CN210635848U - High-efficient denitrogenation system of hair products waste water - Google Patents
High-efficient denitrogenation system of hair products waste water Download PDFInfo
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- CN210635848U CN210635848U CN201920879166.3U CN201920879166U CN210635848U CN 210635848 U CN210635848 U CN 210635848U CN 201920879166 U CN201920879166 U CN 201920879166U CN 210635848 U CN210635848 U CN 210635848U
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Abstract
The utility model discloses a high-efficiency denitrification system and a high-efficiency denitrification process for hair product wastewater, which realize the comprehensive treatment of wastewater, waste gas and sludge, greatly improve the treatment efficiency of the hair product wastewater, reduce the treatment cost of the hair product wastewater, comprehensively consider the treatment of peculiar smell gas and solid waste generated in the operation process of a wastewater treatment facility, and avoid secondary pollution; selecting a high-efficiency dissolved air flotation machine, adjusting the pH value of the wastewater, and arranging a dosing device for dosing a decolorizing agent and a flocculating agent, so that the chroma of the wastewater is reduced, the impact on a subsequent denitrification device is reduced, and the stable operation of the system is ensured; a waste gas treatment unit is arranged to collect and purify waste gases such as hydrogen sulfide and methane generated in the operation process of the waste water treatment equipment and finally discharge the waste gases up to the standard at high altitude; the scum and the excess sludge generated in the operation process of the wastewater treatment facility are dehydrated, and the dried sludge is transported outside.
Description
Technical Field
The utility model relates to a water treatment field especially relates to a high-efficient denitrogenation system of hair products waste water.
Background
The wig product is made by using human hair as a raw material through processes of acid washing, water washing, decoloration, dyeing, finishing washing and the like, the wastewater comes from the processes of acid washing, water washing, dyeing and the like, and contains a large amount of substances such as sulfuric acid, strong oxidant, ammonia water, surfactant and the like, and has the characteristics of large acidity, high chroma, poor biodegradability, high total nitrogen concentration, large water quality change and the like. The conventional hair product wastewater treatment process generally adopts an anaerobic and aerobic combined process, improves the biodegradability of wastewater, neglects the decolorization pretreatment and enhanced denitrification processes, causes the indexes of effluent ammonia nitrogen and total nitrogen to be not up to the standard, and becomes an important factor restricting the normal production of hair product enterprises.
Therefore, aiming at the characteristics of high chromaticity, high ammonia nitrogen value and the like of the hair product wastewater, the selection of a treatment process with high removal efficiency and stable effluent reaching the standard and a matched system thereof are very important.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a send out high-efficient denitrogenation system of goods waste water and high-efficient denitrogenation technology, to sending out characteristics such as goods processing waste water contains acid-base nature, high colourity, strengthen preliminary treatment such as neutralization, decoloration, reduce the impact that water quality change is to follow-up biochemical unit.
The utility model discloses a further purpose is according to the high ammonia nitrogen value characteristics of waste water, selects to strengthen biochemical denitrogenation technology, optimizes the technological parameter.
The utility model discloses a another further purpose is to the poor characteristics of waste water biodegradability, adjusts waste water nutrition proportion, improves the microbial activity.
The utility model discloses a further purpose is the gaseous, the solid waste processing of peculiar smell that the integrated consideration waste water treatment facility operation in-process produced, avoids secondary pollution.
