CN112876008A - IC + A/O treatment process for nitrogen and phosphorus removal of sugarcane sugar production wastewater - Google Patents
IC + A/O treatment process for nitrogen and phosphorus removal of sugarcane sugar production wastewater Download PDFInfo
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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
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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
- 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
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
- C02F3/2873—Particular arrangements for anaerobic reactors with internal draft tube circulation
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
Abstract
The invention discloses an IC + A/O treatment process for nitrogen and phosphorus removal of sugarcane sugar production wastewater. The IC + A/O treatment process mainly comprises the following steps: after large-particle suspended matters and floating matters in the sugarcane sugaring wastewater are removed by a grating, the sugarcane sugaring wastewater enters a water collecting tank and an adjusting tank to adjust the pH value and the water temperature, effluent is subjected to biochemical treatment in an anaerobic tank and an aerobic tank in sequence, effluent after the aerobic biochemical treatment enters a secondary sedimentation tank to be subjected to mud-water separation, and water obtained by separation meets the discharge standard. An air floating fan, a jet aerator and an online dissolved oxygen instrument are arranged in the aerobic tank, the online dissolved oxygen instrument and the air floating fan are controlled in a linkage manner, and the aeration rate is regulated and controlled according to the dissolved oxygen amount. The anaerobic tank is internally provided with a microbial filler net, the microbial filler is made of local materials, and sludge generated by the treatment of the sugarcane sugar wastewater is selected for carbonization treatment to obtain the biological anaerobic tank. The IC + A/O treatment process provided by the invention has the advantages of excellent removal effect on organic matters, ammonia nitrogen and phosphorus in the wastewater, high removal efficiency, low comprehensive energy consumption and small environmental pollution through the action of microorganisms.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to an IC + A/O treatment process for nitrogen and phosphorus removal of sugarcane sugar production wastewater.
Background
The sugar production wastewater mainly comprises sugar cane sugar production wastewater, sugar beet, corn and other sugar production wastewater, the concentration of organic matters and nitrogen and phosphorus in the sugar production wastewater is high, if the sugar production wastewater is discharged into a water body without proper treatment, eutrophication of the water body and mass growth of algae are easily caused, and finally, regional water environment pollution is caused, and long-term development of enterprises is influenced and restricted; therefore, the method reduces the pollution load of the sugar refinery discharged into the environment, controls source pollution, and has important significance for protecting the water quality of the regional water body and improving the ecological environment.
At present, few research reports about sugarcane sugar manufacturing wastewater exist, but the treatment of sugar manufacturing wastewater such as beet and corn is reported; mainly adopts methods of IC + activated sludge tank, UASB + A/O, high-density sediment + ABR + A/O + air floatation method, IC reactor and UASB method, etc., and has good effect of removing COD, BOD and NH 3-N, SS in the wastewater. In the above A/O process for treating sugar-making wastewater, an aeration system is required to provide enough dissolved oxygen for microorganisms in an aerobic tank, the conventional aeration system in the aerobic tank is matched with a Roots blower and a microporous aerator, and the Roots blower has the defects of large volume, large floor area, large vibration, high noise, insufficient energy conservation and the like; the bubble that micropore aerator produced is less, but when handling high concentration waste water, and difficult maintenance, and easy jam reduces the treatment effeciency of waste water, and has increased the waste water treatment cost.
In the above treatment method, the biogas generated in the anaerobic process and the sludge generated in the aerobic process are both treated reasonably; the microorganisms do not have suitable growth conditions and the final removal of contaminants is not ideal. The invention provides an IC + A/O treatment process for nitrogen and phosphorus removal of sugarcane sugar production wastewater, which has the advantages of low energy consumption, high treatment efficiency, reasonable resource treatment and higher economic benefit and environmental benefit.
Disclosure of Invention
The invention aims to provide an IC + A/O treatment process for nitrogen and phosphorus removal of sugarcane sugar production wastewater, so as to solve the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: the IC + A/O treatment process for removing nitrogen and phosphorus from sugarcane sugar production wastewater mainly comprises the following steps: after the sugarcane sugar wastewater is homogenized in a homogenizing tank and the pH value of the sugarcane sugar wastewater is adjusted in an adjusting tank, effluent is subjected to biochemical treatment in an anaerobic tank and an aerobic tank in sequence, effluent after the aerobic biochemical treatment enters a secondary sedimentation tank for mud-water separation, and water obtained by separation meets the discharge standard.
