CN115093074A - Corn brewing wastewater treatment system and technology - Google Patents
Corn brewing wastewater treatment system and technology Download PDFInfo
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- CN115093074A CN115093074A CN202210663268.8A CN202210663268A CN115093074A CN 115093074 A CN115093074 A CN 115093074A CN 202210663268 A CN202210663268 A CN 202210663268A CN 115093074 A CN115093074 A CN 115093074A
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- 240000008042 Zea mays Species 0.000 title claims abstract description 33
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims abstract description 33
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims abstract description 32
- 235000005822 corn Nutrition 0.000 title claims abstract description 32
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 31
- 238000005516 engineering process Methods 0.000 title description 3
- 239000002351 wastewater Substances 0.000 claims abstract description 77
- 230000015271 coagulation Effects 0.000 claims abstract description 65
- 238000005345 coagulation Methods 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000004062 sedimentation Methods 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 239000010802 sludge Substances 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 239000010865 sewage Substances 0.000 claims abstract description 12
- 230000018044 dehydration Effects 0.000 claims abstract description 11
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000010992 reflux Methods 0.000 claims abstract description 5
- 230000001112 coagulating effect Effects 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 9
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 8
- 239000000920 calcium hydroxide Substances 0.000 claims description 8
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 239000010419 fine particle Substances 0.000 claims description 4
- 238000005273 aeration Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 claims 1
- 235000009973 maize Nutrition 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 235000011116 calcium hydroxide Nutrition 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 1
Images
Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
-
- 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
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
- C02F2103/325—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters from processes relating to the production of wine products
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- 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
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
-
- 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
- C02F3/302—Nitrification and denitrification treatment
Abstract
The invention discloses a corn brewing wastewater treatment system and a process, wherein the system comprises a wastewater adjusting tank, a primary coagulation tank, a primary plate frame dehydration system, an intermediate water tank, a UASB (upflow anaerobic sludge Blanket), an anaerobic tank, an aerobic tank, a secondary sedimentation tank, a secondary coagulation tank and a secondary plate frame dehydration system; the process comprises the following steps: introducing the brewing sewage into a regulating tank to homogenize the water quality; then introducing the wastewater into a primary coagulation tank for treatment and filter pressing, introducing the wastewater into an intermediate water tank, and lifting the wastewater into a UASB reaction tank for treatment through a lifting pump arranged in the intermediate water tank; the sludge enters an anaerobic tank and an aerobic tank in sequence for treatment and enters a secondary sedimentation tank, and the sludge is refluxed into the anaerobic tank for treatment through a sludge reflux pump arranged in the secondary sedimentation tank; introducing the wastewater in the secondary sedimentation tank into a secondary coagulation tank for treatment, and then performing filter pressing and discharging; the invention greatly reduces the content of organic matters in the wastewater before biochemical treatment, thereby reducing the load of a biochemical system in the later period and improving the effluent effect.
Description
Technical Field
The invention relates to the field of corn brewing wastewater treatment, in particular to a corn brewing wastewater treatment system and a corn brewing wastewater treatment process.
Background
The prior brewing wastewater treatment process mainly comprises two types. One is a biochemical waste water treatment process combining anaerobic treatment and aerobic treatment. The treatment process comprises the steps of firstly carrying out anaerobic fermentation on the brewing wastewater, greatly reducing the concentration of organic pollutants, then carrying out aerobic biological treatment and necessary chemical physical treatment, and discharging after reaching the standard. Because the particulate matters in the brewing wastewater are more and small, the particles can easily pass through the grating, and the particulate matters are difficult to degrade, so that the particulate matters are deposited in a sewage treatment system, and the tank body is required to be cleaned regularly by the treatment method.
The other is comprehensive utilization, for example, the wastewater can be used as a raw material for producing the lactic acid, but the wastewater concentration meeting the conditions is quite high, generally about 10 ten thousand milligrams per liter, and the COD concentration of most of the brewing wastewater is only 1 to 3 ten thousand milligrams per liter. Obviously, only a small amount of wastewater can be comprehensively utilized by adopting the technology, most of the rest wastewater still needs to be discharged after the tail end treatment according to the common biochemical wastewater treatment process, the treatment cost is still very high, and the feasibility is not large.
