1672results about "Waste water treatment from food industry" patented technology

An inter-zone aerobic to anoxic zone flow rate control system for single vessel multi-zone bioreactor plants for wastewater treatment is described herein. The system of the invention provides control of the relative treatment times of the mixed liquor in the horizontally disposed and adjacent aerobic and anoxic treatment zones of the bioreactor by providing one or more flow rate adjusting gates located between the aerobic and anoxic zones of the bioreactor. The opening of the gates is adjustable in accordance with sensed conditions in the treatment zones. An automated embodiment of the invention includes a programmable logic controller that provides control scripts for adjusting the opening of one or more flow control gates according to inputs from sensors and per programmed instructions. An automated and supervised embodiment of the invention includes a computer interfaced with a programmable automating controller. The computer provides status reports, commands to the programmable automating controller, storage and analysis of data, as well as a means of communicating to remote monitoring centers and networks.

The present disclosure provides for a system and method that intensely oxidizes water as it navigates through a system and accurately, controllably neutralizes the oxidation by-products before the water exits the system.

The present invention provides an integrated system for treatment of biodegradable waste, including sewage sludge, forestry waste, food waste, agricultural waste, municipal waste, and the like. The integrated system comprises an anaerobic reactor, at least one aerobic reactor, a filtration device, and a desalinization device.

The invention discloses a composite microorganism viable bacteria preparation, which contains pediococcus, yeast and bacillus with the total bacteria count of more than 1 billion per gram. The invention also discloses a method for preparing the composite microorganism viable bacteria preparation, which comprises the following steps: performing amplification liquid culture on various strains respectively according to a conventional method in the field; mixing the materials according to a required proportion; and performing solid fermentation, drying and pulverization to obtain the composite microorganism viable bacteria preparation. The invention also discloses application of the composite microorganism viable bacteria preparation in preparing an organic waste water purifying agent and an aquaculture water body purifying agent, a deodorizer, a degreasing agent or an agent for removing pipe blockages for the hygiene of a refuse tip, a public place, an agricultural product market or a kitchen, feed additives in poultry and animal husbandry or pet culture, and preparations for controlling agricultural microorganism diseases. The composite microorganism viable bacteria preparation can effectively decompose a large amount of putrescent organic matters, inhibit the growth of harmful microorganisms and eliminate peculiar smells, and has the characteristics of high ammonia nitrogen removal rate, no generation of residual sludge, effective deodorization, low cost and the like.

A method dewatering thin stillage process streams generated in the processing of grain to ethanol comprising adding to the process streams an effective coagulating and flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt to form a mixture of water and coagulated and flocculated solids; and separating the water from the coagulated and flocculated solids using a dewatering device.

The present invention discloses a method and apparatus for separating particles and dissolved matter from an untreated fluid stream. Specifically, the present invention includes a first pressure source which transports untreated fluid or contaminated aqueous fluid into a separator annulus with a filter element disposed therein. The untreated fluid is placed under appropriate pressure sufficient to produce turbulent flow, increased particle kinetics and / or cavitation allowing the desired fluid to penetrate and pass into and through the filter media. The treated fluid is then transported to a collection tank. The contaminant matter retained by the filter media may be removed by the nearly instantaneous reverse pressurization of the separator annulus by a second pressure source thereby removing the contaminant particles away from contact with the filter media, and which may then be transported to a waste collection tank or a separator for further treatment.

The invention is directed to a wastewater treatment system having an anoxic biological treatment zone, an aerobic biological treatment zone and a separator. The concentration of oxygen in streams within the system is strategically managed for improved removal of nutrient from the wastewater. A source of biodegradable carbon may be introduced to reduce the concentration of oxygen within the system. An effective treatment time under anoxic or aerobic conditions may further be varied.

