Disclosed are methods to remove organic and/or inorganic compounds (e.g., contaminants) from water containing organic and/or inorganic compounds, involving contacting the water with an effective organic and/or inorganic compounds removing amount of hemoglobin/Fe.sub.3O.sub.4 composite where the compounds in the water adsorb onto the hemoglobin/Fe.sub.3O.sub.4 composite, and removing (e.g., using a magnet since the composite is magnetic) the hemoglobin/Fe.sub.3O.sub.4 composite from the water.

The present disclosure relates to a process, a system and a use for removing micropollutants (1) in liquid (2). The process comprises providing liquid (2) to a container (3) adapted to hold a liquid and/or a gas, providing magnetic activated carbon (4), mixing it, separating the magnetic activated carbon (4) using a magnetic separator (5), removing between 1 and 100% of the separated used magnetic activated carbon (4), removing the liquid (2), providing new liquid (2) to the container (3), providing the used magnetic activated carbon (4) to the container (3), adding between 1 and 100% of unused magnetic activated carbon (4), repeating the mixing and separation steps at least one time. The process allows for control of several parameters, such as the flow rate of the liquid, dosage of MAC and ratio used/unused MAC required to remove micropollutants from the liquid.

An induced symbiotic osmosis system and method for treating produced fluids from a hydraulic fracturing process or system for symbiotic fluids fractionation, salinity power generation, brines and salts solution reverse osmosis. The system includes a reverse osmosis membrane assembly to create potable water from produced water. The membrane assembly includes a hollow fiber or flat sheet membrane and headers to transfer desalinated water therefrom. The system can include an electro coagulation system, an ultra or nano filtration system, and a desalter to treat the produced water or brine. A heat exchanger can be positioned between adjacent reverse osmosis membrane assemblies. An osmotic power generation unit can create electrical power by receiving and utilizing produce water and brine water from a brine storage. The system reduces the release of global warming contributing gases associated with hydraulic fracturing, while producing potable water and power.

A composite material, wherein the composite material contains aluminum alloys with at least one of alkaline-earth metals and transition metals, and are used for removing pollutants by dissolving to release divalent metal ions, trivalent aluminum ions and hydroxide ions, which contact with other divalent and trivalent metal cations and anions in the contaminated water, to perform an in situ self-assemble of two-dimensional Layered Double Hydroxides (LDH) precipitates; consists of 18-70 weight% of aluminum metal, 30-80% weight of a second type of metal, and 0-2 weight% of an auxiliary agent; has a particle size of 0.01-3 mm; and preferably forms a micro-nano Alloy@LDH composite material with a core-shell structure by pretreating with dilute HCl. The present invention is used for soil remediation or sewage purification, and is suitable for chemical removal and degradation of complex contaminants from an acidic to alkaline environment.

An integrated device and method for treating toxic and refractory wastewater are provided. The integrated device includes an adjusting pool, a first-stage reactor, a second-stage reactor, a third-stage reactor, a coagulation sedimentation pool, and a biochemical reaction pool that are sequentially connected in series, and further includes an aeration blower. Each of the first-stage reactor and the third-stage reactor is an advanced oxidation reactor, and the second-stage reactor is a Fenton reactor. The coagulation sedimentation pool includes 2 to 4 stages, and each stage of the coagulation sedimentation pool includes a coagulation tank, a primary sedimentation tank, and a secondary sedimentation tank that are connected in series. The biochemical reaction pool includes an anoxic tank, an aerobic tank, a settling tank, and a clean water tank that are connected in series. The wastewater treatment method combines the integrated device for treating toxic and refractory wastewater with reasonable process parameters.

A water treatment apparatus management system which manages a household water treatment apparatus located at or near a place of water use, and treats water before treatment with at least one type of filter to produce treated water for the place of water use. The system includes: a filter information storage unit storing information regarding an in-service filter used in the household water treatment apparatus; an information receiver receiving information regarding performance change of the in-service filter from the household water treatment apparatus; and a water type estimation means that estimates a water type of the water before treatment based on the information regarding performance change and the information regarding the in-service filter. The information regarding the in-service filter includes reference information of performance change of the same or the same type of filter as the in-service filter for each of plural types of reference water before treatment.

A water purification apparatus (300) capable of being cleaned at a point of care, and methods for cleaning the water purification apparatus (300) at the point of care. The water purification apparatus (300) and the methods provide an efficient use of a heater (302) for heat disinfection the water purification apparatus (300), e.g. by recirculating heated fluid to further heat the fluid. Several different cleaning programs are provided that may be utilized for cleaning different parts of the water purification apparatus (300).

A method and apparatus for evaluating a condition of a water purification system (40, 110) comprising a water purification apparatus (110) arranged to output purified water through an outlet (128) and through at least one sterilizing grade filter (70a, 70b) of a line set (40) fluidly connected to the outlet (128), the method comprises: monitoring a flow rate (S1) correlated with the flow rate of the purified water flowing through the at least one sterilizing grade filter (70a, 70b); monitoring a pressure (S2) correlated with the pressure of the purified water flowing to the at least one sterilizing grade filter (70a, 70b); and evaluating (S3) a condition of the water purification system based on a relationship between the monitored flow rate and the monitored pressure.

A method for treating chemicals below ground is provided. The system includes contacting the chemicals with a rhizosphere to maximize transpiration rate and minimize over-saturation of the rhizosphere. Also provided is a method for using contaminated groundwater as a sole source of irrigation. The method uses extracting the contaminated water and pumping the extracted water to an irrigation zone under the control of an autonomous irrigation system. Each zone includes some trees and the root system for each tree is modified to function as a treatment cell. The invention also provides a system for treating contaminated water, using a contaminated water source situated below ground surface. The system uses a pump for extracting contaminated water from the water source and prevents the contaminated water from directly contacting the atmosphere above the ground surface. Vegetation which defines an underground rhizosphere is adapted to directly receive the water.

The present invention provides a method for treating water containing pollutants, comprising the steps of 1) bringing said water in contact with magnetoelectric particles so that the pollutants in the water come into contact with the surfaces of magnetoelectric particles; 2) applying a magnetic field to the magnetoelectric particles so as to generate electric charges on the surface of said magnetoelectric particles, wherein said electric charges on the surface of said magnetoelectric particles cause redox reactions to occur which oxidize said pollutants in the water. Also provided arm water cleaning reactors which can be used to perform the method of the present invention and water cleaning assemblies which use any of said water cleaning reactors.