102 results about "Coking wastewater" patented technology

The invention discloses a biomass-inorganic-organic ternary composite flocculant and a preparation method and application thereof, and belongs to the field of coking wastewater treatment.The preparation method comprises the steps that chitosan serves as a substrate material, glutaraldehyde serves as a cross-linking agent, and polyferric sulfate (PFS) and chitosan are subjected to chemical cross-linking to generate an intermediate product PFS and chitosan composite particles; then potassium persulfate is used as an initiator, graft copolymerization of acrylamide and methacryloyloxyethyl trimethyl ammonium chloride is initiated through hydroxyl on the surface of PFS-chitosan, a cationic branched chain is introduced, and a final product is obtained. Through multi-component cooperation and structural design, the defects that a traditional flocculating agent is not thorough in demulsification, large in sludge amount, unstable in floc combination and the like in coking wastewater treatment are overcome, and the flocculating agent is particularly suitable for treating oil pollutants in coking wastewater.

The utility model provides a coking wastewater outlet device, which relates to the technical field of coking wastewater treatment and comprises a treatment barrel, a fixing ring, supporting legs, a box cover, a partition plate, a filter plate and a flocculant adding component. Liquid flocculants are added into the feeding pipe and enter the storage box, liquid in the storage box is finally discharged into the treatment barrel through the multiple sets of water outlet pipes under the action of the pump body, the motor drives the rotating shaft and the driving wheel to rotate, the driven wheel and the feeding pipe are further driven to rotate, and the liquid flocculants are discharged into the treatment barrel through the multiple sets of water outlet pipes. A plurality of groups of water outlet pipes rotate along with the rotation of the fixed pipe, so that a liquid flocculant is uniformly sprayed out in the treatment barrel, and a scraper plate continuously cleans the outer surface of a filter plate along with the rotation of the fixed pipe, so as to keep the filter plate unobstructed. And the filter screen is not provided with an effective cleaning mechanism, so that the phenomenon of blockage is easily caused.

The invention discloses a method for preparing a porous carbon material by recycling coal gasification slag and semi-coke wastewater, which comprises the following steps: by taking coal gasification fine slag as a carrier and semi-coke wastewater as a phenol source, carrying out flotation-acid leaching modification on the fine slag to purify a carbon-rich component and optimize the surface adsorption activity of the carbon-rich component; then fully adsorbing phenolic substances in the wastewater by utilizing the modified slag body; introducing a composite aldehyde cross-linking agent, and initiating an in-situ phenolic aldehyde polymerization reaction to generate a composite precursor; the precursor is subjected to high-temperature carbonization and alkali activation pore forming, and finally the porous carbon material with the characteristics of high specific surface area, rich graded pores and low ash content is prepared. According to the process, full-amount collaborative recycling of the two wastes is achieved, and the process is green and free of secondary pollution. The obtained material is high in carbon content and rich in defect structure and surface functional groups, shows excellent adsorption capacity and catalytic carrier performance, can be widely applied to the fields of deep purification of water pollutants, adsorption of volatile organic compounds, energy catalysis and the like, and has remarkable environmental protection benefits and resource economic values.

The application relates to a coking wastewater advanced treatment device, which comprises an aerobic tank, a horizontal shaft is arranged in the aerobic tank along the water flow direction, a plurality of coaxial rotating discs are arranged on the shaft at intervals, the rotating disc is hollow, the surface of the rotating disc is hollowed out, and the rotating disc is filled with bacteria culture fillers; a screw rod is arranged at the bottom of the inner side of the aerobic tank, the screw rod is parallel to the shaft, the same side ends of the shaft and the screw rod pass out of the aerobic tank, and the passing-out end of the shaft is in transmission connection with the passing-out end of the screw rod; a sludge discharge pipe is arranged at the bottom of the side wall of the aerobic tank, a vertical scraper is arranged at the bottom of the inner side of the aerobic tank, screw holes are arranged on the scraper, and the screw rod is matched with the screw holes. The bacteria film and the attachments on the surface of the fillers can be stripped through mutual collision and friction between the fillers, so that water flow exchange in and out of the fillers is smoother.

