71results about How to "Improve settlement performance" patented technology

The invention provides a method for precipitating nickel and cobalt in a solution containing nickel and cobalt and a cobalt nickel hydroxide product. The method comprises the following steps: step S100, carrying out a seed crystal pretreatment reaction on a nickel-cobalt-containing solution by adopting first nickel-cobalt precipitation underflow to form pretreated nickel-cobalt ore pulp; step S200, adding an alkaline precipitation inducer into the second nickel-cobalt precipitation underflow or the first nickel-cobalt precipitation overflow to carry out alkali conversion reaction to form alkali conversion crystal mush; s300, the pretreated nickel-cobalt ore pulp and alkali conversion crystal mush are continuously introduced into a reactor for a nickel-cobalt precipitation reaction, and nickel-cobalt precipitated ore pulp is obtained; step S400, continuously performing dense separation treatment on the ore pulp subjected to nickel-cobalt precipitation; s500, the third nickel-cobalt precipitation underflow is filtered and washed in sequence, a nickel-cobalt hydroxide product is obtained, and the problems that in the prior art, when nickel and cobalt are precipitated through a nickel-cobalt-containing solution, MHP is small in particle size and not prone to sedimentation, the water content of a filter cake is high, or the precipitation rate is poor, and the magnesium content is high before technical improvement are solved.

The invention discloses a dust collecting device for producing protective clothing and treating dust, and relates to the technical field of dust collecting devices, the dust collecting device comprises a pre-dust-collecting chamber shell and a second combined flow guiding piece, the upper end of the left side of the pre-dust-collecting chamber shell is connected with an air inlet pipeline, and the lower end of the right side of the pre-dust-collecting chamber shell is connected with an air outlet pipeline; the second combined flow guide part is arranged between the air inlet pipeline and the air outlet pipeline, and the second combined flow guide part is composed of a rectangular outer frame, four second flow guide plates, an angle and distance adjusting mechanism and the like; the dust collector has multiple advantages, the burden of the filter bag can be relieved through the dust pre-collection chamber shell, the first combined flow guide part can flexibly change the included angle between the first flow guide plate and the center axis of the air inlet pipeline by means of the first electric push cylinder according to the flow and concentration of dust-containing air, and the second combined flow guide part can flexibly change the included angle between the first flow guide plate and the center axis of the air inlet pipeline according to the size and concentration of dust particles. The inclination angles of the four second flow guide plates are synchronously adjusted through the angle adjusting mechanism, and the distance between the second flow guide plates is adjusted in a self-adaptive mode through the distance adjusting mechanism.

The invention relates to the technical field of wastewater treatment, in particular to a method for cooperatively treating petrochemical wastewater based on porous carbon and micro-nano bubbles, which comprises the following steps: S1, pretreating the petrochemical wastewater; s2, carrying out micro-nano aeration on the pretreated petrochemical wastewater by adopting a micro-nano bubble generation device to obtain aerated wastewater; s3, the aerated wastewater is subjected to adsorption treatment through modified porous carbon, purified wastewater is obtained, and the modified porous carbon is biomass porous carbon loaded with rose red ammonium tricarboxylate. According to the invention, through a cooperative treatment process of pretreatment, micro-nano bubble oxidation and modified porous carbon adsorption, efficient removal of multiple types of pollutants (including refractory organic matters, heavy metals and suspended particulate matters) is realized, the wastewater treatment efficiency is improved, and the operation cost is reduced.

