CN106892539B - Treatment method and treatment device for high-concentration high-salt-content high-chroma sewage - Google Patents
Treatment method and treatment device for high-concentration high-salt-content high-chroma sewage Download PDFInfo
- Publication number
- CN106892539B CN106892539B CN201710173031.0A CN201710173031A CN106892539B CN 106892539 B CN106892539 B CN 106892539B CN 201710173031 A CN201710173031 A CN 201710173031A CN 106892539 B CN106892539 B CN 106892539B
- Authority
- CN
- China
- Prior art keywords
- sewage
- tank
- sludge
- concentration
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
Abstract
The application provides a high concentration height contains processing method and processing apparatus of salt high chroma sewage, utilize the high concentration height to contain the low pH characteristic of salt high chroma sewage, directly carry out catalytic oxidation open chain reaction, improve the biodegradability of sewage, reduce the colourity, most suspended solids and macromolecule colloidal substance in the rethread acid alkali neutralization and coagulating sedimentation removal sewage, through the BOD that hydrolytic acidification and anaerobic biological treatment effectively reduced sewage again, rethread multiple effect bioreactor, further reduce the COD of sewage, and effectively remove the ammonia nitrogen in the sewage, pollution factors such as phosphorus, carry out ecological treatment through water purification plant at last, further remove the heavy metal in the sewage, the sulfate, nitrogen, material such as phosphorus, reach discharge sewage up to standard.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a method and a device for treating high-concentration high-salinity high-chroma sewage.
Background
A large amount of high-concentration high-salt-content high-chroma sewage is generated every year in China, and the problem of the high-concentration high-salt-content high-chroma sewage is more prominent particularly in industries such as coal chemical industry, dyes, petrifaction, pesticides, medical intermediates, epoxy resin and the like. The sewage has the characteristics of high concentration, high chroma, high toxicity, mixed components, difficult degradation and the like, is difficult to treat and serious in pollution, causes serious negative effects on the survival and development of enterprises, and also becomes a problem which is highly concerned by the society, the public and the government. The treatment of high-concentration high-salinity high-chroma sewage becomes a bottleneck problem which restricts the realization of sustainable development of certain industries.
The traditional method for treating high-concentration high-salinity high-chroma sewage mainly comprises an advanced oxidation method, a solvent extraction method and a biochemical method. Wherein, the advanced oxidation reactor needs to resist high temperature, high pressure and corrosion, and has high equipment investment cost and high operation and maintenance cost. The solvent extraction method is only the transfer of pollutants, but not the real degradation, and the pollution cannot be fundamentally treated. The biochemical method has high cost, organic matters which are difficult to degrade are difficult to be oxidized to inorganic matters in one step, and toxic and harmful substances have toxic action on microorganisms or inhibit the activity of the microorganisms, so that the biochemical method has poor effect of treating the high-concentration high-salinity high-chroma sewage.
Disclosure of Invention
In view of the above, it is necessary to provide a method for treating high-concentration high-salinity high-chroma sewage, which addresses the problems of the background art.
In addition, this application still provides a high processing apparatus who contains salt high chroma sewage of high concentration.
A method for treating high-concentration high-salt-content high-chroma sewage comprises the following steps:
sending high-concentration high-salinity high-chroma sewage into a catalytic oxidation tank, adding ferrous sulfate and hydrogen peroxide for reaction, opening a ring and breaking a chain of a macromolecule difficult to biodegrade, and catalytically oxidizing the macromolecule into a micromolecule easy to biodegrade, so that the biodegradability of the sewage is improved;
overflowing the sewage treated by the catalytic oxidation tank to a neutralization tank, and adding alkali to adjust the pH value to 7 ~ 8;
sending the sewage treated by the neutralization tank into a coagulating sedimentation tank, adding polyaluminium chloride and polyacrylamide for coagulating sedimentation, and removing most suspended matters and a large amount of tiny colloidal groups in the sewage;
sewage treated by the coagulating sedimentation tank overflows to a hydrolysis acidification tank for hydrolysis acidification reaction, so that macromolecules which are difficult to biodegrade are further converted into micromolecules which are easy to biodegrade, and the biodegradability of the sewage is improved;
sending the sewage treated by the hydrolytic acidification tank into an anaerobic tower for anaerobic biological treatment, decomposing organic matters into methane, and removing a small part of ammonia nitrogen in the sewage;
overflowing the sewage treated by the anaerobic tower to an aerobic tank, decomposing pollutants in the sewage into carbon dioxide and water by aerobic bacteria, and removing a small part of ammonia nitrogen in the sewage;
overflowing the sewage treated by the aerobic tank to a middle sedimentation tank to further remove suspended matters in the sewage;
overflowing the sewage treated by the intermediate sedimentation tank to a multiple-effect bioreactor, and completely decomposing pollutants in the sewage and removing residual ammonia nitrogen in the sewage through the biological facultative reaction of biological carriers and high-efficiency engineering bacteria in the multiple-effect bioreactor;
and (3) sending the sewage treated by the multiple-effect bioreactor into an ecological treatment tank, absorbing and adsorbing high-chroma pollutants in the sewage by using water purification plants in the ecological treatment tank, and decomposing toxic substances in the sewage into non-toxic substances to obtain the sewage which reaches the standard and is discharged.