The method comprises the following specific steps:
(1) filtering the sugarcane sugar wastewater by using a grating to remove large-particle suspended matters and floating matters, temporarily storing the effluent in a water collecting tank, allowing the effluent in the water collecting tank to enter an adjusting tank, adjusting the pH to 4.5-8.0 by using sodium hydroxide, and adjusting the temperature to 30-40 ℃;
(2) the effluent of the regulating reservoir enters an IC anaerobic reactor and is decomposed into micromolecular organic matters and methane by anaerobic bacteria under an anaerobic environment;
(3) the effluent of the IC anaerobic reactor enters an anoxic tank, and microorganisms decompose organic matters in the wastewater in an anoxic environment;
(4) the effluent of the anoxic tank enters an aerobic tank for aerobic biochemical treatment, the water in the aerobic tank flows back to the anoxic tank, and the reflux ratio is controlled to be 150-;
(5) the effluent of the aerobic tank enters a secondary sedimentation tank for mud-water separation, and the separated water enters a clean water tank to be discharged;
furthermore, the aerobic tank is provided with a jet aerator, an air floating fan is interlocked with the online dissolved oxygen meter, and the aeration rate is automatically regulated according to the dissolved oxygen amount.
Furthermore, the aerobic tanks are divided into two groups, and when the inlet flow is less than 20m3And in the hour, only primary aerobic biochemical treatment is carried out.
Further, biogas generated by anaerobic fermentation in the step (2) is subjected to torch combustion treatment, and odor is treated by a chemical washing tower and then is discharged after reaching the standard.
Further, the activated sludge separated in the secondary sedimentation tank in the step (5) flows back to the anoxic tank, the reflux ratio is controlled to be 80-100%, and denitrification treatment is carried out; and (3) the rest sludge enters a sludge return well, the sludge is conveyed to a concentration tank for concentration, and the sludge is dehydrated to the water content of less than 60% through a high-pressure plate-and-frame filter press after concentration to form a sludge cake.
Furthermore, when the COD of the effluent of the regulating tank is less than or equal to 1000mg/l, the effluent directly surpasses the IC anaerobic reactor and enters the anoxic tank.
Further, the anaerobic bacteria in the step (1) are any one or more of denitrifying bacteria, methanogen coccus and lactic acid bacteria; denitrifying bacilli are arranged in the anoxic pond.
The aerobic bacteria in the step (4) are mixed bacteria of nitrobacteria and bacillus.
Further, a filler net is fixedly installed in the anoxic pond, and the preparation method comprises the following steps:
s1, taking sludge generated by sugarcane sugar production wastewater, and placing the sludge in a nitrogen environment for a carbonization reaction at the high temperature of 700-1000 ℃ for 3-5h to obtain carbonized sludge; mixing carbonized sludge and KOH solution, carrying out reaming reaction for 1-2h, washing with dilute hydrochloric acid solution, washing with deionized water, and drying to obtain porous carbonized sludge with the length of 20-30mm and the thickness of 5-7 mm;
soaking the porous carbonized sludge in a sodium alginate solution, adsorbing for 5-7h, and freeze-drying to obtain a filler main body;
s2, placing the polyester fiber in a hydrochloric acid solution, carrying out acid etching treatment, drying, adding the polyester fiber into an aminobenzene sodium sulfonate solution, soaking for 4-6h, and naturally drying to obtain a modified polyester fiber;
s3, attaching the modified polyester fiber to the outer wall of the filler main body to form a filler net; and fixedly installing a plurality of groups of filler nets in the anoxic pond.
Further, the density of the carbonized sludge is 500-700kg/m3。
Compared with the prior art, the invention has the following beneficial effects: the invention provides an IC + A/O treatment process for nitrogen and phosphorus removal of sugarcane sugar production wastewater; the wastewater enters an IC anaerobic reactor after preliminary impurity removal, homogenization and pH and water temperature adjustment, macromolecular organic matters in the wastewater are decomposed into micromolecular organic matters by anaerobic bacteria under an anoxic environment, biogas generated by anaerobic fermentation is subjected to torch combustion treatment, and odor is treated by a chemical washing tower and then is discharged up to the standard. The wastewater containing the micromolecular organic matters enters an anoxic tank, the micromolecular organic matters are further degraded by bacteria in the anoxic tank and enter an aerobic tank for aerobic biochemical reaction; the aerobic tank selects the air floating fan and the jet aerator to be matched as the aeration device, and compared with the conventional Roots fan and the microporous aerator, the aerobic tank has the advantages of low energy consumption, small vibration, low noise, no blocking phenomenon and easy inspection and maintenance. The aeration efficiency of the air floating fan and the jet aerator is higher than that of the conventional air floating fan and jet aerator, so that air can be efficiently dispersed into micro bubbles, oxygen is diffused into water, the oxygen content in wastewater is increased, and sufficient dissolved oxygen is provided for biochemical reaction of aerobic bacteria; meanwhile, the activated sludge in the wastewater is ensured to be in a suspended state, and microorganisms in the activated sludge are fully contacted with the wastewater, so that the pollutant decomposition efficiency is improved.