The effects of the two brewing wastewater treatment processes are not ideal, so that a treatment system comprising a coagulation reactor, a sewage dehydration system, anaerobism, an A/O, a coagulation reactor and a sludge dehydration system is adopted.
But the corn brewing wastewater contains a large amount of chaff and powdery substances, the chaff and the powdery substances are directly fed into a subsequent biochemical treatment system in the conventional process at present, and along with the operation of the system, particles are deposited in the sewage treatment system, so that the effective volume of the tank body is reduced, and the paralysis of the wastewater treatment system is caused along with the lapse of time.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a corn brewing wastewater treatment system and process, which greatly reduce the content of organic matters in wastewater before biochemical treatment, thereby reducing the load of a biochemical system in the later stage and improving the effluent effect.
The purpose of the invention is realized by the following technical scheme: a corn brewing wastewater treatment system comprises a wastewater adjusting tank, a primary coagulation and coagulation tank, a primary plate frame dehydration system, an intermediate water tank, a UASB (upflow anaerobic sludge blanket), an anaerobic tank, an aerobic tank, a secondary sedimentation tank, a secondary coagulation tank and a secondary plate frame dehydration system; the waste water equalizing basin with one-level coagulating basin intercommunication, one-level coagulating basin intercommunication has calcium hydrate charge device, PAC charge device, PAM charge device, the play water end intercommunication in one-level coagulating basin has one-level plate frame filter press, the play water end intercommunication of one-level plate frame filter press has middle pond, the play water end intercommunication in middle pond has UASB reaction tank, the play water end intercommunication in UASB reaction tank has the anaerobism pond, anaerobism pond intercommunication has the air-blower, the play water end intercommunication in anaerobism pond has good oxygen pond, the play water end intercommunication in good oxygen pond has two heavy ponds, the play water end intercommunication in two heavy ponds has second grade coagulating basin, the play water end intercommunication in second grade coagulating basin has second grade plate frame filter press.
The effluent of the secondary sedimentation tank after biological treatment often contains chromaticity and suspended matters, and the chromaticity and the suspended matters are removed by a conventional coagulating sedimentation method at present, so that the problems of incomplete chromaticity and suspended matters removal, large floor area, complex operation and the like exist, and the effluent has high chromaticity and high suspended matters. The invention removes the suspended substances and the chroma through the plate-and-frame filter pressing system after the coagulation reaction aiming at the chroma and the suspended substances in the effluent of the secondary sedimentation tank, the process is simple and easy to operate, and the effluent is easier to reach the standard.
Furthermore, install hoisting device in the waste water adjusting tank, the hoisting device delivery port with the one-level pond intercommunication that thoughtlessly congeals.
Furthermore, a stirring device is arranged in the first-stage coagulation reactor.
Further, the middle water pool is provided with a lifting device, and a water outlet of the lifting device is communicated with the UASB reaction pool.
Furthermore, a stirring device is arranged in the anaerobic tank.
Furthermore, an aeration device is arranged in the aerobic tank, and activated sludge is filled in the aerobic tank.
Furthermore, a sewage backflow device is arranged in the secondary sedimentation tank and communicated with the anaerobic tank.
A corn brewing wastewater treatment process comprises the following steps:
s1: introducing brewing sewage into a regulating tank, and homogenizing water quality through the regulating tank;
s2: introducing the wastewater flowing out of the regulating tank into a primary coagulation tank, and adding chemicals into the primary coagulation tank to form large flocs from fine particles in the wastewater;
s3: the wastewater treated by the primary coagulation reactor is directly filtered by a primary plate-and-frame filter press;
s4: introducing the wastewater filtered by the primary plate and frame filter into the intermediate water tank;
s5: lifting the wastewater into a UASB reaction tank for treatment by a lifting pump arranged in the middle water tank;
s6: the wastewater treated by the UASB reaction tank sequentially enters an anaerobic tank and an aerobic tank for treatment;
s7: the wastewater treated by the anaerobic tank and the aerobic tank enters a secondary sedimentation tank, and sludge is refluxed into the anaerobic tank for treatment by a sludge reflux pump arranged in the secondary sedimentation tank;
s8: and introducing the wastewater in the secondary sedimentation tank into a secondary coagulation tank, adding a medicament into the secondary coagulation tank for coagulation sedimentation, introducing the wastewater subjected to coagulation sedimentation into a secondary plate-and-frame filter press for filtration treatment, and then discharging the effluent in the secondary plate-and-frame filter press into a corresponding municipal pipe network.
