65 results about "Electro coagulation" patented technology

The present invention discloses a process and an apparatus for removing deep sub-micron particles from water. The invented process includes adjusting pH value and conductivity, adding an oxidation agent, performing an electro coagulation reaction/an electro-oxidation reaction, and performing a flocculation sedimentation, etc. The invented apparatus includes a front adjustment tank for adjusting the properties of waste water, wherein the adjustment includes a pH adjustment, an electrolyte adjustment, or an oxidant addition, etc.; an electrocoagulation reaction tank receiving water from the front adjustment tank and having pairs of separated electrodes, one of the electrodes being made of iron; a rear adjustment tank for adjusting pH value of the effluent of the electrocoagulation reaction tank; and a sedimentation reservoir for providing the resulting pH-adjusted, sedimentary floccule-containing water from the rear adjustment tank with a sufficient residence time in said sedimentation reservoir, so that floccules and sedimentation are formed therein.

Systems and methods have been developed for treating waste water and produced water, so as to remove contaminants therefrom. The systems and methods allow specifically for the removal of contaminants from produced water from oil and gas wells, fracturing flow-back water, and water- or brine-based drilling fluids. The water is treated by contacting the contaminated fluid with ozone after contacting the fluid with a diffused air system to generate small bubbles for entrainment of some contaminants. Thereafter, the water is contacted with an electro-coagulation system in order to remove flocculants and adjust the pH and the total dissolved solids levels of the fluid.

A method and apparatus for treating radioactive waste water containing contaminating ions, colloids and suspended solids having like (usually negative) charges preventing their precipitation. An electric current is passed through the waste water in an EC assembly to cause electro-coagulation of the contaminants and anodes of this assembly are made of a metal that dissolves to provide cations for neutralizing the negative charges and forming precipitates containing neutralized contaminants. Precipitates are then separated from waste water by an electro-magnetic or other filtering unit. The water pH and conductivity may be adjusted before the EC assembly and additives may be introduced into its effluent for enlargement of precipitate particles, improvement of filtration, improvement of dewaterability, and/or enhancement of magnetism.

The invention discloses an air-assisted electro-coagulation algae water separation device and a using method thereof, and belongs to the technical field of sewage treatment. The device comprises a tower, a main shaft, concentric cylinder electrode plates, a mechanical transmission device, a connecting rod mechanism, a floating ball device, an air distributor, a pulse air feeding device and the like. The device takes even pairs of concentric cylinders as cathode and anode for electro-coagulation which are distributed in a staggering way; the surface area of the electrode plate is large, the electro-coagulation efficiency is high, and the adsorption precipitation of microalgae on the surface of the electrode can be effectively prevented. The flowing direction of the liquid in the tower is opposite to the settlement direction of the microalgae so as to form cross flow to enhance the mass transfer and improve the electro-coagulation efficiency. The floating ball device can keep the moving components such as the main shaft in the tower, the concentric cylindrical electrode plates of the cathode and anode and the like in a floating state so as to reduce the running load of a transmission motor. The device of the invention can realize continuous operation of electro-coagulation and air floatation collection of the microalgae; and the basic structure is easy to amplify and implement so as to meet the requirements of large-scale industrial continuous running.

A method and apparatus for treating wastewater is described herein. The present invention combines an electro-coagulation process with a ballasted flocculation process to treat contaminated water or wastewater. More particularly, an electro-coagulation treatment process produces gas, precipitates dissolved contaminants, and/or aggregates suspended solids, while the ballasted flocculation treatment process produces clarified effluent.

The invention discloses a method for removing total phosphor by chemical nickel-plating wastewater treatment. The method comprises the following steps: (1), collecting nickel-containing wastewater (hereinafter referred to as wastewater) to a homogenizing pond, and regulating the pH value of the nickel-containing wastewater to 3-4; (2), carrying out strong-alkalinity anion exchange treatment to the wastewater for complexing and destabilizing the treated wastewater; (3), carrying out strong-acidity cation exchange treatment to the wastewater for recycling nickel; (4), adding oxidant o the wastewater; (5), carrying out catalytic oxidation on the wastewater for oxidizing hypo-phosphorous acid and phosphorous acid to orthophosphoric acid, and degrading macromolecule organic complexing agent to micromolecule, so that the macromolecule organic complexing agent loses complexing capacity; (6), carrying out pulse electro-coagulation treatment on the wastewater for reducing emission concentration of the nickel ion; (7), carrying out solid-liquid separating treatment on the wastewater, regulating the pH value, carrying out flocculation so that suspended matter and sludge agglutinate, and are easy to precipitate and separate, and exhausting the liquid supernatant as required by the standard. The method provided by the invention can treat the nickel-containing wastewater to directly reach the national-level emission standard (the concentration of nickel being lower than 0.1 ppm), further can realize recycling the nickel resources and improve the water-treatment economic benefits.