In order to realize above-mentioned at least one purpose, the utility model provides a high-efficient denitrogenation system of hair products waste water, include:
a wastewater treatment unit comprising
The device comprises a regulating tank, wherein a wastewater pre-filtering unit is arranged at a water inlet of the regulating tank, and production wastewater flows into the regulating tank after being filtered by the wastewater pre-filtering unit through a pipeline A;
the perforating aeration system is arranged in the regulating tank and is used for stirring and balancing water quality and water quantity;
the lifting pump is arranged in the regulating tank, is communicated with a water inlet of the wastewater pretreatment device through a pipeline B, and is used for lifting the wastewater after aeration in the regulating tank into the wastewater pretreatment device;
the chemical adding device is connected to the reaction area of the wastewater pretreatment device through a pipeline C and is used for adding a water treatment agent for adjusting the pH, decoloring and flocculating action of the wastewater;
the wastewater pretreatment device is used for matching with an input water treatment agent to realize pH adjustment and decoloration of wastewater and separation of scum and the wastewater, a water outlet of the wastewater pretreatment device is communicated with a water inlet of the denitrification device through a pipeline D, the pretreated wastewater automatically flows to the denitrification device, and a residue discharge port of the wastewater pretreatment device is communicated with a connector of a sludge concentration tank through a pipeline E;
the denitrification device is used for denitrifying the pretreated wastewater and precipitating sludge in the pretreated wastewater to form standard-reaching wastewater, a water outlet of the denitrification device is communicated with a municipal pipe network through a pipeline G, the standard-reaching wastewater is conveyed to the municipal pipe network through the pipeline G, and a sludge discharge pump is arranged in the denitrification device and communicated with an interface of a sludge concentration tank through a pipeline F and used for lifting the sludge in the denitrification device into the sludge concentration tank;
a sludge treatment unit comprising
The sludge concentration tank is used for storing scum and sludge;
the sludge feeding pump is connected with the sludge discharge port of the sludge concentration tank through a pipeline H at the feeding end, and is connected with the sludge dewatering device through a pipeline H at the discharging end, so that scum and sludge in the sludge concentration tank are conveyed to the sludge dewatering device;
the sludge dewatering device is used for dewatering the scum and the sludge which are fed in to form dried sludge and seepage;
the waste gas treatment unit comprises a plurality of waste gas collecting covers, and the collecting covers are covered on the regulating tank, the denitrification device and the sludge concentration tank and are used for collecting waste gas; a plurality of the gas outlet of waste gas collection lid is passed through pipeline I and is connected with spray column, photocatalytic oxidation device, draught fan, aiutage in proper order, and waste gas carries to spray column, photocatalytic oxidation device in proper order under the draught fan effect, carries out waste gas purification treatment, discharges through the aiutage high altitude after the processing.
Further, the wastewater pre-filtering unit comprises a grid channel and a screen, wherein the screen is a mesh SUS304 screen, and the screen is divided into two paths.
Further, the dewatering device is a plate-and-frame filter press, a seepage outlet is formed in the sludge dewatering device and connected with the regulating tank through a pipeline J, and seepage is enabled to flow back to the regulating tank.
Further, the wastewater pretreatment device is a dissolved air flotation machine, the dissolved air flotation machine comprises a slag scraping device, and formed scum is collected by the slag scraping device and is sent to a sludge concentration tank.
Further, the wastewater pretreatment device adopts a sedimentation tank.
Further, the induced draft fan is a centrifugal fan.
Further, the denitrification device comprises an AO biochemical pool and a secondary sedimentation pool, wherein the AO biochemical pool comprises an anoxic pool and an aerobic pool;
the water inlet of the denitrification device is arranged in the anoxic tank, biological fillers are arranged in the anoxic tank, and a perforated aeration stirring system is arranged at the bottom of the anoxic tank;
the aerobic tank is internally provided with biological fillers, and the bottom of the aerobic tank is provided with a rotary mixing aerator;
a nitrifying liquid reflux pump is arranged in the aerobic tank and is communicated with the anoxic tank through a pipeline K, so that nitrifying liquid is refluxed to the anoxic tank;
the aerobic tank is communicated with the secondary sedimentation tank through a pipeline L, so that effluent automatically flows to the secondary sedimentation tank;
