173results about How to "Reduce drug consumption" patented technology

A method for controlling the automatic chemical dosing of a high-turbidity water system trains a back propagation (BP) neural network according to the operation parameters of the flow, turbidity, temperature and pH value of historic source water, the outlet water turbidity of a sedimentation tank and the like, so that a neural network model is obtained, the parameters are then used as the input parameters of the BP neural network, an internal optimization algorithm of the BP neural network is utilized to obtain an output for guiding and controlling the chemical dosing amount, an internal model proportion integration differentiation (PID) algorithm is used to adjust the chemical dosing amount according to the turbidity of the sedimentation outlet water in real time, a flowmeter and a liquid level meter are utilized to accurately control the dosage concentration, the addition flow is calculated according to the dosage concentration and addition dose, PID control is carried out to regulate valve opening or dosing pump frequency according to the flow, and thus, the dosing flow is controlled. According to the method, the dose can be adjusted quickly according to the water source variation, the outlet water turbidity of the sedimentation tank can also be tracked automatically to appropriately correct, thus, the outlet water turbidity index of the sedimentation tank meets technological requirements, and the medicine consumption is also saved.

The invention aims at providing an advanced oxidation treatment device and an advanced oxidation treatment process of refractory organic wastewater, which are low in energy consumption, rapid in reaction speed, high in pollutant removal rate and low in operation cost. The device comprises a Fenton oxidizing tower, an oxidant feeding system and a catalyst feeding system, the Fenton oxidizing tower is a main device of the advanced oxidation treatment device, and the oxidant feeding system and the catalyst feeding system are respectively connected with multifunctional ejectors on two water inlet pipes of the Fenton oxidizing tower. The advanced oxidation treatment device and the advanced oxidation treatment process can treat refractory substances thoroughly, and chemical oxygen demand (COD) concentration of outlet water can reach below 50mg/L stably.

The present invention discloses the real-time optimized control method of intelligent monitoring and coagulating agent throwing in water treatment. The intelligent monitoring and controlling method of coagulation process based on multisource information fusion technology consists of the following steps: obtaining water quality parameter signals I1-I5 with turbidity sensor, pH sensor, conductivity sensor, temperature sensor and flow rate sensor; inputting I1-I5 to time-space fusion system in fuzzy nerve network algorithm and outputting the result to comparator; calculating in the controller of single factor intelligent coagulation controlling system, feeding the coagulating agent throwing amount to the throwing pump, and feeding the current coagulation reaction degree value with the single factor detecting instrument to the comparator; and monitoring intelligently the water quality parameters and variations for comprehensive high quality control of the coagulation process.

The present invention relates to a coagulation dispensing control method and system based on an artificial neural network algorithm. The method comprises the following steps: S1, building a nerve network; S2, performing coagulation dispensing sample obtaining and pretreatment, and obtaining a sample value; S3, initializing a nerve network weight, and inputting the sample value at a nerve network model; S4, calculating an input layer, a hidden layer, an output layer and a carrying layer number value; S5, calculating the function error of the nerve network and updating the nerve network weight, performing training of the nerve network, and completing the study of the nerve network; and S6, determining whether the updated weight satisfies the setting precision or the number of times of training or not, and performing the predication of the real quantity of reagent. The automation of the coagulation dispensing technology and the online monitoring of the production operation parameters are realized, and the coagulation dispensing control method and system based on the artificial neural network algorithm provides the guarantee for the safe production of a water plant and reach the purpose of saving the medicine consumption, decreasing the manpower and reducing the labor intensity of operators.

