904results about "Waste water treatment from animal processing" 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.

A method of and apparatus for treating liquids flowing in a thin film around a source of wave energy to directly expose the liquid to the wave energy, preferably generated in whole or part by an electrical arc between carbon electrodes. In addition to the wave energy generated by the electrical arc, energy generated by cavitation of the flowing liquid may be used in treating the liquid.

The present invention provides a system, method and apparatus for treating a liquid by providing a wave energy source and creating a thin film of the liquid whirling around the wave energy source such that one or more wave energies irradiate the liquid. Likewise, the present invention provides a method of treating a liquid by providing three zones of wave energy and passing the liquid through the three zones of wave energy.

The present invention provides a system, method and apparatus for treating a liquid by providing a wave energy source and creating a thin film of the liquid whirling around the wave energy source such that one or more wave energies irradiate the liquid. Likewise, the present invention provides a method of treating a liquid by providing three zones of wave energy and passing the liquid through the three zones of wave energy.

A method and apparatus are provided for the electrochemical treatment of an aqueous solution in an electrolytic cell. Output solution having a predetermined level of available free chlorine is produced by applying a substantially constant current across the cell between an anode and a cathode while passing a substantially constant throughput of chloride ions through the cell.

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 for treatment of liquid waste is disclosed that includes the steps of (a) submitting the liquid waste to a pretreatment and (b) submitting the pretreated liquid waste to the action of fungi or active agents thereof. In particular, the described process is useful for the effective decoloration and detoxification of dye-containing liquid wastes using white rot fungi or active agents thereof.

An apparatus for synergistically combining a plasma with a comminution means such as a fluid kinetic energy mill (jet mill), preferably in a single reactor and / or in a single process step is provided by the present invention. Within the apparatus of the invention potential energy is converted into kinetic energy and subsequently into angular momentum by means of wave energy, for comminuting, reacting and separation of feed materials. Methods of use of the apparatus in the practice of various processes are also provided by the present invention.

The present invention includes an apparatus for separating particulates from a fluid in a suspension, comprising: a housing defining a frusto-conically shaped inner chamber with an inner wall, an inlet and a first outlet communicating with the chamber, and a second outlet; and a spinning assembly with a hollow interior mounted in the chamber, the assembly being shaped to define an annular gap with the chamber inner wall, the hollow interior communicating with the second outlet, and the hollow interior communicating with the annular gap for flow of fluid materials from the gap into the interior and out of the second outlet in response to rotation of the spinning assembly. The separator finds application in the preparation of waste products such as municipal sewage sludge for processes that produce useful materials including gas, oil, specialty chemicals, fertilizer, and carbon solids, in reliable purities and compositions, and with high energy efficiency.

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.

A process is provided which can be used to clarify substantially aqueous streams and optionally separate biosolids, especially proteins, from food processing operations which comprises contacting an aqueous stream comprising biosolids with an anionic inorganic colloid and an organic polymer to flocculate the biosolids.

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.

In the processing of poultry, equipment, instruments, apparatus and / or water used in such processing, and / or carcasses and / or parts of poultry resulting from the processing of poultry, are disinfected with aqueous solutions of certain halogen-based microbiocides, especially certain bromine-based microbiocides. Described are the particular microbiocides used and the substantial advantages of using such materials, in some cases as concentrated solutions and in other cases as dilute solutions.

The invention discloses a rhodococcus erythropolis (rhodococcus sp.) BZ-9 which is preserved in the China General Microbiological Culture Collection Center with the accession number of CGMCC No.3695. The invention also discloses a microbial inoculum, the active component of which is the rhodococcus erythropolis BZ-9. The rhodococcus erythropolis BZ-9 and the microbial inoculum thereof have high-efficient degradation performance on various toxic organic substances as well as high degradation ability even under the condition of chromium (VI), and are applicable to treatment on coking wastewater, tanning wastewater, printing and dying wastewater and other organic wastewater containing phenol, pyridine and other toxic organic substances produced in the process of the production of the petrochemical industry.

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.

