22 results about "Polyferric chloride" patented technology

The invention relates to a steel surface treatment pickling waste liquid recovery treatment method, and belongs to the technical field of steel pickling waste liquid treatment. The method comprises the following steps: adding hydrochloric acid into the pickling waste liquid to adjust the pH value, introducing oxygen and a catalyst, adding a modified adsorbent, stirring, evaporating and concentrating, adding a stabilizer into a concentrated solution, dropwise adding hydrochloric acid to adjust the pH value to generate polyferric chloride colloid, diluting the polyferric chloride colloid, and filtering to remove impurities to obtain a liquid polyferric chloride product. By optimizing oxidation, evaporation concentration and polymerization reaction processes, efficient recovery of waste acid is achieved, high-purity polyferric chloride is prepared, an iron oxide-carbon composite material oxidation catalyst is prepared from ferric salt and graphene, the catalytic efficiency is improved, mesoporous silica is modified by adopting sulfydryl and amino jointly, and high-purity polyferric chloride is obtained. High-selectivity adsorption on heavy metal under the low-pH condition is achieved, the pickling waste liquid generated in the steel surface treatment process is effectively treated, environmental pollution is reduced, polyferric chloride with the high additional value is recycled and generated, and cyclic utilization of resources is achieved.

The invention relates to the technical key word of energy conservation and environmental protection / artificial intelligence (the classification number is G05B19 / 418), belongs to the technical field of intelligent control, and discloses a polyferric chloride intelligent dosing control system and a multi-parameter feedback control method. Parameter data collected in real time are utilized to predict the change trend of water quality parameters, a prediction result is obtained, and the prediction result is used for controlling the intelligent dosing control system and the multi-parameter feedback control method. Then calculating a control parameter corresponding to the optimal PFC dosage according to a prediction result, and accurately controlling the PFC dosage according to the control parameter; after the PFC dosing process is completed, the multi-parameter prediction module is optimized by analyzing the sewage treatment result, and the data acquisition module is corrected, so that the PFC dosing amount in the sewage treatment process is intelligently adjusted and controlled, the sewage treatment effect is ensured, and the sewage treatment cost is reduced.

The invention discloses a thallium-containing wastewater treatment process which comprises the following steps: (1) introducing thallium-containing wastewater into a Fenton oxidation pond, adding a Fenton reagent, adjusting the pH value by using lime milk, carrying out HDS process treatment, and filtering to obtain pretreated thallium-containing wastewater; (2) electrolyzing the pretreated thallium-containing wastewater by adopting a BDD electrolytic bath to obtain electrolyzed thallium-containing wastewater; and (3) mixing the electrolyzed thallium-containing wastewater with polymerization ferric chloride, and treating by adopting an ion exchange system. The treatment process provided by the invention ensures that the thallium concentration in the water body is continuously and stably reduced to an environmental limit value, and meets the emission standard of GB 3095-2012.

The utility model relates to the technical field of environment-friendly resource recycling, in particular to production equipment for producing a polyferric chloride water purifying agent based on circuit plating waste acid, which comprises a temperature control base, a reaction kettle, a collecting and conveying mechanism mounted on the temperature control base, and a stirring mechanism mounted in the reaction kettle, the collecting and conveying mechanism comprises a waste acid collecting tank; the waste acid collecting tank is communicated with the reaction kettle through a conveying pipe; the stirring mechanism comprises a stirring assembly, the stirring assembly comprises a group of rotating discs, an annular track groove is formed in the upper end part of the reaction kettle, a material mixing plate is mounted on a rotating wheel, and when the material mixing plate needs to be maintained, only a driving motor needs to be stopped, and the rotating wheel is taken out from the annular track groove; and then the side frame and the mixing plate are integrally detached from the rotating wheel, so that the mixing plate can be checked, cleaned, repaired or replaced, the maintenance process is greatly simplified through the design, and the maintenance time and the labor cost are reduced.