The invention provides a low-carbon ultra-deep denitrification method and device for town sewage, belongs to the field of sewage treatment, and is used for town sewage treatment. In a continuous flow anaerobic-aerobic anoxic alternating-post anoxic process, town sewage and refluxed heavy sludge enter an anaerobic zone of a biochemical pool, refluxed light sludge and added hydroxylamine enter an aerobic anoxic alternating zone of the biochemical pool, and a sludge-water mixed solution flowing out of a post anoxic zone of the biochemical pool enters a secondary sedimentation tank for sludge-water separation; and discharging the supernatant as effluent, separating the precipitated sludge into heavy sludge and light sludge in a cyclone separator, refluxing the heavy sludge and part of the light sludge into the process according to the mode, and discharging part of the light sludge as residual sludge. Microorganisms in the sludge store an internal carbon source in an anaerobic zone of the biochemical pool, short-cut nitrification-endogenous denitrification is realized in an aerobic-anoxic alternating zone of the biochemical pool, and ultra-deep endogenous denitrification nitrogen removal is realized in a rear anoxic zone of the biochemical pool. According to the invention, low-carbon ultra-deep nitrogen removal of town sewage can be realized.

The invention provides an intelligent sewage treatment HPB-MBR system and a control method. The sewage treatment device comprises a biochemical pool, a multi-stage rotational flow concentration mechanism and an MBR (Membrane Bioreactor) pool which are communicated in sequence, the biochemical tank comprises an anaerobic tank, an anoxic tank and an aerobic tank which are communicated in sequence. The multi-stage rotational flow concentration mechanism is communicated with the aerobic tank and comprises 2-3 stages of rotational flow concentration mechanisms which are connected in series. And the MBR tank is communicated with an overflow discharge hole of the first-stage cyclone concentrator. And the MBR tank is provided with a backflow pipeline and a drainage pipeline. And the return pipeline is communicated with the aerobic tank. The number of stages of the multi-stage rotational flow concentration mechanism is proper, so that sludge with relatively large specific gravity can be relatively thoroughly separated and flows back to the anoxic tank and / or the aerobic tank through the first reflux. Thus, the flow of the first reflux is relatively small, the concentration of sludge entering the MBR tank is low, the flow of the MBR tank for the second reflux is also small, the energy consumption is reduced, and the degree of influence of the second reflux on dissolved oxygen of the aerobic zone is reduced.

The invention relates to the technical field of wastewater treatment, in particular to a pharmaceutical production wastewater treatment method and system based on advanced oxidation, and the method comprises the following steps: analyzing each wastewater grey-scale map to obtain a flocculating agent sedimentation effect value; analyzing each wastewater HSV map to obtain a chromaticity difference value; calculating effect index values based on the settling effect value of the flocculating agent and the chromaticity difference value, respectively judging whether the maximum effect index value corresponding to each preset position is greater than an effect threshold value or not, if so, taking the flocculating agent usage amount corresponding to the maximum effect index value as the optimal flocculating agent usage amount, and if not, taking the optimal flocculating agent usage amount as the optimal flocculating agent usage amount. The average value serves as the overall optimal flocculant usage amount of the wastewater sample, the target flocculant usage amount is obtained according to the overall optimal flocculant usage amount of the wastewater sample, the standard weight of the wastewater sample and the weight of the to-be-treated wastewater, and the to-be-treated wastewater is treated with the target flocculant usage amount. According to the invention, the adding amount of the flocculating agent in wastewater treatment can be accurately controlled.

The utility model discloses a deposition removing device for a high-density coagulative precipitation tank, which comprises a mother pipe arranged outside a diversion tank, connected with an air pipeline of a factory and used for accessing compressed air. The branch pipe is arranged on the outer wall of the main pipe and located above the flow guide pool, and the inlet end of the branch pipe is fixedly connected with the main pipe. The valve is installed on the branch pipe, detachably connected with the branch pipe and used for cutting off or connecting compressed air, and the branch pipe is used for blending the compressed air into the flow guide pool. The spray head pipe is arranged at the outlet end of the branch pipe, is integrally connected with the branch pipe, is positioned at the wall root of the baffle wall, is opposite to the position of the dead angle area, and is used for spraying compressed air in three paths to blow off silt at the bottom surface of the diversion pool, the wall surface of the lower part of the baffle and the corner between the baffle wall and the diversion trench respectively; sediment in different areas of the dead angle area can be thoroughly blown away by means of pressure of compressed air in three paths, the sediment overflows from the flow guide pond to the water distribution pond, the situation that the dead angle area is blocked by the sediment is eliminated, and the sedimentation effect is improved.