The utility model belongs to the technical field of industrial wastewater treatment, and particularly relates to a coking wastewater treatment system for industrial continuous production. Comprising a decomposition bin which comprises a moisture evaporation bin, an ammonia decomposition bin, a horizontal transmission belt penetrating through the moisture evaporation bin and the ammonia decomposition bin, a sedimentation tank, a filter connected to an outlet of the sedimentation tank, and a buffer bin connected to an outlet of the filter. The coking wastewater generates struvite in the sedimentation tank, redundant water is filtered out in the filter, and the struvite is stored in the surge bin and then sent to the decomposition bin. The ammonia gas enters the water evaporation bin through the horizontal conveying belt to evaporate redundant water, and then is fed into the ammonia gas decomposition bin to be thermally decomposed to release ammonia gas. The buffer bin can enable intermittent work of the filter not to affect continuous production of the system, the decomposition bin can achieve continuous evaporation dehydration and thermal decomposition processes, the wastewater treatment efficiency is improved, meanwhile, struvite decomposition products are reused in wastewater treatment, cyclic utilization of resources is achieved, and the energy consumption is reduced. The method has good economic benefits and environmental benefits.

The utility model relates to the technical field of wastewater treatment, in particular to a high-efficiency defoaming device for coal coking wastewater treatment, and aims to solve the technical problem of poor defoaming effect caused by difficulty in uniformly covering a sedimentation tank with a larger area during feeding. The threaded shaft is in threaded connection with a scraping plate, the scraping plate is slidably connected to the sliding rail, the upper portions of the two sliding ends of the scraping plate are each provided with a corresponding defoaming mechanism, the defoaming mechanisms are connected to the side wall of the sedimentation tank, the defoaming mechanisms can add a defoaming agent to the lower portion, and foam is scraped to the two sides of the sedimentation tank through the scraping plate moving back and forth in the sedimentation tank; the defoaming mechanisms located on the upper portions of the two sides of the sedimentation tank add defoaming agents downwards to eliminate foams, so that all the foams can be covered without even adding, compared with full-tank adding, the agent consumption can be reduced, and the scraper advances on the liquid level of the upper portion of the sedimentation tank, and precipitation on the lower portion cannot be affected.

This invention provides a semi-coke wastewater treatment device and process. The semi-coke wastewater treatment device comprises, in sequence, a semi-coke production wastewater conditioning system, an electrolytic flotation system, a freeze crystallization system, a salt phase conditioning system, a high-temperature wet oxidation system, and an ammonia nitrogen stripping and distillation system. The freeze crystallization system is connected to an aqueous phase conditioning system, a BDD electro-oxidation system, and a biochemical system. The ammonia nitrogen stripping and distillation system is connected to the biochemical system. This invention effectively solves a series of technical problems in existing semi-coke wastewater treatment devices, such as lengthy process flows, high equipment investment and operating energy consumption, and clogging of the ammonia stripping and phenol removal unit due to phenol polymerization and coking, and oil adhesion. This invention also provides a semi-coke wastewater treatment process.

The utility model relates to a catalytic ozonation tower for advanced treatment of coking wastewater, which comprises an upper tower section and a lower tower section, the top of the lower tower section is detachably communicated with the bottom of the upper tower section, a plurality of partition plates are vertically distributed in the lower tower section at intervals, one end of each partition plate is fixedly connected with the inner side wall of the lower tower section, and a gap is reserved between the other end of each partition plate and the inner side wall of the lower tower section. The fixed ends of every two adjacent partition plates are opposite, an ozone channel is arranged in the fixed end of each partition plate, air inlet pipes are arranged on the left outer side and the right outer side of the lower tower section, the two air inlet pipes are communicated through a conveying pipeline, one end of each ozone channel is communicated with the adjacent air inlet pipe through an air inlet branch pipe, and the other end of each ozone channel is communicated with an aeration head fixedly arranged at the bottom of the corresponding partition plate. Two mesh plates are distributed between the aeration head and the free end of the corresponding partition plate, a catalyst is filled between the two mesh plates, and the bottom of the lower tower section corresponding to the fixed end of the lowermost partition plate is communicated with a water inlet pipe. According to the utility model, multiple aeration mixing and catalytic oxidation of wastewater can be realized, and the overall treatment quality is higher.

