CN210736481U - Advanced treatment system for comprehensive wastewater containing triethylamine - Google Patents
Advanced treatment system for comprehensive wastewater containing triethylamine Download PDFInfo
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- CN210736481U CN210736481U CN201921604344.8U CN201921604344U CN210736481U CN 210736481 U CN210736481 U CN 210736481U CN 201921604344 U CN201921604344 U CN 201921604344U CN 210736481 U CN210736481 U CN 210736481U
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Abstract
The utility model belongs to the technical field of waste water treatment, a contain advanced treatment system of triethylamine comprehensive waste water is related to. The system specifically is that the waste water collecting tank passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting tank, the condensate collecting tank passes through pipe connection to comprehensive equalizing basin, comprehensive equalizing basin passes through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic tank of one-level, the aerobic tank of one-level passes through pipe connection to buffer pool, buffer pool passes through pipe connection to the secondary pond of hydrolysising, the secondary pond of hydrolysising passes through pipe connection to the aerobic tank of second grade, the aerobic tank of second grade passes through pipe connection to the coagulating sedimentation tank, the coagulating sedimentation tank passes through pipe connection to. The utility model discloses combine multiple-effect evaporation system, hydrolysis, good oxygen, deposit, filtration technology, carried out advanced treatment to containing triethylamine comprehensive waste water, the play water COD of final technology is less than or equal to 45 mg/L.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, a contain advanced treatment system of triethylamine comprehensive waste water is related to.
Background
Triethylamine is an important chemical raw material and can be used as a solvent, a catalyst and a raw material in the organic synthesis industry. The production system can generate high-concentration triethylamine production wastewater, the main components of which comprise molecular sieves, silicon dioxide, triethylamine, phosphoric acid and the like, and sewage such as domestic sewage, circulating water drainage and the like is generated along with the production of the high-concentration triethylamine production wastewater. The triethylamine-containing wastewater has high COD content, complex components, poor biodegradability, biological inhibition and great harm to the environment caused by direct discharge. For example, the sewage generated in the production process of the meropenem branched chain contains sodium chloride, potassium chloride, a phase transfer catalyst tetrabutylammonium bromide, extracting agents of ethyl acetate and dichloromethane, a synthetic by-product sodium methanesulfonate and the like besides triethylamine. The similar triethylamine hydrochloride-containing wastewater is treated by adopting the traditional alkali separation and special strain biochemical methods, the problems of complex process, higher cost, over 100mg/L COD content in the treated water and the like exist, the method is difficult to find general application, and the treated COD content meets the regulation of Integrated wastewater discharge Standard (GB 8978-1996). With the increasingly severe environmental situation and the increasingly tense water resources, the problem of wastewater discharge needs to be solved urgently, and the industrial wastewater discharge standard is increasingly strict. Therefore, a system and a method for advanced treatment of triethylamine-containing wastewater are urgently needed to be developed.
Disclosure of Invention
An object of the utility model is to provide a contain advanced treatment system of triethylamine integrated waste water, it is complicated to solve the technology that contains triethylamine integrated waste water treatment among the prior art, and the cost is higher, and handles the aquatic COD content of back aquatic and still above the 100mg L scheduling problem.
The utility model discloses an implementation process as follows:
an advanced treatment system for triethylamine-containing comprehensive wastewater comprises a wastewater collection tank, a multi-effect evaporation system, a condensate collection tank, a comprehensive regulation tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system;
the waste water collecting tank passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting tank, the condensate collecting tank passes through pipe connection to the integrated equalizing basin, the integrated equalizing basin passes through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic tank of one-level, the aerobic tank of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade pond of hydrolysising passes through pipe connection to the aerobic tank of second grade, the aerobic tank of second grade passes through pipe connection to the coagulating sedimentation tank, the coagulating sedimentation tank passes through pipe connection to filtration system, finally goes out.
Further, conveying the triethylamine-containing comprehensive wastewater to a wastewater collection pool through a pipeline; the comprehensive adjusting tank can be also connected with a domestic sewage pipeline and a circulating water drainage pipeline, and the comprehensive adjusting tank mixes the effluent from the condensate collecting tank with domestic sewage and circulating water drainage.
And the multi-effect evaporation system transports the waste slurry generated by the multi-effect evaporation system to the evaporation slag pool through a pipeline branch.
Furthermore, the primary aerobic tank is also provided with a pipeline first branch and a pipeline second branch, the primary aerobic tank is connected to the primary hydrolysis tank through the pipeline first branch for sludge backflow, and the primary aerobic tank is connected to the secondary hydrolysis tank through the pipeline second branch for periodic sludge supplementation; the advanced treatment system for the triethylamine-containing comprehensive wastewater further comprises a sludge tank, wherein a pipeline three-branch is further arranged in the first-stage aerobic tank, the first-stage aerobic tank is connected to the sludge tank through the pipeline three-branch, redundant sludge in the first-stage aerobic tank is conveyed to the sludge tank, the coagulating sedimentation tank is connected to the sludge tank through a pipeline branch, sludge in the coagulating sedimentation tank is conveyed to the sludge tank, and the sludge tank conveys the sludge to the next sludge treatment system for sludge treatment.
The primary aerobic tank is connected with the first blast aerator, and the first blast aerator is used for blast aeration of the primary aerobic tank; the second-stage aerobic tank is connected with a second blast aerator, and the second blast aerator is used for blast aeration of the second-stage aerobic tank.
Further, the multi-effect evaporation system is 3 effects; the filtration system may be a multi-media filter; the primary hydrolysis tank and the secondary hydrolysis tank can be hydrolysis acidification tanks with or without filler; the primary aerobic tank can be an SBR process or a CASS process; the secondary aerobic tank can be a contact oxidation process.
