The invention relates to 100% renewably-powered desalination/water purification stations for universal applications, the station is disruptive, scalable, amphibious and deportable to seawater, brackish or spill oil sites for simple wave-powered and autonomous operations, the station has a mooring assembly with pumping-purification-delivery subsystems powered by wave and solar energies, the pumping subsystems has the simplest, most efficient wave push/pull pump mechanisms powered by amplified wave centrifugal forces , the mechanical purifications has turbine filters, reverse-osmosis filters, forward-osmosis filters and relief valves to backwash buildups without releasing brine, release water through collecting spill oil, the solar thermal purifications are provided with distilling processes under vaccine conditions, the delivery subsystems with wave turbines and solar panels for generating electricity, propellering and transferring the stations for delivering fresh waters to destinations under GPS guide with the lowest LCOW.

The invention relates to 100% renewably-powered desalination/water purification stations for universal applications, the station is disruptive, scalable, amphibious and deportable to seawater, brackish or spill oil sites for simple wave-powered and autonomous operations, the station has a mooring assembly with pumping-purification-delivery subsystems powered by wave and solar energies, the pumping subsystems has the simplest, most efficient wave push/pull pump mechanisms powered by amplified wave centrifugal forces , the mechanical purifications has turbine filters, reverse-osmosis filters, forward-osmosis filters and relief valves to backwash buildups without releasing brine, release water through collecting spill oil, the solar thermal purifications are provided with distilling processes under vaccine conditions, the delivery subsystems with wave turbines and solar panels for generating electricity, propellering and transferring the stations for delivering fresh waters to destinations under GPS guide with the lowest LCOW.

The disclosure discloses a production method for full resource recycling of sulphate-process titanium dioxide production wastewater. The method comprises the steps: adding sulphate-process titanium dioxide production wastewater neutralized with lime and treatment wastewater obtained by separating gypsum in a filter press into a recycled sodium carbonate solution to precipitate saturated calcium sulfate in the treatment wastewater, clarifying slurry to separate a calcium carbonate precipitate from a sodium sulfate solution, and performing membrane separation on the separated sodium sulfate solution in a membrane filter; and adding lime into the concentrated phase sodium sulfate solution for causticizing reaction, wherein the filtrate is used as a sodium hydroxide solution, carbonizing using a carbon dioxide-containing tail gas produced in the production process of titanium dioxide to obtain a sodium carbonate solution, and then precipitating saturated calcium sulfate in the treatment wastewater again.

The invention provides a method for preparing drinking weak alkali water and strontium-rich electrolyte raw water from distilled water obtained in the process of producing salt from well and mine brine, which comprises procedures of pressure reduction treatment, primary filtration, membrane separation treatment, activated carbon adsorption treatment, secondary filtration treatment, sterilization and disinfection treatment and the like on the salt-making distilled water in sequence so as to remove insoluble solid impurities, sulfides, microorganisms and other substances in the raw water, and separate or enrich ions, thereby preparing the weak alkali water suitable for drinking and the strontium-rich electrolyte raw water capable of being used for functional beverage production. The method provided by the invention can not only realize the comprehensive utilization of resources, but also obtain new products, significantly improving the economical efficiency of the process.

The invention provides a method for preparing drinking weak alkali water and strontium-rich electrolyte raw water from distilled water obtained in the process of producing salt from well and mine brine, which comprises procedures of pressure reduction treatment, primary filtration, membrane separation treatment, activated carbon adsorption treatment, secondary filtration treatment, sterilization and disinfection treatment and the like on the salt-making distilled water in sequence so as to remove insoluble solid impurities, sulfides, microorganisms and other substances in the raw water, and separate or enrich ions, thereby preparing the weak alkali water suitable for drinking and the strontium-rich electrolyte raw water capable of being used for functional beverage production. The method provided by the invention can not only realize the comprehensive utilization of resources, but also obtain new products, significantly improving the economical efficiency of the process.

The present invention relates to a side stream deammonification process where deammonification is performed by a non-continuous flow integrated fixed film activated sludge sequencing batch reactor (IFAS SBR) without the need of employing an external clarifier. More particularly, the present invention entails a single reactor designed to operate as an IFAS SBR or a moving bed bioreactor (MBBR). With the design of the single tank, the two operation modes, MBBR and IFAS SBR, are interchangeable depending on the treatment needs.

The present invention relates to a side stream deammonification process where deammonification is performed by a non-continuous flow integrated fixed film activated sludge sequencing batch reactor (IFAS SBR) without the need of employing an external clarifier. More particularly, the present invention entails a single reactor designed to operate as an IFAS SBR or a moving bed bioreactor (MBBR). With the design of the single tank, the two operation modes, MBBR and IFAS SBR, are interchangeable depending on the treatment needs.

The present disclosure relates to a water treatment system, methods for treating water, and products for treating water. In certain embodiments, the present disclosure provides a water treatment system, the system comprising: (i) a chemical disinfectant and a flocculating agent, to treat water; and (ii) a deformable container comprising: an opening to receive water for treatment into the container; an internal storage region for holding an amount of water; a partitionable region fluidly partitionable from the internal storage region for separating the flocculating agent upon settling after exposure to water in the container; and an outlet in fluid connection with the internal storage region to remove water from the container.

A water treatment system 100 includes: a filtration device 16 that includes an RO membrane element 12 and an NF membrane element 14, and treats raw water containing sodium chloride by the RO membrane element 12 and the NF membrane element 14 to generate concentrated raw water; and an electrolytic device 18 that is disposed downstream of the filtration device 16 and electrolyzes the concentrated raw water to generate water containing sodium hypochlorite.

A system and method for generating base water and precipitate, including combining produced water with seawater to precipitate barium sulfate from barium in the produced water and from sulfate in the seawater, and separating the precipitate to give the base water and the precipitate. The base water may have less than a specified amount of sulfate and be utilized for hydraulic fracturing fluid. The precipitate may give a weighting agent for drilling.