In the invention, an overrun pipe is arranged at the water inlet end of the IC anaerobic reactor, and when the COD detection value of the inlet water quality is less than or equal to 1000mg/l, the overrun pipe directly surpasses the IC anaerobic reactor and enters an anoxic tank; determining whether PAC/PAM is required to be added in the inlet water of the secondary sedimentation tank for chemical dephosphorization according to the dephosphorization effect of the secondary sedimentation tank; the measures are helpful for reducing the total energy consumption of the device, improving the wastewater treatment efficiency and saving the production cost.
The method adopts local materials, sludge cakes generated by wastewater treatment are carbonized to be used as microbial fillers, and in order to increase the porosity and specific surface area of the fillers, KOH solution is further adopted to carry out activation and hole expansion treatment on the carbonized sludge; the pore-expanding treatment is carried out to soak and adsorb sodium alginate solution, and the sodium alginate solution can complex trace iron, zinc, magnesium and other ions in the wastewater to provide trace nutrient elements for the growth of microorganisms; on the other hand, oxygen-containing groups on the surface of the sodium alginate are beneficial to improving the compatibility of the carbonized sludge with microorganisms and bacteria, so that the adsorption efficiency of the carbonized sludge to the microorganisms is increased.
According to the invention, polyester fiber is adhered to the outer wall of the carbonized sludge to form a filler net, and the filler net has larger roughness and attachment area, so that the large-scale attachment and production of microorganisms on the filler net are facilitated; the polyester fiber is modified by sodium aminobenzenesulfonate in advance, and the adhesion between the polyester fiber and the carbonized sludge is improved through the hydrogen bond action of oxygen-containing groups on the surfaces of the polyester fiber and the carbonized sludge after the modification; in addition, the carbonized sludge is tightly coated in the polyester fiber, which is beneficial to the suspension dispersion of the carbonized sludge in the wastewater, provides a stable and proper growth environment for the microorganisms in the anoxic pond, and improves the degradation treatment of the microorganisms on the wastewater.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of the IC + A/O treatment process for nitrogen and phosphorus removal of wastewater from sugar production by sugarcane.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The IC + A/O treatment process for removing nitrogen and phosphorus from sugarcane sugar production wastewater mainly comprises the following steps: the method comprises the following specific steps:
(1) the sugarcane sugaring waste water filters through the grid and gets rid of large granule suspended solid and floater, goes out water and gets into and temporarily store in the catch basin, and play water among the catch basin gets into the equalizing basin, and it is respectively to detect quality of water pollutant content: the chemical oxygen demand COD is 6360mg/l, the ammonia nitrogen content is 48.5mg/l, the total phosphorus is 12.0mg/l, and the suspended matter is 184 mg/l; adjusting the pH to 4.5 by using sodium hydroxide, and adjusting the temperature to 35 ℃;
(2) the COD value of the effluent of the regulating tank is more than 1000mg/l, the effluent is directly discharged into an IC anaerobic reactor and is decomposed into micromolecular organic matters and methane by anaerobic bacteria under an anaerobic environment, the methane generated by anaerobic fermentation is burned by a torch, and the odor is treated by a chemical washing tower and then is discharged after reaching the standard;
(3) the effluent of the IC anaerobic reactor enters an anoxic tank to decompose organic matters in the wastewater in an anoxic environment;
(4) the online flow detection shows that the effluent flow of the anoxic tank is more than 20m3The water enters two groups of aerobic tanks for aerobic biochemical treatment, the aerobic tanks are provided with jet flow aerators, an air floating fan is interlocked with an online dissolved oxygen instrument, the aeration rate is automatically regulated according to the dissolved oxygen amount, and the dissolved oxygen amount of the water body is kept to be 0.08 mg/l; water in the aerobic tank flows back to the anoxic tank, and the reflux ratio is controlled to be 150%;
(5) the effluent of the aerobic tank enters a secondary sedimentation tank for mud-water separation, and the separated water enters a clean water tank to be discharged; the activated sludge separated in the secondary sedimentation tank flows back to the anoxic tank, the reflux ratio is controlled to be 100%, and denitrification treatment is carried out; and (3) the rest sludge enters a sludge return well, is conveyed to a sludge concentration tank for concentration, and is dehydrated to the water content of less than 60 percent through a high-pressure plate-and-frame filter press after concentration to form a sludge cake.
The aerobic tank is provided with a jet aerator, an air floating fan is interlocked with the online dissolved oxygen meter, and the aeration rate is automatically regulated according to the dissolved oxygen amount.