A phenol extraction system for semi-coke wastewater treatment is characterized in that a solvent conveying header pipe is divided into two paths, one path is connected with a solvent inlet in the lower part of a first extraction tower, and the other path is connected with a solvent inlet in the lower part of a second extraction tower; the upper part of the first extraction tower is connected with a wastewater input pipe and an extract overflow pipe, an extract input port at the lower part of the first extraction tower is connected with an extract output port of an extract tank through an extract conveying pump set, and an extract input port of the extract tank is connected with an extract output port at the upper part of the second extraction tower; a wastewater output port at the bottom of the first extraction tower is connected with an input port of a wastewater conveying pump set I, an output port of the wastewater conveying pump set I is connected with a wastewater inlet at the upper part of the second extraction tower, and a wastewater output port at the bottom of the second extraction tower is connected with an input port of a wastewater conveying pump set II; and an output port of the wastewater conveying pump set II is connected with the extracted wastewater conveying pipe. The device disclosed by the utility model has the advantages of high removal efficiency of phenolic substances and stability in operation.

The invention discloses a coking wastewater treatment method based on gas ratio combined precipitation, which comprises the following steps: adding an acidic reagent and PAM (polyacrylamide) into coking wastewater, and removing small molecular weight toxic substances, specifically thiocyanide and cyanide, and large molecular weight toxic substances, specifically more than ternary phenol and tar in the wastewater through a gas ratio combined precipitation device, the method comprises the following steps: treating the coking wastewater through a GDiAR-F anaerobic reactor, removing three-element or less phenol and macromolecular COD (Chemical Oxygen Demand) through a GDiAR-F anaerobic reactor, removing micromolecular COD, ammonia nitrogen, TN (Total Nitrogen) and TP (Total Phosphorus) in the wastewater through a secondary A / O (Anaerobic / Oxic) device, and finally enabling the effluent to reach the standard, thereby completing the comprehensive and efficient treatment The coking wastewater is treated by adopting a gas ratio combination precipitation device, a GDiAR-F anaerobic reactor and a secondary A / O device, so that the effluent of the coking wastewater is stably discharged in a standard reaching manner. The method does not need to add activated carbon, is simple to operate and low in cost, can greatly reduce the operating cost of each ton of wastewater, and achieves the direct emission standard of Emission Standard of Pollutants in Coking Industry, thereby having wide development potential.

The utility model belongs to the technical field of treatment devices, and particularly relates to a coking wastewater ozone catalytic oxidation advanced treatment device, which comprises a reaction tower, a catalytic oxidation device, a catalytic oxidation device and a catalytic oxidation device, the ozone generator can guide ozone into the cavity; the driving assembly can apply rotating force into the cavity, so that the catalytic ozonation advanced treatment of the coking wastewater is more uniform; and the collecting assembly is coupled with the driving assembly, the collecting assembly is set to rotate along with the driving assembly and collect floating foam in the cavity, the driving piece is started to drive the first rod to rotate, the first rod drives the third rod to rotate, the third rod drives the plate body to rotate, and the plate body drives the collecting protrusion to rotate; at the moment, the collecting protrusions continuously make contact with the floating foam above the liquid level in the cavity, part of the floating foam is collected between the plate body and the collecting protrusions to be stored, and therefore the influence of the floating foam on the interior of the cavity is reduced.

The invention relates to the technical field of waste resource utilization, in particular to an amino capronitrile residue modified titanium silicalite molecular sieve as well as a preparation method and application thereof. The method comprises the following steps: by taking a waste titanium silicalite molecular sieve as an adsorbent, carrying out adsorption treatment on the coking wastewater by adopting the adsorbent, and carrying out primary ball milling and primary drying treatment to obtain a pretreated titanium silicalite molecular sieve; and mixing the pretreated titanium silicalite molecular sieve, the amino-capronitrile residue and an aldehyde compound, and carrying out secondary ball milling and secondary drying treatment to obtain the amino-capronitrile residue modified titanium silicalite molecular sieve. According to the method, the waste titanium silicalite molecular sieves adsorbing the coking wastewater are subjected to surface modification by taking the amino capronitrile residues as a modifier, so that the problems of poor dispersity and poor interfacial compatibility of the waste molecular sieves in a rubber matrix are solved, and the mechanical property of the rubber composite material is also remarkably improved; therefore, the purposes of treating waste with waste and harmlessness and resource utilization of solid waste are achieved.