The method for treating the triethylamine-containing comprehensive wastewater by using the advanced treatment system for the triethylamine-containing comprehensive wastewater comprises the following steps:
(1) conveying the triethylamine-containing comprehensive wastewater to a wastewater collection pool through a pipeline, discharging water from the wastewater collection pool, and allowing the water to enter a multi-effect evaporation system to remove most organic pollutants, total phosphorus and solid pollutants in the water, allowing the discharged water from the multi-effect evaporation system to enter a condensate collection pool, transporting waste slurry generated by the multi-effect evaporation system outwards, and allowing the discharged water from the condensate collection pool to enter a comprehensive regulation pool;
(2) the water discharged from the comprehensive adjusting tank enters a primary hydrolysis tank, the primary hydrolysis tank contains sludge and hydrolytic bacteria and acidifying bacteria cultured in the sludge, and macromolecular substances which are difficult to biodegrade in the water are converted into micromolecular substances which are easy to biodegrade by the hydrolytic bacteria and the acidifying bacteria;
(3) the effluent of the primary hydrolysis tank enters a primary aerobic tank, the primary aerobic tank contains sludge and aerobic microorganisms cultured in the sludge, and the aerobic microorganisms are utilized to decompose organic pollutants in the water into inorganic matters so as to remove the organic pollutants in the water;
(4) the effluent of the first-stage aerobic tank enters a buffer tank, the effluent of the buffer tank enters a second-stage hydrolysis tank, the second-stage hydrolysis tank contains sludge and hydrolytic bacteria and acidifying bacteria cultured in the sludge, and the hydrolytic bacteria and the acidifying bacteria are secondarily utilized to convert macromolecular substances which are difficult to biodegrade in water into micromolecular substances which are easy to biodegrade;
(5) the effluent of the secondary hydrolysis tank enters a secondary aerobic tank, the secondary aerobic tank contains sludge and aerobic microorganisms cultured in the sludge, and the aerobic microorganisms are secondarily utilized to decompose organic pollutants in the water into inorganic matters so as to remove the organic pollutants in the water;
(6) the effluent of the secondary aerobic tank enters a coagulating sedimentation tank, and a flocculating agent is added to remove fine suspended pollutants in the water; the COD of the effluent of the coagulating sedimentation tank after passing through a filtering system is less than or equal to 45 mg/L.
Further, a part of sludge in the primary aerobic tank flows back to the primary hydrolysis tank to supplement the sludge in the primary hydrolysis tank; conveying a part of sludge in the primary aerobic tank to a secondary hydrolysis tank to supplement the sludge in the secondary hydrolysis tank; conveying the excess sludge in the primary aerobic tank to a sludge tank; conveying the sludge in the coagulating sedimentation tank to a sludge tank; and conveying the sludge in the sludge tank to a next sludge treatment system for treating the sludge.
Further, the waste slurry generated by the multi-effect evaporation system in the step (1) is transported to an evaporation slag pool; domestic wastewater and circulating water drainage enter the comprehensive regulating tank through a pipeline and are mixed with the effluent of the condensate collecting tank; a first blast aerator can be arranged in the step (3) to aerate the primary aerobic tank; a second blast aerator can be arranged in the step (5) to aerate the secondary aerobic tank; and (4) adding polyaluminium chloride and polyacrylamide as the flocculating agent in the step (6), specifically adding the polyaluminium chloride, mixing for 2min, adding the polyacrylamide, and removing fine suspended pollutants in water through the actions of mixing, flocculating and precipitating water in a coagulating sedimentation tank.
Further, the flow rate of the effluent of the wastewater collection tank in the step (1) entering the multi-effect evaporation system is 2-3m3H; the flow of the effluent of the comprehensive adjusting tank in the step (2) entering a primary hydrolysis tank is 5-8m3Controlling the sludge concentration in the first-stage hydrolysis tank to be 3000-4000 mg/L; the flow rate of the effluent of the primary hydrolysis tank in the step (3) entering the primary aerobic tank is 5-8m3H, controlling the primary aerobic tankThe sludge concentration is 3000-4000 mg/L; the aeration flow rate of the first blast aeration machine is 4.7-7.0m3Min; controlling the concentration of dissolved oxygen to be more than 2mg/L in the primary aerobic tank; the aerobic microorganism can be a zoogloea formed by heterotrophic aerobic bacteria, autotrophic nitrate bacteria and nitrite bacteria; the flow rate of the effluent of the primary aerobic tank in the step (4) entering the buffer tank is 5-8m3Controlling the sludge concentration in the secondary hydrolysis tank to be 3000-4000 mg/L; the flow rate of the effluent of the secondary hydrolysis tank in the step (5) entering the secondary aerobic tank is 5-8m3Controlling the sludge concentration in the secondary aerobic tank to 3000-4000 mg/L; the aeration flow rate of the second blast aerator is 1.2-1.75m3Min; controlling the concentration of dissolved oxygen in the secondary aerobic tank to be more than 2 mg/L; the aerobic microorganism can be a biomembrane formed by heterotrophic aerobic bacteria, autotrophic nitrate bacteria and nitrite bacteria; the flow rate of the effluent of the secondary aerobic tank in the step (6) entering the coagulating sedimentation tank is 5-8m3H; the adding amount of the polyaluminium chloride is 15-18kg/d, and the adding amount of the polyacrylamide is 0.2-0.5 kg/d.
The multi-effect evaporation system of the utility model is a triple-effect evaporation process, and the specific process diagram is shown in figure 2. The multi-effect evaporation system of the utility model can also adopt other similar process principles.
The material trend of the multi-effect evaporation system shown in fig. 2 is as follows: the sewage enters a triple-effect heating chamber after being preheated by a feeding pump and a condensate water preheater, forced circulation evaporation concentration is carried out between the triple-effect heating chamber and a triple-effect separation chamber through a triple-effect forced circulation pump, and the concentrated material enters a double-effect heating chamber from the triple-effect separation chamber under the action of a triple-effect discharge pump; forced circulation evaporation concentration is carried out between the two-effect heating chamber and the two-effect separation chamber through a two-effect forced circulation pump, and the concentrated materials enter the one-effect heating chamber from the two-effect separation chamber under the action of a two-effect discharge pump; forced circulation evaporation concentration is carried out between the first-effect heating chamber and the first-effect separation chamber through a first-effect forced circulation pump, concentrated materials are conveyed to a concentrated solution kettle through a first-effect discharge pump, the concentrated materials are pumped into a scraper evaporator through a concentrated feeding pump, and the scraper evaporation waste slurry is collected and periodically transported outside.