This invention discloses a thickener with a sealing mechanism, relating to the field of thickener technology. The invention includes a thickener body, a rotating shaft, a rake frame, and a movable box. The mixing mechanism includes a mixing rod with a spiral blade fixed to it, and a sealing mechanism also fixed to the mixing rod. A shifting mechanism is slidably disposed on the outer circumference of the rotating shaft. The rotating shaft drives the movable box to rotate, thereby causing the friction wheel to drive the mixing rod and spiral blade to rotate and mix the slurry, ensuring thorough mixing of the flocculant and slurry. The rotating shaft drives the dispersion disc to rotate, which can disperse the slurry to various positions within the thickener body, ensuring the flocculant is also evenly distributed within the thickener body. The shifting mechanism causes the dispersion disc to rise, reducing the opening of the discharge tank and thus decreasing the discharge speed. The movable box moves downwards, making the mixing rod parallel to the bottom of the thickener body. At this time, the rotating spiral blade stirs up the mud layer at the bottom of the thickener body, reducing the resistance on the rake frame and preventing deformation or jamming of the rake frame.

The invention discloses an advanced treatment method of tungsten beneficiation wastewater, which is characterized in that a composite flocculant is adopted to flocculate the tungsten beneficiation wastewater, and the composite flocculant is mainly composed of cationic polyacrylamide, a flocculant A and lignocellulose, the flocculant A comprises at least one of polyferric sulfate, polyaluminum chloride, polyaluminum ferric chloride, polyaluminum ferric sulfate, ferric sulfate, ferrous sulfate and aluminum chloride. According to the advanced treatment method for the tungsten beneficiation wastewater, under the action of the composite flocculant, the cost of a treatment agent can be reduced to about 0.16-0.20 yuan / m < 3 >, the cost reduction amplitude is as high as 80% or above, the treatment time can be shortened to be within 10 min, the precipitation time is greatly shortened, meanwhile, suspended solids in the wastewater can be effectively removed, actual production requirements are met, and the method is suitable for industrial production. The method has the advantages of low treatment cost, high treatment efficiency, good removal effect, good adaptability and the like, can realize advanced treatment of the tungsten beneficiation wastewater, and is high in use value and good in application prospect.

The invention provides application of high-molecular-weight cationic polyacrylamide in a titaniferous solution sedimentation process in a sulfuric acid method titanium dioxide process. The number-average molecular weight of the high-molecular-weight cationic polyacrylamide is greater than or equal to 10,000,000. The invention further provides a flocculating settling method for improving the titanium liquid settling effect in the sulfuric acid method titanium dioxide process. According to the method, cationic polyacrylamide is applied to the titanium dioxide titanium liquid sedimentation procedure through the sulfuric acid method, the preparation time of a flocculating agent can be shortened by more than half compared with that in the prior art, in the flocculation process, the concentration of dissociated ions is higher due to the high cationic degree, the adsorption effect on charges is higher, and the flocculation efficiency is improved. Particularly, the adsorbent has a relatively strong adsorption effect on a silicic acid component contained in the titanium liquid, so that the flocculating settling process is performed more quickly and thoroughly. By adopting the emulsion type high-ionic-degree high-molecular-weight cationic polyacrylamide, compared with the traditional flocculant product, the flocculating settling effect of the sulfate process titanium dioxide titanium liquid can be effectively improved, and the production cost is comprehensively reduced.

