from a feed; a first inert electrode placed at an inlet of the filtration module; a second inert electrode placed at an outlet of the filtration module; and a power source configured to apply a current between the first and second electrodes. The inlet is configured to receive the feed and the outlet is configured to discard a concentrate, and the current applied between the first and second electrodes initiates electrochemical reactions inside the feed and along a biofilm formed in the filtration module, but not into the permeate.

Various embodiments relate to an electrochemical cell for removal of materials from water and methods of using the same. A method of removing phosphorus from water includes immersing an electrochemical cell in water including phosphorus to form treated water including a salt that includes the phosphorus. The electrochemical cell includes an anode including Mg, Al, Fe, Zn, or a combination thereof, a cathode including Cu, Ni, Fe, or a combination thereof. The method includes separating the salt including the phosphorus from the treated water, to form separated water having a lower phosphorus concentration than the water including phosphorus.

Various embodiments relate to an electrochemical cell for removal of materials from water and methods of using the same. A method of removing phosphorus from water includes immersing an electrochemical cell in water including phosphorus to form treated water including a salt that includes the phosphorus. The electrochemical cell includes an anode including Mg, Al, Fe, Zn, or a combination thereof, a cathode including Cu, Ni, Fe, or a combination thereof. The method includes separating the salt including the phosphorus from the treated water, to form separated water having a lower phosphorus concentration than the water including phosphorus.

Illustrative configurations of a pet hydration system and methods are disclosed. The pet hydration system includes a bowl section configured to temporarily store water therein. In one configuration, a hydrogen-generation assembly is positioned in the bowl section. The hydrogen-generation assembly generates and introduces hydrogen into the water temporarily stored in the bowl section. In other configurations, methods related to pet hydration are also disclosed.

Various embodiments relate to methods and systems for removing phosphorus and/or nitrogen from water. A method of removing phosphorus and nitrogen from water includes passing starting material water including nitrogen and phosphorus through an elevated pH phosphorus removal stage. The method includes passing the water through an electrolytic nitrogen removal stage. The method includes passing the water through a galvanic phosphorus removal stage. The water produced by the method has a lower phosphorus concentration and a lower nitrogen concentration than the starting material water.