Steam and condensate trends for the multi-effect evaporation system shown in fig. 2: raw steam enters a first-effect heating chamber and a scraper shell pass to exchange heat with materials for condensation, and steam condensate is collected and recycled after exchanging heat with raw materials; the secondary steam generated by the primary effect separation chamber in the evaporation process enters a shell pass of the secondary effect heating chamber and a solution of a tube pass to be subjected to heat exchange condensation, secondary condensate enters the preheater to be subjected to heat exchange condensation with the raw material, the secondary steam generated by the secondary effect separation chamber in the evaporation process enters the tertiary effect heating chamber to be subjected to heat exchange condensation, and condensed condensate water enters the condensate water tank after being subjected to heat exchange condensation by the condenser. Secondary steam generated in the evaporation process of the three-effect separation chamber enters a condenser for heat exchange and condensation, and condensate enters a condensate water tank and is discharged into a condensate collecting pool by a condensate water pump; the non-condensable gas is pumped out by a vacuum pump and is exhausted into the atmosphere after passing through a tail gas absorption tank. Similarly, secondary steam generated in the evaporation process of the scraper evaporator enters a condenser of the scraper evaporator through a transfer tank under the action of a circulating pump to exchange heat and condense, and condensate enters a scraper condensate water tank and is discharged into a condensate collecting pool by a scraper condensate water pump; the non-condensable gas is pumped out by a scraper vacuum pump and is exhausted into the atmosphere after passing through a tail gas absorption tank.
The utility model discloses an actively the effect:
the utility model discloses the method combines multiple-effect evaporation system, hydrolysis, good oxygen, sediment, filtration technology, has carried out advanced treatment to containing triethylamine comprehensive waste water, and the play water COD of final technology is less than or equal to 45mg/L, can reach the one-level emission standard in the integrated discharge standard of wastewater in yellow river basin (shanxi section) (DB 61/224) 2011 and the one-level emission standard in the integrated discharge standard of wastewater (GB 61-1996), and wherein COD is less than or equal to 45 mg/L.
Drawings
FIG. 1 is a schematic diagram of an advanced treatment system for triethylamine-containing comprehensive wastewater according to the present invention;
FIG. 2 is a general process diagram of the multi-effect evaporation system of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 2;
in the figure, 1 a feeding pump, 2 a condensed water preheater, 3 a-effect heating chamber, 4 a-effect separation chamber, 5 a-effect forced circulation pump, 6 a-effect discharging pump, 7 a-effect heating chamber, 8 a-effect separation chamber, 9 a-effect forced circulation pump, 10 a-effect discharging pump, 11 a-effect heating chamber, 12 a-effect separation chamber, 13 a-effect forced circulation pump, 14 a-effect discharging pump, 15 a preheater, 16 a condenser, 17 a condensed water tank, 18 a condensed water pump, 19 a vacuum pump, 20 a concentrated solution kettle, 21 a scraper evaporator, 22 a transfer tank, 23 a scraper evaporative condenser, 24 a scraper condensed water tank, 25 a concentrated feeding pump, 26 a circulation pump, 27 a scraper condensed water pump, 28 a scraper vacuum pump and 29 a tail gas absorption tank.
Detailed Description
The present invention will be further described with reference to the following examples.
In order to solve the technical complexity that contains triethylamine comprehensive waste water among the prior art, the cost is higher, and the COD content in the water still above the scheduling problem of 100mg/L after handling, the utility model provides an advanced treatment system who contains triethylamine comprehensive waste water can be with COD value containing triethylamine comprehensive waste water treatment below 12000mg/L to COD is less than or equal to 45 mg/L.
Example 1 advanced treatment System for Triethylamine-containing comprehensive wastewater
The advanced treatment system for triethylamine-containing comprehensive wastewater in the embodiment is shown in fig. 1 and comprises a wastewater collection tank, a multiple-effect evaporation system, a condensate collection tank, a comprehensive regulation tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system; the waste water collecting tank passes through pipe connection to multiple-effect evaporation system (see fig. 2), multiple-effect evaporation system passes through pipe connection to condensate collecting tank, the condensate collecting tank passes through pipe connection to the comprehensive equalizing basin, the comprehensive equalizing basin passes through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic tank of one-level, the aerobic tank of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade is hydrolysed the pond and is passed through pipe connection to the aerobic tank of second grade, the aerobic tank of second grade passes through pipe connection to the coagulating sedimentation tank, the coagulating sedimentation tank passes through pipe connection to filtration system.
Conveying the triethylamine-containing comprehensive wastewater to a wastewater collection pool through a pipeline; the comprehensive adjusting tank can be also connected with a domestic sewage pipeline and a circulating water drainage pipeline, and the comprehensive adjusting tank mixes the effluent from the condensate collecting tank with domestic sewage and circulating water drainage. The system also comprises an evaporation slag pool, and the multi-effect evaporation system transports the waste slurry generated by the multi-effect evaporation system to the evaporation slag pool through the pipeline branch. The primary aerobic tank is also provided with a pipeline first branch and a pipeline second branch, the primary aerobic tank is connected to the primary hydrolysis tank through the pipeline first branch for sludge backflow, and the primary aerobic tank is connected to the secondary hydrolysis tank through the pipeline second branch for periodic sludge supplementation; the advanced treatment system for the triethylamine-containing comprehensive wastewater further comprises a sludge tank, wherein a pipeline three-branch is further arranged in the first-stage aerobic tank, the first-stage aerobic tank is connected to the sludge tank through the pipeline three-branch, redundant sludge in the first-stage aerobic tank is conveyed to the sludge tank, the coagulating sedimentation tank is connected to the sludge tank through a pipeline branch, sludge in the coagulating sedimentation tank is conveyed to the sludge tank, and the sludge tank conveys the sludge to the next sludge treatment system for sludge treatment. The system also comprises a first blast aerator and a second blast aerator, wherein the primary aerobic tank is connected with the first blast aerator, and the first blast aerator is used for blast aeration of the primary aerobic tank; the second-stage aerobic tank is connected with a second blast aerator, and the second blast aerator is used for blast aeration of the second-stage aerobic tank. The multi-effect evaporation system is 3 effects; the filtration system may be a multi-media filter; the primary hydrolysis tank and the secondary hydrolysis tank can be hydrolysis acidification tanks with or without filler; the primary aerobic tank can be an SBR process or a CASS process; the secondary aerobic tank can be a contact oxidation process.
