18425 results about "Sedimentation" patented technology

A strut (12) is configured for an active suspension system (142) which provides electronic control for both the force applied by the strut (12) and the dampening characteristics of the strut (12). A compressible fluid (18) is used within the strut (12), and preferably includes a compressible base fluid and electromagnetic field responsive particles (132) which are suspended in the compressible base fluid. The electromagnetic field responsive particles (132) are preferably closely matched in density and modulas of elasticity to that of the compressible base fluid to prevent sedimentation of the particles (132) and to maintain the elasticity of the compressible fluid (18). The amount compressible fluid (18) within the strut (12) is electronically controlled to determine the force applied by the strut (12) and a field strength applied to the compressible fluid in a fluid flow passage is electronically controlled to determine the dampening characteristics of the strut (12).

The invention relates to an ultrasonic combined waste water treatment process of refuse leachate, relating to the technical field of waste water treatment and recycling of resources and environmental protection. The ultrasonic combined waste water treatment process of the refuse leachate comprises the following steps of: enabling waste water to enter a regulating pond; treating colloids, amphoteric substances and heavy metals in a coagulation sedimentation pond; eliminating ammonia nitrogen in an ultrasonic catalytic oxidation pond; sequentially sedimentating through biological treatment in an ABR (Acrylate Butadience Rubber) baffle plate anaerobic pond, a hydrolytic pond, a facultative pond and an aerobic pond; filtering in a CMBR (Chatter Membrane Bioreactor); eliminating waste gases and stench in a carbon filter pond; disinfecting in a contact disinfection pond; and filtering in an RO (Reverse Osmosis) membrane reverse osmosis system so as to obtain water meeting the requirements for emission standards. The invention also provides a treatment system for the ultrasonic combined waste water treatment process. The ultrasonic combined waste water treatment process and system can obtain the outflow water with stable quality by treating the refuse leachate; the treatment system has the advantages of small size and occupying area, high efficiency, low energy consumption and easy realization for mechanical-electrical integration control and management; and in addition, the invention is beneficial to the protection of the original landscapes of a construction party by adopting a non-buried type structure and also reduces the influence of the operation of the treatment system on an office area.

A method of disposing waste includes the step of forming a primary waste pond called an Advanced Facultative Pond (AFP). A stable microbiological methane fermentation zone is established within the AFP. The system constitutes a complete primary treatment of organic waste and wastewater that does not require daily sludge handling typically associated with organic waste treatment and disposal. The method of the invention converts organic compounds, including settleable solids, into methane. The invention controls sulfide odors from methane fermentation. The invention also provides a method of filtering raw wastewater through a bed of fermenting organic solids suspended by gas evolved in a fermentation zone. Hydrogen sulfide is oxidized in accordance with the invention. The technique of the invention biologically increases pH near the pond surface, thus retaining hydrogen sulfide in solution in the pond water. The biological increasing of the pH level near the pond surface increases the rate of die-away of pathogenic bacteria. The invention transforms proteins and other organic nitrogen compounds to nitrogen gas. The invention also transforms proteins and other organic nitrogen compounds to nitrogen gas; the invention detoxifies chlorinated hydrocarbons and volatile organic compounds; the invention captures and stores gases evolved from methane fermentation; the invention removes heavy metals, while establishing meromixis in fermentation cells or zones within primary wastewater ponds.

A method is disclosed for simulating the formation of sedimentary deposits. In one embodiment, this method involves, (a) solving a two-dimensional time-dependent map view system of equations for at least flow momentum, flow height, suspended sediment concentration, and entrainment of overlying water, (b) calculating net sediment deposition at each map view location using the flow properties, (c) recording the time-variability of the net sediment deposition.

The invention is a method for simulating sandstone deposition. The sandstone is simulated by estimating the grain size distribution and mineral composition of grains in the sandstone, simulating sedimentation of grains from the grain size distribution and mineral composition of the grains, simulating compaction of the grains, and simulating cementation of the grains. Properties of the sandstone such as porosity and permeability may be estimated from the simulated sandstone. The method permits multiple mineralogies to be simulated during the burial history of sedimentation, compaction and cementation.

A centrifugal separator device (10) for separating solid and / or liquid particles which are suspended in gas media, which device comprises a rotor (12) which is provided sedimentation members (14), which is rotatably mounted in a surrounding stationary housing (20) and which has a central inlet for the gas medium which is to be cleaned. The housing (20) has, on the one hand, an outlet (32) for cleaned gas which, during its passage through the sedimentation members (14) in the rotor (12), has been freed form solid and / or liquid particles, and, on the other hand, an outlet (28 a-c) for solid and / or liquid particles which have been transferred onto the inner side of the housing. A number of parallel guide rails (26), which run helically, are arranged on the inner side of the housing and extends axially at least over a major part of the length of the rotor (12), and the outlet (32) in the housing for cleaning gas is located, with respect to the axis, at one end of the rotor (12) while the outlet (28a-c9 for the particles which have been collected on the housing wall is located at the opposite axial end of the rotor. The guide rails (26) are arranged in a direction on the inner side of the housing in relation to the direction of rotation of the rotor which is such that a peripherally outer of a gas vortex generated by the rotor is forced to entrain the particles which have been collected between the guide rails toward the particles outlet.

The invention relates to a treatment method of high-concentration wastewater. The treatment method comprises the following steps: (1) pretreatment; (2) flocculent sedimentation treatment; (3) biochemical treatment; (4) membrane biological reaction treatment; (5) adsorption treatment; (6) oxidation treatment; (7) filtration treatment; (8) membrane treatment; (9) disinfection treatment; and (10) evaporative crystallization treatment. The method disclosed by the invention has the advantages that the wastewater with the COD (Chemical Oxygen Demand) concentration up to 96000mg / L can be treated and the COD removing rate is up to 99.98% to ensure that the treated wastewater meets the standards of drinking water and an unexpected technical effect is brought; compared with a dozen or dozens of hours in the prior art, the aerobic reaction time and the anaerobic reaction time are greatly shortened and the treatment efficiency is obviously increased; and the concentrated solution finally generated in the method only accounts for below 2% of water inflow, which is greatly reduced compared with the prior art, so that the waste of water is obviously reduced and the treatment cost is saved.

Solids removal assemblies (14) adapted for use in flow-through or batch-type sedimentation tanks (12) are provided which increase the efficiency of solids removal and eliminate physical scraping devices common with such sedimentation tanks. The preferred removal assemblies (14) include an elongated hood (34) disposed over a cooperating and complementally configured fill structure (26,28), which fills the majority of the internal volume of the hood (34). The hood (34) includes converging sidewalls (44, 46) having lower most inlet openings (54) and spaced, tubular outlets (56) adjacent the apex thereof. Outlet pipes (64) are operably coupled with each of the hood outlets (56) for suction withdrawal of waste water-solids suspensions which are then conveyed for downstream processing. The hood (34) and fill structure (26, 28) cooperatively define restricted flow paths for the waste water-solids suspensions, and assist in the creation of relatively high velocity movement of the suspensions to prevent bridging or clogging by collective solids adjacent the bottom of the tanks (12).