Adding a medicament, adjusting the pH value of the brewing wastewater to enable particles and colloid in the brewing wastewater to have coagulation reaction, removing a large amount of solid impurities in the wastewater through a plate-and-frame dehydration system, then introducing the brewing wastewater into a UASB reaction tank for anaerobic treatment, and anaerobically decomposing organic matters in the wastewater to remove more than 90% of the organic matters; then the wastewater is connected into an A/O pool) for denitrification and further reduction of organic matters in the wastewater, the water from the A/O pool enters a secondary sedimentation pool, the effluent of the secondary sedimentation pool contains certain suspended matters and chromaticity, and colloidal particle substances in the wastewater are coagulated and flocculated in a coagulation reactor; and then, the wastewater after the coagulation treatment passes through a plate-and-frame filter press, suspended matters are squeezed, and the water passing through the plate-and-frame filter press is discharged into a municipal pipeline.
Further, the agents added to the primary coagulation tank in step S1 are calcium hydroxide, PAC and PAM.
Further, the agents added to the secondary coagulation tank in step S8 are PAC and PAM.
The invention has the beneficial effects that:
the corn brewing wastewater treatment system can effectively remove solid suspended matters in wastewater through two-stage coagulation and squeezing, ensures that the quality of outlet water reaches the standard, is favorable for removing organic matters in water by adopting UASB + A/O biochemical treatment, is suitable for corn brewing wastewater and industrial sewage with similar water quality conditions, and has a wide application range.
The corn brewing wastewater treatment process aims to overcome the defects of the prior art, fully utilizes the advantages of a corn brewing wastewater treatment system, removes a large amount of organic matters in wastewater through a coagulation reactor and a plate-and-frame filter press before biochemistry, reduces the load of a biochemical system in the later stage, improves the water outlet effect, reduces the volume and the occupied area of a biochemical pool, and saves one-time investment. The invention relates to a method for removing chromaticity and suspended matters from corn brewing wastewater through a plate-and-frame filter pressing system, which aims at removing the chromaticity and the suspended matters from the chromaticity and the suspended matters in the effluent of a secondary sedimentation tank through a coagulation reaction and then removing the suspended matters through the plate-and-frame filter pressing system, and has the advantages of simple process, easy operation and high effluent reaching standard.
The invention aims at the treatment of the corn brewing wastewater and has the advantages of stable effluent quality, low investment and easy operation.
Drawings
FIG. 1 is a schematic structural diagram of a corn brewing wastewater treatment system;
in the figure: 1-a wastewater adjusting tank, 2-a primary coagulation tank, 3-a calcium hydroxide dosing device, 4-PAC dosing device, 5-PAM dosing device, 6-a primary plate and frame filter press, 7-an intermediate water tank, 8-UASB reaction tank, 9-an anaerobic tank, 10-an aerobic tank, 11-a secondary sedimentation tank, 12-an air blower, 13-a secondary coagulation tank and 14-a secondary plate and frame filter press.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following descriptions.
A corn brewing wastewater treatment system comprises a wastewater adjusting tank 1, a primary coagulation and coagulation tank, a primary plate frame dehydration system, an intermediate water tank 7, a UASB (upflow anaerobic sludge blanket), an anaerobic tank 9, an aerobic tank 10, a secondary sedimentation tank 11, a secondary coagulation tank 13 and a secondary plate frame dehydration system; a lifting device is arranged in the wastewater adjusting tank 1, and a water outlet of the lifting device is communicated with the primary coagulation tank 2; the primary coagulation tank 2 is communicated with a calcium hydroxide dosing device 3, a PAC dosing device 4 and a PAM dosing device 5, a stirring device is arranged in the primary coagulation reactor, the water outlet end of the primary coagulation tank 2 is communicated with a primary plate and frame filter press 6, and the water outlet end of the primary plate and frame filter press 6 is communicated with an intermediate water tank 7; the middle water tank 7 is provided with a lifting device, and a water outlet of the lifting device is communicated with a UASB reaction tank 8; the water outlet end of the UASB reaction tank 8 is communicated with an anaerobic tank 9, the anaerobic tank 9 is communicated with an air blower 12, a stirring device is arranged in the anaerobic tank 9, the water outlet end of the anaerobic tank 9 is communicated with an aerobic tank 10, an aeration device is arranged in the aerobic tank 10 and filled with activated sludge, and the water outlet end of the aerobic tank 10 is communicated with a secondary sedimentation tank 11; a sewage backflow device is arranged in the secondary sedimentation tank 11 and is communicated with the anaerobic tank 9, the water outlet end of the secondary sedimentation tank 11 is communicated with a secondary coagulation tank 13, and the water outlet end of the secondary coagulation tank 13 is communicated with a secondary plate-and-frame filter press 14.