The method for treating the triethylamine-containing comprehensive wastewater by using the advanced treatment system for the triethylamine-containing comprehensive wastewater comprises the following steps:
(1) conveying the triethylamine-containing comprehensive wastewater to a wastewater collection pool through a pipeline, discharging water from the wastewater collection pool, entering a multi-effect evaporation system, removing most organic pollutants, total phosphorus and solid pollutants in the water, discharging water from the multi-effect evaporation system, entering a condensate collection pool, and generating waste slurry by the multi-effect evaporation systemTransporting the liquid outwards, and discharging the effluent of the condensate collecting tank into a comprehensive adjusting tank; the waste slurry generated by the multi-effect evaporation system is transported to an evaporation slag pool; domestic wastewater and circulating water drainage enter the comprehensive regulating tank through a pipeline and are mixed with the effluent of the condensate collecting tank; the flow of the effluent of the wastewater collection tank entering the multi-effect evaporation system is 2-3m3/h；
(2) The water discharged from the comprehensive adjusting tank enters a primary hydrolysis tank, the primary hydrolysis tank contains sludge and hydrolytic bacteria and acidifying bacteria cultured in the sludge, and macromolecular substances which are difficult to biodegrade in the water are converted into micromolecular substances which are easy to biodegrade by the hydrolytic bacteria and the acidifying bacteria; the flow of the effluent of the comprehensive adjusting tank entering the primary hydrolysis tank is 5-8m3Controlling the sludge concentration in the first-stage hydrolysis tank to be 3000-4000 mg/L;
(3) the effluent of the primary hydrolysis tank enters a primary aerobic tank, the primary aerobic tank contains sludge and aerobic microorganisms cultured in the sludge, and the aerobic microorganisms are utilized to decompose organic pollutants in the water into inorganic matters so as to remove the organic pollutants in the water; the first blast aerator can be arranged in the aeration tank to aerate the primary aerobic tank; the flow of the effluent of the primary hydrolysis tank entering the primary aerobic tank is 5-8m3Controlling the sludge concentration in the primary aerobic tank to 3000-4000 mg/L; the aeration flow rate of the first blast aeration machine is 4.7-7.0m3Min; controlling the concentration of dissolved oxygen to be more than 2mg/L in the primary aerobic tank; the aerobic microorganism can be a zoogloea formed by heterotrophic aerobic bacteria, autotrophic nitrate bacteria and nitrite bacteria;
(4) the effluent of the first-stage aerobic tank enters a buffer tank, the effluent of the buffer tank enters a second-stage hydrolysis tank, the second-stage hydrolysis tank contains sludge and hydrolytic bacteria and acidifying bacteria cultured in the sludge, and the hydrolytic bacteria and the acidifying bacteria are secondarily utilized to convert macromolecular substances which are difficult to biodegrade in water into micromolecular substances which are easy to biodegrade; the flow of the effluent of the primary aerobic tank entering the buffer tank is 5-8m3Controlling the sludge concentration in the secondary hydrolysis tank to be 3000-4000 mg/L;
(5) the effluent of the secondary hydrolysis tank enters a secondary aerobic tank, the secondary aerobic tank contains sludge and aerobic microorganisms cultured in the sludge, and the secondary aerobic tank is used for the second timeDecomposing organic pollutants in water into inorganic matters by utilizing aerobic microorganisms, and removing the organic pollutants in the water; a second blast aerator can be arranged in the aeration tank to aerate the secondary aerobic tank; the flow of the effluent of the secondary hydrolysis tank entering the secondary aerobic tank is 5-8m3Controlling the sludge concentration in the secondary aerobic tank to 3000-4000 mg/L; the aeration flow rate of the second blast aerator is 1.2-1.75m3Min; controlling the concentration of dissolved oxygen in the secondary aerobic tank to be more than 2 mg/L; the aerobic microorganism can be a biomembrane formed by heterotrophic aerobic bacteria, autotrophic nitrate bacteria and nitrite bacteria;
(6) the effluent of the secondary aerobic tank enters a coagulating sedimentation tank, and a flocculating agent is added to remove fine suspended pollutants in the water; the COD of the effluent of the coagulating sedimentation tank after passing through a filtering system is less than or equal to 45 mg/L; adding aluminium polychlorid, mixing for 2min, adding polyacrylamide, and removing fine suspended pollutants in water by the action of mixing, flocculating and precipitating the water in a coagulating sedimentation tank; the flow of the effluent of the secondary aerobic tank entering the coagulating sedimentation tank is 5-8m3H; the adding amount of the polyaluminium chloride is 15-18kg/d, and the adding amount of the polyacrylamide is 0.2-0.5 kg/d.
In the method, a part of sludge in the primary aerobic tank flows back to the primary hydrolysis tank to supplement the sludge in the primary hydrolysis tank; conveying a part of sludge in the primary aerobic tank to a secondary hydrolysis tank to supplement the sludge in the secondary hydrolysis tank; conveying the excess sludge in the primary aerobic tank to a sludge tank; conveying the sludge in the coagulating sedimentation tank to a sludge tank; and conveying the sludge in the sludge tank to a next sludge treatment system for treating the sludge.
Example 2 advanced treatment system of comprehensive waste water containing triethylamine
The advanced treatment system for triethylamine-containing comprehensive wastewater comprises a wastewater collecting tank, a multi-effect evaporation system, a condensate collecting tank, a comprehensive adjusting tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system; contain triethylamine comprehensive waste water and pass through the pipe-line and carry the waste water collecting pit, the waste water collecting pit passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting pit, the condensate collecting pit passes through pipe connection to synthesize the equalizing basin, synthesize the equalizing basin and pass through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic pond of one-level, the aerobic pond of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade is hydrolysed the pond and is passed through pipe connection to the aerobic pond of second grade, the aerobic pond of second grade passes through pipe connection to the coagulating sedimentation pond, the coagulating sedimentation.