This invention relates to the field of wastewater treatment technology, specifically disclosing a coagulant for treating low-temperature, low-turbidity water and its preparation method. The coagulant provided by this invention utilizes composite modified polyferric chloride to provide efficient charge neutralization and colloidal destabilization capabilities at low temperatures, polyethyleneimine to enhance the rapid destabilization of colloidal particles with its high cation density, and modified carboxymethyl inulin to exert long-chain adsorption bridging and net-catching sweeping effects. The three work synergistically to achieve rapid destabilization, aggregation, and sedimentation of colloidal particles in low-temperature, low-turbidity water, effectively solving the problems of poor low-temperature activity and low turbidity removal rate of conventional coagulants.

The utility model relates to the technical field of reaction kettles, and provides a reaction kettle for producing polyferric chloride, which comprises a main body and a support column, supporting columns are evenly fixed to the bottom end of the main body, a feeding port is formed in the top end of the main body, and a stirring structure is installed in the middle of the top end of the main body. According to the device disclosed by the utility model, the filter structure is arranged, so that the device can conveniently filter an incompletely reacted iron raw material through the filter plate, the filter plate is blocked and positioned through the baffle plate when in the sliding chute, and the baffle plate is positioned through a clamping structure formed by a clamping hole and a clamping rod; furthermore, a clamping rod is conveniently pulled to be away from the interior of a clamping hole, so that positioning is relieved, a baffle is conveniently rotated, a filter plate is conveniently pulled out to clean the iron raw material which is not completely reacted, and the purpose of conveniently filtering and cleaning the raw material which is not completely reacted is achieved.

The invention provides a conditioner for deep dehydration of sludge as well as a preparation method and application of the conditioner, and belongs to the technical field of sludge treatment. The conditioner for deep dehydration of the sludge, provided by the invention, is prepared from the following components in parts by mass: 5 to 10 parts of persulfate, 23 to 35 parts of composite flocculant, 3 to 12 parts of activated carbon, 7 to 16 parts of poly dimethyl diallyl ammonium chloride, 4 to 11 parts of bentonite, 12 to 23 parts of zeolite and 5 to 8 parts of fiber, the composite flocculant comprises polyaluminum chloride and polyferric chloride. Results of the embodiment show that after the conditioner for deep dehydration of the sludge provided by the invention is used for dehydrating the sludge, when the addition amount of the conditioner for deep dehydration of the sludge is 1-8%, the moisture content of the sludge can be reduced to 45.8% at most, and meanwhile, the peculiar smell can be reduced.

The utility model discloses a polyferric chloride liquid quantitative filling device, which relates to the technical field of polyferric chloride filling and comprises a support, a conveyor belt is mounted at the upper end of the support, and a controller and a liquid storage tank are mounted on one side of the support. Liquid in the liquid storage box is conveyed into the filling head through a pump and a pipeline, the filling head is installed on the liquid inlet box, an electromagnetic valve and a flow meter are installed on the filling head, a second air cylinder installed at the upper end of the liquid storage box is connected with the upper end of the liquid inlet box, two sets of circular plates are arranged on the filling head, and the circular plates are used for fixing bottles and preventing the liquid from splashing out. An anti-dripping assembly is installed on one side of the conveying belt. The height-adjustable double-circular-plate structure is arranged on the filling head, stable limiting and splash-proof protection of a bottle are achieved through contact between the double-circular-plate structure and a bottle opening, height adjustment and convenient disassembly and assembly are achieved through the sliding connection assembly, and safety, cleanliness and equipment applicability in the filling process are improved.

The utility model relates to the technical field of polyferric chloride production, and discloses a stirring device for polyferric chloride production, which comprises a base, a stirring tank and a mounting mechanism, the top end of the base is movably provided with the stirring tank, the top end of the stirring tank is provided with the mounting mechanism, and the top end of the base is fixedly provided with an auxiliary mechanism; the mounting mechanism comprises a cover plate, a stirring motor, a stirring rod, a connecting frame, a connecting plate, a gear motor I and a ceramic coating, the cover plate is arranged at the top end of the stirring tank in a threaded manner, the stirring motor is fixedly arranged at the top end of the cover plate, and the output shaft end of the stirring motor extends to the bottom end of the cover plate. According to the stirring device for polyferric chloride production, by arranging the mounting mechanism, the step of manually mounting and dismounting a cover plate of the stirring tank is omitted, the labor amount of workers is reduced, the production efficiency is improved, the service life of the stirring tank is prolonged conveniently through a ceramic coating, materials are not prone to being attached, subsequent cleaning is facilitated, and practicability is improved.