the water outlet is arranged in the secondary sedimentation tank and communicated with a municipal pipe network through a pipeline G, so that the wastewater reaching the standard is conveyed to the municipal pipe network through the pipeline G, a sludge discharge pump is arranged in the secondary sedimentation tank and communicated with an interface of a sludge concentration tank through a pipeline F for lifting sludge in the secondary sedimentation tank into the sludge concentration tank, and a sludge reflux pump is also arranged in the secondary sedimentation tank and used for refluxing the sludge to the anoxic tank through a pipeline M;
further, the secondary sedimentation tank is a vertical flow tank with the surface load of 0.7m3/(m2·h)。
A high-efficiency denitrification process for hair product wastewater comprises a wastewater treatment process, a waste gas treatment process and a sludge treatment process;
the wastewater treatment process comprises the following steps:
the first step is as follows: filtering the workshop wastewater through a grid and a screen, filtering to remove impurities such as hairs, enabling the filtered wastewater to enter a regulating tank, balancing the water quality and the water quantity through aeration and stirring of a perforation aeration system, and realizing primary treatment of the wastewater in the regulating tank;
secondly, lifting the primarily treated wastewater to a dissolved air flotation machine through a lift pump, adding alkali liquor to adjust the pH value to be about 10, adding 1.5 per mill of decolorizing agent and 2 per mill of flocculating agent to enable insoluble pollutants in the wastewater to form flocs, placing the flocs on the wastewater through a dissolved air system in the dissolved air flotation machine to form scum, scraping the scum through a scum scraping device in the dissolved air flotation machine and sending the scum into a sludge concentration tank, and enabling the wastewater to automatically flow to an AO biochemical tank;
thirdly, the wastewater is treated by anoxic and aerobic microorganisms in an AO biochemical pool, the sludge concentration is controlled to be 3000mg/L, and the denitrification load is controlled to be 0.02kgNO3The concentration of N/kgMLSS.d and the concentration of C/N are controlled to be 5.7, and the treated wastewater enters a secondary sedimentation tank;
fourthly, the waste water stays in the secondary sedimentation tank for at least 2 hours, the aged microorganisms in the water are removed through the gravity sedimentation effect, and the waste water reaching the standard is discharged into a municipal pipe network;
the waste gas treatment process comprises the following steps:
firstly, collecting an adjusting tank, an AO biochemical tank and a sludge concentration tank which generate waste gas through a waste gas collecting cover;
secondly, conveying the waste gas to a spray tower and a photocatalytic oxidation device under the action of a draught fan, and absorbing and degrading the waste gas such as hydrogen sulfide, methane and the like;
thirdly, discharging the treated waste gas reaching the standard in the upper air through an exhaust funnel;
the sludge treatment process comprises the following steps:
firstly, storing scum and residual sludge in a sludge concentration tank, and conveying the scum and the residual sludge to plate-and-frame filter pressing equipment through a sludge feeding pump for drying treatment;
and step two, the dehydrated sludge is transported to qualified enterprises for advanced treatment, and the leachate flows back to the regulating tank.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the comprehensive treatment of waste water, waste gas and sludge greatly improves the treatment efficiency of the hair product waste water, reduces the treatment cost of the hair product waste water, comprehensively considers the treatment of peculiar smell gas and solid waste generated in the operation process of a waste water treatment facility, and avoids secondary pollution.
2. Selecting a dissolved air flotation machine, adjusting the pH value of the wastewater, and arranging a dosing device for adding a decolorizing agent, a flocculating agent and the like, so as to reduce the chroma of the wastewater, reduce the impact on a subsequent denitrification device and ensure the stable operation of the system;
3. the denitrification device adopts an anoxic/aerobic process, utilizes the nitrification and denitrification of microorganisms through an internal circulation system consisting of a nitrification liquid reflux pump and a pipeline K, degrades ammonia nitrogen, total nitrogen and organic pollutants in the wastewater, optimizes process parameters such as dissolved oxygen, alkalinity, retention time, sludge load, nutrient ratio and the like, and improves the activity of the microorganisms;
4. through the arrangement of the waste gas treatment unit, waste gas such as hydrogen sulfide, methane and the like generated in the operation process of the waste water treatment facility is collected and purified, and finally the waste gas reaching the standard is discharged in high altitude;
5. the scum and the excess sludge generated in the operation process of the wastewater treatment facility are dehydrated, and the dried sludge is transported outside.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of the overall structure according to the present invention.