Examples
A corn brewing wastewater treatment process comprises the following steps:
s1: introducing brewing sewage into a regulating tank, and homogenizing water quality through the regulating tank;
s2: introducing the wastewater flowing out of the regulating tank into a primary coagulation tank 2, and adding calcium hydroxide, PAC and PAM into the primary coagulation tank 2 to form large flocs of fine particles in the wastewater;
s3: the wastewater treated by the primary coagulation reactor is directly filtered by a primary plate-and-frame filter press 6;
s4: introducing the wastewater filtered by the primary plate and frame filter into the intermediate water tank 7;
s5: the wastewater is lifted to a UASB reaction tank 8 for treatment through a lifting pump arranged in the intermediate water tank 7;
s6: the wastewater treated by the UASB reaction tank 8 sequentially enters an anaerobic tank 9 and an aerobic tank 10 for treatment;
s7: the wastewater treated by the anaerobic tank 9 and the aerobic tank 10 enters a secondary sedimentation tank 11, and sludge is refluxed into the anaerobic tank 9 for treatment by a sludge reflux pump arranged in the secondary sedimentation tank 11;
s8: and introducing the wastewater in the secondary sedimentation tank 11 into a secondary coagulation tank 13, adding PAC and PAM into the secondary coagulation tank 13 for coagulation sedimentation, introducing the wastewater after coagulation sedimentation into a secondary plate and frame filter press 14 for filtration treatment, and then discharging the effluent in the secondary plate and frame filter press 14 into a corresponding municipal pipe network.
Comparative example
A corn brewing wastewater treatment process comprises the following steps:
s1: introducing brewing sewage into a regulating tank, and homogenizing water quality through the regulating tank;
s2: introducing the wastewater flowing out of the regulating tank into a coagulation tank, and adding calcium hydroxide, PAC and PAM into the coagulation tank to form large flocs of fine particles in the wastewater;
s3: the wastewater treated by the coagulation reactor is dehydrated and then is introduced into the intermediate water tank 7;
s4: the wastewater is lifted to a UASB reaction tank 8 for treatment through a lifting pump arranged in the intermediate water tank 7;
s5: the wastewater treated by the UASB reaction tank 8 sequentially enters an anaerobic tank 9 and an aerobic tank 10 for treatment;
s6: the wastewater treated by the anaerobic tank 9 and the aerobic tank 10 enters a secondary sedimentation tank 11, and sludge is refluxed into the anaerobic tank 9 for treatment by a sludge reflux pump arranged in the secondary sedimentation tank 11;
s7: introducing the wastewater in the secondary sedimentation tank 11 into a secondary coagulation tank 13, and adding PAC and PAM into the secondary coagulation tank 13 for mixing
Coagulating sedimentation, namely dehydrating the wastewater subjected to coagulating sedimentation.