The invention provides cassiterite flotation agent composition. The cassiterite flotation agent composition comprises a collecting agent, a combined inhibitor and an optical auxiliary collecting agent, wherein the collecting agent comprises the following ingredients in percentage by weight: 30wt%-50wt% of styryl phosphoric acid, 20wt%-30wt% of aliphatic phosphoric acid (preferably selecting C6-C8 aliphatic series), 10wt%-20wt% of alkyl sulfonated succinic acid and 10wt%-20wt% of alkyl hydroximic acid. The cassiterite flotation agent composition provided by the invention is soluble under normal temperature, non-toxic and tasteless, good in dispersibility, efficient and environment-friendly and good in return water utilizability; mineral processing index of cassiterite flotation can be increased, the agent consumption can be reduced, the agent cost is reduced, and particularly for mineral processing on fine particle cassiterite, a unique effect is obtained; the loss of intermediate products during a tin rough concentrate recycling process is avoided; the industrial application processing capacity can be up to 50-60 tonnage/day, and more preferably, the industrial application processing capacity can be up to 80 tonnage/day; when the flotation ore feeding tin grade is 0.70%-0.80%, good technical indexes of 6%-10% of tin flotation concentrate grade and 60%-70% of operation recovery rate is obtained by agents; the dosage of the agents is greatly reduced.

The invention relates to a precise control method of sewage treatment plant aeration total quantity. The method includes: a water inlet COD instrument, a water inlet ammonia nitrogen online monitor, a water inlet flowmeter, a dissolved oxygen online monitor, a water outlet ammonia nitrogen online monitor, a central PLC and a plurality of blowers are disposed, the water inlet COD instrument, the water inlet ammonia nitrogen online monitor, the water inlet flowmeter and the dissolved oxygen online monitor are parallelly connected with the water outlet ammonia nitrogen online monitor and then connected with the central PLC, and the central PLC is connected with the blowers; the central PLC respectively collects four kinds of variable signals of water outlet ammonia nitrogen, DO values, water inlet COD and ammonia nitrogen, and water inlet quantity, the four kinds of variable signals are different in significance and are associated, the various signals have independent adjusting periods, and a precise control system using the central PLC to control and adjust the total air quantity of the blowers is formed. The method has the advantages that aeration quantity is saved, influence of the faults or measuring errors of a single instrument to a system judging result is weakened greatly, and stable operation of the whole system is guaranteed.

The invention relates to water treatment compound coagulant and a compound flocculation method thereof. The compositions and the content of the water treatment compound coagulant are: 1 to 3 shares of PAFC, 1 to 6 shares of FeCl3, and 0 to 0.3 milligrams of HCA per liter of water. The compound flocculation method of the water treatment compound coagulant follows the following steps: under quickly stirring in 150 to 300 revolutions per minute, 1) firstly the inorganic macromolecule coagulant PAFC is added; 2) after 5 seconds to 20 seconds, and then the organic coagulant FeCl3 is added; 3) after continuously quick stirring for 30 seconds to 60 seconds, and then cation macromolecule coagulant aid HCA is added; and 4) after still quick stirring for 60 seconds to 90 seconds, and then slowly stirring in 30 to 50 revolutions per minute, and stopping after 10 to 20 minutes to settle the flocculation. The compound enhanced flocculation proposal of the invention not only solves the problem of the former traditional technology that water has large chrominance and high residue turbidity after adding iron salt, but also improves the defects of light alum and slow settling after singly adding PAFC.

The invention discloses a method for degrading organic pollutant in water through activated persulfate. The method comprises the steps that 1, an alkali medicament solution is prepared to be used as a solution A; 2, a divalent metal salt and trivalent metal salt mixed solution B is prepared according a certain proportion; 3, the alkali medicament solution A is added into the solution B, and stirring is performed continuously for 30-120 min to obtain a composite solution; 4, the composite solution is heated, the temperature of 50-80 DEG C is kept constant, standing is performed for 4-24 h, and the composite solution is taken out after being cooled to obtain an emulsion C; 5, the cooled emulsion C is added into a water sample to be processed, and a persulfate solution of the certain mass concentration is added, stirring is performed for a reaction, the persulfate is activated by the emulsion to degrade organic matter in the water sample to be processed to be converted into sulfate ions which are absorbed by emulsion particles, the organic matter is degraded and secondary pollution is eliminated. According to the method, after being used for activating the persulfate, the emulsion finally forms metal hydroxide precipitates, adverse effects are generated for follow-up processes, and the method is applied to processing printing and dyeing wastewater with 10 mg/L rhodamine and has the high removal rate.