Detailed Description
The efficient denitrification system for the hair product wastewater shown in figure 1 is characterized in that: comprises that
A high-efficiency denitrification system for hair product wastewater comprises:
a wastewater treatment unit comprising:
the adjusting tank 3 is provided with a wastewater pre-filtering unit at a water inlet, and production wastewater is filtered by the wastewater pre-filtering unit through a pipeline A and then flows into the adjusting tank automatically; preferably, the wastewater pre-filtration unit comprises a grid ditch 2 and a screen 1, the screen is preferably a 10-mesh SUS304 screen, and the screen is preferably two-pass;
the perforating aeration system 20 is arranged in the adjusting tank and is used for stirring and balancing water quality and water quantity;
the lifting pump 4 is arranged in the adjusting tank, is communicated with a water inlet 5a of the wastewater pretreatment device through a pipeline B, and is used for lifting the aerated wastewater in the adjusting tank into the wastewater pretreatment device 5;
the chemical adding device 6 is connected to the reaction zone 5b of the wastewater pretreatment device through a pipeline C and is used for adding a water treatment agent for adjusting the pH, decoloring and flocculating the wastewater, and the water treatment agent comprises but is not limited to alkali liquor, a decoloring agent and a flocculating agent;
the wastewater pretreatment device 5 is used for matching with an input water treatment agent to realize pH adjustment and decoloration of wastewater and separation of scum and wastewater, a water outlet 5f of the wastewater pretreatment device is communicated with a water inlet 8a of a denitrification device through a pipeline D, the pretreated wastewater automatically flows to the denitrification device, and a slag discharge port 5C of the wastewater pretreatment device is communicated with a connector 17a of a sludge concentration tank through a pipeline E;
the system comprises a denitrification device, a water outlet 12a of the denitrification device, a municipal pipe network and a sludge pump 27, wherein the denitrification device is used for denitrifying pretreated wastewater and precipitating sludge in the pretreated wastewater to form standard wastewater, the water outlet 12a of the denitrification device is communicated with the municipal pipe network through a pipeline G to realize that the standard wastewater is conveyed to the municipal pipe network through the pipeline G, and the sludge pump is communicated with a connector 17a of a sludge concentration tank through a pipeline F and is used for lifting the sludge in the denitrification device into the sludge concentration tank;
a sludge treatment unit comprising
A sludge thickener 17 for storing scum and sludge;
a sludge feeding pump 18, wherein a feeding end 18a is connected with a sludge discharge port 17b of the sludge concentration tank through a pipeline H, and a discharging end 18b is connected with a sludge dewatering device through the pipeline H, so that scum and sludge in the sludge concentration tank are conveyed to the sludge dewatering device;
a sludge dewatering device 19 for dewatering the scum and sludge fed in to form dried sludge and percolate; preferably, the dewatering device can be a plate-and-frame filter press, the sludge dewatering device is provided with a seepage outlet 19a, and the seepage outlet is connected with the regulating tank through a pipeline J to realize seepage backflow to the regulating tank.
The waste gas treatment unit comprises a plurality of waste gas collecting covers 21, and the collecting covers are covered on the regulating tank, the denitrification device and the sludge concentration tank and are used for collecting waste gas; a plurality of the gas outlet of waste gas collection lid is connected with spray column 13, photocatalytic oxidation device 14, draught fan 15, aiutage 16 in proper order through pipeline I, and waste gas carries to spray column, photocatalytic oxidation device in proper order under the draught fan effect, carries out waste gas purification treatment, discharges through the aiutage high altitude after the processing. Preferably, the induced draft fan is a centrifugal fan.
Further, the wastewater pretreatment device can be any one of a dissolved air flotation machine and a sedimentation tank. In the scheme, a high-efficiency dissolved air floatation machine is preferably selected; wherein, the dissolved air flotation machine comprises a slag scraping device 5d, and formed scum is collected by the slag scraping device and is sent to a sludge concentration tank 17.
Further, the denitrification device comprises an AO biochemical pool and a secondary sedimentation pool 12, wherein the AO biochemical pool comprises an anoxic pool 8 and an aerobic pool 9;
the water inlet 8a of the denitrification device is arranged in the anoxic tank, biological fillers are arranged in the anoxic tank, and a perforated aeration stirring system 26 is arranged at the bottom of the anoxic tank;
the aerobic tank is internally provided with biological fillers, and the bottom of the aerobic tank is provided with a rotary mixing aerator 10;
a nitrifying liquid reflux pump 11 is arranged in the aerobic tank and is communicated with the anoxic tank through a pipeline K, so that nitrifying liquid is refluxed to the anoxic tank;
the aerobic tank is communicated with the secondary sedimentation tank through a pipeline L, so that effluent automatically flows to the secondary sedimentation tank;
delivery port 12a is located two heavy ponds through pipeline G and municipal pipe network intercommunication, realize waste water up to standard and pass through pipeline G delivers to the municipal pipe network, be equipped with sludge pump 27 in two heavy ponds, sludge pump passes through pipeline F and the interface 17a switch-on of sludge concentration pond for promote the mud among the denitrification facility to sludge concentration pond in, still be equipped with sludge reflux pump 28(0.5 times flow) in two heavy ponds and manage way M backward flow mud to oxygen deficiency pond.
