A filter assembly separating organic waste from water includes a first annular filter element defining an axis. The first annular filter element is defined by a first annular coil of flat wire and an optional second filter element is defined by a second annular coil of flat wire, being generally helical in the axial direction. A cylindrically or frustoconical filter membrane is concentrically disposed between the first and second annular filter element. The filter membrane is porous having aperture size of less than a nano-particulate size of the organic waste, but greater than a nano-particulate size of the water molecule. The second annular filter includes adjustable porosity for selectively preventing particles from reaching the filter membrane and selectively cleaning the membrane by reversed flow of water through the membrane. The assembly generates radial and distal flows and differential pressure forces, for use in high throughput industrial, agricultural and municipal facilities.

A system for transferring marine life within an aquaculture facility including a plurality of segregated storage facilities each containing water for marine life, maintained within a predetermined temperature range and supported at independent ground levels. The storage facilities are successively disposed and structured to contain marine life at different stages of growth. A transfer assembly includes a path of fluid flow interconnecting successive ones of said plurality of storage facilities in fluid communication with one another, wherein at least a majority of a length of said path of fluid flow is disposed beneath the independent ground levels at a predetermined depth, which is sufficient to facilitate maintenance of the path of fluid flow within the predetermined temperature range, via geothermal cooling.

The invention pertains to a bio-carrier to carry a biofilm in a moving bed biofilm reactor (MBBR), the carrier being a particle comprising dehydrated sludge. The use of a bio-carrier in a MBBR process to purify a liquid from contaminants is disclosed and a method of manufacture of a bio-carrier is provided.

A method for an ex-situ carbonization and solidification of silt soil using an active magnesium oxide, pertaining to the field of civil and hydraulic engineering. The method includes the steps of silt pretreatment, homomixing of solidifying agents, silt granulation, carbonization by carbon dioxide, exhaust gas/waste liquid collection, and resource utilization. In the method, the supply amount of the solidifying agent is adjusted through the actual measurement of the moisture content, and the granule size and carbon dioxide pressure are adjusted according to the soil properties. Therefore, a full mixing of the silt with the solidifying agents and a rapid carbonization of the magnesium oxide solidified silt granules can be achieved. Moreover, the dust and carbon dioxide can be absorbed during the operation, thereby avoiding secondary pollution. The silt carbonized granules can be used as filling materials for roadbeds, airport runways, engineering backfills, etc.

This combined dehydration device continuously supplies primarily dehydrated sludge to a sludge supply part, the combined dehydration device including: a multiple rotary disk-type solid-liquid separation device and an electroosmosis dehydration device. In the multiple rotary disk-type solid-liquid separation device, a plurality of rotary shafts in which a plurality of rotary disks are fitted and mounted are arranged from the upstream side toward the downstream side and pivotally supported; while the rotary disks are rotated, water to be treated including sludge is supplied from over the rotary disks at the upstream side and is subjected to a primary dehydration treatment; and first dehydrated sludge on the rotary disks is fed and discharged from a sludge discharge part located at the most downstream portion of the rotary disks. In the electroosmosis dehydration device, a sludge supply part is provided at the upstream side of an endless filtration fabric spread between rollers.

Compositions, systems, and methods of using alkaline-producing Aluminate salts in the sludge collection and digestion steps of wastewater processing to reduce acidity and/or build alkalinity, reduce hydrogen sulfide release, and reduce phosphate in the effluent.

A wastewater treatment system, including a wastewater phase-separation device, may be used to combine at least one primary treatment chemical and wastewater to produce cleaned water and a sludge byproduct. The wastewater treatment system may also include a wastewater dewatering device that may be used to combine the sludge byproduct and at least one secondary treatment chemical to produce a Medium to High Solids Content Sludge without excess water. A method for producing sludge for cement manufacturing may include combining wastewater and at least one primary treatment chemical to form a liquid phase and a solid phase, where the liquid phase includes clean water and the solid phase includes a sludge byproduct, separating the liquid phase from the solid phase, combining the solid phase with at least one secondary treatment chemical to form an intermediate that contains excess water, and removing the excess water from the intermediate to form a Medium to High Solids Content Sludge.

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.

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.

Disclosed herein is an apparatus for facilitating purification of sludge and tailing, in accordance with some embodiments. Accordingly, a sedimentation unit receives sludge and tailing in a first tank, separates wastewater from the sludge and the tailing, and transfers the wastewater from the first tank to a second tank. Further, a centrifugal unit creates a vortex in the wastewater. Further, a thermal hydrolysis unit coagulates a second impurity of the wastewater using coagulants and transfers the wastewater from the second tank to a third tank. Further, a digesting unit digests a macromolecule of the wastewater into a compound and transfers the wastewater from the third tank to a fourth tank. Further, a nutrient removal unit filters the wastewater from the compound and transfers the wastewater from the fourth tank to a fifth tank. Further, a reservoir unit disinfects the wastewater and stores the wastewater in the fifth tank.