The method for treating the triethylamine-containing comprehensive wastewater by using the advanced treatment system for the triethylamine-containing comprehensive wastewater comprises the following steps:
(1) conveying the triethylamine-containing comprehensive wastewater to a wastewater collection pool through a pipeline, discharging water from the wastewater collection pool, and allowing the water to enter a multi-effect evaporation system to remove most organic pollutants, total phosphorus and solid pollutants in the water, allowing the discharged water from the multi-effect evaporation system to enter a condensate collection pool, transporting waste slurry generated by the multi-effect evaporation system outwards, and allowing the discharged water from the condensate collection pool to enter a comprehensive regulation pool;
(2) the water discharged from the comprehensive adjusting tank enters a primary hydrolysis tank, the primary hydrolysis tank contains sludge and hydrolytic bacteria and acidifying bacteria cultured in the sludge, and macromolecular substances which are difficult to biodegrade in the water are converted into micromolecular substances which are easy to biodegrade by the hydrolytic bacteria and the acidifying bacteria;
(3) the effluent of the primary hydrolysis tank enters a primary aerobic tank, the primary aerobic tank contains sludge and aerobic microorganisms cultured in the sludge, and the aerobic microorganisms are utilized to decompose organic pollutants in the water into inorganic matters so as to remove the organic pollutants in the water;
(4) the effluent of the first-stage aerobic tank enters a buffer tank, the effluent of the buffer tank enters a second-stage hydrolysis tank, the second-stage hydrolysis tank contains sludge and hydrolytic bacteria and acidifying bacteria cultured in the sludge, and the hydrolytic bacteria and the acidifying bacteria are secondarily utilized to convert macromolecular substances which are difficult to biodegrade in water into micromolecular substances which are easy to biodegrade;
(5) the effluent of the secondary hydrolysis tank enters a secondary aerobic tank, the secondary aerobic tank contains sludge and aerobic microorganisms cultured in the sludge, and the aerobic microorganisms are secondarily utilized to decompose organic pollutants in the water into inorganic matters so as to remove the organic pollutants in the water;
(6) the effluent of the secondary aerobic tank enters a coagulating sedimentation tank, and a flocculating agent is added to remove fine suspended pollutants in the water; the COD of the effluent of the coagulating sedimentation tank after passing through a filtering system is less than or equal to 45 mg/L.
Example 3 advanced treatment system of comprehensive waste water containing triethylamine
The advanced treatment system for triethylamine-containing comprehensive wastewater comprises a wastewater collecting tank, a multi-effect evaporation system, a condensate collecting tank, a comprehensive adjusting tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system; the waste water collecting tank passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting tank, the condensate collecting tank passes through pipe connection to the integrated equalizing basin, the integrated equalizing basin passes through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic tank of one-level, the aerobic tank of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade pond of hydrolysising passes through pipe connection to the aerobic tank of second grade, the aerobic tank of second grade passes through pipe connection to the coagulating sedimentation tank, the coagulating sedimentation tank passes through pipe connection to filtration system, finally goes out. Conveying the triethylamine-containing comprehensive wastewater to a wastewater collection pool through a pipeline; the comprehensive adjusting tank can be also connected with a domestic sewage pipeline and a circulating water drainage pipeline, and the comprehensive adjusting tank mixes the effluent from the condensate collecting tank with domestic sewage and circulating water drainage.
Example 4 advanced treatment system of comprehensive wastewater containing triethylamine
The advanced treatment system for triethylamine-containing comprehensive wastewater comprises a wastewater collecting tank, a multi-effect evaporation system, a condensate collecting tank, a comprehensive adjusting tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system; the waste water collecting tank passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting tank, the condensate collecting tank passes through pipe connection to the integrated equalizing basin, the integrated equalizing basin passes through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic tank of one-level, the aerobic tank of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade pond of hydrolysising passes through pipe connection to the aerobic tank of second grade, the aerobic tank of second grade passes through pipe connection to the coagulating sedimentation tank, the coagulating sedimentation tank passes through pipe connection to filtration system, finally goes out. Conveying the triethylamine-containing comprehensive wastewater to a wastewater collection pool through a pipeline; the comprehensive adjusting tank can be also connected with a domestic sewage pipeline and a circulating water drainage pipeline, and the comprehensive adjusting tank mixes the effluent from the condensate collecting tank with domestic sewage and circulating water drainage. The system also comprises an evaporation slag pool, and the multi-effect evaporation system transports the waste slurry generated by the multi-effect evaporation system to the evaporation slag pool through the pipeline branch.
Example 5 advanced treatment System for Triethylamine-containing comprehensive wastewater
The advanced treatment system for triethylamine-containing comprehensive wastewater comprises a wastewater collecting tank, a multi-effect evaporation system, a condensate collecting tank, a comprehensive adjusting tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system; the waste water collecting tank passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting tank, the condensate collecting tank passes through pipe connection to the integrated equalizing basin, the integrated equalizing basin passes through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic tank of one-level, the aerobic tank of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade pond of hydrolysising passes through pipe connection to the aerobic tank of second grade, the aerobic tank of second grade passes through pipe connection to the coagulating sedimentation tank, the coagulating sedimentation tank passes through pipe connection to filtration system, finally goes out. Conveying the triethylamine-containing comprehensive wastewater to a wastewater collection pool through a pipeline; the comprehensive adjusting tank can be also connected with a domestic sewage pipeline and a circulating water drainage pipeline, and the comprehensive adjusting tank mixes the effluent from the condensate collecting tank with domestic sewage and circulating water drainage. The system also comprises an evaporation slag pool, and the multi-effect evaporation system transports the waste slurry generated by the multi-effect evaporation system to the evaporation slag pool through the pipeline branch. The primary aerobic tank is also provided with a pipeline first branch and a pipeline second branch, the primary aerobic tank is connected to the primary hydrolysis tank through the pipeline first branch for sludge backflow, and the primary aerobic tank is connected to the secondary hydrolysis tank through the pipeline second branch for periodic sludge supplementation; the advanced treatment system for the triethylamine-containing comprehensive wastewater further comprises a sludge tank, wherein a pipeline three-branch is further arranged in the first-stage aerobic tank, the first-stage aerobic tank is connected to the sludge tank through the pipeline three-branch, redundant sludge in the first-stage aerobic tank is conveyed to the sludge tank, the coagulating sedimentation tank is connected to the sludge tank through a pipeline branch, sludge in the coagulating sedimentation tank is conveyed to the sludge tank, and the sludge tank conveys the sludge to the next sludge treatment system for sludge treatment.
Example 6 advanced treatment System for Triethylamine-containing comprehensive wastewater
The advanced treatment system for triethylamine-containing comprehensive wastewater comprises a wastewater collecting tank, a multi-effect evaporation system, a condensate collecting tank, a comprehensive adjusting tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system; contain triethylamine comprehensive waste water and pass through the pipe-line and carry the waste water collecting pit, the waste water collecting pit passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting pit, the condensate collecting pit passes through pipe connection to synthesize the equalizing basin, synthesize the equalizing basin and pass through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic pond of one-level, the aerobic pond of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade is hydrolysed the pond and is passed through pipe connection to the aerobic pond of second grade, the aerobic pond of second grade passes through pipe connection to the coagulating sedimentation pond, the coagulating sedimentation. The system also comprises an evaporation slag pool, and the multi-effect evaporation system transports the waste slurry generated by the multi-effect evaporation system to the evaporation slag pool through the pipeline branch.