The corn brewing wastewater treatment processes of the embodiment and the comparative example are used for respectively testing corn brewing wastewater, and after the test time is 6 months, the comprehensive treatment effect is as follows:
therefore, the system and the process have strong advantages for treating the corn brewing wastewater, can not generate large load on a subsequent biochemical treatment system, can continuously treat the wastewater for a long time, and reach the discharge standard, so that the effluent effect of the wastewater is improved.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a maize making wine effluent disposal system which characterized in that: comprises a wastewater adjusting tank (1), a primary coagulation tank, a primary plate-and-frame dehydration system, an intermediate water tank (7), a UASB (upflow anaerobic sludge blanket), an anaerobic tank (9), an aerobic tank (10), a secondary sedimentation tank (11), a secondary coagulation tank (13) and a secondary plate-and-frame dehydration system; the wastewater adjusting tank (1) is communicated with the primary coagulation tank (2), the primary coagulation tank (2) is communicated with a calcium hydroxide dosing device (3), a PAC dosing device (4) and a PAM dosing device (5), the water outlet end of the primary coagulation tank (2) is communicated with a primary plate-and-frame filter press (6), the water outlet end of the first-stage plate-and-frame filter press (6) is communicated with a middle water tank (7), the water outlet end of the middle water tank (7) is communicated with a UASB reaction tank (8), the water outlet end of the UASB reaction tank (8) is communicated with an anaerobic tank (9), the anaerobic tank (9) is communicated with an air blower (12), the water outlet end of the anaerobic tank (9) is communicated with an aerobic tank (10), the water outlet end of the aerobic tank (10) is communicated with a secondary sedimentation tank (11), the water outlet end of the secondary sedimentation tank (11) is communicated with a secondary coagulation tank (13), the water outlet end of the secondary coagulation tank (13) is communicated with a secondary plate-and-frame filter press (14).
2. The corn brewing wastewater treatment system according to claim 1, characterized in that: and a lifting device is installed in the wastewater adjusting tank (1), and a water outlet of the lifting device is communicated with the primary coagulation tank (2).
3. The corn brewing wastewater treatment system according to claim 1, characterized in that: and a stirring device is arranged in the primary coagulation reactor.
4. The corn brewing wastewater treatment system according to claim 1, characterized in that: middle pond (7) are equipped with hoisting device, hoisting device's delivery port intercommunication UASB reaction tank (8).
5. The corn brewing wastewater treatment system according to claim 1, characterized in that: a stirring device is arranged in the anaerobic tank (9).
6. The corn brewing wastewater treatment system according to claim 4, characterized in that: an aeration device is arranged in the aerobic tank (10), and activated sludge is filled in the aerobic tank.
7. The corn brewing wastewater treatment system according to claim 1, characterized in that: a sewage backflow device is arranged in the secondary sedimentation tank (11), and the backflow device is communicated with the anaerobic tank (9).
8. The corn brewing wastewater treatment process is characterized by comprising the following steps:
s1: introducing brewing sewage into a regulating tank, and homogenizing water quality through the regulating tank;
s2: introducing the wastewater flowing out of the regulating tank into a primary coagulation tank (2), and adding chemicals into the primary coagulation tank (2) to form large flocs of fine particles in the wastewater;
s3: the wastewater treated by the primary coagulation reactor is directly filtered by a primary plate-and-frame filter press (6);
s4: introducing the wastewater filtered by the primary plate and frame filter into the intermediate water tank (7);
s5: the wastewater is lifted to a UASB reaction tank (8) for treatment through a lifting pump arranged in the intermediate water tank (7);
s6: the wastewater treated by the UASB reaction tank (8) sequentially enters an anaerobic tank (9) and an aerobic tank (10) for treatment;
s7: the wastewater treated by the anaerobic tank (9) and the aerobic tank (10) enters a secondary sedimentation tank (11), and sludge is refluxed into the anaerobic tank (9) for treatment by a sludge reflux pump arranged in the secondary sedimentation tank (11);
s8: and (3) introducing the wastewater in the secondary sedimentation tank (11) into a secondary coagulation tank (13), adding a medicament into the secondary coagulation tank (13) for coagulating sedimentation, introducing the wastewater after coagulating sedimentation into a secondary plate-and-frame filter press (14) for filtering, and then discharging the effluent in the secondary plate-and-frame filter press (14) into a corresponding municipal pipe network.
9. The corn brewing wastewater treatment process according to claim 1, characterized in that: the chemicals added into the primary coagulation tank (2) in the step S1 are calcium hydroxide, PAC and PAM.
10. The corn brewing wastewater treatment process according to claim 1, characterized in that: the agents added to the secondary coagulation tank (13) in the step S8 are PAC and PAM.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210663268.8A CN115093074A (en) | 2022-06-08 | 2022-06-08 | Corn brewing wastewater treatment system and technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210663268.8A CN115093074A (en) | 2022-06-08 | 2022-06-08 | Corn brewing wastewater treatment system and technology |
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| CN202210663268.8A Pending CN115093074A (en) | 2022-06-08 | 2022-06-08 | Corn brewing wastewater treatment system and technology |
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