The disclosure relates to devices and systems for configurable, contaminant-specific water filtration and treatment under pressure. In particular, the disclosure relates to a contaminant-specific configurable and modular water filter and a water filtration system maintained under positive or negative pressure, comprising modular housings, each housing defining a plurality of reconfigurable compartments operable to accommodate contaminant-specific filtering units in an order configured to minimize pressure drop along the flow direction of the water.

A water quality management method for managing the concentration of impurity ions contained in the water to be analyzed includes connecting the ion adsorption device in which the ion adsorbent and the accumulated flow rate meter are provided to the branch pipe, passing the water being analyzed from the branch pipe to the ion adsorbent for a predetermined period of time to the ion adsorption device and adsorbing ions contained in the water being analyzed an ion adsorbent sample. In the ion adsorption device, an accumulated flow rate meter is provided on the downstream side of the flow direction of the water being analyzed of the ion adsorbent.

A system and method for model predictive control of a process for removing dissolved oxygen (DO) from seawater to produce treated seawater having less than a prescribed DO concentration and a prescribed pH is disclosed. The model predictive control system includes a machine learning (ML) module for calculating, based on the values of operational input parameters, a predicted DO concentration and a predicted pH of the treated seawater for a future point in time. An ML-based control module is configured to determine, based on the predicted DO concentration, predicted pH and the input parameters, settings for adjusting controllable operational input parameters that serve to change the DO concentration or pH of the treated seawater. The control system monitors DO and pH during operation to dynamically update the DO and pH predictions, and adaptively update system settings to produce treated seawater having less than the prescribed DO concentration and pH.

In a method for extracting boron from feed water, boron is extracted from feed water received as irrigation runoff water from an agricultural source at a pressurized vessel located at a first location, the pressurized vessel including a boron-selective resin bed. The pressurized vessel is uncoupled from the agricultural source, wherein the boron-selective resin bed is boron-saturated. The pressurized vessel comprising the boron-saturated resin bed is transported to a second location. The pressurized vessel comprising the boron-saturated resin bed is coupled to a boron extraction system at the second location. An acid-based solution is injected into the boron-saturated resin bed, causing the boron to be released from the resin bed and into a boron solution. The boron solution is drained from the pressurized vessel into a holding tank.

A surfactant composition in aqueous phase includes 0.5% to 15% by weight of an alkoxylated block copolymer and 0.5% to 15% by weight of an alcohol ethoxylate. The non-ionic alkyl ethoxylate is a fast wetting agent. The block copolymer, which is characterized by a longer wetting time than the non-ionic alkyl ethoxylate, disrupts the emulsion and allows the now-coated sulfur particles to escape the existing emulsion. The composition may also include an alkyl alcohol and/or glycol ether. The alkyl alcohol augments the emulsion-breaking capabilities of the diblock copolymer by providing additional surface tension reduction to the system, as well as emulsion inhibition at the aqueous-gaseous interface. The glycol ether acts as a mutual solvent, which also augments the emulsion breaking capabilities of the diblock copolymer by providing additional surface tension reduction to the system, as well as emulsion inhibition at the aqueous-gaseous interface.

Methods are provided for treating intimately dispersed mixtures of water, bitumen, and fine clay particles, such as oil sands mature fine tailings (MFT). Select methods use dissolved silicate ions and a base (alkali), optionally in combination with a biopolymer, to flocculate a slurry. A mixing regime is disclosed involving the addition to MFT of silicate ions in solution and alkali, to initiate aggregation/destabilization of clay particles. Methods are exemplified that provide distinct sediment layers in conjunction with the release of residual bitumen (for example 40-50% of the initial bitumen content). In these exemplified embodiments, a densely packed bottom layer containing 75 wt. % solids showed high yield stress values (3.5-5.5 kPa) and entrapped little residual bitumen (0.2-0.3 wt. %). The methods accordingly segregate a material suitable for reclamation.

Separation methods and systems for converting high concentrations of animal wastes and other nutrient-rich organic materials into nutrients and other useful products such as struvite and potassium struvite. Advantageously, the system and methods do not require the addition of external chemicals other than an acid and a base.

Disclosed is a lithium recovery system for black mass, including: a heat treatment unit that performs heat treatment to convert the black mass into soluble substances and insoluble substances; a water leaching unit that leaches the heat-treated black mass with water to separate the heat-treated black mass into a water leaching solution, which contains lithium ions and carbonate ions, and insoluble substances; and an impurity removal unit that removes impurities contained in the water leaching solution by lowering pH of the water leaching solution through addition of carbon dioxide-containing gas to the water leaching solution.

An ultrapure water production system for producing ultrapure water with reduced boron concentration includes: a primary pure water tank that communicates with the outside air and stores primary pure water; and a subsystem that is connected to the primary pure water tank to produce ultrapure water. Unused ultrapure water of the ultrapure water that has been produced in the subsystem is circulated to the primary pure water tank. The subsystem includes: a boron removal device filled with a boron-selective resin and a non-regenerative ion exchange device arranged downstream of the boron removal device.

An adsorbent and a metering unit are used in a facility for processing liquids for removing dissolved organic and/or inorganic substances. The water-soluble metering unit, which contains an adsorbent, is metered into the liquid to be treated, in order to remove dissolved organic and/or inorganic substances depending on the amount of dissolved organic and/or inorganic substances to be removed, wherein the adsorbent is released. When metered into the liquid to be treated, the metering unit disintegrates or disperses and releases the adsorbent which, on account of the then extremely large surface area, can bind high quantities of dissolved organic/inorganic substances.