This invention relates to a refuse landfill leachate wastewater treatment system comprising a collection well, an adjustment tank, a filter, a comprehensive treatment system having a multi-stage anoxic / aerobic pool and a membrane biological reactor. The process of treatment is: waste water enters a adjustment tanke in which water quality and quantity are adjusted; subsequently, enters a filter, the water discharged from the filter and enters a comprehensive treatment system having a multi-stage anoxic / aerobic pool and a membrane biological reactor, wherein waster water is bio-chemically treated to remove the organic substances, nitrogen and ammonia, and then the wastewater is discharged into a catalyzed oxidation tower; the organic substance in waste water is oxidized on effect of ozone and under the existing catalyst function and then the biochemical capacity thereof is enhanced; and then the catalyzed and oxidized waste water enters carbon filter pool, the remaining contaminated matter can be further removed by degradation of the anoxic oxidation of the biological membrane on the packing material in pool, then the output water meets the requirement of National Standard or other relevant industrial standards.

The invention discloses a biological modified straw adsorbent, and a preparation method and application thereof. The method comprises the steps of: crushing the straw to prepare a straw powder; mixing the straw powder with a synergistic agent and water, and inoculating microbial strain for modification to conduct fermentation; and after the fermentation, taking out the modified straw powder and drying to prepare the adsorbent. The microbial strain is Trichoderma viride CGMCC3.5455, Trichoderma koningii CGMCC3.2774, Aspergillus niger CGMCC3.4309, Rhizopus stolonifer CICC40317, and Trichoderma koningii CICC 40108. The invention uses straw powder as a carbon source to conduct solid fermentation, so as to produce the adsorbent. The production process does not produce wastewater, waste gas or waste residue, and is energy-saving and environment-friendly. The prepared adsorbent has strong capacity, and can be used for treatment of tanning wastewater and dyeing wastewater.

A method and apparatus for the electrochemical treatment of an aqueous solution in an electrolytic cell is described. Output solution having a predetermined level of available free chlorine is produced by applying a substantially constant current across the cell between an anode and a cathode while passing a substantially constant throughput of chloride ions through the cell.

A method and apparatus for the electrochemical treatment of an aqueous solution in an electrolytic cell is described. Output solution having a predetermined level of available free chlorine is produced by applying a substantially constant current across the cell between an anode and a cathode while passing a substantially constant throughput of chloride ions through the cell.

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 nano catalytic electrolysis flocculation device, relating to an electrolysis flocculation device. The nano catalytic electrolysis flocculation device has the advantages of extremely low working voltage between two adjacent electrodes, large current density, small energy consumption, high electrical efficiency and no electrode consumption and electrolysis, and integrates solid-liquid separation function and gas-liquid separation function. The bottom of a shell is provided with a water inlet; the shell is internally provided with a scum baffle and a watertight shutter; the scum baffle and one inner side of the shell form a water discharging chamber; a gap is reserved between the bottom of the scum baffle and the bottom of the shell; the scum baffle and the other inner side of the shell form a slag discharging chamber; a gap is reserved between the top of the watertight shutter and the top of the shell; a hydrogen exhaust port is arranged on the top of the shell; an electrolyzer is arranged between the scum baffle and the watertight shutter; the top of the electrolyzer is open and the gap is reserved between the top of the electrolyzer and the top of the shell; electrodes are installed in the electrolyzer; a gas-liquid separation chamber is formed in the shell on the upper part of the electrolyzer; and a drain outlet is arranged at the bottom of the shell and us positioned between the watertight shutter and the adjacent electrolyzer.

The inventions of the present disclosure are directed to processes designed to recover water used in certain aspects of the processing of poultry, treat the recovered water to remove solids, fats, oils and greases, animal proteins and pathogenic organisms and to reuse the treated water for poultry processing operations. The processes described herein reduce bacteria and microorganisms associated with the poultry and reuse water. The present disclosure can be employed with an approach that includes unexpected positive results of reacting ozone and chlorine with water being treated for reuse to generate hypochlorous acid and / or other effective biocides. Ozone reacts with fats, oils, and greases, dissolved in the reuse water, to produce specific surface-active agents and surfactants which reduce the surface tension of the water which it is dissolved. The combination of these surface-active agents and surfactants and the biocides cause an extraordinary release and destruction of bacteria from the poultry carcass as well as the reuse water.

A liquid bubble separator of a circulating water system contains: a cylindrical tank, a pump, a bubble collection tank, and at least one micro bubble generating unit. The cylindrical tank included a water chamber defined by an inner wall, an inlet pipe, an outlet pipe, at least one air orifice, and a bubble discharging hole. The pump is coupled with the inlet pipe to pump treated water into the inlet pipe via the nitrification tank. The bubble collection tank is mounted on one side of the cylindrical tank and includes a collecting tube. Each micro bubble generating unit is disposed in the water chamber and includes a body, a first mixing room, an inlet, at least one air tube coupling with the at least one air orifice and corresponding to the inlet, and a plurality of backflow apertures formed around the body and communicating with the first mixing room.