The invention discloses a collaborative deep purification method and system for phenol-cyanamide in coking wastewater, and belongs to the technical field of industrial wastewater treatment. According to the invention, a quality-based grading and recycling coupled system is adopted, and oil-water separation and soluble tar reduction are simultaneously realized through front-stage pretreatment, so that the subsequent treatment load is effectively reduced; catalytic oxidation and ozone oxidation are synergistically enhanced in the middle section, so that favorable conditions are created for biochemical treatment; the biochemical section is used for constructing a poison-resistant flora and coupling a short-cut nitrification and denitrification or anaerobic ammonia oxidation process to realize low-carbon denitrification; at the tail end, through the synergistic effect of membrane separation and selective adsorption, the water quality of recycled water is guaranteed, and meanwhile resource recycling of ammonia nitrogen is achieved.

The invention discloses a GN (at) Ti / NiO-x00 anode electro-catalytic material and a preparation method of the GN (at) Ti / NiO-x00 anode electro-catalytic material. The method comprises the following steps: electroplating nickel on the surface of a titanium substrate to form a nickel intermediate layer, annealing to change the surface crystal form structure and refine intermediate layer grains, and carrying out high temperature and hydrogen catalytic reduction on acetylene gas on the surface of the nickel intermediate layer of the titanium substrate to form a graphene active layer on the surface through chemical vapor deposition. The nickel-plated graphene doped titanium substrate non-noble metal electrode, namely the GNatTi / NiO-x00 anode electro-catalytic material, is obtained. The titanium-based electrode plate is subjected to nickel plating and loaded with the graphene layer, so that active sites on the surface of the electrode are increased, the electrocatalytic activity is improved, peeling of the coating is reduced, the efficiency of degrading complex coking wastewater is greatly improved, the electrode has high economic benefits, and compared with a traditional commercial precious metal electrode, the electrode has the advantages that the cost is low, and the application range is wide. The material is a novel composite electrode material with excellent electrochemical performance.

The invention discloses a multi-stage plate-type electro-catalytic membrane reactor for degrading organic matters in reverse osmosis concentrated water of coking wastewater and application of the multi-stage plate-type electro-catalytic membrane reactor. The multi-stage plate-type electro-catalytic membrane reactor is internally provided with a chamber for electrochemical reaction, and consists of a plurality of cathode chambers and anode chambers which are the same in number and are uniformly alternated, a conductive contact pin, a water inlet end and a water outlet end, the distance between every two cavities is 10 mm, the multiple cathode chambers and the multiple anode chambers which are the same in number and are evenly and alternately arranged are detachable plate faces, operation is convenient, and environment friendliness is achieved. The multi-stage plate-type electro-catalytic membrane reactor is simple in design, wastewater runs in the reactor in a circulation mode, mass transfer can be improved, the electrochemical active surface area can be increased, the current utilization efficiency can be improved through a parallel power connection mode, and the service life of the reactor is prolonged. The device has the advantages of high organic matter removal efficiency, convenience in actual operation, automatic management, good stability, low operation energy consumption, reusability and the like, and has research significance in the field of electrochemical water treatment.

The utility model relates to a device for preparing dilute ammonia water and creosote from semi-coke wastewater, and belongs to the field of special equipment for the semi-coke industry. The system comprises a semi-coke wastewater raw water pump, a coalescence separator, a deoiled water storage tank, a deoiled water pump, an alkalization reaction kettle, an alkalized water pump, a rectifying tower, a creosote pump, a compressor, a heat recovery heat exchanger, a main heater, a dilute ammonia water tank and a dilute ammonia water pump. Tar is fully recovered by centrifugal ultrasonic coalescence separation, dilute ammonia water and creosote are separated through alkalization and rectification, and three types of useful products are formed, so that waste is turned into use, and the environmental protection pressure is relieved.

