A waste management system, primarily intended to be for waste floating in water, though it can also be used on land. A shredding device will reduce the size of the particles of waste. Ocean water is removed by a drying device. The dried waste material is cryogenically frozen using liquid nitrogen or other suitable means. The frozen waste material is then pulverized and ground into a powder. The powder may then be sprayed into a gas-filled chamber and heated. Temperature, pressure and humidity are maintained within the chamber for more than one minute. Microwave or other radiation and catalysts may be used to enhance the process of extraction. The processed material is then removed from the chamber. Carbon and water may be recycled. The carbon may be used as fuel by the ship. Water may also be used by the ship or returned to the ocean in a non-toxic condition.

The present application relates to the technical field of water environment governance, and particularly discloses a method for accurate positioning and in-situ treatment of pollutants at a sediment-water interface. In the method, high-throughput sequencing technology and pollutant source apportionment technology are firstly used to perform accurate positioning on the sediment to be controlled, and then electrodialysis-vacuum negative pressure dewatering technology is used to perform in-situ dewatering treatment on the sediment to be controlled, thereby realizing accurate governance with the minimum desilting amount. In the present application, in further cooperation with the application of microbial reagents, the microbial flora environment of the sediment-water interface is regulated, thereby increasing the dewatering speed of the sediment.

The present disclosure relates to water environment governance technology, and particularly discloses an urban river/lake water environment multi-interface governance and restoration method. The method is a multi-interface coordinated governance and restoration method based on “control for bottom, regulation for middle and governance for top”, including: “control for bottom”—controlling the emission of sediment nutritive salts and the dormancy and recovery of algae; “regulation for middle”—regulating primary productivity in a water body to inhibit the recovery of the algae; and “governance for top”—reducing nitrogen and phosphorus nutrients of an air-water interface to control the reproduction and growth of the algae. In the present disclosure, the water body governance and restoration technology based on interface coordination can effectively inhibit the outbreak of cyanobacteria and avoid extreme conditions in the ecosystem.

A method of separating material, such as foam, sludge, oil or grease, at a fluid's surface, by applying acoustic pressure shock waves to the material and the fluid's surface such that acoustic pressure shock waves are propagated in liquid medium of the fluid and in gas medium above the fluid surface.

A method of separating material, such as foam, sludge, oil or grease, at a fluid's surface, by applying acoustic pressure shock waves to the material and the fluid's surface such that acoustic pressure shock waves are propagated in liquid medium of the fluid and in gas medium above the fluid surface.

A method of extracting water from sludge, wherein the sludge includes a magnetic ballast, wherein the sludge is positioned on an interface. It includes applying a magnetic treatment to the magnetically-ballasted sludge to extract water from the sludge.

A method of extracting water from sludge, wherein the sludge includes a magnetic ballast, wherein the sludge is positioned on an interface. It includes applying a magnetic treatment to the magnetically-ballasted sludge to extract water from the sludge.

A device for sludge treatment comprises a supporting frame of an external casing defining a treatment chamber provided with one inlet opening of the sludge to be treated; one discharge opening of the treated sludge; at least one auger element housed within the treatment chamber, and adapted to move the sludge to be treated along a direction of advancement; and filtration means located internally to the treatment chamber and surrounding the auger element; at least one anodic element associated with the auger element, and application means for applying a potential difference between the anodic element and the filtration means, generating an electric field adapted to interact with the sludge to be treated to produce an electro-osmotic process.

A device for sludge treatment comprises a supporting frame of an external casing defining a treatment chamber provided with one inlet opening of the sludge to be treated; one discharge opening of the treated sludge; at least one auger element housed within the treatment chamber, and adapted to move the sludge to be treated along a direction of advancement; and filtration means located internally to the treatment chamber and surrounding the auger element; at least one anodic element associated with the auger element, and application means for applying a potential difference between the anodic element and the filtration means, generating an electric field adapted to interact with the sludge to be treated to produce an electro-osmotic process.

Disclosed is a rake-free thickening device including driving area. The device includes a feed assembly, a diversion assembly and a clean coal collection assembly. The clean coal collection assembly includes a driving area. The diversion assembly includes a central tank. Slime water passes through the feed assembly and flows with a medicament from an upper part of the central tank to a middle of the central tank, and then diffuses around. Bubbles carry the fine slime up after reacting. The driving zone drives the dispersed bubbles to a defoaming zone located in the middle of the central tank. The slime water in the central tank flows through the central tank after defoaming. With the continuously filling of slime water, the slime water above the central tank overflows the central tank to the clean coal collection assembly within the diversion and settlement area.