The invention discloses a method for treating leather-making industrial wastewater, sequentially comprising the following steps of: filtering, homogenizing; air flotation sludge scraping; adding alkali and flocculant to obtain sedimentation; separating mud from water; regulating pH value back; carrying out anoxic biochemical treatment and aerobic treatment; and delivering wastewater into a membrane biological reaction tank. The membrane biological reactor is filled with cultivated activated sludge and provided with a hollow fiber membrane assembly, and water is pumped out by a dump pump afterfiltered by the membrane assembly. In the method, the hollow fiber membrane assembly is adopted to replace a secondary sedimentation tank in the traditional technique and reduce the occupied area of the treatment system; meanwhile, the problem of sludge expansion in the traditional suspension activated sludge process is solved; the quality of outflow water is stable and reliable; and the operation is relative simple and convenient.

The invention relates to a landfill leachate wastewater treatment system and a process thereof. The system comprises a collecting well, an adjusting tank, a filter, a multi-stage anoxia / aerobic pool and membrane bioreactor comprehensive treatment system, an advanced catalytic oxidization tower and a biological carbon filter. The treatment process has the following flows that: wastewater enters the adjusting tank to undergo the adjustment of water quality and water quantity in the adjusting tank; then, the wastewater enters the filter, the water out of the filter enters the multi-stage anoxia / aerobic pool and membrane bioreactor comprehensive treatment system to undergo biochemical treatment in the system, organic matters and ammonia nitrogen are removed, and the water out of the system enters the catalytic oxidization tower; in the presence of a catalyst, organic matters in the wastewater are oxidized by ozone, and the biodegradability is improved; and the water after catalytic oxidization enters the carbon filter, residual pollutants are further removed through cooperation of the aerobic oxidative degradation of a biomembrane on a filling material in the filter and the absorption of active carbon, and then the water out of the carbon filter can meet the national first grade emission standard or the emission standards of related industries.

The invention belongs to the field of sewage treatment and relates to a biological treatment method for high-concentration wastewater with high ammonia nitrogen content, in particular to a biological tannery wastewater treatment system and a treatment method thereof. The biological tannery wastewater treatment system comprises a first-stage gridding aeration tank, a horizontal flow sedimentation tank, a second-stage gridding aeration tank and a radial flow sedimentation tank which are communicated sequentially, wherein the bottom of the horizontal flow sedimentation tank is communicated with a material inlet of the first-stage gridding aeration tank through a backflow pump; and the bottom of the radial flow sedimentation tank is communicated with a material inlet of the second-stage gridding aeration tank through the backflow pump. According to the treatment method, the organic degrading proportion and the denitration function of the system are enhanced by two-stage aeration. The treatment system and the treatment method which are disclosed by the invention has the advantages that the treatment effect is obvious, running maintenance is facilitated, the energy consumption is low, and the treatment cost is low; and obvious economical and beneficial benefits are realized.

The invention discloses a live pig slaughtering wastewater treating method which comprises the steps of (1) removing thick and large materials and pig hairs in wastewater as slaughtering wastewater firstly passes through a mechanical grating screen; (2) removing animal oil and pollutants with specific gravity more than that of water in the wastewater by enabling wastewater to flow into an oil separating sedimentation tank; (3) hydrolyzing macromolecules and organic matters which are difficult to degrade; (4) carrying out EGSB (expanded granular sludge bed) degradation on most part of organic matters in the wastewater; (5) carrying out degassing sedimentation on sludge contained in water from the step (4) in a middle sedimentation tank; (6) improving SBR (styrene butadiene rubber) degradation or converting parts of the organic matters and a large part of ammonia nitrogen; (7) disinfecting; and (8) reducing ammonia nitrogen concentration in water in a stabilization pond. The method aims at slaughtering wastewater characteristics that the water quality and the water amount are large in changing amount, and the COD (chemical oxygen demand), the ammonia nitrogen and the SS (suspended matters) are high, simultaneously considers the problems of deep denitrification and deep organic matter removal, is good in treatment effect, enables the discharged water quality to meet one level of effluent standards after the slaughtering wastewater is treated, and is lower in operating cost and convenient to popularize and apply.