This invention discloses a method for the co-treatment of semi-coke wastewater and medicinal residue, comprising: mixing and soaking the semi-coke wastewater and medicinal residue, and aging the mixture; pressing the aged mixture dry to achieve solid-liquid separation; mixing the separated solids into raw coal for coking; and subjecting the separated liquid to biochemical degradation treatment. This invention solves many problems existing in current semi-coke wastewater treatment methods, opens up broad pathways for the harmless application of medicinal residue, and achieves the effect of treating waste with waste. This invention is an innovative cross-industry collaboration with comprehensive improvements in energy and environmental protection.

The utility model relates to the technical field of semi coke wastewater and discloses a circulating treatment equipment for semi coke wastewater, which comprises a treatment box, a fixing seat and a negative pressure extraction assembly, and a booster pump is fixedly installed on the fixing seat. The circulating treatment equipment for semi coke wastewater, when the negative pressure extraction assembly is working, the extraction pump extracts gas from the treatment box through the extraction pipe one, forming a negative pressure environment in the negative pressure tank, so that the product liable to liquefaction in the treatment box is vaporized and then extracted, and is discharged through the extraction pipe two and the discharge pipe. The boiling point of the product is reduced through the negative pressure environment, the liable to liquefy substance is vaporized and separated at a lower temperature, the influence of high temperature on the performance of the adsorbent is avoided, and thus dry adsorbent is obtained. After the booster pump is started, the methanol in the methanol storage tank can be pumped into the treatment box through the connecting pipe one and the connecting pipe two, the adsorbent is washed, the step of washing the adsorbent with methanol can effectively remove the pollutants attached to the surface of the adsorbent, the adsorption performance of the adsorbent is restored, and the adsorbent is convenient for subsequent cyclic use.

The present application belongs to the technical field of sewage treatment device, and particularly relates to a high-salinity coking sewage treatment device. The high-salinity coking sewage treatment device comprises a sewage treatment assembly and a water pumping mechanism. The water pumping mechanism comprises a shell, a water outlet pipeline and a water inlet filter plate water inlet unit. The shell and the two adjacent water inlet filter plates form a water filtering chamber. One water inlet unit is arranged in each water filtering chamber. The water inlet unit has a water inlet and a water outlet. The water inlet extends from the shell to allow sewage to enter. The water outlet is in communication with the water filtering chamber. The size of the water inlet is adjustable. When the included angle between the two adjacent water inlet filter plates increases, the water inlet is reduced or closed. In use, the pressure difference generated in the two adjacent water filtering chambers can automatically clean the clogged water inlet filter plate, so that the water pumping mechanism is not easily clogged, and the working efficiency of the sewage treatment device is improved.

The present application relates to the technical field of water treatment catalyst, and relates to a platinum-manganese-copper ternary ozone catalyst with a metal oxide active layer directly synthesized by an oxidizing solution and a preparation method thereof.The preparation method comprises the following steps: adding a metal salt solution containing Pt, Mn and Cu into a suspension liquid of a pretreated oxidizing carrier; in a gradient adding mode of an oxidizing agent, the initial oxidizing agent concentration is controlled to be 0.1-0.5 mol / L, three-stage supplement is performed, and the oxidizing rate is controlled to be less than or equal to 0.8 mmol / min; the catalyst comprises a carrier gamma-Al2O3 and an active layer loaded on the surface of the carrier, and the active layer is composed of PtO2, MnO2 and CuO.The catalyst prepared by the preparation method of the present application has excellent performance in coking wastewater treatment, can efficiently degrade various pollutants in the wastewater, and has a wide application prospect; the energy consumption can be reduced by more than 65%, and the energy consumption and production cost are greatly reduced.

The invention relates to the technical field of coking wastewater treatment, in particular to a composite defluorination and desiliconization precipitation device for coking wastewater, comprising: a reaction tank for regulating the pH value of the internal coking wastewater; the water inlet assembly comprises a water inlet and a floating pipe which are arranged at the bottom of the reaction tank in a penetrating manner, the water inlet pushes the floating pipe to slide upwards when coking wastewater flows in, and the water inlet resets downwards and seals the water inlet when no coking wastewater flows in; the homogenizing wheel stirs and mixes the coking wastewater and a flocculating agent when the floating pipe floats upwards, and physically isolates the upper layer and the lower layer when the floating pipe slides downwards and resets; spraying of a flocculating agent and stirring of the homogenizing wheel are synchronously triggered during water feeding, so that wastewater is fully mixed with the agent, and the reaction efficiency is improved; when no water enters, the water inlet is automatically closed and the pesticide is stopped, so that waste is reduced and backflow is prevented; the blades are flattened to isolate upper and lower layers after water feeding is stopped, so that upper-layer liquid is prevented from being polluted by impurities during slag removal, and the secondary treatment effect is guaranteed.