The invention belongs to the technical field of sludge treatment, and particularly relates to an aerobic granular sludge sewage treatment process applied to a continuous flow activated sludge process. A pelletizing agent is added into a granular sludge incubator, so that the pelletizing agent is in targeted combination with filamentous bacteria in activated sludge to form granular sludge, the granular sludge and flocculent sludge are effectively separated through a cyclone separation system, the granular sludge continuously flows back into a biochemical system, and the flocculent sludge is discharged into a sludge concentration tank or a sludge storage tank for dehydration treatment. According to the present invention, the AGS is rapidly cultured and the stable operation is maintained in the current or new continuous flow activated sludge process, such that the treatment water amount of the traditional continuous flow sewage treatment process can be subjected to in-situ capacity expansion, the impact load resistance can be enhanced, the addition amount of the phosphorus and nitrogen removal agent can be reduced, and the in-situ excess sludge can be reduced.

The invention provides a treatment method of sulfuric acid process titanium dioxide acidic waste, the sulfuric acid process titanium dioxide acidic waste comprises acidic wastewater and titanium concentrate acidolysis slurry, and the method comprises the step of separately treating the acidic wastewater and the titanium concentrate acidolysis slurry. According to the method, the acid wastewater and the titanium concentrate acidolysis slurry are subjected to neutralization, sedimentation and squeezing treatment separately, so that the neutralization rate, the sedimentation rate and the sedimentation effect are improved, the consumption of a neutralizer is reduced, meanwhile, the product quality of titanium gypsum neutralized by the acid wastewater is improved (the content of sulfur trioxide is greater than or equal to 30%), and in addition, the yield of titanium is also increased.

The backwashing type high-turbidity water sedimentation tank comprises a sedimentation tank body with an upward opening, a distributed water inlet mechanism is arranged on the outer side of the sedimentation tank body, and a sedimentation backwashing mechanism is arranged at the bottom in the sedimentation tank body; the dispersed water inlet mechanism comprises a dispersed water inlet buffer box body fixedly connected to the outer side of the sedimentation tank body, and a plurality of dispersed water inlet open grooves communicated with the interior of the dispersed water inlet buffer box body are formed in the side wall of the sedimentation tank body; a dispersed water inlet overflow groove body is fixed on one side, far away from the sedimentation tank body, of the dispersed water inlet buffer tank body, and is communicated with the interior of the dispersed water inlet buffer tank body through a dispersed water inlet overflow open groove; wherein the distributed water inlet mechanism can more uniformly and stably convey to-be-treated high-turbidity water into the sedimentation tank body, so that the sedimentation effect is prevented from being influenced by non-uniform water distribution; according to the linkage type inclined plate sedimentation mechanism, the sedimentation area is increased by utilizing a plurality of sedimentation blocking inclined plates, and the sedimentation distance of suspended particles is shortened, so that the sedimentation efficiency is improved.

The utility model belongs to water treatment technical field, specifically discloses a perforated folded plate for sedimentation tank and the sedimentation tank of oblique installation perforated folded plate. The perforated folded plate is the plate -like structure of undulating extension and includes at least three folded plate tops of undulating top end and three folded plate bottoms of undulating bottom end, and the folded plate top of perforated folded plate is adjacent to the folded plate bottom and is provided with a plurality of folded plate holes on or close to the folded plate top. The water inlet and the water outlet of the sedimentation tank are separately arranged in the lower part and the upper part of the pool body, a folded plate support is fixed above the water inlet in the pool body, a plurality of aforementioned perforated folded plates are obliquely arranged on the folded plate support in the pool body, the folded plate top of the perforated folded plate faces upwards and the folded plate bottom faces downwards. The perforated folded plate top of the utility model is provided with the folded plate hole, and the sewage can flow upwards through the folded plate hole, which not only can increase the sedimentation area, but also can realize automatic sludge discharge, has the characteristics of simple structure, wide application range, high sedimentation efficiency and automatic sludge discharge.