The invention discloses a short-process reverse osmosis pretreatment method for high-salinity and high-hardness mine water. The method comprises the following steps: sequentially adding an alkaline agent and a silicon removal agent into the high-salinity and high-hardness mine water for reaction; the preparation method of the silicon removal agent comprises the following steps: placing porous magnesium oxide in a polyferric chloride solution for vacuum impregnation, separation and gradient drying, then placing the porous magnesium oxide in an AlCl3 solution for impregnation, separation and drying, and calcining to obtain the silicon removal agent. Effluent enters a concentration tank; the outlet water of the concentration tank enters a tubular micro-filtration membrane device to be filtered, and the outlet water is pretreated mine water; sludge discharged by the tubular microfiltration membrane device is dehydrated by the stacked screw machine and then is subjected to low-temperature sludge drying by using non-condensable gas in the evaporative crystallization heating chamber. Magnesium oxide is modified to serve as a silicon removal agent, and a tubular membrane device is used for filtering, so that the hardness and silicon removal effect can be effectively improved, the dosage is reduced, and the technological process is shortened; meanwhile, the sludge is dewatered by adopting a stacked screw machine and a low-temperature drying process, so that the sludge can be greatly reduced.

This invention discloses a polymeric aluminum iron silicate and its preparation method, belonging to the field of water treatment technology. The method utilizes the mother liquor generated during the production of sodium fluorosilicate from fluorine-containing waste acid, comprising the following steps: S1: Adding acid to the mother liquor, stirring to produce a precipitate, filtering, washing, and drying the precipitate to obtain silicic acid, then adding alkali to react with the silicic acid for 1.8-2.2 hours to obtain a sodium silicate solution; S2: Adding an oxidant to steel pickling waste liquid containing ferrous ions and free acid, stirring to obtain polyferric chloride; S3: Mixing the sodium silicate solution obtained in step S1, the polyferric chloride obtained in step S2, polyaluminum chloride, and a stabilizer, and aging to form polymeric aluminum iron silicate. This invention utilizes waste materials, and the resulting polymeric aluminum iron silicate exhibits good stability.

The invention discloses a method for producing polyferric chloride by a microchannel reactor, and belongs to the field of water treatment agent polymerization. The method comprises the following steps: dissolving ferrous chloride, mixing the dissolved ferrous chloride with a catalyst in a premixer, introducing the mixture into a micro-channel reactor to carry out oxidation reaction with oxygen, and then polymerizing and curing to obtain the product. In the process, the gas-liquid ratio is controlled to be 1: 100, the oxidation temperature is 30-60 DEG C, the reaction time is 5-10 minutes, the polymerization temperature is 60-100 DEG C, and the pressure is 0.1-5 MPa. Compared with a traditional gap type reaction kettle process, the problems of long reaction time, low conversion rate and large occupied area of equipment are solved by utilizing the high mass transfer characteristic (the mass transfer coefficient is 3000-9000a / m < 2 >. M <-3 >) of the microchannel reactor, continuous and miniaturized production is realized, the product flocculation effect is good, the treated water is not subjected to color reversion, and high efficiency, environmental protection and economical efficiency are realized.

The invention provides a livestock and poultry manure water treatment method which comprises the following steps: firstly adding a biological coagulant into livestock and poultry manure water, and then adding a modified organic coagulant and an inorganic coagulant. The biological coagulant comprises fermentation liquor of bacillus megatherium and bacillus, the modified organic coagulant is starch modified by 2, 3-glycidyl trimethyl ammonium chloride (GTA), and the inorganic coagulant is any one of polyferric sulfate, polyaluminum chloride, polyaluminum sulfate and polyferric chloride. According to the compound composition, the removal capacity of pollutants is improved, and the removal rates of COD, SS and turbidity can reach 80% or above. In addition, the coagulant is easy to degrade and has no toxic effect on the environment and human health, and the method has important application in pollution treatment and waste resource conversion.