In one embodiment, before the step of sending the high-concentration high-salinity high-chroma sewage to the catalytic oxidation pond, the method further comprises the following steps:
and (3) quenching and tempering and diluting the high-concentration high-salinity high-chroma sewage.
In one embodiment, the dilution method is as follows: mixing and tempering high-concentration high-salinity high-chroma sewage and low-concentration sewage.
In one embodiment, the method for treating high-concentration high-salinity high-chroma sewage further comprises the following steps:
sludge produced by a coagulation sedimentation tank, an aerobic tank, a middle sedimentation tank and a multiple-effect bioreactor and part of sludge produced by a hydrolysis acidification tank are sent to a sludge concentration tank for concentration, and then are made into sludge cakes through a plate-and-frame filter press for outward transportation;
the residual sludge produced in the hydrolysis acidification tank is used as internal reflux.
In one embodiment, the method for treating high-concentration high-salinity high-chroma sewage further comprises the following steps:
and (4) sending the sludge generated by the anaerobic tower into a hydrolysis acidification tank.
A treatment device for high-concentration high-salt high-chroma sewage comprises:
the catalytic oxidation tank is used for opening and chain breaking the macromolecules which are difficult to biodegrade in the high-concentration high-salinity high-chroma sewage, and performing catalytic oxidation on the macromolecules to form micromolecules which are easy to biodegrade, so that the biodegradability of the sewage is improved;
the neutralization tank is communicated with the catalytic oxidation tank and is used for adding alkali into the sewage treated by the catalytic oxidation tank to adjust the pH value to 7 ~ 8;
the coagulating sedimentation tank is communicated with the neutralization tank and is used for coagulating sedimentation of the sewage treated by the neutralization tank to remove most suspended matters and a large amount of tiny glue bodies in the sewage;
the hydrolysis acidification tank is communicated with the coagulation sedimentation tank and is used for carrying out hydrolysis acidification on the sewage treated by the coagulation sedimentation tank, further converting the macromolecules which are difficult to be biodegraded into the micromolecules which are easy to be biodegraded, and improving the biodegradability of the sewage;
the anaerobic tower is communicated with the hydrolysis acidification tank and is used for carrying out anaerobic biological treatment on the sewage treated by the hydrolysis acidification tank, decomposing organic matters into methane and removing a small part of ammonia nitrogen in the sewage;
the aerobic tank is communicated with the anaerobic tower and is used for decomposing pollutants in the sewage treated by the anaerobic tower into carbon dioxide and water through aerobic bacteria and removing a small part of ammonia nitrogen in the sewage;
the intermediate sedimentation tank is communicated with the aerobic tank and is used for further removing suspended matters in the sewage treated by the aerobic tank;
the double-effect bioreactor is communicated with the intermediate sedimentation tank and is used for thoroughly decomposing pollutants in the sewage through the biological and aerobic reaction of a biological carrier and high-efficiency engineering bacteria on the sewage treated by the intermediate sedimentation tank and removing residual ammonia nitrogen in the sewage;
and the ecological treatment tank is communicated with the multiple-effect bioreactor and is used for absorbing and adsorbing high-chroma pollutants in the sewage treated by the multiple-effect bioreactor through a water purification plant and decomposing toxic substances in the sewage into non-toxic substances to obtain the sewage which reaches the standard and is discharged.
In one embodiment, the treatment device for high-concentration high-salt-content high-chroma sewage further comprises a regulating tank, wherein the regulating tank is communicated with the catalytic oxidation tank and is used for carrying out conditioning and dilution on the high-concentration high-salt-content high-chroma sewage before the high-concentration high-salt-content high-chroma sewage is sent into the catalytic oxidation tank.
In one embodiment, the device for treating high-concentration high-salinity high-chromaticity sewage further comprises a sludge concentration tank and a plate-and-frame filter press, wherein the coagulation sedimentation tank, the hydrolysis acidification tank, the aerobic tank, the intermediate sedimentation tank and the multiple-effect bioreactor are respectively communicated with the plate-and-frame filter press through the sludge concentration tank, and are used for concentrating sludge generated by the coagulation sedimentation tank, the aerobic tank, the intermediate sedimentation tank and the multiple-effect bioreactor and partial sludge generated by the hydrolysis acidification tank to prepare sludge cakes and transporting the sludge cakes.
In one embodiment, the treatment device for high-concentration high-salinity good-chromaticity sewage further comprises a sludge return line, wherein the sludge return line is communicated with the hydrolysis acidification tank and is used for internally returning residual sludge generated by the hydrolysis acidification tank.