The invention discloses a treatment method and a treatment system for desulfurization wastewater, belonging to the field of industrial wastewater treatment. The method comprises the following steps: (1) subjecting desulfurization wastewater to softening pretreatment so as to obtain softened effluent and sludge; (2) with the softened effluent as inlet water for nanofiltration, carrying out nanofiltration and separation so as to obtain nanofiltration produced water rich in monovalent salts and nanofiltration concentrated water in which divalent salts are concentrated, and subjecting the nanofiltration concentrated water to normal-temperature crystallization treatment so as to obtain the divalent salts and crystallized effluent; (3) subjecting the nanofiltration produced water to reverse osmosis and electrodialysis coupled treatment so as to obtain electrodialyzed concentrated water and reverse osmosis produced water; and (4) subjecting the electrolyzed concentrated water to crystallization and separation so as to obtain the monovalent salts. The method of the invention is greatly reduced in chemical consumption, substantially saves cost, realizes the separation of the salts and the resourceful utilization of hardness in the system, meets the demands of fluctuating water qualities of the desulfurization wastewater, has high water recovery rate, and satisfies the requirement of zero emission.

The invention discloses a drone spraying planning method. The method comprises the following steps that 1, farmland information and drone spraying operation parameters in a database are stored, and adrone spraying operation area frame is generated; 2, drone spraying operation parameters are set, and a flight waypoint is generated; 3, a return number j is calculated, by arranging supply points andreturn points, a shortest return flight is generated, and spraying operation flights of all operation sorties of a drone are calculated; 4, an effective load algorithm is adopted for planning an operation load of the single operation sortie of the drone, and the optimal operation load of the single operation sortie is obtained; 5, the real-time residual capacity of the drone is obtained, the capacity needed by the next operation sortie of the drone is pre-judged, and by comparing the real-time residual capacity with the capacity needed by the next operation sortie, early warning is conductedon drone departure. According to the drone spraying planning method, not only can loss of ineffective energy consumption of the drone be lowered, but also the safety of drone spraying operation is ensured.

The invention discloses an intelligent flocculant decision-making system which is applied to a water purification subsystem of a water supply system of a water plant and specifically comprises a waterquality acquisition module, a feedforward control module, an image acquisition module and a feedback control module. According to the technical scheme, the feeding amount of the flocculant can be flexibly adjusted at the beginning and midway of flocculant feeding according to the water quality of the raw water and the water body sedimentation change of the flocculating sedimentation tank; reasonable addition of the flocculant is intelligently and autonomously guided and controlled, and then the purposes of helping a water plant to save medicine consumption, accelerating the automation processof the water plant and improving refined management are achieved.

The invention discloses a water treatment method for simultaneously eliminating dissolved organic matters and ammonia nitrogen, relates to a water treatment method, and aims at solving the problem that dissolved organic matters and ammonia nitrogen cannot be simultaneously eliminated by using a water treatment method. The water treatment method comprises the following steps of: adding an oxidant into a water sample to be treated, and subsequently carrying out ultraviolet irradiation, and reacting for 2-60min so as to accomplish the water treatment method for simultaneously eliminating the dissolved organic matters and the ammonia nitrogen, wherein the oxidant is hypochlorous acid or sodium hypochlorite, and the addition amount is on the basis that the mass ratio of the chlorine element to the nitrogen element in the water sample to be treated is (0.5-6):1. According to the water treatment method, photocatalysis is coupled with an oxychlorination technique, so that the treatment performance on a composite polluted water body is enhanced, and the dissolved organic matters and the ammonia nitrogen in water are effectively and simultaneously eliminated. The water treatment method is applied to the field of water treatment.