Example 7 advanced treatment system of comprehensive wastewater containing triethylamine
The advanced treatment system for triethylamine-containing comprehensive wastewater comprises a wastewater collecting tank, a multi-effect evaporation system, a condensate collecting tank, a comprehensive adjusting tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system; contain triethylamine comprehensive waste water and pass through the pipe-line and carry the waste water collecting pit, the waste water collecting pit passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting pit, the condensate collecting pit passes through pipe connection to synthesize the equalizing basin, synthesize the equalizing basin and pass through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic pond of one-level, the aerobic pond of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade is hydrolysed the pond and is passed through pipe connection to the aerobic pond of second grade, the aerobic pond of second grade passes through pipe connection to the coagulating sedimentation pond, the coagulating sedimentation. The primary aerobic tank is also provided with a pipeline first branch and a pipeline second branch, the primary aerobic tank is connected to the primary hydrolysis tank through the pipeline first branch for sludge backflow, and the primary aerobic tank is connected to the secondary hydrolysis tank through the pipeline second branch for periodic sludge supplementation; the advanced treatment system for the triethylamine-containing comprehensive wastewater further comprises a sludge tank, wherein a pipeline three-branch is further arranged in the first-stage aerobic tank, the first-stage aerobic tank is connected to the sludge tank through the pipeline three-branch, redundant sludge in the first-stage aerobic tank is conveyed to the sludge tank, the coagulating sedimentation tank is connected to the sludge tank through a pipeline branch, sludge in the coagulating sedimentation tank is conveyed to the sludge tank, and the sludge tank conveys the sludge to the next sludge treatment system for sludge treatment.
Example 8 advanced treatment System for Triethylamine-containing comprehensive wastewater
The advanced treatment system for triethylamine-containing comprehensive wastewater comprises a wastewater collecting tank, a multi-effect evaporation system, a condensate collecting tank, a comprehensive adjusting tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system; contain triethylamine comprehensive waste water and pass through the pipe-line and carry the waste water collecting pit, the waste water collecting pit passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting pit, the condensate collecting pit passes through pipe connection to synthesize the equalizing basin, synthesize the equalizing basin and pass through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic pond of one-level, the aerobic pond of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade is hydrolysed the pond and is passed through pipe connection to the aerobic pond of second grade, the aerobic pond of second grade passes through pipe connection to the coagulating sedimentation pond, the coagulating sedimentation. The system also comprises a first blast aerator and a second blast aerator, wherein the primary aerobic tank is connected with the first blast aerator, and the first blast aerator is used for blast aeration of the primary aerobic tank; the second-stage aerobic tank is connected with a second blast aerator, and the second blast aerator is used for blast aeration of the second-stage aerobic tank.
Example 9 advanced treatment System for Triethylamine-containing comprehensive wastewater
The advanced treatment system for triethylamine-containing comprehensive wastewater comprises a wastewater collecting tank, a multi-effect evaporation system, a condensate collecting tank, a comprehensive adjusting tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system; contain triethylamine comprehensive waste water and pass through the pipe-line and carry the waste water collecting pit, the waste water collecting pit passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting pit, the condensate collecting pit passes through pipe connection to synthesize the equalizing basin, synthesize the equalizing basin and pass through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic pond of one-level, the aerobic pond of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade is hydrolysed the pond and is passed through pipe connection to the aerobic pond of second grade, the aerobic pond of second grade passes through pipe connection to the coagulating sedimentation pond, the coagulating sedimentation. The system also comprises an evaporation slag pool, and the multi-effect evaporation system transports the waste slurry generated by the multi-effect evaporation system to the evaporation slag pool through the pipeline branch. The system also comprises a first blast aerator and a second blast aerator, wherein the primary aerobic tank is connected with the first blast aerator, and the first blast aerator is used for blast aeration of the primary aerobic tank; the second-stage aerobic tank is connected with a second blast aerator, and the second blast aerator is used for blast aeration of the second-stage aerobic tank.
Example 10 advanced treatment System for Triethylamine-containing Integrated wastewater (treatment of Triethylamine-containing Integrated wastewater alone, treatment of domestic wastewater and discharge of circulating Water)
The advanced treatment system for triethylamine-containing comprehensive wastewater comprises a wastewater collecting tank, a multi-effect evaporation system, a condensate collecting tank, a comprehensive adjusting tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system; the waste water collecting tank passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting tank, the condensate collecting tank passes through pipe connection to the integrated equalizing basin, the integrated equalizing basin passes through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic tank of one-level, the aerobic tank of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade pond of hydrolysising passes through pipe connection to the aerobic tank of second grade, the aerobic tank of second grade passes through pipe connection to the coagulating sedimentation tank, the coagulating sedimentation tank passes through pipe connection to filtration system, finally goes out.
Conveying the triethylamine-containing comprehensive wastewater to a wastewater collection pool through a pipeline; the system also comprises an evaporation slag pool, and the multi-effect evaporation system transports the waste slurry generated by the multi-effect evaporation system to the evaporation slag pool through the pipeline branch. The primary aerobic tank is also provided with a pipeline first branch and a pipeline second branch, the primary aerobic tank is connected to the primary hydrolysis tank through the pipeline first branch for sludge backflow, and the primary aerobic tank is connected to the secondary hydrolysis tank through the pipeline second branch for periodic sludge supplementation; the advanced treatment system for the triethylamine-containing comprehensive wastewater further comprises a sludge tank, wherein a pipeline three-branch is further arranged in the first-stage aerobic tank, the first-stage aerobic tank is connected to the sludge tank through the pipeline three-branch, redundant sludge in the first-stage aerobic tank is conveyed to the sludge tank, the coagulating sedimentation tank is connected to the sludge tank through a pipeline branch, sludge in the coagulating sedimentation tank is conveyed to the sludge tank, and the sludge tank conveys the sludge to the next sludge treatment system for sludge treatment. The system also comprises a first blast aerator and a second blast aerator, wherein the primary aerobic tank is connected with the first blast aerator, and the first blast aerator is used for blast aeration of the primary aerobic tank; the second-stage aerobic tank is connected with a second blast aerator, and the second blast aerator is used for blast aeration of the second-stage aerobic tank. The multi-effect evaporation system is 3 effects; the filtration system may be a multi-media filter; the primary hydrolysis tank and the secondary hydrolysis tank can be hydrolysis acidification tanks with or without filler; the primary aerobic tank can be an SBR process or a CASS process; the secondary aerobic tank can be a contact oxidation process.