The invention discloses a resourceful treatment method for desulfurization waste liquid and a harmless treatment system for waste water, which are characterized in that components of the desulfurization waste liquid are subjected to fractional precipitation, toxicant precipitates are separated out, detoxification is performed by adopting an oxidation method and a complexing method, medicaments are recycled, a denitrified electron donor is obtained, and the resourceful treatment method can also be used for treating high-nitrogen-content waste water. According to the scheme provided by the invention, the chemical reaction, the chemical separation and the biological process are combined, the common problem of safe conversion treatment of the desulfurization waste liquid and coprocessing of the coking wastewater is systematically solved, and the invention of the process mode has the technical characteristic of combining treatment of waste with waste and low-carbon pollution control.

This utility model relates to the technical field of wastewater treatment devices, and in particular to a membrane assembly for deep treatment of coal coking wastewater. Its features include: a support frame arranged inside the treatment tank; multiple sets of horizontally evenly distributed mounting frames fixedly connected within the support frame; each mounting frame fixedly connected to an MBR membrane; an aeration device arranged at the bottom of the support frame; two opposing suspension rods fixedly connected to the upper end of the support frame; each suspension rod fixedly connected to a lifting lug; longitudinal movement inserts arranged at both ends of the treatment tank; each longitudinal movement insert fixedly connected to a rod; the rods and lifting lugs are interlocked; each longitudinal movement insert includes two longitudinal rods fixedly connected to the treatment tank; the two longitudinal rods are jointly fixedly connected to a crossbeam; a drive screw is threadedly connected to the middle of the longitudinal movement rod; the left and right ends of the longitudinal movement rod are slidably connected to the two longitudinal rods; and the longitudinal movement rod is fixedly connected to the rod.

The invention relates to the technical field of wastewater treatment, in particular to a coking wastewater reuse pretreatment feeding regulation and control system which comprises an online monitoring module for monitoring water quality parameters, a reaction tank for wastewater reaction treatment and a secondary sedimentation tank for solid-liquid separation. Comprising a material pretreatment unit, a mixing and proportioning unit, an intelligent regulation and control center, a material regeneration unit and an emergency buffer pool, through a solid waste collaborative pretreatment technology, resource utilization of coking by-products is realized, the agent purchasing cost and the hazardous waste treatment cost can be effectively reduced, secondary pollution is reduced, the addition amount and reaction parameters are dynamically adjusted in cooperation with a PID algorithm of an intelligent regulation and control center, the water quality fluctuation resistance can be improved, the COD and SS removal effect is effectively improved, and the method is suitable for industrial production. The emergency buffer pool is combined to cope with extreme water quality fluctuation, so that the recycling of a treatment material is realized, the operation stability and the anti-interference capability of the system are improved, meanwhile, the consumption cost of the material is further reduced, and the sludge yield is reduced.

The present application relates to a kind of resource utilization methods of semi-coke wastewater, including oil separation precipitation, phenol removal by filter pressing, resin oil removal and phenol removal, electrolytic oxidation, evaporation concentration, spray drying and recrystallization purification ammonium sulfate step, by adding sulfuric acid, ammonia water to semi-coke wastewater pH control, further by scientific experimental method reduces COD, BOD in wastewater, improve the original semi-coke wastewater treatment technology oil removal and phenol removal process to cause the problem such as phenol recovery difficulty and by-product ammonium sulfate impurity, by adding sulfuric acid in advance, adjust pH to lower level, so that most phenols are precipitated and recovered, and then further recover oil and phenols using resin;Sulfuric acid and ammonia water control pH at the same time, respectively recover ammonia and phenolic substances in wastewater, obtain phenolic products and by-product ammonium sulfate products, realize resource recovery, produce good economic benefits, while the steam water is treated by biochemical-MBR, realize water reuse.