The invention relates to a rapid efficient ammonia nitrogen remover and a preparation method and application thereof. The rapid efficient ammonia nitrogen remover is prepared from the following components in percentage by mass: 5-35% of an oxidant, 5-50% of an inorganic coagulant, 2-40% of an adsorption material, 1-15% of a calcium salt and 1-20% of an effervescent disintegrant. The rapid efficient ammonia nitrogen remover can be dissolved in water, and is free of a residue, free of secondary pollution, the operation is simple and convenient, the time required for purifying the water is short, ammonia nitrogen can be quickly and efficiently removed, and the rapid efficient ammonia nitrogen remover has a certain removal effect on COD, total phosphorus and suspended matters at the same time. The rapid efficient ammonia nitrogen remover integrates oxidation, breakpoint chlorination, coagulating sedimentation, adsorption, pH value control and rapid collapse body dissolution, and the ammonia nitrogen can be quickly and efficiently removed.

A system for treating wastewater having a treatment bed of particulate material, inflow distributing plumbing for applying wastewater from a wastewater supply source to upper part of the treatment bed. The wastewater percolates downwardly through the particulate material and is collected by outflow plumbing and conveyed out of the treatment bed. Preferably, the particulate material in the treatment bed is suitable for supporting aquatic plant life.

The present invention relates to compositions including peroxyacetic acid and peroxyoctanoic acid and methods for preventing microbial growth in aqueous streams including the step of applying a composition of the invention to the stream. The compositions and methods can control microbial growth in aqueous streams used for transporting or processing food products.

The invention is directed to a wastewater treatment system having an anoxic biological treatment zone, an aerobic biological treatment zone and a separator. The concentration of oxygen in streams within the system is strategically managed for improved removal of nutrient from the wastewater. A source of biodegradable carbon may be introduced to reduce the concentration of oxygen within the system. An effective treatment time under anoxic or aerobic conditions may further be varied.

A system for treating a substance using a storage vessel and two or more devices disposed in a top of the storage vessel. Each device has: (a) a volute or cyclone head, (b) a throat connected to the volute or cyclone head, (c) a parabolic reflector connected to the throat, (d) a first wave energy source comprising a first electrode within the volute or cyclone head that extends through the outlet into the opening of the throat along the central axis, and a second electrode extending into the parabolic reflector and spaced apart and axially aligned with first electrode, and (e) a second wave energy source disposed inside the throat, embedded within the throat or disposed around the throat. The substance is supplied to the inlet of the volute or cyclone head and is irradiated with one or more wave energies produced by the first and second wave energy sources.

A method dewatering thin stillage process streams generated in the processing of grain to ethanol comprising adding to the process streams an effective flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt to form a mixture of water and flocculated solids; and separating the water from the flocculated solids using a dewatering device.

A method of processing stillage from fermentation derived alcohol is disclosed, including dry-grind ethanol production from corn, by fermentation with filamentous fungi. This produces high-value fungal biomass that can be recovered by screening, is easily dewatered and used as an animal feed, human food or as a source of nutraceuticals. The methodology uses an airlift reactor to enhance the morphology of the fungi for easy harvesting and separation of water for recycling and reuse and to recover added enzymes and mineral acid with the water. The process also separates oil from the stillage. The fungal processing removes organic substances from the water that are otherwise inhibitory to the reuse prospects for the water, i.e. suspended and dissolved organic matter, including glycerol, lactic and acetic acids. The process also separates oil from the stillage by enmeshing the oil in the fungal biomass and can produce more oil through cultivation of oleaginous fungi. This approach generates revenue from low value thin stillage, while substantially reducing stillage processing costs, mainly by averting the need for evaporation of the thin stillage.

A method that can be used in a portable system and apparatus to effectively and efficiently treat aqueous fluids by quickly and reliably adjusting and controlling the free residual level of disinfectants, contaminants or additives through the addition of one or more treating agents such as oxidizing chemicals and / or other special-purpose additives, and that can continuously store, log, retrieve and report the related fluid composition data and other operating parameters on a real-time basis at either the use site or a remote location. A preferred use for the subject method is managing the chemistry of disinfectant, contaminant and / or additive levels in aqueous fluids used in hydraulic fracturing operations, and controlling the free residual levels of the disinfectant or contaminants within the fluids, including fluids maintained in frac tanks during temporary cessation of a hydraulic fracturing operation.

