8674results about "Flotation" patented technology

Accordingly, in one embodiment of the invention, a bioreactor system is presented and includes a disposable container for housing biomaterials for processing, the disposable container including at least one input port, at least one exhaust port, at least one harvest port, and the integrity of the sterile environment is protected with sterile filters attached to all external open ports a structure for supporting the disposable container, one or more sensors for sensing one or more parameters of the biomaterials in the container, a heater for heating the contents of the container, the heater having a thermostat and mixing system arranged with the system such that biomaterials contained in the disposable container are mixed.

Peer-to-peer redundant file server system and methods include clients that determine a target storage provider to contact for a particular storage transaction based on a pathname provided by the filesystem and a predetermined scheme such as a hash function applied to a portion of the pathname. Servers use the same scheme to determine where to store relevant file information so that the clients can locate the file information. The target storage provider may store the file itself and / or may store metadata that identifies one or more other storage providers where the file is stored. A file may be replicated in multiple storage providers, and the metadata may include a list of storage providers from which the clients can select (e.g., randomly) in order to access the file.

Methods and apparatus employing membrane filtration in biodegradation processes for treatment of wastewater are described. A bioreactor system is described having an equalization system, a membrane bioreactor system, and a controller. Aeration systems for a membrane bioreactor, such as a mixer, and an ultrafilter subsystem are also described, as is a rotary membrane ultrafilter.

The invention relates to a screen method for vanadium titano-magnetite with high quality, belonging to the ore screen field. The method adopts three stage-grinding and stage-concentration process for magnetic separation, wherein the field intensity of one-stage magnetic separation is 3000-4000 Gs; the field intensity of two-stage magnetic separation is 1800-2200 Gs; and the field intensity of three-stage magnetic separation is 1300-1700 Gs. The recovery rate of the screened iron ore concentrate and the titanium ore concentrate is high and the screened cost of the screened iron ore concentrate and the titanium ore concentrate is low, thus providing a new selection for the low grade vanadium titano-magnetite resource and having a broad application prospect.

The present invention is in the field of cell bioreactors, and specifically in the field of disposable bioreactors.

A treatment system to efficiently remove lead from dust contained in extracted cement kiln combustion gas while reducing facility and running costs. A treatment system 1 comprising: a probe 3 for extracting a part of combustion gas, while cooling it, from a kiln exhaust gas passage, which runs from an inlet end of a cement kiln to a bottom cyclone; a classifier 5 for separating coarse powder from dust contained in the combustion gas extracted by the probe 3; a wet dust collector 6 for collecting dust from the extracted gas containing fine powder discharged from the classifier 5; and devices 12, 13 for feeding sulfurizing agent for sulfurizing lead contained in the kiln exhaust gas to the wet dust collector 6, and others. From the sulfurizing-agent feeders 12, 13 are preferably added the sulfurizing agents to a circulation liquid tank 7 or a pump 9 for circulating slurry. The slurry obtained by the wet dust collector 6 is separated into froth including lead and tail side slurry including gypsum by a flotation facility 14, 17, 18.

Animal waste such as fecal material from swine, chicken, turkey, and cattle is converted into useful forms such as fertilizer, other types of soil builders, and even nutrient feed additives. Devices, systems, and methods are provided that allow economical conversion and in many instances, alleviate the production and release of undesirable gases such as sulfide and ammonia. In one embodiment, undesirable anaerobic and facultative anaerobic bacteria are killed at a greater rate than desirable soil compatible aerobic bacteria. The use of low temperature killing diminishes off gassing commonly associated with other techniques, and the use of gas trapping additives such as zeolites provides enhanced soil building qualities such as slow release of nitrogen and slow release of moisture to soil. The methods allow convenient adjustment of composition, allowing conversion of waste into tailored designer fertilizer suited for particular soils. Other embodiments provide other soil building qualities as well as nutrient qualities for feedstock used in animal husbandry such as aquaculture.

The invention relates to a special flotation column of coal fly ash, an ore pulp distributor is arranged at the top part of a cylinder body of the special flotation column, a plurality of layers of bubble plates are arranged in the cylinder body, a multi-point rotary flow device and a multi-point fly ash overflow hole are arranged at the lower part of the cylinder body, an ore pulp distributing pipe is arranged at the periphery of the ore pulp distributor, a circulating pipeline is arranged at the periphery of the cylinder body, the upper end of the circulating pipeline is connected and communicates with the ore pulp distributing pipe, the lower end is connected and communicates with the rotary flow device, an interface of the ore pulp distributing pipe and a feed and discharge port are respectively connected with the both ends of a circulating pump, a high carbon ash balance overflow plate and a high carbon ash overflow collection port are further arranged at the upper part of the flotation column, and the fly ash overflow hole is provided with a fly ash automatic regulation box by the connection of the pipeline. The special flotation column is applicable to various requirements, the decarburization effect is good, the continuous operation is stable and reliable, the quality of fine coal is high and the processing ability is great, thus saving energy, increasing efficiency and saving investment.