The anaerobic bacteria in the step (1) are any one or more of denitrifying bacteria, methanogen coccus and lactic acid bacteria; the aerobic bacteria in the step (4) are mixed bacteria of nitrobacteria and bacillus.
In the embodiment, the anaerobic bacteria are mixed bacteria of denitrifying bacteria, methanogen and methanococcus by mass of 2:1: 1; the aerobic bacteria are mixed bacteria of nitrobacteria and bacillus with the mass ratio of 1: 1.
Further, a filler net is fixedly installed in the anoxic pond, and the preparation method comprises the following steps:
s1, taking sludge generated by sugarcane sugar manufacturing wastewater, and carrying out carbonization reaction for 3h at a high temperature of 700 ℃ in a nitrogen environment to obtain carbonized sludge; mixing carbonized sludge and a KOH solution, carrying out reaming reaction for 1h, and then sequentially washing by using a dilute hydrochloric acid solution, washing by using deionized water and drying to obtain porous carbonized sludge with the length of 20-30mm and the thickness of 5-7 mm;
soaking the porous carbonized sludge in a sodium alginate solution, adsorbing for 5 hours, and freeze-drying to obtain a filler main body;
s2, placing the polyester fiber in a hydrochloric acid solution, carrying out acid etching treatment, drying, adding the polyester fiber into an aminobenzene sodium sulfonate solution, soaking for 4 hours, and naturally drying to obtain a modified polyester fiber;
s3, attaching the modified polyester fiber to the outer wall of the filler main body to form a filler net; and fixedly installing a plurality of groups of filler nets in the anoxic pond.
Example 2
The IC + A/O treatment process for removing nitrogen and phosphorus from sugarcane sugar production wastewater mainly comprises the following steps: the method comprises the following specific steps:
(1) the sugarcane sugaring waste water filters through the grid and gets rid of large granule suspended solid and floater, goes out water and gets into and temporarily store in the catch basin, and play water among the catch basin gets into the equalizing basin, and it is respectively to detect quality of water pollutant content: the chemical oxygen demand COD is 6360mg/l, the ammonia nitrogen content is 48.5mg/l, the total phosphorus is 12.0mg/l, and the suspended matter is 184 mg/l; adjusting the pH to 7.5 by using sodium hydroxide, and adjusting the temperature to 35 ℃;
(2) the COD value of the effluent of the regulating tank is more than 1000mg/l, the effluent is directly discharged into an IC anaerobic reactor and is decomposed into micromolecular organic matters and methane by anaerobic bacteria under an anaerobic environment, the methane generated by anaerobic fermentation is burned by a torch, and the odor is treated by a chemical washing tower and then is discharged after reaching the standard;
(3) the effluent of the IC anaerobic reactor enters an anoxic tank to decompose organic matters in the wastewater in an anoxic environment;
(4) the online flow detection shows that the effluent flow of the anoxic tank is more than 20m3H, entering two groups of aerobic tanks for aerobic biochemical treatmentThe oxygen pond is provided with a jet aerator, an air floating fan is interlocked with an online dissolved oxygen meter, the aeration rate is automatically regulated according to the dissolved oxygen amount, and the dissolved oxygen amount of the water body is kept to be 1.02 mg/l; water in the aerobic tank flows back to the anoxic tank, and the reflux ratio is controlled to be 160%;
(5) the effluent of the aerobic tank enters a secondary sedimentation tank for mud-water separation, and the separated water enters a clean water tank to be discharged; the activated sludge separated in the secondary sedimentation tank flows back to the anoxic tank, the reflux ratio is controlled to be 83%, and denitrification treatment is carried out; and (3) the rest sludge enters a sludge return well, is conveyed to a sludge concentration tank for concentration, and is dehydrated to the water content of less than 60 percent through a high-pressure plate-and-frame filter press after concentration to form a sludge cake.
The aerobic tank is provided with a jet aerator, an air floating fan is interlocked with the online dissolved oxygen meter, and the aeration rate is automatically regulated according to the dissolved oxygen amount.
The anaerobic bacteria in the step (1) are any one or more of denitrifying bacteria, methanogen coccus and lactic acid bacteria; the aerobic bacteria in the step (4) are mixed bacteria of nitrobacteria and bacillus.
In the embodiment, the anaerobic bacteria are mixed bacteria of denitrifying bacteria, methanogen and methanococcus by mass of 2:1: 1; the aerobic bacteria are mixed bacteria of nitrobacteria and bacillus with the mass ratio of 1: 1.