The invention provides a method and apparatus for reducing the energy needed to process stillage in an ethanol refining operation. The method involves adding to stillage an effective amount of at least one processing aid. The flocculant induces the separation of insoluble material that would otherwise remain suspended in water but which impose a high shear energy cost on the refining processes. This allows for the removal of insoluble material that would otherwise be overlooked but which increase energy costs. This allows for more efficient and effective separation and recovery of insoluble fractions of the concentrated thin stillage that would otherwise be overlooked and lost in the process. Loss of these valued fractions as a result of traditional processing techniques and those requiring extensive additional energy input results in the loss of high value co-products to low revenue process streams. This allows stillage to be processed more rapidly with a lower energy cost and improved co-product recovery economics.

Embodiments include a method and apparatus for recovering ammonia and nitrogen from a waste stream. Embodiments further include recovering ammonia using an ammonia recovery process and a biological nitrogen recovery process. In some embodiments, a return stream from the ammonia recovery process may be used to provide alkalinity, carbon substrate, and / or biological oxygen demand to the biological nitrogen recovery process. In some embodiments, a hydrothermal sludge process may be used to further treat the waste stream and provide additional return to the ammonia recovery system. Other embodiments include an ammonia recovery system for conducting the ammonia recovery process, a biological nitrification and / or denitrification system for conducting the biological nitrogen recovery process, and an optional hydrothermal sludge processing system.

A method and apparatus for implementing pathogen reduction within a poultry processing or food processing plant that uses water that has been treated with chloramines at an advantageous dosage before being introduced to the production process at processing steps. The water treated with chloramines may be from a fresh water source or reclaimed water from the processing plant. The reintroduction of the treated reclaimed water advantageously causes a dramatic reduction in the levels of microorganisms associated with poultry processing, while substantially conserving water use.

A mediated electrochemical oxidation process is used to treat, oxidize and destroy food waste materials, such as manure, biological residue, hay, straw, animal byproducts, bones, horns, blood, biological items, pathological waste and combined waste. Food waste is introduced into an apparatus for contacting the waste with an electrolyte containing the oxidized form of one or more reversible redox couples, at least one of which is produced by anodic oxidation in an electrochemical cell. The oxidized species of the redox couples oxidize the organic waste molecules and are themselves converted to their reduced form, whereupon they are reoxidized by either of the aforementioned mechanisms and the redox cycle continues until all oxidizable waste species, including intermediate reaction products, have undergone the desired degree of oxidation. The process takes place at temperatures between zero degrees centigrade and below the boiling point of the electrolyte.

Contemplated devices and methods include an electrolytic cell having a cathode and a carbon felt anode, wherein the carbon felt anode is configured as a flow-through anode for an aqueous solution in which a contaminant is dissolved or dispersed. The cell is operated at a current density that promotes formation of oxidizing species in neutral pH to thus destroy the contaminant and at a flow rate sufficient to prevent oxidative damage of the carbon felt.

Described are chemical formulations that remove heavy metals from waste solutions containing a chelating agent. Also disclosed are methods for removing heavy metals from waste solutions utilizing such chemical formulations.

The disclosed invention is an improved method for treating ethanol distillation still bottoms by recovering, through solids separation and pressurized membrane filtration, potable water from still bottoms for human consumption by bottling or for reuse, and concentrating the solids with beneficial properties recovered such as chemicals, nutrients and medicinals before anaerobic digestion. The invention is on improved process because it can reduce the volume of solids to manage, recovers the water from the fermentation still bottoms while pasteurized, maintains the chemical and physical properties of solids for beneficial property recovery, improves ethanol and energy efficiency, and results in clean discharge to the environment including carbon dioxide recovery. A bioreactor produces a gas rich in methane fuel from the concentrate to power the pressurized filtration process and an aqueous ammonia solution to recover or recycle. This invention improves environmental quality, conserves energy, and produces a beverage water for bottling that can be of an organic origin with reliable source and quality.