The invention provides a small sewage treatment hydrolysis and gas-stripping and precipitation technique method which comprises the following steps of: underground sewage, integrated anaerobic hydrolysis acidifying adjustment lift pump pond, integrated sewage treatment pond for Z type gas-stripping reflux two-stage precipitation, and up-to-standard emission. The anaerobic hydrolysis acidifying adjustment lift pump pond is adopted to replace various conventional and non-conventional comprehensive pretreatment procedures, the integrated sewage treatment pond for Z type gas-stripping reflux two-stage precipitation is adopted to replace procedures of a fine-rack girt chamber, an A/O biochemical reaction basin, a nitration liquid internal-reflux pump basin, a secondary precipitation basin, a sludge internal-reflux pump basin, a sludge external-reflux pump basin, a coagulation-flocculation reaction basin and an inclined-tube precipitation basin, a contact sterilization basin and the like in an A/O activated sludge method. The method has the advantages of being small in occupied space, less in investment and medicine consumption and sludge discharge, low in energy consumption and cost, stable and controllable in water quality, simple and convenient to run and manage, especially suitable for high-efficiency and compact treatment of nitrogen and phosphorus removal of sewage of ten thousand tonnage/per day and below.

The invention discloses a single-effect multi-chamber mechanical compression evaporation device for processing high-salinity/high-organic-substance-content wastewater. The device has advantages of less scale formation, long effective operational cycle, low cleaning frequency and low chemical consumption for cleaning. The device comprises a mechanical vapor compressor, a mixing chamber, a circulating pump, a distilled water tank, a main evaporation body and a thermal scale inhibition system. The main evaporation body is divided into more than two evaporating chambers. Each-stage evaporation system comprises an evaporating chamber, a mixing chamber, a spray system, a heat exchanger bundle, a concentrate pump and a thermal scale inhibition system. All the evaporating chambers share one steam collecting chamber, the mechanical vapor compressor, the heat exchanger bundle and the distilled water tank. high-salinity/high-organic-substance-content wastewater is heated by a distilled water heat exchanger and the heated wastewater enters the mixing chamber of the first-stage evaporation system; a concentrated solution of each evaporation system undergoes scale inhibition through the thermal scale inhibition system and then enters the mixing chamber of the next-stage evaporation system; and a concentrated solution of the last-stage evaporation system is discharged. The invention also discloses a method for processing high-salinity/high-organic-substance-content wastewater by the utilization of the above device. The method has low operation cost and has a good application prospect.

The invention provides a beneficiation and desiliconizing method of bauxite, comprising the following steps: firstly, coarse ore grains are milled and subjected to the flotation process, thus causing siliceous mineral to be disintegrated and removed; and secondly, tailing is removed in the cyclic processes of both rough scavenging and concentration, thus being capable of removing siliceous slurry in flow process in time, solving the problem that the slurry severely interferes the flotation process, caused by that accumulation type bauxite can not be removed in common flotation process due to large silt content, ensuring the concentration needed by flotation work, reducing the medicine consumption caused by the slurry absorbing medicine as the slurry can not be removed in time and improving the silicon aluminum separation selectivity. For ores with different silicon aluminum ratios, namely, crude ore silicon aluminum ratio between 2.5 and 8.6, the concentrate silicon aluminum ratio and the Al2O3 recovery rate index are both higher than washed ore desiliconizing index. The obtained concentrate product can be used for producing alumina.

The invention relates to a method for purifying low-temperature low-turbidity seawater by magnetic-sand-loaded flocculation, which comprises the following steps: (1) mixing stage: a coagulating agent FeCl3 is added into seawater entering a mixing basin, and quick stirring is performed at the velocity gradient G of 620-700 s<-1> for 1-2 minutes; (2) flocculation stage: the seawater containing the coagulating agent FeCl3 enters a flocculation basin, and magnetic sand is added into the flocculation basin to perform loaded flocculation; and (3) precipitation stage: the flocculated seawater containing magnetic sand enters a precipitating basin to precipitate, effluent water is collected from the purified seawater, the magnetic-sand-loaded flocculating constituent precipitates to the basin bottom, sludge on the basin bottom is sucked by a sand pump into a hydrocyclone, the magnetic sand with higher specific gravity slides down along the hydroclone wall and reenters the flocculation basin via a connecting pipe, and the sludge with lower specific gravity is discharged along with the water flow, thereby separating the flocculating constituent from the magnetic sand. The magnetic-sand-loaded flocculation technique is utilized to increase the condensation cores, and the adsorption actions of the static electricity and magnetic field are utilized to form the compact composite magnetic flocculating constituent, thereby improving the flocculation effect of the low-temperature low-turbidity seawater.