An electro-coagulation system to convert impurities and dissolved metal contaminants to suspended particles where upon associated dissolved gases help the suspended particles to rise to the surface and facilitate the contaminants to be removed. The system and process, known as Eco-Floc, are used for the treatment of various types of liquid streams by electrolysis for removal of undesirable substances from a treatment stream. The unique features of the electrolysis system permit a continuous cleaning of the electrode plates by moving, non-conductive scrapers located between electrodes in order that the movement of the scrapers can clean each electrode. The system also has full electrical controls to “tune in” power for the removal of specific impurities. The sacrificial anodes are easily replaced. The applications of Eco-Floc anticipate a plethora of applications and adapts well both to existing operations and new installations.

A system for purifying wastewater comprising the reduction of total organic compounds in wastewater is disclosed. Chemical reducing agents are brought into contact with polluted water and through dynamically stable anode induced electro-coagulation and flotation removing natural organic material and biorefractory pollutants, decreasing competing organic matter for a secondary oxidizing step, where acids oxidize the processed wastewater through series of reactor tubes for the reduction of total organic compounds.

In an electrolytic apparatus for removing contaminants from water, a set (110) of spaced apart conductive electrodes (40) in a reaction chamber (54, 112, 114), is arranged in oppositely charged groups of first and second interleaved electrodes with flow paths between them. Non-conductive turbulence inducers (158, 168) on the faces of electrodes (40) are applied to water in the flow paths. One variety is modular elements (1 58) with stepped increases in width to present a narrow leading edge in the direction of flow. Another variety is a continuous set of wave guides (168) bordering the flow path. Electrodes (40) are selectively powered in patterns creating turbulence, with effective patterns including a first and last electrode powering pattern and a mini-cell electrode powering pattern.

The present invention relates to an electronic, integrated, nose and tongue device, which can be stationary or portable (movable) and is designed for real-time monitoring and analyzing information about liquid substances of any kind, as well as toxic, flammable, choking, radioactive and/or polluting gases present in the air or water, which is achieved by the use of artificial intelligence algorithms capable of classifying and training the system so as to recognize the different sign patterns sent by the electronic nose and the electronic tongue. Embodiments described herein can be used in outdoor conditions and complicated areas or connected to water treatment systems, such as those used in electro-coagulation, wherein such a device may be connected to the inlet piping of the treatment systems and can determine how much energy must be used by the electro-coagulators according to the contamination degree of the water.

An induced symbiotic osmosis system and method for treating produced fluids from a hydraulic fracturing process or system for symbiotic fluids fractionation, salinity power generation, brines and salts solution reverse osmosis. The system includes a reverse osmosis membrane assembly to create potable water from produced water. The membrane assembly includes a hollow fiber or flat sheet membrane and headers to transfer desalinated water therefrom. The system can include an electro coagulation system, an ultra or nano filtration system, and a desalter to treat the produced water or brine. A heat exchanger can be positioned between adjacent reverse osmosis membrane assemblies. An osmotic power generation unit can create electrical power by receiving and utilizing produce water and brine water from a brine storage. The system reduces the release of global warming contributing gases associated with hydraulic fracturing, while producing potable water and power.

The invention provides a self-destruction type device for limiting using times and on a disposable electrosurgical pencil. The self-destruction type device for limiting the using times comprises a self-destruction groove (8), an ejector rod (2), a sleeve (7) and a switch (10). The upper end of the ejector rod (2) extends out of the self-destruction groove (8), and the lower end of the ejector rod (2) is inserted into the sleeve (7) in a sliding mode. A spring (9) is arranged in the sleeve (7), and when sliding, the ejector rod (2) compresses the spring (9). The switch (10) is composed of a contact A and a contact B, wherein the bottom end of the ejector rod (2) contacts the contact A, the contact A is connected with a plug pin (1) of a plug (12) in a conducting mode through a connecting wire, a connecting wire of the contact B is used as a power connecting wire, and connecting wires of the other two plug pins are respectively used as an electro-coagulation connecting wire (4) and an electro-scission connecting wire (5). The self-destruction groove (8) is sealed through a self-destruction partition piece (11), and the ejector rod (2) enables the self-destruction partition piece (11) to break under the action of pressure. The self-destruction type device for limiting the using times and on the disposable electrosurgical pencil ensures that the disposable electrosurgical pencil is in the real sense of 'being disposable' under the condition that the using habit of a doctor is not changed, and therefore safety of a patient is protected.