Further, a filler net is fixedly installed in the anoxic pond, and the preparation method comprises the following steps:
s1, taking sludge generated by sugarcane sugar manufacturing wastewater, placing the sludge in a nitrogen environment, and carrying out carbonization reaction for 4 hours at a high temperature of 870 ℃ to obtain carbonized sludge; mixing the carbonized sludge and a KOH solution, carrying out reaming reaction for 1.5h, and then sequentially washing by using a dilute hydrochloric acid solution, washing by using deionized water and drying to obtain porous carbonized sludge with the length of 26mm and the thickness of 6 mm;
soaking the porous carbonized sludge in a sodium alginate solution, adsorbing for 6 hours, and freeze-drying to obtain a filler main body;
s2, placing the polyester fiber in a hydrochloric acid solution, carrying out acid etching treatment, drying, adding the polyester fiber into an aminobenzene sodium sulfonate solution, soaking for 5 hours, and naturally drying to obtain a modified polyester fiber;
s3, attaching the modified polyester fiber to the outer wall of the filler main body to form a filler net; and fixedly installing a plurality of groups of filler nets in the anoxic pond.
Example 3
The IC + A/O treatment process for removing nitrogen and phosphorus from sugarcane sugar production wastewater mainly comprises the following steps: the method comprises the following specific steps:
(1) the sugarcane sugaring waste water filters through the grid and gets rid of large granule suspended solid and floater, goes out water and gets into and temporarily store in the catch basin, and play water among the catch basin gets into the equalizing basin, and it is respectively to detect quality of water pollutant content: the chemical oxygen demand COD is 6360mg/l, the ammonia nitrogen content is 48.5mg/l, the total phosphorus is 12.0mg/l, and the suspended matter is 184 mg/l; adjusting pH to 8.0 with sodium hydroxide, and adjusting temperature to 35 deg.C;
(2) the COD value of the effluent of the regulating tank is more than 1000mg/l, the effluent is directly discharged into an IC anaerobic reactor and is decomposed into micromolecular organic matters and methane by anaerobic bacteria under an anaerobic environment, the methane generated by anaerobic fermentation is burned by a torch, and the odor is treated by a chemical washing tower and then is discharged after reaching the standard;
(3) the effluent of the IC anaerobic reactor enters an anoxic tank to decompose organic matters in the wastewater in an anoxic environment;
(4) the online flow detection shows that the effluent flow of the anoxic tank is more than 5m3Entering two groups of aerobic tanks for aerobic biochemical treatment; the aerobic tank is provided with a jet aerator, an air floating fan is interlocked with an online dissolved oxygen meter, the aeration rate is automatically regulated according to the dissolved oxygen amount, and the dissolved oxygen amount of the water body is kept to be 1.5 mg/l; water in the aerobic tank flows back to the anoxic tank, and the reflux ratio is controlled to be 180%;
(5) the effluent of the aerobic tank enters a secondary sedimentation tank for mud-water separation, and the separated water enters a clean water tank to be discharged; the activated sludge separated in the secondary sedimentation tank flows back to the anoxic tank, the reflux ratio is controlled to be 90%, and denitrification treatment is carried out; and (3) the rest sludge enters a sludge return well, is conveyed to a sludge concentration tank for concentration, and is dehydrated to the water content of less than 60 percent through a high-pressure plate-and-frame filter press after concentration to form a sludge cake.
The anaerobic bacteria in the step (1) are any one or more of denitrifying bacteria, methanogen coccus and lactic acid bacteria; the aerobic bacteria in the step (4) are mixed bacteria of nitrobacteria and bacillus.
In the embodiment, the anaerobic bacteria are mixed bacteria of denitrifying bacteria, methanogen and methanococcus by mass of 2:1: 1; the aerobic bacteria are mixed bacteria of nitrobacteria and bacillus with the mass ratio of 1: 1.
Further, a filler net is fixedly installed in the anoxic pond, and the preparation method comprises the following steps:
s1, taking sludge generated by sugarcane sugar manufacturing wastewater, and carrying out carbonization reaction for 5 hours at the high temperature of 1000 ℃ in a nitrogen environment to obtain carbonized sludge; mixing carbonized sludge and a KOH solution, carrying out reaming reaction for 2 hours, and then sequentially washing by using a dilute hydrochloric acid solution, washing by using deionized water and drying to obtain porous carbonized sludge with the length of 20-30mm and the thickness of 5-7 mm;
soaking the porous carbonized sludge in a sodium alginate solution, adsorbing for 7 hours, and freeze-drying to obtain a filler main body;
s2, placing the polyester fiber in a hydrochloric acid solution, carrying out acid etching treatment, drying, adding the polyester fiber into an aminobenzene sodium sulfonate solution, soaking for 6 hours, and naturally drying to obtain a modified polyester fiber;
s3, attaching the modified polyester fiber to the outer wall of the filler main body to form a filler net; and fixedly installing a plurality of groups of filler nets in the anoxic pond.