The invention discloses a method for treating wastewater containing molasses alcohol. The specific process of the method comprises the following steps: firstly, carrying out the coagulation sedimentation pretreatment on the wastewater; further carrying out the two-stage anaerobic treatment on the pre-treated wastewater; then, carrying out the aerobic treatment on the treated wastewater; and finally, carrying out the advanced oxidation treatment on the treated wastewater on the basis of the Fenton advanced oxidation method and air floatation method. The method of the invention has the advantages of simple operation, low treatment cost and high biochemical efficiency, and guarantees that the effluent subjected to the advanced treatment can meet the standards.

A method dewatering thin stillage process streams generated in the processing of grain to ethanol comprising adding to the process streams an effective flocculating amount of an anionic copolymer comprising acrylic acid sodium salt, methacrylic acid sodium salt or 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt to form a mixture of water and flocculated solids; and separating the water from the flocculated solids using a dewatering device.

A method for hydrogen production from biodegradable feedstocks in which a feedstock having at least one biodegradable solid is introduced into a first stage anaerobic bioreactor operating at thermophilic conditions to form a liquid effluent which includes fatty acids. The liquid effluent is transferred through a plurality of hollow semipermeable fibers disposed in a second stage anaerobic bioreactor having a light transmitting wall, which hollow semipermeable fibers have an outer surface coated with a biofilm of photosynthetic bacteria, which photosynthetic bacteria, using the nutrients in the hollow fibers and the incoming light, generates hydrogen.

Methods for steady state operation of an upflow anaerobic digester using organic matter that contains a portion of solid, non-digestible matter include (1) providing an upflow anaerobic digester, (2) providing a bacterial culture in the upflow anaerobic digester for the breakdown of organic matter, (3) introducing an influent into the upflow anaerobic digester, wherein the influent comprises a biodegradable component, a liquid component, and an amount of solid non-digestible matter, (4) operating the upflow anaerobic digester in a steady-state, (5) accumulating the solid, non-digestible matter in the upflow anaerobic digester, (6) and removing a portion of the accumulated solid, non-digestible matter from the upflow anaerobic digester through the bottom of the upflow anaerobic digester while maintaining steady-state operation of the upflow anaerobic digester. Steady-state operation of the upflow anaerobic digester is maintained by selecting a percentage of the total volume of the liquid and material that are flushed from the digester for a given period of time so as to preserve the steady-state of the bacterial culture.

The invention discloses a water disposal facility and method. The water disposal facility comprises a membrane desalination unit, a first channel, a second channel, an electric separation unit, a third channel, a fourth channel, a sediment unit, a fifth channel, a sixth channel, a seventh channel, and an additive unit, wherein the first channel is used for inputting a first input flow into the membrane desalination unit; the second channel is used for outputting a first product flow with the salt content lower than that of the first input flow from the membrane desalination unit; the third channel is used for outputting a first discharge flow with the salt content higher than that of the first input flow from the membrane desalination unit into the electric separation unit; the fourth channel is used for outputting a second product flow with the salt content lower than that of the first discharge flow from the electric separation unit; the fifth channel is used for outputting a second discharge flow with the salt content higher than that of the first discharge flow from the electric separation unit into the sediment unit; the sixth channel is used for outputting a second input flow with the salt content lower than that of the second discharge flow from the sediment unit into the electric separation unit; the seventh channel is connected with the sediment unit and is used for discharging the discharge flows; and the additive unit is communicated with at least one of the electric separation unit and the sediment unit.

The invention discloses organic pollution resistance ion exchange resin, and a preparation method and an application of the resin, and belongs to the technical field of improving performances of the ion exchange resin. During preparation of the ion exchange resin, an inorganic particle which is wrapped with a modifier and is equivalent to 0.1-30% of mass of the resin is added to increase a water content of the resin by 3-30%, so that a resin structure is improved, and the regeneration efficiency of the resin is improved by 0.4-70%. The organic pollution resistance of the ion exchange resin in the water treatment application can be improved, the service life of the ion exchange resin is prolonged, the ion exchange resin can be regenerated and used stably for a long term in the water treatment application, ensure a water treatment effect and avoid complicated operation and cost pressure caused by frequent resin replacement, and the method is simple, effective and low in cost.