The invention provides a pipeline type high wind speed double charged area electro coagulation device, which is characterized by comprising a hollow shell, wherein the two ends of the hollow shell are respectively provided with an inlet and an outlet, the inner portion of the hollow shell is orderly provided with a negative corona area, a positive corona area and an electric coagulation area from the inlet direction to the outlet direction, and the negative corona area and the positive corona area comprise electrode plates, and the rear portions of the electrode plates are provided with auxiliary electrodes. Compared with the prior art, the pipeline type high wind speed double charged area electro coagulation device has the advantages of low cost, less occupied area, high collection efficiency and low dust emission concentration.

The existing endoscopic surgical instruments mainly comprise a pneumoperitoneum needle, an elastic separating plier, a trocar, a conversion cap, a grabbing nipper, a needle holder, an electro-coagulation hook, an applicator, a scissor, a snare, a linear cutter anastomat, a repairing stapling device, a retractor, sample bags and pull hooks, and the like. Because of the material and structural design factors, the surgical instruments are unitary in function, the instruments are in the needs to be constantly replaced in the use process so that the multiple separation actions of cutting, grabbing, pulling, and the like are completed, the process brings inconvenience for patients and lengthens the operating time. In order to solve the problems that in the prior art the endoscopic surgical instruments are complex in structure, the integrated structure is high in production and use cost, the function is unitary, the tissues are easily damaged, the criteria of human engineering is not met, the surgical operations are affected and the like, the invention provides a medical surgical instrument, the instrument comprises a handle, a rotating fixture, a push pipe and a connecting rod; the handle is a molding structure overall, or after the subsections are formed, the subsections are connected into a whole structure, the whole structure includes a cross arm and a vertical arm.

A water treatment device including an electro-coagulation (EC) unit for treating a stream of feed water to produce a stream of EC treated water of lower salinity than the stream of feed water, an electrical separation unit for treating the stream of EC treated water to obtain a stream of product water of lower salinity than the EC treated water, and a precipitation unit for providing a stream of wash water to wash the electrical separation unit and become a stream of reject water flowing back to the precipitation unit, wherein precipitation in the precipitation unit produces the stream of wash water of lower salinity than the stream of reject water.

The invention relates to the technical field of sewage treatment, and in particular relates to a process for treating and recycling printing and dyeing wastewater by virtue of electro-coagulation. According to the process, an electromechanical technology is merged with a conventional chemical precipitation technology, the deep removal of ions is realized under the action of a direct-current electric field, a polar plate is used for continuously reacting with current, electron transfer is generated between a cathode and anode of an electrolytic bed to induce an electrochemical reaction, and meanwhile water is subjected to oxygen discharge at the anode to generate an oxidization reaction so as to oxidize inorganic and organic substances in the water, and cathode ions are electrified to form nascent hydrogen which has the strongest reducing power. Therefore, dissolved salts, colloids, microorganisms and organic substances in the water can be effectively removed, coagulating sedimentation between iron ions and metal ions in the water is generated, an additional chemical is not needed, and a flocculant is produced.

The invention discloses a method for treating 6-nitrate wastewater by the aid of electrolysis joint processes. The method includes regulating a pH (potential of hydrogen) value of the 6-nitrate wastewater until the pH value is 6-7; adding polyaluminum chloride and hexadecyl trimethyl ammonium bromide into the 6-nitrate wastewater treating and filtering the 6-nitrate wastewater; further carrying out electro-catalytic oxidation treatment; carrying out joint electro-coagulation and peroxymonosulfate (potassium peroxymonosulfate sulfate) treatment. The method has the advantages that the CODcr (chemical oxygen demand) value of the 6-nitrate wastewater treated by the aid of the method can be reduced from the original 18873 mg/L and reaches 297 mg/L, the color scale of the 6-nitrate wastewater treated by the aid of the method can be reduced from the original 2600-3000 times and reaches 50 times, and the treatment efficiency can be greatly enhanced.

The present invention discloses a cutting fluid recovery treatment system, which comprises a four-stage treatment system, wherein the four-stage treatment system comprises a first-stage treatment system, a second-stage treatment system, a third-stage treatment system and a fourth-stage treatment system, and the first-stage treatment system, the second-stage treatment system, the third-stage treatment system and the fourth-stage treatment system are sequentially connected through pumps. The cutting fluid recovery treatment method comprises: chip removing and degreasing; MVR demulsification and heat recovery; electro-coagulation oxidation and oil-water separation of concentrated water; and microtubule filtration, reverse osmosis filtration and UV oxidation. With the system and the method of the present invention, the COD in the cutting waste fluid is reduced to less than 100 PPM from the high concentration (the average concentration is 150000 PPM).