Comparative example 1
The IC + A/O treatment process for removing nitrogen and phosphorus from sugarcane sugar production wastewater mainly comprises the following steps: the method comprises the following specific steps:
(2) the sugarcane sugaring waste water filters through the grid and gets rid of large granule suspended solid and floater, goes out water and gets into and temporarily store in the catch basin, and play water among the catch basin gets into the equalizing basin, and it is respectively to detect quality of water pollutant content: the chemical oxygen demand COD is 6360mg/l, the ammonia nitrogen content is 48.5mg/l, the total phosphorus is 12.0mg/l, and the suspended matter is 184 mg/l; adjusting the pH to 7.5 by using sodium hydroxide, and adjusting the temperature to 35 ℃;
(2) the COD value of the effluent of the regulating tank is more than 1000mg/l, the effluent is directly discharged into an IC anaerobic reactor and is decomposed into micromolecular organic matters and methane by anaerobic bacteria under an anaerobic environment, the methane generated by anaerobic fermentation is burned by a torch, and the odor is treated by a chemical washing tower and then is discharged after reaching the standard;
(3) the effluent of the IC anaerobic reactor enters an anoxic tank to decompose organic matters in the wastewater in an anoxic environment;
(4) the online flow detection shows that the effluent flow of the anoxic tank is more than 20m3The water enters two groups of aerobic tanks for aerobic biochemical treatment, the aerobic tanks are provided with microporous aerators, and a Roots blower controls the aeration rate and keeps the dissolved oxygen of the water body at 1.02 mg/l; water in the aerobic tank flows back to the anoxic tank, and the reflux ratio is controlled to be 160%;
(5) the effluent of the aerobic tank enters a secondary sedimentation tank for mud-water separation, and the separated water enters a clean water tank to be discharged; and (3) the sludge separated in the secondary sedimentation tank enters a sludge return well, is conveyed to a sludge concentration tank for concentration, and is dehydrated to the water content of less than 60% through a high-pressure plate-and-frame filter press after concentration to form a sludge cake.
The rest is the same as the embodiment 2;
comparative example 2
The IC + A/O treatment process for removing nitrogen and phosphorus from the sugarcane sugar production wastewater comprises the following steps: the method comprises the following specific steps:
(1) the sugarcane sugaring waste water filters through the grid and gets rid of large granule suspended solid and floater, goes out water and gets into and temporarily store in the catch basin, and play water among the catch basin gets into the equalizing basin, and it is respectively to detect quality of water pollutant content: the chemical oxygen demand COD is 6360mg/l, the ammonia nitrogen content is 48.5mg/l, the total phosphorus is 12.0mg/l, and the suspended matter is 184 mg/l; adjusting the pH to 7.5 by using sodium hydroxide, and adjusting the temperature to 35 ℃;
(2) the details of (5) are the same as those of example 2.
In the comparative example, the bacteria in the anoxic tank are fixed inside the anoxic tank by the filler, and the preparation method of the filler is as follows:
taking sludge generated by sugarcane sugar production wastewater, and placing the sludge in a nitrogen environment, and carrying out carbonization reaction for 4 hours at the high temperature of 850 ℃ to obtain carbonized sludge; mixing carbonized sludge and KOH solution, carrying out reaming reaction for 1.5h, washing by dilute hydrochloric acid solution, washing by deionized water and drying in sequence to obtain porous carbonized sludge with the length of 20-30mm and the thickness of 5-7 mm;
soaking the porous carbonized sludge in a sodium alginate solution, adsorbing for 6 hours, and freeze-drying to obtain a filler; the filler is directly placed in an anoxic tank.