The invention belongs to the technical field of water treatment, and discloses a synergistic composite water treatment flocculant as well as a preparation method and application thereof. The flocculating agent is prepared from polyferric chloride, polyferric sulfate, modified charcoal, polyacrylamide and deionized water, wherein the weight ratio of the polyferric chloride to the polyferric sulfate to the modified charcoal to the polyacrylamide is (15-20): (15-30): (5-10): (0.1-0.5). The flocculant obtained by the invention can realize efficient cooperative treatment on complex wastewater with high turbidity, high phosphorus / heavy metals and organic matters, and has the advantages of firm floc and high settling velocity, so that the treatment efficiency can be obviously improved, and the subsequent filtering load can be reduced. The method is suitable for complex water bodies and advanced treatment links with high requirements, has high treatment efficiency and stability, and shows high use value and popularization potential.

The invention discloses a kind of polyferric chloride efficient water purifier and its production process and application, belong to the field of water purifier technology, the polyferric chloride efficient water purifier is a polymer inclusion structure;Polyferric chloride efficient water purifier includes polyferric chloride and the β-cyclodextrin polymer matrix of load polyferric chloride.By β-cyclodextrin polymer matrix carrier loading, the stability of polyferric chloride can be effectively improved, polymer inclusion structure can integrate the advantages of polymer matrix and polyferric chloride, not only with good stability and structural adjustability, but also can integrate the advantages of both, improve the treatment capacity to sewage, effectively improve the utilization rate of polyferric chloride.And polypropylene glycol block copolymerization polyethyleneimine can also be compounded in β-cyclodextrin polymer matrix, it is possible to enhance the charge neutralization and adsorption bridging effect of polyferric chloride, chelate the heavy metal ions in sewage, so as to improve water purification effect and water purification efficiency, obtain efficient water purifier.

This application relates to a flotation separation method for refractory mixed lead-zinc ores. The method includes: lead-preferential flotation, lead-zinc mixed flotation, lead-zinc separate flotation, and zinc flotation. During the lead-zinc separate flotation, a novel sphalerite depressant composed of zinc sulfate, sodium cyanurate, thiourea, polyferric chloride, and sodium carbonate is added. Using the scheme provided in this application, lead and zinc concentrates can be produced separately, achieving efficient recovery of dense disseminated and fine-veined, complex, and refractory mixed lead-zinc ores, and has broad prospects for industrial application.

This application belongs to the field of hydrometallurgical technology, specifically relating to a method for synergistic treatment of high-phosphorus cobalt chloride solution based on polyferric chloride and cobalt carbonate, comprising the following steps: S1, obtaining a high-phosphorus cobalt chloride solution, polyferric chloride, and cobalt carbonate; adding the polyferric chloride to the high-phosphorus cobalt chloride solution and mixing to obtain a first mixture; S2, adding the cobalt carbonate to the first mixture and mixing to obtain a second mixture, the pH of the second mixture being 4.1-4.5; S3, stirring the second mixture and performing solid-liquid separation to obtain a low-phosphorus cobalt chloride solution and ferric phosphate slag. This application achieves the dual objectives of efficient separation of phosphorus and cobalt and resource utilization of phosphorus and cobalt through the synergistic treatment of high-phosphorus cobalt chloride solution by polyferric chloride and cobalt carbonate.

The invention provides a pretreatment agent before wastewater enters an evaporator and a preparation method of the pretreatment agent. The pretreatment agent comprises the following components: 10-15 parts of activated carbon; 15 to 20 parts of polymerization ferric chloride; 5 to 10 parts of magnesium chloride; 5 to 10 parts of poly (dimethyl diallyl ammonium chloride); 5 to 10 parts of potassium ferrate; 6 to 8 parts of chitosan; 20-25 parts of a fruit and vegetable waste comprehensive extract solution; the fruit and vegetable waste comprehensive extract solution is prepared from the tea waste, the apple peel waste and the grape seed waste, the tea waste, the apple peel waste and the grape seed waste are urban waste and are easy to obtain, the cost does not need to be increased, meanwhile, the waste is recycled, and the treatment pressure of the urban waste is relieved.