The invention relates to a thickener heat exchange system, and belongs to the technical field of ore pulp treatment. Comprising a first heat exchange assembly and a second heat exchange assembly. The first heat exchange assembly and the second heat exchange assembly are both arranged in the thickener; the first heat exchange assembly and the second heat exchange assembly are internally provided with heat exchange media. The heat exchange medium is a reaction medium from a fission bin, and the heat exchange medium flows back to the fission bin after completing heat exchange in the thickener. The waste heat utilization of the fission bin and the ore pulp cooling process of the thickener are combined into a whole, so that not only is the equipment resource saved, but also the energy consumption of the system is obviously reduced. The viscosity of the ore pulp can be reduced by properly increasing the temperature of the ore pulp, the flowability of solid particles in the ore pulp is improved, the particles can settle to the bottom more quickly, and therefore the solid-liquid separation efficiency of the thickener is improved.

The utility model relates to a water sample centrifugal bottle which comprises a bottle body and a vertical frame arranged below the bottle body and used for supporting the bottle body to be vertical, a top cover is detachably connected above the bottle body, a conical cylinder is communicated below the bottle body, baffle plates which are connected with each other are arranged on the inner surface of the bottle body and the inner surface of the conical cylinder, and the lower ends of the baffle plates are positioned above the inside of a bottom cylinder. A clamping groove is formed in the outer surface of the conical cylinder, the lower portion of the conical cylinder is communicated with a bottom cylinder, a bottom cover embedded into the vertical frame is detachably connected to the lower portion of the bottom cylinder, a balancing weight is arranged in the vertical frame, a plurality of elastic pieces are connected to the upper portion of the vertical frame, and a clamping ridge connected with the clamping groove in a clamped mode is connected to the upper portion of each elastic piece. The centrifugal bottle can be vertically stood and settled through the vertical frame or centrifugally settled through the centrifugal machine, so that different settling separation modes can be adopted according to requirements, the time required by conventional standing and settling is shortened during standing, and secondary turbidity possibly caused by shaking when the centrifugal bottle is taken out after centrifugal settling is avoided during centrifugation.

This utility model discloses a thickener for sodium bicarbonate production, including a settling tank. An overflow weir is installed at the upper part of the settling tank, and a guide channel is installed at the upper part of one side of the settling tank. A support base is fixedly installed at the middle of the outer surface of the rear end of the settling tank, and a premixing device is fixedly installed on the upper outer surface of the support base. The thickener for sodium bicarbonate production described in this utility model uses a motor-driven drive shaft, which drives a first agitator and a second agitator to rotate in opposite directions through belt transmission and gear meshing, forming a bidirectional stirring effect. This allows the material to be quickly and uniformly mixed in the cylindrical mixing chamber, avoiding excessively high or low local flocculant concentrations and ensuring a stable and reliable settling process.

The invention discloses a foundation fixing anti-seepage pad for reinforcing and repairing a railway ballast track, a ballast bed structure and a ballast bed reinforcing and repairing method. The foundation fixing anti-seepage pad is of a micro-arch structure with the middle higher than the two sides in the track direction and comprises a bottom surface anti-seepage layer, a middle grid layer and a surface protection layer, and the bottom surface anti-seepage layer and the surface protection layer are compounded on the lower surface and the upper surface of the middle grid layer through a binding agent. And the middle grid layer is a fiber reinforced composite material grid. The foundation-fixing anti-seepage pad provided by the invention is combined with the actual condition of a railway, integrates reinforcement and seepage prevention, has better mechanical properties, high elongation and excellent long-term corrosion resistance, fatigue resistance and seepage resistance, has a stronger horizontal constraint effect on ballast particles, can obviously enhance the bearing capacity of a ballast layer, effectively slows down settlement, reduces the problems of frost boiling and the like, and has a good application prospect. The repair frequency is reduced, and reliable guarantee is provided for the safety and the stability of a railway system.

Provided is a method for processing a battery member, which improves the recovery rate of a carbon component and reduces the loss rate of a metal component. A treatment method disclosed herein includes: a heating step S10 in which a recovery target containing at least a positive electrode containing a lithium transition metal composite oxide having a layered structure and a negative electrode containing a carbon material is heated at 850 DEG C or higher; and a separation step (S30) in which a foaming agent and a collecting agent are added to the slurry containing the object to be recovered after the heating step (S10), and a metal component and a carbon component contained in the object to be recovered are separated.