Examples of the experiments
Taking the sugarcane sugaring wastewater treated in the clean water tank of the embodiment 1-3 and the comparative example 1-2, detecting COD (chemical oxygen demand), ammonia nitrogen, total phosphorus and suspended matter content of water by using a full-automatic water quality analyzer, wherein the detection result is shown in a table 1, and the calculated value of the pollutant removal rate is shown in a table 2;
| chemical oxygen demand COD, mg/l | Content of Ammonia Nitrogen, mg/l | Total phosphorus in mg/l | Suspended matter content SS, mg/l | |
| Quality of inlet water | 6360 | 48.5 | 12.0 | 184 |
| Example 1 | 65.3 | 3.2 | 1.1 | 7.2 |
| Example 2 | 63.1 | 2.8 | 0.9 | 5.6 |
| Example 3 | 63.5 | 3.0 | 1.0 | 6.7 |
| Comparative example 1 | 95.8 | 3.7 | 1.4 | 7.9 |
| Comparative example 2 | 197.6 | 5.9 | 2.2 | 8.3 |
TABLE 1
| Chemical oxygen demand removal rate% | Ammonia nitrogen removal rate% | Total phosphorus removal rate% | SS removal rate% | |
| Example 1 | 98.97 | 93.40 | 90.83 | 96.08 |
| Example 2 | 99.01 | 94.22 | 92.50 | 96.96 |
| Example 3 | 99.00 | 93.81 | 91.67 | 96.36 |
| Comparative example 1 | 98.49 | 92.37 | 88.33 | 95.71 |
| Comparative example 2 | 96.89 | 87.84 | 91.67 | 95.49 |
TABLE 2
As can be seen from tables 1 and 2, the Chemical Oxygen Demand (COD), ammonia nitrogen content, total phosphorus content and suspended matter content in the sugarcane sugar production wastewater treated in examples 1-3 are all obviously reduced, wherein the removal rate of the Chemical Oxygen Demand (COD) can reach more than 98.9%, the removal rate of ammonia nitrogen can reach more than 93.4%, the removal rate of total phosphorus can reach more than 90%, and the removal rate of suspended matter (SS) can reach 96%, so that the IC + A/O treatment process in the invention has excellent removal effect on organic matters, nitrogen and phosphorus and has high removal efficiency.
Compared with the embodiment 2, the aeration system in the aerobic tank adopts the conventional roots blower and the microporous aerator to be matched, the roots blower and the microporous aerator have larger energy consumption and poorer oxygenation effect than the air floating blower and the jet aerator, the decomposition and removal effects of aerobic bacteria in the aerobic tank are weakened, the activated sludge is not subjected to reflux denitrification treatment, and the COD, the ammonia nitrogen content and the total phosphorus removal rate of the final effluent quality are slightly lower than those of the embodiment 2.
Compared with the embodiment 2, the aeration system in the aerobic tank adopts the conventional Roots blower and the microporous aerator to be matched, and when the bacterial filler of the anoxic tank is prepared, the modified polyester fiber is not adopted to be attached to the outer wall of the filler column, a filler net is not formed, the attachment growth of microorganisms is weakened, so that the removal effect on organic matters and nitrogen and phosphorus in wastewater is weakened, and the removal rate of pollutants is lower than that of the embodiment 2.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An IC + A/O treatment process for removing nitrogen and phosphorus from sugarcane sugar production wastewater, which is characterized in that; the IC + A/O treatment process mainly comprises the following steps: after the sugarcane sugar wastewater is treated by adjusting the pH value and the water temperature in the adjusting tank, the effluent is subjected to biochemical treatment in the anaerobic tank and the aerobic tank in sequence, the effluent after the aerobic biochemical treatment enters the secondary sedimentation tank for sludge-water separation, and the water obtained by separation meets the discharge standard.
2. The IC + A/O treatment process for nitrogen and phosphorus removal of wastewater from sugar production by sugarcane according to claim 1, characterized in that; the method comprises the following specific steps:
(1) filtering the sugarcane sugar wastewater by using a grating to remove large-particle suspended matters and floating matters, temporarily storing the effluent in a water collecting tank, allowing the effluent in the water collecting tank to enter an adjusting tank, adjusting the pH to 4.5-8.0 by using sodium hydroxide, and adjusting the temperature to 30-40 ℃;
(2) the effluent of the regulating reservoir enters an IC anaerobic reactor and is decomposed into micromolecular organic matters and methane by anaerobic bacteria under an anaerobic environment;
(3) the effluent of the IC anaerobic reactor enters an anoxic tank, and microorganisms decompose organic matters in the wastewater in an anoxic environment;
(4) the effluent of the anoxic tank enters an aerobic tank for aerobic biochemical treatment, the water in the aerobic tank flows back to the anoxic tank, and the reflux ratio is controlled to be 150-;
(5) and (4) the effluent of the aerobic tank enters a secondary sedimentation tank for mud-water separation, and the separated water enters a clean water tank to be discharged.
3. The IC + A/O treatment process for nitrogen and phosphorus removal of wastewater from sugar production by sugarcane according to claim 2, characterized in that; the aerobic tank is provided with a jet aerator, an air floating fan is interlocked with the online dissolved oxygen meter, and the aeration rate is automatically regulated according to the dissolved oxygen amount.
4. The IC + A/O treatment process for nitrogen and phosphorus removal of wastewater from sugar production by sugarcane according to claim 2, characterized in that; the aerobic tanks are divided into two groups, and when the inlet flow is less than 20m3And in the hour, only primary aerobic biochemical treatment is carried out.
5. The IC + A/O treatment process for nitrogen and phosphorus removal of wastewater from sugar production by sugarcane according to claim 2, characterized in that; in the step (2), the biogas is subjected to torch combustion treatment, and the odor is treated by a chemical washing tower and then is discharged after reaching the standard.