In one embodiment, the device for treating high-concentration high-salinity high-chroma sewage further comprises a sewage return line and an anaerobic tower sludge line, wherein the sewage return line is communicated with the anaerobic tower and is used for internally returning the sewage in the anaerobic tower; one end of the anaerobic tower sludge pipeline is communicated with the anaerobic tower, and the other end of the anaerobic tower sludge pipeline is communicated with the hydrolysis acidification tank, and is used for conveying sludge generated by the anaerobic tower into the hydrolysis acidification tank.
The treatment method and the treatment device for the high-concentration high-salt-content high-chroma sewage utilize the low pH characteristic of the high-concentration high-salt-content high-chroma sewage, directly perform catalytic oxidation open chain reaction, improve the biodegradability of the sewage, reduce the chroma, remove most suspended matters and macromolecular colloidal substances in the sewage through acid-base neutralization and coagulating sedimentation, effectively reduce the BOD of the sewage through hydrolytic acidification and anaerobic biological treatment, further pass through a multiple-effect bioreactor, further reduce the COD of the sewage, effectively remove the ammonia nitrogen, phosphorus and other pollution factors in the sewage, and finally perform ecological treatment through water purifying plants, further remove the heavy metals, sulfate, nitrogen, phosphorus and other substances in the sewage, and achieve the purpose of up-to-standard sewage discharge.
Drawings
FIG. 1 is a flow chart of a method for treating high-concentration high-salinity high-chroma sewage according to an embodiment;
fig. 2 is a schematic structural view of a high concentration high salinity high chroma sewage treatment apparatus according to an embodiment.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It should be noted that in the present application, the COD of the high-concentration high-salinity high-chromaticity sewage is generally tens of thousands mg/L, the content of inorganic salts is high, up to tens of thousands or even more than ten thousands, the pollution toxicity is high, such as aniline, nitrobenzene, etc., the contained pollutants are mainly aromatic compounds, the BOD/COD is very low, generally below 0.1, and the biological degradation is difficult.
Referring to fig. 1, a method for treating high-concentration high-salinity high-chroma sewage includes the following steps:
s110, sending the high-concentration high-salinity high-chroma sewage into a catalytic oxidation tank, adding ferrous sulfate and hydrogen peroxide for reaction, opening a ring and breaking a chain of a macromolecule difficult to biodegrade, and performing catalytic oxidation to form a micromolecule easy to biodegrade, so that the biodegradability of the sewage is improved.
Wherein the addition amount of ferrous sulfate in each ton of sewage is 0.2kg, and the addition amount of hydrogen peroxide in each ton of sewage is 1.5 kg. Preferably, the mass concentration of the hydrogen peroxide is 30%.
It can be understood that if the sewage concentration is too high (COD is more than 50000mg/L, salt content is more than 5%), in order to reduce the load of subsequent sewage treatment, the high-concentration high-salt-content high-chroma sewage can be subjected to quenching and tempering dilution before being sent to the catalytic oxidation pond.
Specifically, the dilution method comprises the following steps: mixing and tempering high-concentration high-salinity high-chroma sewage and low-concentration sewage.
Of course, if the wastewater concentration is not particularly high, the dilution step may be omitted.
In the step S110, the catalytic oxidation is directly performed to perform the open chain reaction by using the low pH characteristic of the high-concentration high-salinity high-chromaticity sewage, so that the biodegradability of the sewage is improved, and the chromaticity of the sewage can be effectively reduced.
And S120, overflowing the sewage treated by the catalytic oxidation tank to a neutralization tank, and adding alkali to adjust the pH value to 7 ~ 8.
Wherein the alkali is liquid alkali or flake alkali.
And S130, sending the sewage treated by the neutralization tank into a coagulating sedimentation tank, adding polyaluminium chloride (PAC) and Polyacrylamide (PAM) for coagulating sedimentation, and removing most suspended matters and a large amount of micro colloidal groups in the sewage.
Wherein, the adding amount of PAC in each ton of sewage is 0.9kg, and the adding amount of PAM in each ton of sewage is 0.04 kg.
S140, overflowing the sewage treated by the coagulating sedimentation tank to a hydrolysis acidification tank for hydrolysis acidification reaction, further converting macromolecules which are difficult to biodegrade into micromolecules which are easy to biodegrade, and improving the biodegradability of the sewage.
S150, sending the sewage treated by the hydrolysis acidification tank into an anaerobic tank for anaerobic biological treatment, decomposing organic matters into methane, and removing a small part of ammonia nitrogen in the sewage.
Among them, biogas is mainly methane and carbon dioxide.
S160, overflowing the sewage treated by the anaerobic tower to an aerobic tank, decomposing pollutants in the sewage into carbon dioxide and water through aerobic bacteria, and removing a small part of ammonia nitrogen in the sewage.
S170, overflowing the sewage treated by the aerobic tank to a middle sedimentation tank to further remove suspended matters in the sewage.
S180, overflowing the sewage treated by the intermediate sedimentation tank to a multiple-effect bioreactor, and completely decomposing pollutants in the sewage and removing residual ammonia nitrogen in the sewage through the biological facultative anaerobic reaction of the biological carriers and the high-efficiency engineering bacteria in the multiple-effect bioreactor.