The method for treating the triethylamine-containing comprehensive wastewater by using the advanced treatment system for the triethylamine-containing comprehensive wastewater comprises the following steps:
(1) conveying the triethylamine-containing comprehensive wastewater to a wastewater collection pool through a pipeline, discharging water from the wastewater collection pool, and allowing the water to enter a multi-effect evaporation system to remove most organic pollutants, total phosphorus and solid pollutants in the water, allowing the discharged water from the multi-effect evaporation system to enter a condensate collection pool, transporting waste slurry generated by the multi-effect evaporation system outwards, and allowing the discharged water from the condensate collection pool to enter a comprehensive regulation pool; the waste slurry generated by the multi-effect evaporation system is transported to an evaporation slag pool; the flow of the effluent of the wastewater collection tank entering the multi-effect evaporation system is 2-3m3/h；
(2) The water discharged from the comprehensive adjusting tank enters a primary hydrolysis tank, the primary hydrolysis tank contains sludge and hydrolytic bacteria and acidifying bacteria cultured in the sludge, and macromolecular substances which are difficult to biodegrade in the water are converted into micromolecular substances which are easy to biodegrade by the hydrolytic bacteria and the acidifying bacteria; the flow of the effluent of the comprehensive adjusting tank entering the primary hydrolysis tank is 5-8m3Controlling the sludge concentration in the first-stage hydrolysis tank to be 3000-4000 mg/L;
(3) the effluent of the primary hydrolysis tank enters a primary aerobic tank, the primary aerobic tank contains sludge and aerobic microorganisms cultured in the sludge, and the aerobic microorganisms are utilized to decompose organic pollutants in the water into inorganic matters so as to remove the organic pollutants in the water; the first blast aerator can be arranged in the aeration tank to aerate the primary aerobic tank; the flow of the effluent of the primary hydrolysis tank entering the primary aerobic tank is 5-8m3Controlling the sludge concentration in the primary aerobic tank to 3000-4000 mg/L; the aeration flow rate of the first blast aeration machine is 4.7-7.0m3Min; controlling the concentration of dissolved oxygen to be more than 2mg/L in the primary aerobic tank; the aerobic microorganism can be a zoogloea formed by heterotrophic aerobic bacteria, autotrophic nitrate bacteria and nitrite bacteria;
(4) the effluent of the first-stage aerobic tank enters a buffer tank, the effluent of the buffer tank enters a second-stage hydrolysis tank, the second-stage hydrolysis tank contains sludge and hydrolytic bacteria and acidifying bacteria cultured in the sludge, and the hydrolytic bacteria and the acidifying bacteria are secondarily utilized to convert macromolecular substances which are difficult to biodegrade in water into micromolecular substances which are easy to biodegrade; the flow of the effluent of the primary aerobic tank entering the buffer tank is 5-8m3Controlling the sludge concentration in the secondary hydrolysis tank to be 3000-4000 mg/L;
(5) the effluent of the secondary hydrolysis tank enters a secondary aerobic tank, the secondary aerobic tank contains sludge and aerobic microorganisms cultured in the sludge, and the aerobic microorganisms are secondarily utilized to decompose organic pollutants in the water into inorganic matters so as to remove the organic pollutants in the water; a second blast aerator can be arranged in the aeration tank to aerate the secondary aerobic tank; the flow of the effluent of the secondary hydrolysis tank entering the secondary aerobic tank is 5-8m3The sludge concentration in the secondary aerobic tank is controlled to be 3000-4000 mg/hrL; the aeration flow rate of the second blast aerator is 1.2-1.75m3Min; controlling the concentration of dissolved oxygen in the secondary aerobic tank to be more than 2 mg/L; the aerobic microorganism can be a biomembrane formed by heterotrophic aerobic bacteria, autotrophic nitrate bacteria and nitrite bacteria;
(6) the effluent of the secondary aerobic tank enters a coagulating sedimentation tank, and a flocculating agent is added to remove fine suspended pollutants in the water; the COD of the effluent of the coagulating sedimentation tank after passing through a filtering system is less than or equal to 45 mg/L; adding aluminium polychlorid, mixing for 2min, adding polyacrylamide, and removing fine suspended pollutants in water by the action of mixing, flocculating and precipitating the water in a coagulating sedimentation tank; the flow of the effluent of the secondary aerobic tank entering the coagulating sedimentation tank is 5-8m3H; the adding amount of the polyaluminium chloride is 15-18kg/d, and the adding amount of the polyacrylamide is 0.2-0.5 kg/d.
In the method, a part of sludge in the primary aerobic tank flows back to the primary hydrolysis tank to supplement the sludge in the primary hydrolysis tank; conveying a part of sludge in the primary aerobic tank to a secondary hydrolysis tank to supplement the sludge in the secondary hydrolysis tank; conveying the excess sludge in the primary aerobic tank to a sludge tank; conveying the sludge in the coagulating sedimentation tank to a sludge tank; and conveying the sludge in the sludge tank to a next sludge treatment system for treating the sludge.
The utility model discloses in the system one-level pond, the second grade pond of hydrolysising can be the hydrolytic acidification pond that contains the filler or does not contain the filler. The primary aerobic tank can be an SBR process or a CASS process, and the SBR process or the CASS process can be an existing process or an improved process; wherein, SBR process is short for sequencing batch activated sludge process, is an activated sludge sewage treatment technology operated according to an intermittent aeration mode, and can inquire the prior process in 360 encyclopedias; the CASS process (Cyclic Activated sludge System) is a short name of a periodic cycle Activated sludge method, is also called as a cycle Activated sludge process, and can inquire the existing process in 360 encyclopedias. The secondary aerobic tank may be a contact oxidation process, which may be an existing process or a modified process, which may be queried in the 360 encyclopedia. The present invention will not be described in detail with respect to the prior art.