6. The IC + A/O treatment process for nitrogen and phosphorus removal of wastewater from sugar production by sugarcane according to claim 2, characterized in that; the activated sludge separated in the secondary sedimentation tank in the step (5) flows back to the anoxic tank, the reflux ratio is controlled to be 80-100%, and denitrification treatment is carried out; and (3) the rest sludge enters a sludge return well, is conveyed to a sludge concentration tank for concentration, and is dehydrated to the water content of less than 60 percent through a high-pressure plate-and-frame filter press after concentration to form a sludge cake.
7. The IC + A/O treatment process for nitrogen and phosphorus removal of wastewater from sugar production by sugarcane according to claim 2, characterized in that; when the COD of the effluent of the regulating tank is less than or equal to 1000mg/l, the effluent directly surpasses the IC anaerobic reactor and enters the anoxic tank.
8. The IC + A/O treatment process for nitrogen and phosphorus removal of wastewater from sugar production by sugarcane according to claim 2, characterized in that; the anaerobic bacteria in the step (1) are any one or more of denitrifying bacteria, methanogen coccus and lactic acid bacteria;
the aerobic bacteria in the step (4) are mixed bacteria of nitrobacteria and bacillus.
9. The IC + A/O treatment process for nitrogen and phosphorus removal of wastewater from sugar production by sugarcane according to claim 2, characterized in that; the preparation method comprises the following steps:
s1, taking sludge generated by sugarcane sugar production wastewater, and placing the sludge in a nitrogen environment for a carbonization reaction at the high temperature of 700-1000 ℃ for 3-5h to obtain carbonized sludge; mixing carbonized sludge and KOH solution, carrying out reaming reaction for 1-2h, washing with dilute hydrochloric acid solution, washing with deionized water, and drying to obtain porous carbonized sludge with the length of 20-30mm and the thickness of 5-7 mm;
soaking the porous carbonized sludge in a sodium alginate solution, adsorbing for 5-7h, and freeze-drying to obtain a filler main body;
s2, placing the polyester fiber in a hydrochloric acid solution, carrying out acid etching treatment, drying, adding the polyester fiber into an aminobenzene sodium sulfonate solution, soaking for 4-6h, and naturally drying to obtain a modified polyester fiber;
s3, attaching the modified polyester fiber to the outer wall of the filler main body to form a filler net; and fixedly installing a plurality of groups of filler nets in the anoxic pond.
10. The IC + A/O treatment process for nitrogen and phosphorus removal of wastewater from sugar production by sugarcane according to claim 9, characterized in that; the density of the carbonized sludge is 500-700kg/m3。
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658083A (en) * | 2012-04-28 | 2012-09-12 | 天津城市建设学院 | Modified sludge activated carbon for removing multiple heavy metals in sewage and sludge simultaneously |
| CN106867607A (en) * | 2017-03-28 | 2017-06-20 | 常州大学 | A kind of preparation method of modified composite biological packing |
| CN109092249A (en) * | 2018-10-08 | 2018-12-28 | 东北农业大学 | A kind of preparation method of the non-sintered magnetized sludge carbon paramagnetic carrier for reinforced sewage biological treatment |
| CN110386741A (en) * | 2019-08-16 | 2019-10-29 | 晨光生物科技集团股份有限公司 | A kind of stevioside production wastewater treatment recoverying and utilizing method |
| AU2020102429A4 (en) * | 2020-08-06 | 2020-11-05 | Jinyimeng Group Co., Ltd. | Treatment device for high-concentration of organic wastewater generated by using cassava as raw material to produce alcohol |
-
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- 2021-04-22 CN CN202110434505.9A patent/CN112876008A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658083A (en) * | 2012-04-28 | 2012-09-12 | 天津城市建设学院 | Modified sludge activated carbon for removing multiple heavy metals in sewage and sludge simultaneously |
| CN106867607A (en) * | 2017-03-28 | 2017-06-20 | 常州大学 | A kind of preparation method of modified composite biological packing |
| CN109092249A (en) * | 2018-10-08 | 2018-12-28 | 东北农业大学 | A kind of preparation method of the non-sintered magnetized sludge carbon paramagnetic carrier for reinforced sewage biological treatment |
| CN110386741A (en) * | 2019-08-16 | 2019-10-29 | 晨光生物科技集团股份有限公司 | A kind of stevioside production wastewater treatment recoverying and utilizing method |
| AU2020102429A4 (en) * | 2020-08-06 | 2020-11-05 | Jinyimeng Group Co., Ltd. | Treatment device for high-concentration of organic wastewater generated by using cassava as raw material to produce alcohol |
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