Wherein, the biological carrier is processed by hydrophilic polymer material. Specifically, the biological carrier is a polyurethane carrier.
The high-efficiency engineering bacteria are high-efficiency biological strains which are cultured by special domestication, purchased from Bionetix (TM) Canada, are a mixture of a biological enzyme preparation and active microorganisms, and are dark powdery substances, and the components of the high-efficiency engineering bacteria comprise enzymes, various active microorganisms, a biological surface reactant and nutrients required by the whole life cycle and biodegradation, and are compounded, fixed and circulated according to different sewage qualities to form various biological formulas.
S190, feeding the sewage treated by the multiple-effect bioreactor into an ecological treatment tank, absorbing and adsorbing high-chroma pollutants in the sewage by water purification plants in the ecological treatment tank, and decomposing toxic substances in the sewage into non-toxic substances to obtain the sewage which reaches the standard and is discharged.
Wherein the water purifying plant is Eichhornia crassipes (water hyacinth), duckweed, etc.
The high-chroma pollutants are heavy metals, sulfate, nitrogen, phosphorus and the like.
The toxic substances are phenol, cyanogen, etc.
In this embodiment, the method for treating high-concentration high-salinity high-chromaticity sewage further includes the following steps:
and (3) feeding sludge generated by the coagulation sedimentation tank, the aerobic tank, the intermediate sedimentation tank and the multiple-effect bioreactor and part of sludge generated by the hydrolysis acidification tank into a sludge concentration tank for concentration, and preparing sludge cakes through a plate-and-frame filter press for outward transportation.
In order to ensure the concentration of the sludge in the hydrolysis acidification tank and increase the retention time of the sewage, the residual sludge generated in the hydrolysis acidification tank is used as internal reflux, and the sludge generated in the anaerobic tower is also sent into the hydrolysis acidification tank.
In order to improve the treatment effect of the anaerobic tower, the treatment method of the high-concentration high-salinity high-chroma sewage further comprises the following steps: and internally refluxing the sewage of the anaerobic tower through a sewage reflux pipeline.
The method for treating the high-concentration high-salt-content high-chroma sewage utilizes the low pH characteristic of the high-concentration high-salt-content high-chroma sewage, directly performs catalytic oxidation open chain reaction, improves the biodegradability of the sewage, reduces the chroma, removes most suspended matters and macromolecular colloidal substances in the sewage through acid-base neutralization and coagulating sedimentation, effectively reduces the BOD of the sewage through hydrolytic acidification and anaerobic biological treatment, further reduces the COD of the sewage through a multiple effect bioreactor, effectively removes pollution factors such as ammonia nitrogen and phosphorus in the sewage, and finally performs ecological treatment through water purifying plants, further removes the heavy metals, sulfate, nitrogen, phosphorus and other substances in the sewage, and achieves the purpose of up-to-standard sewage discharge.
Referring to fig. 2, an embodiment of the apparatus for treating high-concentration high-salt-content good-color sewage includes a regulating tank 10, a catalytic oxidation tank 20, a neutralization tank 30, a coagulation sedimentation tank 40, a hydrolysis acidification tank 50, an anaerobic tower 60, an aerobic tank 70, a sedimentation tank 80, a multiple-effect bioreactor 90, an ecological treatment tank 100, a sludge concentration tank 110, and a plate-and-frame filter press 120.
The adjusting tank 10 is used for diluting and tempering high-concentration high-salinity high-chroma sewage so as to reduce the load of subsequent sewage treatment.
Specifically, high-concentration high-salinity high-chroma sewage and low-concentration sewage are mixed and tempered in the adjusting tank 10.
It will be appreciated that the conditioning tank 10 may be omitted if the effluent concentration is not particularly high.
The catalytic oxidation pond 20 is communicated with the regulating pond 10.
Wherein, catalytic oxidation pond 20 is used for breaking the macromolecule ring-opening that is difficult for biodegradable among the high concentration high salinity high chroma sewage, and catalytic oxidation is the micromolecule that is easy biodegradable, improves the biodegradability of sewage.
The neutralization tank 30 is communicated with the catalytic oxidation tank 20.
Wherein, the neutralization tank 30 is used for adding alkali into the sewage treated by the catalytic oxidation tank 20 to adjust the pH value to 7 ~ 8.
The coagulating sedimentation tank 40 is communicated with the neutralization tank 30.
The coagulating sedimentation tank 40 is used for coagulating sedimentation of the sewage treated by the neutralizing tank 30, and removing most suspended matters and a large amount of tiny glue bodies in the sewage.
The hydrolysis acidification tank 50 is communicated with the coagulating sedimentation tank 40.
Wherein, the hydrolysis acidification tank 50 is used for carrying out hydrolysis acidification on the sewage treated by the coagulating sedimentation tank 40, further converting macromolecules which are difficult to be biodegraded into micromolecules which are easy to be biodegraded, and improving the biodegradability of the sewage.
The anaerobic tower 60 is communicated with the hydrolysis acidification tank 50.