The present invention relates to a method for advanced treatment of high-concentration refractory organic wastewater. The method includes injecting the to-be-treated high-concentration refractory organic wastewater into a coagulation sedimentation tank, adding polyferric chloride and PAM, and then adjusting the pH to 9-10 with an alkali for flocculation sedimentation to remove fine suspended solids and calcium, magnesium and iron ions in the wastewater; mixing the supernatant with ozone water and discharging it into a contact oxidation tank, using a heterogeneous ozone catalyst in the contact oxidation tank for catalytic oxidation to remove COD and ammonia nitrogen pollutants, so that the sewage meets the discharge standard and a part of the qualified sewage is discharged; the remaining qualified sewage sequentially enters two-stage DTRO treatment units, the concentrated liquid generated by each stage of DTRO is discharged into the coagulation sedimentation tank, and the permeate passing through the two-stage DTRO treatment units enters an electrolytic cell; after the permeate enters the electrolytic cell, ozone is electrolyzed to form ozone water with a concentration of 18%-20% and discharged into the contact oxidation tank; the electrolytic cell consists of an anode chamber, a cathode chamber and a PEM membrane, and the anode electrode in the anode chamber is a nano-coated electrode.

The invention relates to the field of sewage treatment, in particular to a beneficiation wastewater treatment flocculant which is prepared by the following steps: dispersing nano magnetic particles in water, adding polyferric chloride, disodium phosphate and calcium carbonate powder in a stirring state, adjusting the pH value of a system to 7.5-8, reacting for 2-3 hours, magnetically separating and collecting particles, washing and drying to obtain first particles; mixing the first particles, a porous carrier and polyethylene glycol, then adding cationic polyacrylamide, and carrying out dry granulation and drying to obtain second particles; and mixing the charcoal powder with the second particles, adding dilute silica sol, stirring to be pasty, uniformly kneading, drying, curing and grinding to obtain the flocculating agent. By preparing a magnetic core and then introducing a porous carrier, internal nuclear magnetic recovery, middle-layer strong flocculation adsorption and outer-layer broad-spectrum adsorption are formed, the structure is firm, and the magnetic core is suitable for treating mineral processing wastewater with complex components and coexistence of suspended solids and heavy metals and can be recycled.

The utility model discloses a polyferric chloride production filtering device, which comprises a cylinder body, a top cover and a filtering basket arranged in the cylinder body, the top of the cylinder body is fixedly provided with a circular ring plate, the top of the filtering basket is fixedly provided with an inclined ring, the front and back of the cylinder body are both provided with lifting mechanisms, and the lifting mechanisms are arranged on the top of the cylinder body. The lifting mechanism comprises lifting pieces and connecting pieces, the lifting pieces are located on the front face and the back face of the barrel body, and the connecting pieces are located between the lifting pieces and the inclined rings; through the designed lifting mechanism, the hydraulic rod is conveniently started when impurities and particles in the filter basket need to be cleaned in the use process, the top cover can be upwards moved to be opened at the moment, then the filter basket is driven to upwards move to be separated from the interior of the barrel body, the T-shaped screw rod is taken out, and the filter basket is moved towards the outer side at the moment; and then impurities and particles in the filter basket are poured out for cleaning, so that the cleaning progress is accelerated, and the tiredness of personnel operation is reduced.

The invention provides an ionic liquid-assisted high-purity polyferric chloride synthesis method, which relates to the technical field of polyferric chloride, and comprises the following steps: preparing raw materials, dissolving and mixing, controlling the reaction temperature and the stirring speed, promoting the polymerization reaction, adding water, adjusting the pH value, cooling and adding a precipitator. According to the method, the purity and the consistency of the polyferric chloride can be remarkably improved, the generation of byproducts is reduced, the post-treatment steps are simplified, the production cost is reduced, and meanwhile, the environmental protection requirements of green chemistry are met. The ionic liquid assisted synthesis method effectively solves the problems of low purity and consistency in the traditional method, and has a remarkable industrial application prospect.