A method, system and device for recovering a desired nutrient from wastewater or digester effluents while separating the remaining components into various side streams which may have additional value or be suitable for inexpensive disposal due to the processing.

In a wastewater treatment process or other water treatment process, wherein ceramic membranes are employed to filter liquid not being treated in a biological process, ozone gas is injected and dissolved into the membrane influent for the purpose of preventing fouling of the membranes, while also enhancing pathogen removal. Ozone concentration as injected is at a concentration greater than 2 mg/l, preferably at least about 5 mg/l.

The present invention discloses a microencapsulation method for improving stability of anthocyanin, a product therefrom and use thereof. A preparation method of anthocyanin microcapsules includes: (1) taking sodium alginate as a wall material, adding sodium alginate and calcium carbonate into water, and swelling for 1-2 h to obtain a wall material gel system; (2) taking anthocyanin prepared by a special process as a core material, and fully and uniformly mixing the wall material gel system with an anthocyanin solution to obtain a water phase; (3) mixing Span80 and vegetable oil to obtain an oil phase, mixing the water phase with the oil phase, and magnetically stirring for emulsifying to obtain a W/O emulsion; and (4) adjusting the pH of the W/O emulsion to be acidic, mixing the W/O emulsion with a salt buffer solution, standing for 1-2 h, and then separating the oil phase and the water phase.

The present invention discloses a microencapsulation method for improving stability of anthocyanin, a product therefrom and use thereof. A preparation method of anthocyanin microcapsules includes: (1) taking sodium alginate as a wall material, adding sodium alginate and calcium carbonate into water, and swelling for 1-2 h to obtain a wall material gel system; (2) taking anthocyanin prepared by a special process as a core material, and fully and uniformly mixing the wall material gel system with an anthocyanin solution to obtain a water phase; (3) mixing Span80 and vegetable oil to obtain an oil phase, mixing the water phase with the oil phase, and magnetically stirring for emulsifying to obtain a W/O emulsion; and (4) adjusting the pH of the W/O emulsion to be acidic, mixing the W/O emulsion with a salt buffer solution, standing for 1-2 h, and then separating the oil phase and the water phase.

A method for treating an aqueous fluid resulting from a fluorine-containing polymer production step, the method comprising: separating the aqueous fluid into a solid component and a filtrate using a filter aid.

A method for treating an aqueous fluid resulting from a fluorine-containing polymer production step, the method comprising: separating the aqueous fluid into a solid component and a filtrate using a filter aid.

The present invention relates in general to the field of water kiosks, and more specifically, to an emergency water filtration kiosk and method of delivering clean and safe water using the emergency water filtration kiosk. One aspect of the emergency water filtration kiosk and method of use may include a four-stage water filtration system to better purify, clean, and improve the taste of water. The emergency water filtration kiosk and method of use may further include a turn-key variable pump system that is configured to supply water to the emergency water filtration kiosk via three alternative power sources. The purpose of the invention is to provide a self-contained and rapidly deployable emergency response water filtration kiosk and method of use that delivers clean and safe drinking water to people in need after a natural disaster. An additional purpose of the invention is to provide an emergency water filtration kiosk and method of use that offers a wide variety of on-board integrated pumping solutions to supply water to the filtration kiosk under any power condition.

A method of producing cellulase includes steps (1) to (3): (1) subjecting an aqueous solution of cellulase derived from filamentous fungi to filtration through an ultrafiltration membrane with a molecular weight cut off of 100,000 to 200,000 to obtain a filtrate and concurrently obtain a concentrated enzyme liquid as a retentate; (2) further subjecting the filtrate obtained in step (1) to filtration through a second ultrafiltration membrane with a molecular weight cut off of 5,000 to 50,000 to obtain a second concentrated enzyme liquid as a retentate; and (3) mixing the concentrated enzyme liquid obtained in steps (1) and (2) to obtain cellulase derived from filamentous fungi.

A method of producing cellulase includes steps (1) to (3): (1) subjecting an aqueous solution of cellulase derived from filamentous fungi to filtration through an ultrafiltration membrane with a molecular weight cut off of 100,000 to 200,000 to obtain a filtrate and concurrently obtain a concentrated enzyme liquid as a retentate; (2) further subjecting the filtrate obtained in step (1) to filtration through a second ultrafiltration membrane with a molecular weight cut off of 5,000 to 50,000 to obtain a second concentrated enzyme liquid as a retentate; and (3) mixing the concentrated enzyme liquid obtained in steps (1) and (2) to obtain cellulase derived from filamentous fungi.

A method for efficiently producing PHA comprising: inoculating PHA fermentation strains into a fermentation medium for fermentation under the condition of being capable of producing PHA through fermentation; subjecting the fermentation broth to a solid-liquid separation to obtain fermentation supernatant and thallus precipitate; breaking the cell walls of the thallus precipitate, and subjecting the wall-broken products to a plate and frame filtration to prepare PHA; pre-coating a filter cloth for the plate and frame filtration with a PHA layer; at least part of the water of the fermentation medium is PHA process wastewater. The method utilizes the PHA process wastewater as at least part of the water of the fermentation medium, and filters and separates the broken thallus with the plate and frame filtration equipment pre-coated with PHA layer to prepare PHA, thereby recycling the high-salt wastewater, reducing costs, and potentially separating PHA on a large scale for industrial production.