Wherein, the anaerobic tower 60 is used for carrying out anaerobic biological treatment on the sewage treated by the hydrolytic acidification tank 50, decomposing organic matters into methane and removing a small part of ammonia nitrogen in the sewage.
The aerobic tank 70 is communicated with the anaerobic tower 60.
Wherein, the aerobic tank 70 is used for decomposing pollutants in the sewage treated by the anaerobic tower 60 into carbon dioxide and water through aerobic bacteria, and removing a small part of ammonia nitrogen in the sewage.
The intermediate sedimentation tank 80 is communicated with the aerobic tank 70.
Wherein, the intermediate sedimentation tank 80 is used for further removing suspended matters in the sewage treated by the aerobic tank 70.
The multiple effect bioreactor 90 is communicated with the intermediate sedimentation tank 80.
Wherein, the multiple-effect bioreactor 90 is used for leading the sewage treated by the intermediate sedimentation tank 80 to pass through the biological and aerobic reaction of the biological carrier and the high-efficiency engineering bacteria, thoroughly decomposing the pollutants in the sewage and removing the residual ammonia nitrogen in the sewage.
The multiple-effect bioreactor 90 is a D-BR reactor disclosed in CN202440363U, and is a new technology which abandons the defect optimization combination of respective technologies on the basis of integrating the technical characteristics of various sewage treatment technologies such as the traditional activated sludge method, the biological contact oxidation method, the biological aerated filter and the like.
The technology has the functions of removing SS, COD, BOD, nitration, denitrification, dephosphorization and removing AOX (harmful substances), and is characterized by integrating biological oxidation and suspended solid interception, without back washing, saving a clean water tank and a subsequent sedimentation tank (secondary sedimentation tank), along with large solvent load and hydraulic load, short hydraulic retention time, less required capital investment, good effluent quality, low operation energy consumption and low operation cost.
The carrier adopted by the multiple-effect bioreactor has large specific surface area, the carrier is layered in regions, a diversified growth environment is created for microorganisms, different types of microorganisms such as anaerobes, aerobes and facultative bacteria can form a proper growth environment, the diversity of biological strains is enriched, and the multiple-effect bioreactor has the suspension characteristic of soft fillers on the carrier structure and also has the advantage of large specific surface of porous structure fillers.
The ecological treatment tank 100 is in communication with the multiple effect bioreactor 90.
Wherein, the ecological treatment tank 100 is used for absorbing and adsorbing the high-chroma pollutants in the sewage treated by the multiple-effect bioreactor 90 through water purification plants, and decomposing toxic substances in the sewage into nontoxic substances to obtain the sewage which reaches the standard and is discharged.
In the present embodiment, the coagulating sedimentation tank 40, the hydrolysis acidification tank 50, the aerobic tank 70, the intermediate sedimentation tank 80 and the multiple effect bioreactor 90 are respectively communicated with the plate-and-frame filter press 120 through a sludge concentration tank 110, and are used for concentrating sludge generated by the coagulating sedimentation tank 40, the aerobic tank 70, the intermediate sedimentation tank 80 and the multiple effect bioreactor 90 and partial sludge generated by the hydrolysis acidification tank 50 to make sludge cakes and transporting the sludge cakes outside.
In the present embodiment, the apparatus for treating high-concentration high-salt-content high-chroma sewage further includes a sludge return line 52, an anaerobic tower sludge line 62, and a sewage return line 64.
Wherein, the sludge return line 52 is communicated with the hydrolysis acidification tank 50 and is used for internally returning the residual sludge generated by the hydrolysis acidification tank 50.
One end of the anaerobic tower sludge pipeline 62 is communicated with the anaerobic tower 60, and the other end is communicated with the hydrolysis acidification tank 50, and is used for conveying sludge generated by the anaerobic tower 60 into the hydrolysis acidification tank.
The sewage return line 64 communicates with the anaerobic tower 60 for internally returning the sewage of the anaerobic tower 60.
It can be understood that the adjusting tank, the catalytic oxidation tank, the neutralization tank, the coagulating sedimentation tank, the hydrolysis acidification tank, the anaerobic tower, the aerobic tank, the intermediate sedimentation tank, the ecological treatment tank, the sludge concentration tank and the plate-and-frame filter press are all conventional devices, and the fungi used in the hydrolysis acidification tank, the anaerobic tower and the aerobic tank are all conventional fungi, and are not described herein again.
The high-concentration high-salt-content high-chroma sewage treatment device adopts the multiple-effect bioreactor, integrates biological oxidation and suspended solid interception, does not need back washing, saves a clean water tank and a subsequent sedimentation tank (secondary sedimentation tank), has large solvent load and hydraulic load, short hydraulic retention time, less required capital investment, good effluent quality, low operation energy consumption and low operation cost.
The following are specific examples.