The invention discloses a high-intensity active carbon sedimentation basin. The sedimentation process thereof is characterized by comprising the following steps: reflowing the enriched sludge and the active carbon to a mixing basin by using the concentrating and separating effects of the sedimentation process and the active carbon on the turbidity materials, and obtaining the mixed liquid of which the concentrations of the sludge and the active carbon particles are high; and strengthening the removal of the turbidity materials and the organics in water by the capturing and adsorbing effects of the two carriers. According to the invention, the defect of the original conventional treating process that the utilization ratio of the added active carbon is low is overcome, and relatively stronger removal ability for stink smell, chroma and organics is provided for the conventional sedimentation process. The high-intensity active carbon sedimentation basin has the characteristics of good water quality, small drug consumption, high solid content of sludge, small occupation area, flexible operation control and strong adaptation ability on raw water quality. The sedimentation basin is developed based on the III-type raw water or raw water higher than III type, and has double functions of conventional treatment and deep treatment; and a completely new path to treat the serious raw water is provided. The sedimentation basin can be applied to the conventional treatment process or combined with the deep processing process when the quality of the raw water is poor.

The invention relates to a device for achieving anaerobic ammonia oxidation and denitrification of continuous flow municipal sewage and an application method thereof, and belongs to the technical field of sewage disposal. The device primarily comprises four parts: a municipal sewage primary settling tank, a continuous flow A/O dephosphorization and decarburization device, a continuous flow SPN/A autotrophic nitrogen removal device and a side inhibiting system. According to the application method, the continuous flow SPN/A autotrophic nitrogen removal device is established in IFAS; partial nitrification floc sludge is separated from an anaerobic ammonia oxidation biological film in space; the municipal sewage of which COD and PO4<3->-P are removed by continuous flow A/O dephosphorization and decarburization device flows into the continuous flow SPN/A autotrophic nitrogen removal device for a denitrification reaction; and floc sludge is separated independently and transferred to the sideinhibiting system for side treatment, wherein NOB in the floc sludge is inhibited by an NOB inhibitor effectively, and meanwhile, anaerobic ammonium oxidation bacteria on a biological film are also prevented from being affected. The inhibited floc sludge returns to the continuous flow SPN/A autotrophic nitrogen removal device, so that long-term stable and effective integrated partial nitrification-anaerobic ammonia oxidation autotrophic nitrogen removal of the municipal sewage can be carried out in the device.

The invention discloses an online visual flotation system detector for flotation dosing control. The online visual flotation system detector for flotation dosing control includes a square closed frame, a tailings collecting pump, a tailings slurry processing device, a fan, an adjustable light source, an operating condition monitoring probe, a control cabinet, a humidity sensor, an image acquisition and transmission device, a light-sensation sensor and a flotation foam detection device, wherein the flotation foam detection device includes a foam status detection camera, a flotation cell, a foamstatus detection fixation bracket and a lighting lamp. Online visual inspection is added to an existing flotation dosing system of a coal washing plant so that a complete closed-loop automatic control system with feed forward and result feedback is formed by the entire system, stable operation is achieved in the flotation production process at an almost ideal dosing state, and influences, causedby excessive or insufficient dosing, on the flotation effect are prevented; and through application of the online visual flotation system detector, the flotation recovery rate is improved, chemical consumption is reduced, economic benefits are improved, and unattended flotation is achieved.

Aluminum alloy fluorine-free and COD-free three-in-one plain glass pretreatment drug recovery system, comprises a three-in-one plain glass tank and a non-flow tank subsystem. The non-flow tank subsystem is arranged in reverse series arrangement, a begin end of water flow is provided with a water inlet, a terminal outlet is connected to a water replenishing port of the three-in-one plain glass tank through a one-way valve device. The aluminum alloy fluorine-free and COD-free three-in-one plain glass pretreatment drug recovery system retains and reuses the drug, and reduces the unnecessary waste of the drug.