Further, the secondary sedimentation tank is a vertical flow tank with the surface load of 0.7m3/(m2·h)。
A high-efficiency denitrification process for hair product wastewater comprises a wastewater treatment process, a waste gas treatment process and a sludge treatment process;
the wastewater treatment process comprises the following steps:
the first step is as follows: filtering the workshop wastewater through a grid and a screen, filtering to remove impurities such as hairs, enabling the filtered wastewater to enter a regulating tank, balancing the water quality and the water quantity through aeration and stirring of a perforation aeration system, and realizing primary treatment of the wastewater in the regulating tank;
secondly, lifting the primarily treated wastewater to a dissolved air flotation machine through a lift pump, adding alkali liquor to adjust the pH value to be about 10, adding 1.5 per mill of decolorizing agent and 2 per mill of flocculating agent to enable insoluble pollutants in the wastewater to form flocs, placing the flocs on the wastewater through a dissolved air system in the dissolved air flotation machine to form scum, scraping the scum through a scum scraping device in the dissolved air flotation machine and sending the scum into a sludge concentration tank, and enabling the wastewater to automatically flow to an AO biochemical tank;
thirdly, the wastewater is treated by anoxic and aerobic microorganisms in an AO biochemical pool, the sludge concentration is controlled to be 3000mg/L, and the denitrification load is controlled to be 0.02kgNO3The concentration of N/kgMLSS.d and the concentration of C/N are controlled to be 5.7, and the treated wastewater enters a secondary sedimentation tank;
fourthly, the waste water stays in the secondary sedimentation tank for at least 2 hours, the aged microorganisms in the water are removed through the gravity sedimentation effect, and the waste water reaching the standard is discharged into a municipal pipe network;
the waste gas treatment process comprises the following steps:
firstly, collecting an adjusting tank, an AO biochemical tank and a sludge concentration tank which generate waste gas through a waste gas collecting cover;
secondly, conveying the waste gas to a spray tower and a photocatalytic oxidation device under the action of a draught fan, and absorbing and degrading the waste gas such as hydrogen sulfide, methane and the like;
thirdly, discharging the treated waste gas reaching the standard in the upper air through an exhaust funnel;
the sludge treatment process comprises the following steps:
firstly, storing scum and residual sludge in a sludge concentration tank, and conveying the scum and the residual sludge to plate-and-frame filter pressing equipment through a sludge feeding pump for drying treatment;
and step two, the dehydrated sludge is transported to qualified enterprises for advanced treatment, and the leachate flows back to the regulating tank.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (8)
1. The utility model provides a high-efficient denitrogenation system of hair products waste water which characterized in that: comprises that
A wastewater treatment unit comprising
The device comprises a regulating tank (3), wherein a wastewater pre-filtering unit is arranged at a water inlet of the regulating tank, and production wastewater flows into the regulating tank after being filtered by the wastewater pre-filtering unit through a pipeline A;
the perforating aeration system (20) is arranged in the adjusting tank and is used for stirring and balancing water quality and water quantity;
the lifting pump (4) is arranged in the adjusting tank, is communicated with a water inlet (5a) of the wastewater pretreatment device through a pipeline B, and is used for lifting the wastewater after aeration in the adjusting tank to the wastewater pretreatment device (5);
the chemical adding device (6) is connected to the reaction area (5b) of the wastewater pretreatment device through a pipeline C and is used for adding a water treatment agent for adjusting the pH value, decoloring and flocculating the wastewater;
the sewage treatment device comprises a sewage pretreatment device (5) and a sewage treatment device, wherein the sewage pretreatment device is used for matching with an input water treatment agent to realize pH adjustment and decoloration of the sewage and realize separation of scum and the sewage, a water outlet (5f) of the sewage treatment device is communicated with a water inlet (8a) of a denitrification device through a pipeline D, the pretreated sewage automatically flows to the denitrification device, and a slag discharge port (5C) of the sewage treatment device is communicated with a connector (17a) of a sludge concentration tank through a pipeline E;
the system comprises a denitrification device, a water outlet (12a) of the denitrification device is communicated with a municipal pipe network through a pipeline G, so that the wastewater reaching the standard is conveyed to the municipal pipe network through the pipeline G, the denitrification device is provided with a sludge pump (27), and the sludge pump is communicated with an interface (17a) of a sludge concentration tank through a pipeline F and is used for lifting sludge in the denitrification device into the sludge concentration tank;
a sludge treatment unit comprising
A sludge thickener (17) for storing scum and sludge;
the sludge feeding pump (18) is connected with a sludge discharge port (17b) of the sludge concentration tank through a pipeline H at a feeding end (18a), and is connected with the sludge dewatering device through a pipeline H at a discharging end (18b), so that scum and sludge in the sludge concentration tank are conveyed to the sludge dewatering device;
a sludge dewatering device (19) for dewatering the scum and sludge fed in to form dried sludge and percolate;
the waste gas treatment unit comprises a plurality of waste gas collecting covers (21), and the collecting covers are covered on the regulating tank, the denitrification device and the sludge concentration tank and are used for collecting waste gas; a plurality of the gas outlet of lid is collected to waste gas is passed through pipeline I and is connected with spray column (13), photocatalytic oxidation device (14), draught fan (15), aiutage (16) in proper order, and waste gas carries in proper order to spray column, photocatalytic oxidation device under the draught fan effect, carries out waste gas purification and handles, discharges through the aiutage high altitude after the processing.