The invention discloses an electrocoagulation and enhanced electric bag composite dust collector, which comprises an electrocoagulation combiner and an electric bag composite dust collector; A bipolar charging area with positive and negative alternating electric fields is formed, and a mixed coagulation is set behind the charging area to enhance the coagulation effect of dust particles. The electric bag composite dust collector includes an electric field area and a filter bag area. The electric field area is equipped with a high-voltage discharge line, a dust collecting plate and a vibration device, and the filter bag area is equipped with a filter bag and a pulse jet cleaning device. The invention utilizes the coagulation effect of heteropolar charged dust in the alternating electric field to strengthen the dust removal efficiency and total dust removal efficiency in the electric field area of ​​the electric bag composite dust collector, reduce the growth rate of filter resistance of the filter bag, prolong the injection time and filter bag service life.

The present group of inventions relates to devices for the purification of liquids and can, in particular, be utilised for the purification of drinking water and waste waters, including sea, river, lake and well water, by removing polar and non-polar organic substances, ions of heavy metals, microorganisms and a significant amount of salts. The group of inventions can be used both for the collection and purification of liquid from open sources and non-pressurised vessels, and also for the collection and purification of liquid, particularly drinking water, from domestic drinking water lines. An apparatus for the purification of liquid comprises means for supplying liquid to be purified, an electro-coagulation unit, a hollow-fibre filter with liquid backwash, a reverse osmosis unit, a collecting vessel, a non-return valve and means for drawing off the purified liquid. The hollow-fibre filter is backwashed first with liquid and then with a pressurised mixture of liquid and air, fed from the collecting vessel. While liquid is being pumped from the collecting vessel, atmospheric air is fed into the collecting vessel using the non-return valve. The proposed water purification apparatus makes it possible to extend the service life of the membranes used in the apparatus, and furthermore the system for the purification of liquid permits assembly in the form of a compact apparatus with a weight of a few kilograms, so that it can be carried by hand.

The invention discloses a pair of electro-coagulation forceps with an intra-operative nerve monitoring function. The pair of electro-coagulation forceps comprises metal forceps tips, an upper forceps body, an electro-coagulation forceps plug, a plug base and a lower forceps body, wherein the surface of the upper forceps body and the surface of the lower forceps body are electrically insulated, and the metal forceps tips at the front ends of the upper and lower forceps bodies are not subjected to insulation treatment; the rear ends of the upper and lower forceps bodies are connected with the electro-coagulation forceps plug through the plug base; the pair of electro-coagulation forceps further comprises a monitoring switch and a monitoring plug; the metal forceps tips are electrically connected with the monitoring switch and the monitoring plug, and the monitoring plug is connected with a nerve monitoring host. The electro-coagulation forceps have the tissue excision and coagulatory hemostasis functions of electro-coagulation forceps, can monitor reflex nerves in real time in use, are suitable for surgeries related to nerve monitoring, such as the thyroid surgery, effectively prevent the nerves from being injured in the surgeries, and are good in surgery effect.

The invention relates to a device and a method for treating zinc smelting waste water by using parallelly-connected aluminum electrodes with an electro-coagulation method. The device comprises a neutralizing tank, a peristaltic pump, an electro-coagulation unit base, an electro-coagulation unit, aluminum anodes and corrosion resistant plate cathodes. The left side of the neutralizing tank is connected with a waste water inlet, the upper side of the neutralizing tank is connected with an inlet of the peristaltic pump, and an outlet of the peristaltic pump is connected with an inlet on the left side of the lower side of electro-coagulation unit. Neutralized waste water enters the electro-coagulation unit and is treated by the parallelly-connected aluminum electrodes in the electro-coagulation unit, and a water outlet on the right side of the upper side of the electro-coagulation unit discharges treated water. The method for details is demonstrated in a specification. The device and the method have the advantages of effectively combining the electrochemical technology, the chemical coagulation technology and the electrical floatation technology through the electro-coagulation method, can completely remove heavy metal, and are simple in device, easy and convenient to operate, short in operation period, low in cost and free of large amounts of waste residues.

The present disclosure relates to a method for separation of solid particles from a waterbody. Preferably, the present disclosure relates to a method, wherein a combination of chemicals including coagulant(s) and flocculant(s) are employed for said separation of solid particles, wherein suitable examples of solid particles are living organisms and non-living matter, wherein living organisms include autotrophs such as phototrophs, which are either microscopic or macroscopic in nature (algae). The disclosure thus particularly relates to method of chemical coagulation and flocculation for separating solid particles, preferably either algae or bacteria or both from a waterbody. The present disclosure also provides for an alternate method, wherein the aforesaid method of coagulation and flocculation is combined with electro-coagulation and/or pH modulation strategies for separation of said solid particles in any sequence.