Example 1
The analysis result of the method and the device for treating the high-concentration high-salt-content high-chroma sewage (the gallic acid wastewater) is shown in the following table:
TABLE 1 treatment analysis results of gallic acid wastewater
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A treatment method of high-concentration high-salt-content high-chroma sewage is characterized by comprising the following steps: sending high-concentration high-salinity high-chroma sewage into a catalytic oxidation tank, adding ferrous sulfate and hydrogen peroxide for reaction, opening a ring and breaking a chain of a macromolecule difficult to biodegrade, and catalytically oxidizing the macromolecule into a micromolecule easy to biodegrade, so that the biodegradability of the sewage is improved;
overflowing the sewage treated by the catalytic oxidation tank to a neutralization tank, and adding alkali to adjust the pH value to 7 ~ 8;
sending the sewage treated by the neutralization tank into a coagulating sedimentation tank, adding polyaluminium chloride and polyacrylamide for coagulating sedimentation, and removing most suspended matters and a large amount of tiny colloidal groups in the sewage;
sewage treated by the coagulating sedimentation tank overflows to a hydrolysis acidification tank for hydrolysis acidification reaction, so that macromolecules which are difficult to biodegrade are further converted into micromolecules which are easy to biodegrade, and the biodegradability of the sewage is improved;
sending the sewage treated by the hydrolytic acidification tank into an anaerobic tower for anaerobic biological treatment, decomposing organic matters into methane, and removing a small part of ammonia nitrogen in the sewage;
overflowing the sewage treated by the anaerobic tower to an aerobic tank, decomposing pollutants in the sewage into carbon dioxide and water by aerobic bacteria, and removing a small part of ammonia nitrogen in the sewage;
overflowing the sewage treated by the aerobic tank to a middle sedimentation tank to further remove suspended matters in the sewage;
overflowing the sewage treated by the intermediate sedimentation tank to a multiple-effect bioreactor, and completely decomposing pollutants in the sewage and removing residual ammonia nitrogen in the sewage through the biological facultative reaction of biological carriers and high-efficiency engineering bacteria in the multiple-effect bioreactor;
sending the sewage treated by the multiple-effect bioreactor into an ecological treatment tank, absorbing and adsorbing high-chroma pollutants in the sewage by water purification plants in the ecological treatment tank, and decomposing toxic substances in the sewage into non-toxic substances to obtain the sewage which reaches the standard;
the multiple-effect bioreactor comprises a reactor body, a biological carrier, microorganisms, an aeration device and a sludge reflux device, wherein:
the reactor body is formed by welding steel walls, at least two layers of bracket biological carriers are arranged in the steel walls and are arranged between every two layers of brackets, and the steel walls are in a mesh structure; a water inlet pipe is arranged at the lower part of one side of the steel wall, and a water outlet pipe is arranged at the upper part of the other side of the steel wall corresponding to the water inlet pipe;
the aeration device is arranged in the steel wall and comprises at least two aeration pipes, two ends of each aeration pipe are communicated with the ring-type air supply pipe to form a ring-type net structure, and the ring-type air supply pipe is also communicated with a main air supply pipe arranged at the lower part of the outer wall of the steel wall;
the sludge reflux device comprises a sludge reflux vertical pipe and a sludge reflux transverse pipe, wherein the sludge reflux vertical pipe is arranged on one side in the steel wall, and the bottom end of the sludge reflux vertical pipe extends into the lower part in the steel wall; the sludge backflow transverse pipe is arranged at the upper part of the sludge backflow vertical pipe and extends out of the steel wall, and the two pipes are communicated.
2. The method for treating high-concentration high-salt high-color sewage according to claim 1, wherein before the step of sending the high-concentration high-salt high-color sewage to the catalytic oxidation pond, the method further comprises the following steps:
and (3) quenching and tempering and diluting the high-concentration high-salinity high-chroma sewage.
3. The method for treating high-concentration high-salt high-chroma sewage according to claim 2, wherein the diluting method comprises the following steps: mixing and tempering high-concentration high-salinity high-chroma sewage and low-concentration sewage.
4. The method for treating high-concentration high-salinity high-chroma sewage according to claim 1, characterized by further comprising the following steps:
sludge produced by a coagulation sedimentation tank, an aerobic tank, a middle sedimentation tank and a multiple-effect bioreactor and part of sludge produced by a hydrolysis acidification tank are sent to a sludge concentration tank for concentration, and then are made into sludge cakes through a plate-and-frame filter press for outward transportation;
the residual sludge produced in the hydrolysis acidification tank is used as internal reflux.
5. The method for treating high-concentration high-salinity high-chroma sewage according to claim 1, characterized by further comprising the following steps:
and (4) sending the sludge generated by the anaerobic tower into a hydrolysis acidification tank.