In the system of the utility model, a zoogloea formed by heterotrophic aerobic bacteria, autotrophic nitric acid bacteria and nitrous acid bacteria is established in the primary aerobic tank and is used for treating water with larger organic matter concentration, and the zoogloea can be replaced by other strains with more treatment effect or the existing process or new treatment process according to the actual demand in the water treatment process, and is not limited to the process and the strain type specified in the application document; a biomembrane formed by heterotrophic aerobic bacteria, autotrophic nitrate bacteria and nitrite bacteria is established in the secondary aerobic pool and used for treating water with low organic matter concentration, and the biomembrane can be replaced by other strains with more treatment effect or the existing process or a new treatment process according to the actual requirement in the water treatment process, and is not limited to the process and the strain type specified in the application document. In the method, the primary aerobic tank is aerated to form a zoogloea; the aeration flow of the secondary aerobic tank is reduced to form a biological film.
The "zoogloea" and "biofilm" referred to in the present invention are briefly described as follows:
zoogloea: the zoogloea is a fine particle composed of bacteria and colloid substances secreted by the bacteria, and is the main body of the activated sludge. The zoogloea has strong adsorption capacity and organic matter decomposition capacity, and provides good living environment for the adsorption and decomposition of organic matters into protozoa and micro metazoan. The biochemical characteristics are shown as follows: mainly comprises bacteria and fungi, and has protozoa and metazoan; the former is the main body for degrading organic matters, and the latter is the important component of the food chain in the activated sludge, has an important effect on improving the effluent quality, and is a biological indicator of the system running state. Zoogloea is commonly used in the activated sludge process.
Biological membrane: refers to a microbial film growing between the waste water and the inert contact material. The microorganism obtains a substrate required by growth from the wastewater, the surface of the membrane is outwards propagated due to the growth of the microorganism, the thickness of the membrane is gradually increased, the inner layer is gradually in an anaerobic state or dies due to oxygen deficiency and nutrients, finally the membrane falls off due to the reduction of the shearing force or the adhesion capacity of water, and then a new microorganism film is formed again, and the process is repeated. The biological membrane can also contain macromolecular polymers secreted by bacteria, adsorbed nutrient substances, metabolic products, bacterial lysate and the like, wherein the macromolecular polymers such as proteins, polysaccharides, DNA, RNA, peptidoglycan, lipids, phospholipids and the like are a life phenomenon which is beneficial to the survival of the bacteria in order to adapt to the natural environment and are formed by accumulation of microorganisms and secretions thereof. Biofilms are used in biofilm processes.
The foregoing is a more detailed description of the invention, taken in conjunction with the specific preferred embodiments, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of conceiving, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (6)
1. The utility model provides an advanced treatment system who contains triethylamine comprehensive waste water which characterized in that: the system comprises a wastewater collecting tank, a multi-effect evaporation system, a condensate collecting tank, a comprehensive adjusting tank, a primary hydrolysis tank, a primary aerobic tank, a buffer tank, a secondary hydrolysis tank, a secondary aerobic tank, a coagulating sedimentation tank and a filtering system;
the waste water collecting tank passes through pipe connection to multiple-effect evaporation system, multiple-effect evaporation system passes through pipe connection to condensate collecting tank, the condensate collecting tank passes through pipe connection to the integrated equalizing basin, the integrated equalizing basin passes through pipe connection to the one-level pond of hydrolysising, the one-level pond of hydrolysising passes through pipe connection to the aerobic tank of one-level, the aerobic tank of one-level passes through pipe connection to the buffer pool, the buffer pool passes through pipe connection to the second grade pond of hydrolysising, the second grade pond of hydrolysising passes through pipe connection to the aerobic tank of second grade, the aerobic tank of second grade passes through pipe connection to the coagulating sedimentation tank, the coagulating sedimentation tank passes through pipe connection to filtration system, finally goes out.
2. The advanced treatment system for triethylamine-containing comprehensive wastewater as claimed in claim 1, wherein: conveying the triethylamine-containing comprehensive wastewater to a wastewater collection pool through a pipeline; the comprehensive adjusting tank can be also connected with a domestic sewage pipeline and a circulating water drainage pipeline, and the comprehensive adjusting tank mixes the effluent from the condensate collecting tank with domestic sewage and circulating water drainage.
3. The advanced treatment system for triethylamine-containing comprehensive wastewater as claimed in claim 1, wherein: the multi-effect evaporation system transports the waste slurry generated by the multi-effect evaporation system to the evaporation slag pool through a pipeline branch.
4. The advanced treatment system for triethylamine-containing comprehensive wastewater as claimed in claim 1, wherein: the primary aerobic tank is also provided with a pipeline first branch and a pipeline second branch, the primary aerobic tank is connected to the primary hydrolysis tank through the pipeline first branch for sludge backflow, and the primary aerobic tank is connected to the secondary hydrolysis tank through the pipeline second branch for periodic sludge supplementation; the advanced treatment system for the triethylamine-containing comprehensive wastewater further comprises a sludge tank, wherein a pipeline three-branch is further arranged in the first-stage aerobic tank, the first-stage aerobic tank is connected to the sludge tank through the pipeline three-branch, redundant sludge in the first-stage aerobic tank is conveyed to the sludge tank, the coagulating sedimentation tank is connected to the sludge tank through a pipeline branch, sludge in the coagulating sedimentation tank is conveyed to the sludge tank, and the sludge tank conveys the sludge to the next sludge treatment system for sludge treatment.
5. The advanced treatment system for triethylamine-containing comprehensive wastewater as claimed in claim 1, wherein: the primary aerobic tank is connected with the first blast aerator, and the first blast aerator is used for blast aeration of the primary aerobic tank; the second-stage aerobic tank is connected with a second blast aerator, and the second blast aerator is used for blast aeration of the second-stage aerobic tank.
6. The advanced treatment system for triethylamine-containing comprehensive wastewater as claimed in claim 1, wherein: the multi-effect evaporation system is 3 effects; the filtration system may be a multi-media filter; the primary hydrolysis tank and the secondary hydrolysis tank can be hydrolysis acidification tanks with or without filler; the primary aerobic tank can be an SBR process or a CASS process; the secondary aerobic tank can be a contact oxidation process.
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Effective date of registration: 20230523 Address after: G4-1701, HUanpu Industrial Park, 177 tianguba Road, Yuhua Street office, high tech Zone, Xi'an City, Shaanxi Province, 710077 Patentee after: SHAANXI XINYU SURFACE ENGINEERING Co.,Ltd. Address before: G4-1701, HUanpu Industrial Park, 177 tianguba Road, Yuhua Street office, high tech Zone, Xi'an City, Shaanxi Province, 710077 Patentee before: Ruan Jianlin |