This application relates to the field of carbon source materials, and in particular to a composite carbon source for enhancing the denitrification capacity of activated sludge, its preparation method, and its application. The composite carbon source for enhancing the denitrification capacity of activated sludge, by weight, comprises: 45-60 parts of fast-acting carbon source, 10-15 parts of long-acting carbon source, 9-16 parts of synergist, 0.2-0.5 parts of activator, 4-8 parts of composite functional agent, and 20-25 parts of deionized water. This composite carbon source effectively promotes the denitrification start-up speed, provides a stable and continuous carbon source supply, effectively avoids the defects of traditional carbon sources such as excessive supply in the early stage and insufficient supply in the later stage, and ensures efficient operation of the entire denitrification process. It is safe and convenient to use, non-toxic, and poses no risk of combustion or explosion. Storage and addition are simple, significantly reducing on-site operational safety risks. The carbon release process is stable and controllable, and multiple slow-release mechanisms enable flexible regulation of the carbon source release rate to match the denitrification requirements under different operating conditions.

The utility model discloses a short-cut nitrification coupling anaerobic ammonia oxidation integrated reactor, a perforated plate is arranged in the reactor, and a first part for short-cut nitrification and a second part for anaerobic ammonia oxidation are respectively distributed on the upper side and the lower side of the perforated plate; sludge of nitrite bacteria is attached to the interior of the first part through a first filler so as to fix aerobic bacteria, and the first part is connected with an aeration source; anaerobic ammonia oxidizing bacteria are fixed in the second part through a second filler; the size of the filler is greater than the hole size of the perforated plate; the second part is provided with a muddy water backflow and separation module; the muddy water backflow and separation module comprises the muddy water separation area and a sludge backflow area which is integrally connected with the muddy water separation area; a water outlet pipe is connected into the mud-water separation area and is used for separating and discharging aged sludge. The reactor can stabilize the growth of dominant bacteria and improve the denitrification treatment effect.

The utility model relates to the technical field of sludge screening, and discloses a heavy sludge screening device which comprises a placing box and a sludge screening device body, a protective shell is installed above the placing box, the sludge screening device body is installed in an inner cavity of the protective shell, and a circular ring installation plate is integrally installed on the outer side wall of the sludge screening device body. The circular ring mounting plate is fixedly connected to the protective shell, a first semicircular screening plate and a second semicircular screening plate are arranged in an inner cavity of the sludge screening device body, rectangular notches are formed in the two opposite side walls of the sludge screening device body and are symmetrical to each other, and rotating mechanisms are arranged in inner cavities of the two rectangular notches; the rotating mechanism fixedly penetrates through the first semicircular screening plate and the second semicircular screening plate, the rotating mechanism is used for driving the first semicircular screening plate and the second semicircular screening plate to rotate, storage boxes are fixedly mounted at the bottoms of the first semicircular screening plate and the second semicircular screening plate correspondingly, and the two storage boxes are symmetrical to each other; and moving mechanisms are arranged at the bottoms of the first semicircular screening plate and the second semicircular screening plate. The utility model is more practical, and is suitable for wide popularization and use.

The invention discloses low-temperature-resistant activated sludge applicable to alpine areas and a rapid cultivation method and application thereof, and relates to the technical field of sewage treatment. The invention discloses a low-temperature-resistant activated sludge cultivation method applicable to alpine areas, comprising the following steps: adding inoculated sludge into a sequencing batch activated sludge reactor, the reactor being operated in a water inlet-anoxia-aeration-sedimentation-drainage mode to domesticate the sludge, the water inlet pH being controlled between 7 and 8, the reactor being controlled at a temperature of 3 to 4°C throughout the operation, the reactor working process being water inlet for 15 to 20 minutes, anoxicity for 180 to 210 minutes, aeration for 350 to 360 minutes, sedimentation for 20 to 30 minutes, and drainage for 10 minutes; the drainage ratio being controlled between 30 and 50%, the aeration flow rate being 0.1 to 0.2 L / min, and domesticating continuously for 20 to 25 days to obtain the low-temperature-resistant activated sludge. The cultivation method provided by the present invention can realize the rapid cultivation of low-temperature activated sludge without the need to add additional low-temperature bacterial agents during the cultivation process, and the cultivated low-temperature activated sludge can achieve efficient nitrogen and phosphorus removal without the need to add carbon sources and phosphorus removal agents.

The invention provides a low-carbon deep denitrification treatment process for high-ammonia-nitrogen wastewater, and relates to the field of wastewater treatment. The treatment process comprises the following steps that high-ammonia-nitrogen wastewater serves as wastewater to be treated, an airlift reflux integrated sewage treatment device is selected, the device comprises an aerobic reaction chamber and an anaerobic reaction chamber, the aerobic reaction chamber is an ammonia oxidizing bacteria area, the anaerobic reaction chamber is an anaerobic ammonia oxidizing bacteria area, ammonia oxidizing bacteria and anaerobic ammonia oxidizing bacteria are subjected to partitioned culture, and the ammonia oxidizing bacteria and the anaerobic ammonia oxidizing bacteria are separated; inoculating strain sludge, and treating the anaerobic ammonia oxidation granular sludge with an external electric field, wherein the intensity of the electric field is 50-100V / m; the carbon-nitrogen ratio is controlled to be 1: (2-3); the initial hydraulic retention time is 90-120 min, the water inlet flow is 6-10 m < 3 > / h, and the reflux ratio is controlled to be 190%-210%; after one week of operation, the hydraulic retention time is adjusted to be 30-60 min, the water inlet flow is 5-8 m < 3 > / h, and the reflux ratio is controlled to be 250%-300%. The high-ammonia-nitrogen animal husbandry wastewater is treated by adopting the process disclosed by the invention, the removal rate is high, green low-carbon treatment is realized, a high-ammonia-nitrogen wastewater cooperative treatment system is constructed, and the limitation of a traditional nitrification and denitrification nitrogen removal technology is broken through.

The utility model discloses a kind of multi-stage baijiatian extraction liquid settling devices, belong to settling device technical field. Mainly including settling pond, settling assembly is arranged in the inside of settling pond, settling assembly has first pool, second pool and third pool, auxiliary assembly is arranged in the inside of first pool and second pool, auxiliary assembly includes processing box, the inside of processing box is provided with multiple groups of inclined plate, handle is slidably penetrated and set in the both ends of processing box, handle has crook portion and two groups of vertical rods, at least two groups of clamping parts are set in the both ends of processing box, clamping part is set on the outside of vertical rod. A kind of multi-stage baijiatian extraction liquid settling device of the present application, by the setting of auxiliary assembly, every group of pool can be secondary settling treatment to liquid by processing box when settling, further improve settling effect, reach the effect of secondary auxiliary settling to liquid in every group of pool.

The invention discloses a method for treating sewage by combining micro-aerobic hydrolysis with coenzyme catalyst reinforced activated sludge. The method adopts a pretreatment tank, a primary sedimentation tank, an aerobic tank and a secondary sedimentation tank which are sequentially connected in series, according to the method, activated sludge containing microorganisms is put into a pretreatment tank and an aerobic tank, aeration is carried out while the pretreatment tank is filled with filler, a sludge domestication stage is firstly carried out, a coenzyme catalyst is put into the aerobic tank when the treatment capacity of a system reaches the optimum, modified activated sludge is obtained, and the sewage treatment efficiency is further improved. The coenzyme catalyst contains a carrier and an iron source; the carrier is selected from at least one of activated carbon and diatomite. The method is simple to operate, convenient to manage and suitable for upgrading and reconstruction of industrial wastewater.

The utility model discloses a carbon monoxide washing water purification device for preparation of calcined petroleum coke, which comprises a sewage pool and reciprocating track assemblies, partition plates are arranged on the inner side of the sewage pool in a staggered manner, and the reciprocating track assemblies are laid on the outer sides of the multiple groups of partition plates and at the bottom end in the sewage pool. The reciprocating running track assembly comprises an S-shaped track, side sliding grooves, a mounting panel and a rack groove, and the side sliding grooves are formed in the two sides of the S-shaped track. According to the carbon monoxide washing water purification device for preparing the calcined petroleum coke, through mutual cooperation of flocculation, sedimentation and filter pressing mechanisms, the flocculation and sedimentation effects of ash in washing water are improved, the turbidity of the treated washing water is reduced, the water content of a filter cake passing through a filter press is reduced, the functionality is high, and after the ash in the washing water is flocculated and settled, the water content of the filter cake is reduced. And finally, harmless treatment is carried out, so that the purpose of purifying the washing water is achieved.

This utility model discloses a high-efficiency sand-water separator for wastewater treatment, specifically relating to the field of wastewater treatment. It includes a housing with a spiral conveyor chamber installed on it; a cyclone separator is installed at the inlet end of the housing, and a buffer tank is installed at the outlet end of the cyclone separator, with a first deceleration assembly installed on the buffer tank; a guide tube is installed at the outlet end of the buffer tank, with a second deceleration assembly installed on the guide tube; a baffle assembly is installed inside the housing, inclined at the outlet of the guide tube; the buffer tank uses the first deceleration assembly to perform a primary deceleration on the wastewater discharged from the cyclone separator. This utility model pre-treats the floating fine sand particles in the sand-water mixture before decelerating the incoming water, avoiding the water swirling and agitation phenomenon caused by the large impact of the incoming water when treating wastewater containing a large amount of floating matter. This prevents lighter fine sand particles from overflowing back to the inlet pump room with the water flow, increasing the load and energy consumption of subsequent treatment.

The present application provides a method for promoting carbon source production by seaweed sludge co-fermentation through microbial pretreatment. The method comprises: adding microbial inoculum with protein degradation ability to the sludge; adding free nitrous acid and rhamnolipid to the sludge obtained in step one, and carrying out pretreatment in an anaerobic environment; mixing the pretreated sludge with seaweed, and carrying out seaweed sludge co-fermentation to obtain the supernatant of the fermentation mixture. The method for preparing seaweed sludge co-fermentation through microbial pretreatment can be widely applied to sludge treatment and recycling, and can improve the treatment efficiency of sludge and reduce the cost of sludge treatment. The seaweed sludge fermentation liquid prepared by the present application can be used as an additional carbon source for sewage treatment, which can provide sufficient nutrients for microorganisms, effectively promote the denitrification and polyphosphorus metabolism in the sewage treatment process, and thus improve the effect of denitrification and phosphorus removal in sewage treatment.

The invention belongs to the technical field of tailing water treatment, and particularly relates to a tailing water settling thickener which comprises a body, a water inlet and a water outlet are formed in the surface of the body, the water inlet is used for injecting tailing water, the water outlet is used for discharging settled tailing water, and a bottom cover is fixedly mounted on the surface of the body through bolts. An upper cavity and a lower cavity are formed in the body, a conical plate is arranged between the upper cavity and the lower cavity, the water inlet is formed in the surface of the upper cavity, a small amount of a settling agent is put multiple times through the putting device, meanwhile, a stirring rod is matched, the settling agent can be rapidly and evenly stirred, and then the settling effect of tailing water is improved; by opening the gate valve on the surface of the water guide pipe, water in the upper cavity flows into the lower cavity, is pumped out through the water outlet and then is spin-dried through the spin-drying mechanism, sedimentation treatment of tailing water is completed, and meanwhile the sedimentation efficiency is improved in a grading mode.