6. The utility model provides a high concentration height contains processing apparatus of salt high chroma sewage which characterized in that includes:
the catalytic oxidation tank is used for breaking open-loop and catalytically oxidizing the macromolecules which are difficult to biodegrade in the high-concentration high-salinity high-chroma sewage into micromolecules which are easy to biodegrade, so that the biodegradability of the sewage is improved;
the neutralization tank is communicated with the catalytic oxidation tank and is used for adding alkali into the sewage treated by the catalytic oxidation tank to adjust the pH value to 7 ~ 8;
the coagulating sedimentation tank is communicated with the neutralization tank and is used for coagulating sedimentation of the sewage treated by the neutralization tank to remove most suspended matters and a large amount of tiny glue bodies in the sewage;
the hydrolysis acidification tank is communicated with the coagulation sedimentation tank and is used for carrying out hydrolysis acidification on the sewage treated by the coagulation sedimentation tank, further converting the macromolecules which are difficult to be biodegraded into the micromolecules which are easy to be biodegraded, and improving the biodegradability of the sewage;
the anaerobic tower is communicated with the hydrolysis acidification tank and is used for carrying out anaerobic biological treatment on the sewage treated by the hydrolysis acidification tank, decomposing organic matters into methane and removing a small part of ammonia nitrogen in the sewage;
the aerobic tank is communicated with the anaerobic tower and is used for decomposing pollutants in the sewage treated by the anaerobic tower into carbon dioxide and water through aerobic bacteria and removing a small part of ammonia nitrogen in the sewage;
the intermediate sedimentation tank is communicated with the aerobic tank and is used for further removing suspended matters in the sewage treated by the aerobic tank;
the double-effect bioreactor is communicated with the intermediate sedimentation tank and is used for thoroughly decomposing pollutants in the sewage through the biological and aerobic reaction of a biological carrier and high-efficiency engineering bacteria on the sewage treated by the intermediate sedimentation tank and removing residual ammonia nitrogen in the sewage;
the ecological treatment tank is communicated with the multiple-effect bioreactor and is used for absorbing and adsorbing high-chroma pollutants in the sewage treated by the multiple-effect bioreactor through water purification plants and decomposing toxic substances in the sewage into non-toxic substances to obtain the sewage which reaches the standard and is discharged;
the device also comprises an adjusting tank, wherein the adjusting tank is communicated with the catalytic oxidation tank and is used for carrying out conditioning and dilution on the high-concentration high-salinity high-chroma sewage before the high-concentration high-salinity high-chroma sewage is sent into the catalytic oxidation tank;
the device comprises a coagulation sedimentation tank, a hydrolysis acidification tank, an aerobic tank, a middle sedimentation tank and a multiple-effect bioreactor, and is characterized by also comprising a sludge concentration tank and a plate-and-frame filter press, wherein the coagulation sedimentation tank, the hydrolysis acidification tank, the aerobic tank, the middle sedimentation tank and the multiple-effect bioreactor are respectively communicated with the plate-and-frame filter press through the sludge concentration tank and are used for concentrating sludge generated by the coagulation sedimentation tank, the aerobic tank, the middle sedimentation tank and the multiple-effect bioreactor and partial sludge generated by the hydrolysis acidification tank to prepare sludge cakes for transporting;
the sludge backflow pipeline is communicated with the hydrolysis acidification tank and is used for internally refluxing the residual sludge generated by the hydrolysis acidification tank;
the multiple-effect bioreactor comprises a reactor body, a biological carrier, microorganisms, an aeration device and a sludge reflux device, wherein:
the reactor body is formed by welding steel walls, at least two layers of bracket biological carriers are arranged in the steel walls and are arranged between every two layers of brackets, and the steel walls are in a mesh structure; a water inlet pipe is arranged at the lower part of one side of the steel wall, and a water outlet pipe is arranged at the upper part of the other side of the steel wall corresponding to the water inlet pipe;
the aeration device is arranged in the steel wall and comprises at least two aeration pipes, two ends of each aeration pipe are communicated with the ring-type air supply pipe to form a ring-type net structure, and the ring-type air supply pipe is also communicated with a main air supply pipe arranged at the lower part of the outer wall of the steel wall;
the sludge reflux device comprises a sludge reflux vertical pipe and a sludge reflux transverse pipe, wherein the sludge reflux vertical pipe is arranged on one side in the steel wall, and the bottom end of the sludge reflux vertical pipe extends into the lower part in the steel wall; the sludge backflow transverse pipe is arranged at the upper part of the sludge backflow vertical pipe and extends out of the steel wall, and the two pipes are communicated.