2. The system for highly efficient denitrification of wastewater according to claim 1, wherein: the wastewater pre-filtering unit comprises a grid channel (2) and a screen (1), wherein the screen is a 10-mesh SUS304 screen, and the screen is divided into two paths.
3. The system for highly efficient denitrification of wastewater according to claim 1, wherein: the dewatering device is a plate-and-frame filter press, a seepage outlet (19a) is formed in the sludge dewatering device, and the seepage outlet is connected with the regulating tank through a pipeline J to realize seepage backflow to the regulating tank.
4. The efficient denitrification system for hair product wastewater of claim 1, wherein: the wastewater pretreatment device is a dissolved air flotation machine which comprises a slag scraping device (5d), and formed scum is discharged into a sludge concentration tank (17) through a scum discharge port (5C).
5. The efficient denitrification system for hair product wastewater of claim 1, wherein: the wastewater pretreatment device adopts a sedimentation tank.
6. The system for highly efficient denitrification of wastewater according to claim 1, wherein: the induced draft fan is a centrifugal fan.
7. The system for highly efficient denitrification of wastewater according to claim 1, wherein: the denitrification device comprises an AO biochemical pool and a secondary sedimentation pool (12), wherein the AO biochemical pool comprises an anoxic pool (8) and an aerobic pool (9);
the water inlet of the denitrification device is arranged in the anoxic tank, biological fillers are arranged in the anoxic tank, and a perforated aeration stirring system (26) is arranged at the bottom of the anoxic tank;
the aerobic tank is internally provided with biological fillers, and the bottom of the aerobic tank is provided with a rotary mixing aerator (10);
a nitrifying liquid reflux pump (11) is arranged in the aerobic tank and is communicated with the anoxic tank through a pipeline K, so that nitrifying liquid is refluxed to the anoxic tank;
the aerobic tank is communicated with the secondary sedimentation tank through a pipeline L, so that effluent automatically flows to the secondary sedimentation tank;
delivery port (12a) are located two heavy ponds through pipeline G and municipal pipe network intercommunication, realize waste water up to standard and pass through pipeline G delivers to the municipal pipe network, be equipped with sludge discharge pump (27) in two heavy ponds, sludge discharge pump passes through interface (17a) switch-on of pipeline F and sludge concentration tank for promote the mud in two heavy ponds to sludge concentration tank, still be equipped with sludge reflux pump (28) in two heavy ponds, manage and say M backward flow mud to oxygen deficiency pond.
8. The system for highly efficient denitrification of wastewater according to claim 7, wherein:the secondary sedimentation tank is a vertical flow tank with the surface load of 0.7m3/(m2·h)。
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| CN110104908A (en) * | 2019-06-12 | 2019-08-09 | 青岛千盛环保科技有限公司 | A kind of hair product waste water efficient denitrification system and efficient denitrification technique |
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| CN110104908A (en) * | 2019-06-12 | 2019-08-09 | 青岛千盛环保科技有限公司 | A kind of hair product waste water efficient denitrification system and efficient denitrification technique |
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