The application discloses a coking wastewater purifying agent and a preparation method and application thereof, and the purifying agent comprises the following raw materials in parts by weight: 20-25 parts of activated carbon, 18-25 parts of a compound, 4-9 parts of polyacrylamide, 1-5 parts of a surfactant and 60-90 parts of water, wherein the compound is prepared by compounding pear residue and modified shell carbon. The application aims at solving the technical problem that coking wastewater cannot reach the discharge standard.

The utility model relates to the technical field of coking wastewater treatment of steel mills, in particular to efficient wastewater purification and waste heat recovery integrated equipment for coking of steel mills, which comprises a rough filtration tank, an aeration tank is fixedly mounted on the outer surface of the rough filtration tank, and a heat preservation water tank is buried on the ground of one side of the rough filtration tank. And heat dissipation fins are fixedly mounted in the filtering sedimentation tank. According to the efficient wastewater purification and waste heat recovery integrated equipment for coking in the steel mill, wastewater is filtered by a filtering fence after being discharged into a coarse filtering box and then enters a filtering and settling pond to be filtered step by step, and when the wastewater flows through the filtering and settling pond, heat of the wastewater is absorbed by heat dissipation fins, so that the heat dissipation efficiency of the wastewater is improved. At the moment, the first circulating water pump is started to pump out the water in the heat preservation water tank and take away heat, so that the temperature can be reduced while impurities in the waste water are settled, the temperature can be stored in the heat preservation water tank, and the heat of the waste water can be recycled for other purposes.

The invention discloses a semi-coke wastewater-based phenolic resin porous carbon adsorption material and a preparation method thereof, high-pollution semi-coke wastewater is used as a phenol source, waste potato residues are used as a modifier, and the semi-coke wastewater is subjected to composite flocculation, macroporous adsorption resin adsorption elution and reduced pressure distillation concentration to obtain a phenol-rich solution; carrying out alkaline hydrolysis-oxidation-silane coupling agent graded modification on the potato residues; the preparation method comprises the following steps: polymerizing a phenol-rich solution with furfural, compounding with graded modified potato residues, carrying out in-situ crosslinking with urotropine, carbonizing, and carrying out ZnCl2-citric acid composite activation to finally prepare the semi-coke wastewater-based phenolic resin porous carbon adsorption material. According to the method, the potato residues and the semi-coke wastewater are synergistically recycled, the material is endowed with high specific surface area, a multi-stage pore channel structure and rich surface functional groups through compound modification, graded modification and graded carbonization, the potato residues are completely recycled, the process is free of secondary pollution, the cost is reduced by 30%-40%, and the method can be widely applied to the fields of industrial wastewater treatment, atmospheric pollutant adsorption and the like. The environment-friendly and economic values are realized.

The application discloses a kind of microbial complex bacterial population, microbial inoculum and application thereof, and is related to microorganism and application technical field.The microbial complex bacterial population includes Acinetobacter sichuanensis LHH12, Pseudomonas songnenensis SJ2-76, Diaphorobacter nitroreducens SYY4 and Thauera aminoaromatica SJ2-12.The microorganism for constructing complex bacterial population is obtained from semi-coke wastewater, and has good phenol tolerance and chemical oxygen demand (COD) degradation capacity, and can be used for purifying high-phenol wastewater, biological denitrification and phosphorus removal and degrading COD.The microbial complex bacterial population of the application can effectively improve the COD degradation rate in phenol ammonia wastewater and effectively reduce the treatment cost of high-phenol ammonia wastewater such as semi-coke without changing the original microbial community composition of wastewater through the synergistic effect between strains, which has great potential for promoting low-carbon green and sustainable development of coal chemical industry.

The application discloses a flocculant for coking wastewater and a preparation method and application thereof, and comprises the following raw materials in parts by weight: 1-5 parts of polydimethyl diallyl ammonium chloride and 6-12 parts of a composite, wherein the composite is prepared from kaolin loaded N-succinyl-O-carboxymethyl chitosan and konjac glucomannan. The application aims at solving the technical problem that coking wastewater cannot reach the discharge standard.