7. The apparatus for treating high concentration high salinity high chroma sewage according to claim 6, further comprising a sewage return line and an anaerobic tower sludge line, wherein the sewage return line is communicated with the anaerobic tower and is used for internally returning the sewage in the anaerobic tower; one end of the anaerobic tower sludge pipeline is communicated with the anaerobic tower, and the other end of the anaerobic tower sludge pipeline is communicated with the hydrolysis acidification tank, and is used for conveying sludge generated by the anaerobic tower into the hydrolysis acidification tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710173031.0A CN106892539B (en) | 2017-03-22 | 2017-03-22 | Treatment method and treatment device for high-concentration high-salt-content high-chroma sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710173031.0A CN106892539B (en) | 2017-03-22 | 2017-03-22 | Treatment method and treatment device for high-concentration high-salt-content high-chroma sewage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106892539A CN106892539A (en) | 2017-06-27 |
| CN106892539B true CN106892539B (en) | 2020-01-07 |
Family
ID=59193709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710173031.0A Active CN106892539B (en) | 2017-03-22 | 2017-03-22 | Treatment method and treatment device for high-concentration high-salt-content high-chroma sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106892539B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117137A (en) * | 2019-06-06 | 2019-08-13 | 湖南正清制药集团股份有限公司 | A kind of method and system of Sinomenine production sewage treatment |
| CN112374690B (en) * | 2020-10-22 | 2022-10-21 | 厦门百仕洁环保科技有限公司 | Synchronous denitrification method for high-salinity wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3883445B2 (en) * | 2002-02-18 | 2007-02-21 | アタカ大機株式会社 | Sewage treatment equipment |
| CN101468862A (en) * | 2007-12-28 | 2009-07-01 | 北京锦奥华荣科技有限公司 | High purification treatment system for dyeing wastewater |
| CN202440363U (en) * | 2011-12-22 | 2012-09-19 | 李凌 | Novel sewage treatment bioreactor |
| CN106045064A (en) * | 2016-08-08 | 2016-10-26 | 哈尔滨北方环保工程有限公司 | Sludge discharge method for settling zone of bio-doubling process system |
| CN206570177U (en) * | 2017-03-22 | 2017-10-20 | 岳阳泰天环保科技有限公司 | The processing unit of the high saliferous high chroma sewage of high concentration |
-
2017
- 2017-03-22 CN CN201710173031.0A patent/CN106892539B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3883445B2 (en) * | 2002-02-18 | 2007-02-21 | アタカ大機株式会社 | Sewage treatment equipment |
| CN101468862A (en) * | 2007-12-28 | 2009-07-01 | 北京锦奥华荣科技有限公司 | High purification treatment system for dyeing wastewater |
| CN202440363U (en) * | 2011-12-22 | 2012-09-19 | 李凌 | Novel sewage treatment bioreactor |
| CN106045064A (en) * | 2016-08-08 | 2016-10-26 | 哈尔滨北方环保工程有限公司 | Sludge discharge method for settling zone of bio-doubling process system |
| CN206570177U (en) * | 2017-03-22 | 2017-10-20 | 岳阳泰天环保科技有限公司 | The processing unit of the high saliferous high chroma sewage of high concentration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106892539A (en) | 2017-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106277589B (en) | A kind of system and method using iron carbon Fenton pretreatment-UBF-A/O processing waste water from dyestuff | |
| CN105693019B (en) | Method and system for treating wastewater containing nitrobenzene, aniline and cyclohexylamine | |
| CN101618921B (en) | TDI wastewater advanced treatment method | |
| CN108996808B (en) | Biochemical combined treatment process and equipment for degradation-resistant concentrated water in steel industry | |
| CN103663842B (en) | A kind of deep treatment method of ethylene waste lye | |
| CN110395851B (en) | High-altitude town sewage treatment method based on nitrogen and phosphorus capture and completely autotrophic nitrogen removal | |
| CN102745868A (en) | Method for removing carbon, nitrogen and sulfur in waste water | |
| CN101514070B (en) | Disposal technique of nitrobenzene-containing sewage | |
| CN105439391A (en) | Biologically-enhanced treatment method for cyanide-containing chemical wastewater | |
| CN109231715A (en) | A method of processing chemical industry distilled ammonia wastewater | |
| Niu et al. | Unraveling membrane fouling in anoxic/oxic membrane bioreactors treating anaerobically digested piggery wastewater | |
| CN106892539B (en) | Treatment method and treatment device for high-concentration high-salt-content high-chroma sewage | |
| CN111392865A (en) | Method for treating organic amine wastewater | |
| CN109574386B (en) | Spice wastewater treatment system | |
| CN104724886A (en) | Decarbonization and total nitrogen removal treating process for semi-coking wastewater | |
| CN107010794B (en) | Dye wastewater treatment device and method | |
| CN206570177U (en) | The processing unit of the high saliferous high chroma sewage of high concentration | |
| CN104944671B (en) | A kind of processing method of wastewater from molecular sieve catalyzer | |
| CN106673370B (en) | Coking sewage treatment method | |
| CN212687845U (en) | Pharmaceutical wastewater comprehensive treatment device | |
| CN210711177U (en) | Pig manure fermentation biogas slurry treatment system | |
| Yuliasni et al. | The performance of combined technology Upflow anaerobic reactor (UAR)-activated sludge (AS) for treating batik wastewater | |
| CN106277352B (en) | A kind of enzyme-linked conjunction deoxidation method of semiconductor waste water | |
| CN112010496A (en) | High-efficient landfill leachate processing apparatus | |
| CN106746158B (en) | Advanced denitrification treatment method for wastewater generated in coal water slurry gasification process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Baling economic and Technological Development Zone, Hunan province Yueyang City Road 414000 No. 337 Patentee after: Hunan Taitian Environmental Protection Technology Co., Ltd Address before: Baling economic and Technological Development Zone, Hunan province Yueyang City Road 414000 No. 337 Patentee before: Yueyang Tai Tian Environmental Protection Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |