CN217921775U - Combined device for recycling and treating down feather cleaning wastewater - Google Patents

Abstract

The utility model discloses a modular device that eiderdown cleaning wastewater retrieval and utilization was handled. The utility model discloses a sump pit, feather recycling machine, equalizing basin, one-level air supporting machine, AO biochemical sedimentation tank, second grade air supporting machine, second grade air supporting outlet well and the valveless filtering pond that connect gradually, feather recycling machine disposes 0.0750mm ~ 0.120 mm's micropore screen cloth, pack the braid formula in the AO biochemical sedimentation tank and pack. The utility model discloses can solve among the prior art down recovery rate low, the system degree of automation is low, shock resistance is low and go out water quality of water unstability scheduling problem, have that the construction investment is low, the treatment effect is good, the working costs is low, degree of automation is high, the down recovery rate is high, go out water can stably reach advantages such as enterprise's retrieval and utilization standard, be fit for wideling popularize in the down trade.

Description

Combined device for recycling and treating down feather cleaning wastewater

Technical Field

The utility model relates to a eiderdown cleaning wastewater retrieval and utilization is handled, in particular to modular eiderdown cleaning wastewater retrieval and utilization device of handling.

Background

The total water volume on the earth is 14 hundred million cubic kilometers, the fresh water reserve only accounts for 2.53 percent of the total water volume on the world, and only underground water, lake fresh water and riverbed water which are probably utilized by human beings account for about 0.77 percent of the total water volume on the earth. The fresh water which can be used by human beings is only about 0.26 percent of the total water quantity on the earth by removing the underground water which can not be exploited. To date, human fresh water consumption has accounted for 54% of the amount of fresh water available worldwide. In addition, the per capita water resource occupancy of China is only 1/4 of the per capita water resource occupancy of the world, the water resource occupancy is 121 th in the world, more than half of cities in 600 cities in the country lack water to different degrees, and the country which is considered as 'water resource shortage' by the united nations is a non-competitive fact.

Water is an irreplaceable important resource and is an indispensable factor for human sustainable development. However, water resources on earth are becoming increasingly scarce due to the proliferation of human population and the pollution of water resources by human activities. Along with the deepening of natural cognition and the progress of scientific technology, people gradually realize that water is a renewable resource, and sewage can be recycled after being properly treated, so that the virtuous cycle of water in nature is realized. The sewage recycling technology is produced at the same time and becomes a secondary water source which is valued by people.

The down feather processing wastewater mainly comes from a washing procedure, the down feather needs to be washed for 3 times in thickness and then for 7-8 times in fine washing, a proper amount of detergent and alkali, disinfectant, deodorant and disinfectant are added, and the down feather washing needs a large amount of tap water. The eiderdown cleaning wastewater contains fat, protein, detergent and a large amount of suspended matters. With the increase of the product yield and the higher and higher requirements of the international market on the product quality, the water consumption is greatly increased after 8 times of washing of the feathers. Therefore, the down feather wastewater is imperatively collected and recycled, so that the recycling of water resources is realized, and the water cost expenditure and the production cost of enterprises are reduced.

The existing down feather cleaning wastewater treatment process has the defects of low down feather recovery rate, inconvenient operation, high energy consumption, high manufacturing cost, high operation cost, unstable yielding water reaching enterprise production recycling and the like.

The combined type eiderdown cleaning wastewater recycling treatment technology combines the characteristics of mutual promotion and comprehensive treatment of various conventional treatment technologies, is mainly improved in pretreatment and advanced treatment, realizes the effects of high efficiency, economy, high eiderdown recovery rate, convenient operation and management and stable effluent reaching the standard, and is suitable for being widely popularized in the field of eiderdown cleaning wastewater recycling treatment.

SUMMERY OF THE UTILITY MODEL

The invention aims to solve the defects that the recovery rate of down feather is low, the operation is inconvenient and the treatment system cannot stably reach the standard in the prior art, and provides the combined type down feather cleaning wastewater recycling treatment device which is low in construction investment, good in treatment effect, convenient to operate and manage, high in down feather recovery rate and capable of stably meeting the requirements of enterprises on yielding water.

The technical scheme adopted by the invention is as follows:

a combined device for recycling and treating down feather cleaning wastewater comprises a water collecting well, a feather recycling machine, an adjusting tank, a first-level air flotation machine, an AO biochemical sedimentation tank, a second-level air flotation machine, a second-level air flotation water outlet well and a valveless filter which are sequentially connected, wherein the feather recycling machine is provided with a micro-porous screen with the size of 0.0750 mm-0.120 mm, and the AO biochemical sedimentation tank is internally filled with braid-type fillers.

Further, set up first elevator pump in the sump pit, the sump pit is connected with the feather recycling machine through first elevator pump to promote waste water to the feather recycling machine, the feather recycling machine is placed in the top of equalizing basin.

Furthermore, a second lifting pump is arranged in the second-stage air-flotation water outlet well, and the second-stage air-flotation water outlet well lifts the wastewater to the valveless filter through the second lifting pump.

Furthermore, the outlet water of the valveless filter is connected to an ultraviolet disinfection channel through a pipeline, and the outlet water of the ultraviolet disinfection channel is connected to a reuse water pool.

Furthermore, a reuse water pump and a backwashing pump are arranged in the reuse water tank.

Further, the AO biochemical sedimentation tank is provided with an aeration fan.

Furthermore, the AO biochemical sedimentation tank is connected with a sludge tank through a sludge pipeline, the sludge tank is connected with a belt type filter press through a sludge lifting pump, the water content of the treated sludge is reduced to below 80%, then the treated sludge is transported outside, and the belt type filter press is provided with a PAM dosing device.

Further, the primary air floatation machine is provided with a PAC dosing device.

Furthermore, a back flushing pipeline is arranged at the front end of the feather recycling machine, and a feather recycling machine port is arranged at the rear end of the feather recycling machine.

Furthermore, a submersible stirrer is arranged in the adjusting tank.

Further, still including the pond of keeping in, the produced emptying water of one-level air supporting machine, second grade air supporting machine and the produced backwash water of valveless filtering pond all get into the pond of keeping in through flowing automatically, the pond of keeping in is equipped with the pond elevator pump of keeping in, the pond elevator pump of keeping in connects the equalizing basin, and automatic taking out after certain liquid level is to the equalizing basin and further processing again.

The process of recycling and treating the eiderdown cleaning wastewater comprises the following steps:

down feather cleaning wastewater of an enterprise production line is introduced into the water collecting well through the open trench and the concealed pipe, and the water collecting well can also play a role in partially homogenizing water quality and water quantity while depositing sediment. The water in the collecting well is lifted to the feather recycling machine by a lifting pump, fine feathers are intercepted by a screen fixed on a roller of the recycling machine, and the wastewater flows out and is connected to the regulating tank through a pipeline. The bottom of the adjusting tank is provided with a submersible mixer, so that the sewage is fully and uniformly mixed in the tank body. The effluent of the adjusting tank enters an air flotation tank which mainly removes a large amount of micro suspended matters, grease and the like in the wastewater and plays a role of process insurance, and a coagulant is added into the air flotation tank when the quality of the wastewater is suddenly changed and the biological system is abnormal so as to reduce the load of subsequent biochemical treatment and ensure the normal operation of the subsequent biochemical treatment; scum generated by the air floatation tank automatically flows into a sludge tank.

The pre-treated sewage enters an AO biochemical sedimentation tank in the preorder. And the concentration of ammonia nitrogen and organic matters in the water body is further reduced by adopting a nitrification/denitrification (A/O) biological contact oxidation process. The A/O biological contact oxidation process is simple, no external carbon source is needed, the stock solution is used as the carbon source, the operation cost is low, the internal circulation is arranged, the organic matter in the stock water is used as the carbon source, the denitrification reaction is sufficient, and the denitrification residue is further removed after the aeration tank. The waste water is oxygenated by adopting an aeration mode, most organic matters in the water are degraded in the nitrification tank under the action of high-activity aerobic microorganisms, and meanwhile, ammonia nitrogen is oxidized into nitrate under the action of the nitrification microorganisms. The nitrate nitrogen flows back to the denitrification tank, and in an anoxic environment, denitrifying bacteria reduce the nitrate nitrogen into nitrogen by using a carbon source in water and discharge the nitrogen, thereby achieving the purpose of biological denitrification. The braid-type filler is arranged in the AO pool, so that good environmental conditions and hydraulic conditions are created for the growth and the propagation of various dominant strains, the biological processes such as degradation of organic matters, nitrification and denitrification of ammonia nitrogen and the like are kept in a high-efficiency reaction state, the mass transfer conditions and the separation effect of biochemical reaction are effectively improved, and the biodegradation efficiency is greatly improved. The biochemical system is provided with a secondary sedimentation tank for separating sludge and water from the biochemical sewage. And part of sludge in the secondary sedimentation tank flows back to the anoxic tank, and the rest sludge flows into the sludge tank.

In order to meet the recycling requirement, fine particle impurities in the water are further removed, and the transparency of the discharged water is improved. The effluent of the secondary sedimentation tank flows into the advanced treatment, firstly, secondary air flotation is carried out, whether the chemicals are added or not is determined according to the actual wastewater quality and the operation condition of a wastewater treatment station, and suspension and partial colloid pollutants in the wastewater are further removed in the secondary air flotation so as to ensure that the effluent meets the requirement of enterprise production water and reduce the backwashing frequency of subsequent filtering equipment; the secondary air flotation effluent enters a gravity type valveless filter through a secondary lift pump to remove residual fine particle impurities in the wastewater so as to improve the transparency of the effluent; the effluent of the valveless filter enters an ultraviolet disinfection channel, bacteria in the wastewater are killed by ultraviolet rays, and the effluent can flow into a reuse water pool to be lifted and reused by a pump to production after meeting the requirements of the standards of the discharge standards of pollutants of eiderdown industrial water (GB 21901-2008) Table 3. The emptying water produced by the two air flotation tanks and the back washing water produced by the valveless filter tank both enter a temporary storage tank through self-flowing, the temporary storage tank is provided with a submersible pump, and the emptying water and the back washing water are automatically pumped to an adjusting tank after reaching a certain liquid level for further treatment.

In the treatment process, physicochemical sludge and biochemical sludge are generated every day, and the sludge generated from the air flotation tank and the secondary sedimentation tank is collected to a sludge tank through a sludge pipe. Adding PAM flocculant into the concentrated sludge to make the sludge easier to be dewatered, dewatering the sludge by a belt type dewatering machine to form a sludge cake and transporting the sludge cake outside.

The beneficial effects of the utility model reside in that:

1) The utility model discloses can ensure sewage retrieval and utilization to production after strengthening preliminary treatment and advanced treatment.

2) The utility model relates to a feather retrieves machine adopts the sieve mesh size to do: 0.0750 mm-0.120 mm micropore screen cloth, and the size of the common filter screen of the feather scooping machine on the market is 0.2mm, so that the filter screen is more suitable for treating the down feather wastewater, more solid matters in the wastewater under closure can reach 90% for the removal rate of solid suspended matters, and the burden of subsequent sewage treatment is reduced while great benefits are brought to enterprises. The down feather recycling machine can be automatically cleaned through water level control, and is high in convenience. Meanwhile, the feather recycling machine is compact in design structure and can be directly placed above the adjusting tank, and secondary lifting is reduced.

3) The biochemical treatment system is provided with the braid type filler, so that the specific surface area is large, the adsorption capacity is strong, the film forming speed is high, the biological activity is high, the residual sludge amount is small, and the suspended matters in effluent are correspondingly reduced.

4) Compared with the method of only adopting the valveless filter, the advanced treatment method combining the two-stage air flotation and the valveless filter can better remove fine suspended substances in wastewater, so that the effluent is clearer and more transparent, and the backwashing frequency of the filter can be reduced. If special conditions such as sudden change of the production process, unsatisfactory biochemical treatment effect and the like occur, other pollutants in the wastewater can be removed by changing the dosing amount in the air flotation tank so as to ensure that the effluent can stably meet the water quality requirement of the production water of an enterprise.

Drawings

FIG. 1 is a schematic view of the present invention; in the figure, 1, a water collecting well, 2, a first lifting pump, 3, a feather recycling machine, 4, an adjusting tank, 5, a backwashing pipeline, 6, a feather recycling machine port, 7, a submersible mixer, 8, a primary air flotation machine, 9, a PAC dosing device, 10, an AO biochemical sedimentation tank, 11, braid type packing, 12, an aeration fan, 13, a secondary air flotation machine, 14, a secondary air flotation water outlet well, 15, a second lifting pump, 16, a valveless filter, 17, an ultraviolet disinfection channel, 18, a reuse water tank, 19, a reuse water pump, 20, a temporary storage tank, 21, a temporary storage tank lifting pump, 22, a sludge pipeline, 23, a sludge tank, 24, a sludge lifting pump, 25, a belt filter press, 26, a PAM dosing device, 27, a backwashing pump and a liquid level meter 28.

Detailed Description

As shown in fig. 1, the utility model discloses a sump pit 1, feather reclaimer 3, equalizing basin 4, one-level air supporting machine 8, AO biochemical sedimentation tank 10, second grade air supporting machine 13, second grade air supporting outlet well 14 and valveless filter 16 that connect gradually, feather reclaimer 3 disposes 0.0750mm ~ 0.120 mm's micropore screen cloth, pack braid formula filler 11 in AO biochemical sedimentation tank 10, set up first elevator pump 2 in the sump pit 1, sump pit 1 is connected with feather reclaimer 3 through first elevator pump 2 to promote waste water to feather reclaimer 3, the front end of feather reclaimer 3 sets up back flush pipeline 5, and the rear end sets up feather reclaimer mouth 6, feather reclaimer 3 places in the top of equalizing basin 4, sets up submersible mixer 7 in the equalizing basin 4; the primary air flotation machine 8 is provided with a PAC dosing device 9, the secondary air flotation water outlet well 14 is internally provided with a second lifting pump 15, the secondary air flotation water outlet well 14 lifts waste water to a valveless filter 16 through the second lifting pump 15, the effluent of the valveless filter 16 is connected to an ultraviolet disinfection canal 17 through a pipeline, the effluent of the ultraviolet disinfection canal 17 is connected to a reuse water tank 18, a reuse water pump 19 and a backwash pump 27 are arranged in the reuse water tank 18, the AO biochemical sedimentation tank 10 is provided with an aeration fan 12, the AO biochemical sedimentation tank 10 is also connected with a sludge tank 23 through a sludge pipeline 22, the sludge tank 23 is connected with a belt filter press 25 through a sludge lifting pump 24, and the belt filter press 25 is provided with a PAM dosing device 26; still include the pond 20 of keeping in, the pond 20 of keeping in is all passed through the flowing by oneself to the produced blow-down water of one-level air supporting machine 8, second grade air supporting machine 13 and the backwash water of valveless filter 16 production, the pond 20 of keeping in is equipped with the pond elevator pump 21 of keeping in, and the pond elevator pump 21 of keeping in is connected the equalizing basin, and automatic taking out to the equalizing basin after to certain liquid level is handled further.

The main implementation steps of the recycling treatment of the eiderdown cleaning wastewater are as follows:

(1) The down feather cleaning wastewater collected by a factory automatically flows into a water collecting well 1, a first lifting pump 2 arranged in the well is lifted to a feather recycling machine 3 by pressurization, fine feathers are intercepted by a stainless steel filter screen (the size of a sieve pore is 0.0750 mm-0.120 mm), and the filtered water without suspended matters enters an adjusting tank 4. A submersible mixer 7 is arranged in the adjusting tank 4, incoming water of each cleaning workshop is uniformly mixed in the tank and then automatically flows into the primary air flotation machine 8, and a PAC (programmable automation controller) dosing device 9 is used for dosing the primary air flotation machine 8 when the quality of wastewater changes suddenly and a biological system is abnormal, so that the load of subsequent biochemical treatment is reduced, and the normal operation of the subsequent biochemical treatment is ensured; the effluent of the first-stage air flotation machine 8 automatically flows into an AO biochemical sedimentation tank 10. An aeration fan 12 is adopted to aerate the tank to maintain the oxygen demand of the microorganisms. The effluent of the biochemical sedimentation tank automatically flows into a secondary air flotation machine 13, and suspended and partial colloid pollutants in the wastewater are further removed, so that the effluent meets the requirements of enterprise production water; the effluent of the secondary air flotation machine 13 goes to a secondary air flotation effluent well 14 and enters a valveless filter 16 through a second lift pump 15, and fine particle impurities remained in the wastewater are removed, so that the transparency of the effluent is improved; after entering an ultraviolet disinfection channel 17 for sterilization and disinfection, the normal effluent of the valveless filter 16 is discharged into a reuse water tank 18 and is lifted by a reuse pump 19 for reuse to production.

(2) The utility model discloses feather reclaimer stainless steel filter screen mesh size does: the filtering aperture of 0.0750 mm-0.120 mm is smaller than that of a conventional feather scooping machine by 0.2mm, so that the recovery rate of the feathers is improved, and the cleaned feathers are collected and recycled to be processed on production through a feather recycling machine port 6. For making the simple operation, realize dragging for the automatic backwash function of hair machine, set up level gauge 28 in the machine, when suspended solid gathers certain quantity in the cylinder of feather recycling machine, when the water level rose the high water level of settlement in the feather recycling machine 3, backwash pump 27 automatic start in the reuse water pond 18, it washs machine 3 cylinder filter screen through backwash water pipeline 5 to wash to wasing to the feather.

(3) The first-stage air flotation machine of the utility model is provided with a PAC dosing device 9, when the quality of inlet water is suddenly changed or a biochemical system is abnormal, the load of subsequent biochemical treatment is reduced, and the normal operation of the subsequent biochemical treatment is ensured;

(4) The utility model discloses braid formula filler 11 is filled to AO biochemical sedimentation tank 10, compares with traditional filler and more is favorable to the microorganism to hang the membrane and grows.

(5) The utility model discloses second grade air supporting machine can share PAC charge device 9 with one-level air supporting for suspension and partial colloid pollutant in the sewage after getting rid of biochemical treatment alleviate follow-up valveless filtering pond simultaneously and handle the load, reduce the frequency of backwash.

(6) The utility model discloses valveless filtering pond backwash water and one, the produced blow-down water of second grade air supporting machine flow in and keep in pond 20, and when the pond water accumulation reached a certain amount, promoted to preorder equalizing basin 4 by keeping in pond elevator pump 21 and further handled again.

(7) The utility model discloses the mud that one-level air supporting machine 8, second grade air supporting machine 13, AO biochemical sedimentation tank 10 produced passes through sludge pipe 22 and collects to sludge impoundment 23. The concentrated sludge is lifted to a belt filter press 25 by a sludge pump 24, and is added and conditioned by a PAM dosing device 26 and then is dehydrated to form a sludge cake for outward transportation.

(8) The utility model discloses the treatment effect is shown below:

it can be seen from the above table that the quality of water after the processing can satisfy the standard of "eiderdown industrial water pollutant discharge standard" (GB 21901-2008) table 3, show that the utility model discloses can be applicable to the retrieval and utilization of eiderdown cleaning wastewater and handle.

To sum up, the utility model discloses can solve among the prior art down recovery rate low, the system degree of automation is low, shock resistance is low and go out the unstable scheduling problem of water quality of water, have that the construction investment is low, the treatment effect is good, the working costs is low, degree of automation is high, the down recovery rate is high, go out water can stably reach advantages such as enterprise's retrieval and utilization standard, be fit for wideling popularize in the down trade.

Claims (10)

1. The utility model provides a modular eiderdown washing wastewater retrieval and utilization device of handling which characterized in that, is including sump pit, feather recovery machine, equalizing basin, one-level air supporting machine, AO biochemical sedimentation tank, second grade air supporting machine, second grade air supporting outlet well and the valveless filter that connects gradually, feather recovery machine configuration 0.0750mm ~ 0.120 mm's micropore screen cloth, pack braid formula filler in the AO biochemical sedimentation tank.

2. The combined down feather cleaning wastewater recycling device as claimed in claim 1, wherein a first lift pump is disposed in the water collecting well, the water collecting well is connected with a feather recycling machine through the first lift pump, and the feather recycling machine is disposed above the adjusting tank.

3. The combined down feather cleaning wastewater recycling device as claimed in claim 1, wherein a second lift pump is disposed in the secondary air-flotation water outlet well, and the secondary air-flotation water outlet well lifts the wastewater to the valveless filter through the second lift pump.

4. The combined type down feather cleaning wastewater recycling device as claimed in claim 1, wherein the outlet water of the valveless filter is connected to an ultraviolet disinfection channel through a pipeline, and the outlet water of the ultraviolet disinfection channel is connected to a recycling water pool.

5. The combined down feather cleaning wastewater recycling device as claimed in claim 4, wherein a recycling water pump and a backwashing pump are arranged in the recycling water tank.

6. The combined type down feather cleaning wastewater recycling device as claimed in claim 1, wherein said AO biochemical sedimentation tank is equipped with an aeration fan; the primary air floatation machine is provided with a PAC dosing device.

7. The combined type down feather cleaning wastewater recycling device as claimed in claim 1, wherein the AO biochemical sedimentation tank is further connected with a sludge tank through a sludge pipeline, the sludge tank is connected with a belt filter press through a sludge lifting pump, and the belt filter press is provided with a PAM dosing device.

8. The combined type down feather cleaning wastewater recycling device as claimed in claim 1, wherein a back flushing pipeline is arranged at the front end of the feather recycling machine, and a feather recycling machine port is arranged at the rear end of the feather recycling machine.

9. The combined type down feather cleaning wastewater recycling device as claimed in claim 1, wherein a submersible mixer is arranged in the adjusting tank.

10. The combined type down feather cleaning wastewater recycling device as claimed in claim 1, further comprising a temporary storage tank, wherein emptying water generated by the primary air flotation machine and the secondary air flotation machine and backwashing water generated by the valveless filter tank all automatically flow into the temporary storage tank, the temporary storage tank is provided with a temporary storage tank lift pump, and the temporary storage tank lift pump is connected with the regulating tank.

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