CN105753271A - Biological filter-biological contact oxidation-steel slag absorption sewage treatment system and method for sewage treatment by utilizing system - Google Patents
Biological filter-biological contact oxidation-steel slag absorption sewage treatment system and method for sewage treatment by utilizing system Download PDFInfo
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- CN105753271A CN105753271A CN201610313658.7A CN201610313658A CN105753271A CN 105753271 A CN105753271 A CN 105753271A CN 201610313658 A CN201610313658 A CN 201610313658A CN 105753271 A CN105753271 A CN 105753271A
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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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
- C02F3/302—Nitrification and denitrification treatment
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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
- C02F3/308—Biological phosphorus removal
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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Abstract
The invention provides a biological filter-biological contact oxidation-steel slag absorption sewage treatment system and a method for sewage treatment by utilizing the system. The system comprises a biological filter, a biological contact oxidation tank, a hydraulic circulating pump, an aerator pipe, an aeration pump and a precipitation tank and further comprises an adsorption phosphorus removal tank with a steel slag filling layer arranged therein; the biological filter is provided with a water inlet, and a water outlet of the biological filter is communicated with the biological contact oxidation tank; the biological contact oxidation tank comprises an aerobic zone and an anaerobic zone; the hydraulic circulating pump is communicated with the aerobic zone and the anaerobic zone; the aerator pipe is arranged at the bottom of the aerobic zone; the aeration pump is connected with the aerator pipe to realize aeration; the biological contact oxidation tank is communicated with a water inlet of the precipitation tank, a water outlet of the precipitation tank is communicated with a water inlet of the adsorption phosphorus removal tank; the adsorption phosphorus removal tank is provided with a water outlet. According to the method for sewage treatment by utilizing the system, the organic matter removal, nitrogen removal and phosphorous removal effects are realized.
Description
Technical field
The invention belongs to water environment protection research and application, be specifically related to a kind of biofilter-bio-contact oxidation-slag adsorption sewage treatment system and the method for sewage disposal thereof.
Background technology
Along with the quickening of China's Development of China's Urbanization, township enterprise develops rapidly, and town sewage discharge capacity is also continuously increased.Yet with the outdated ideas of past " reconstruction sets, light environmental protection ", cities and towns infrastructure construction lags far behind urban construction, lacks necessary sewage collection system and sewage treatment facility.The unordered sinuous flow of sewage, the most directly pollutes samll cities and towns self ecological environment, and causes the severe contamination of river, Lake Water Body, it has also become the important polluter of regional water environment.
At present, China's urban wastewater treatment applicable technology is the most immature, and the more flourishing urban wastewater treatment firm of part continues to use the Technology of the big-and-middle-sized sewage treatment plant in city.But the samll cities and towns that development is fallen behind, the problems such as, equipment investment big by capital cost is big, operational management lacks experienced person, technological process is complicated restrict, and these process techniques and are difficult to be put into practice in samll cities and towns.
Therefore, little for Small Town Wastewater discharge capacity, dispersion is wide, water quality and quantity changes greatly, collect difficulty height, nitrogen, phosphorus and suspension content height, be substantially free of the feature of heavy metal ion and other poisonous and harmful substances, simultaneously take account of objective economic technology, management personnel's aspect, some medium and small sewage integrated treatment equipments differed from one another arise at the historic moment, and the sanitary sewage of samll cities and towns is had good treatment effect.
Existing Small Town Wastewater integrated apparatus is by structurally merging multiple techniques, sewage is processed within same equipment by combination, there is the advantages such as the construction period is short, small investment, occupation of land province, high treating effect, energy consumption is low, management is easy, mainly have: A/0 integrated apparatus, SBR sequencing batch reactor, integrated film bioreactor etc..But, these integrated apparatus majority techniques remain and traditional treatment method are combined, and there is the deficiencies such as technique unit is many, structure is the compactest, auxiliary device is many；And most integrated apparatus are mainly with the Organic substance in sewage for processing object, and ignore dephosphorization denitrogenation, and in the face of the most serious body eutrophication problem, these devices are difficult to meet process requirement.
Summary of the invention
For deficiencies of the prior art, the technical problem to be solved in the present invention is: for existing Small Town Wastewater integrated treatment unit mainly with dirty Organic substance in water for processing object, and ignore the weak point of sewage water dephosphorization denitrification, and provide a kind of and can realize organic matter removal, biological nitrification and denitrification, biological phosphate-eliminating and the biofilter-bio-contact oxidation-slag adsorption sewage treatment system of adsorption and dephosphorization synchronization process effect and the method for sewage disposal thereof simultaneously.
Realize above-mentioned purpose, the present invention adopts the following technical scheme that a kind of biofilter-bio-contact oxidation-slag adsorption sewage treatment system, including biofilter, biological contact oxidation pond, Hydraulic Circulation pump, aeration tube, aeration pump and sedimentation tank, also include the adsorption and dephosphorization pond being internally provided with slag packing layer；Described biofilter is provided with water inlet, the outlet of biofilter is connected with described biological contact oxidation pond, described biological contact oxidation pond includes aerobic zone and anaerobic zone, described Hydraulic Circulation pump connects described aerobic zone and anaerobic zone, described aeration tube is arranged on bottom described aerobic zone, described aeration pump is connected to realize aeration with described aeration tube, described biological contact oxidation pond is connected with the water inlet of sedimentation tank, the outlet of described sedimentation tank is connected with the water inlet in described adsorption and dephosphorization pond, and described adsorption and dephosphorization pond is provided with outlet.
When sewage disposal system of the present invention uses, sewage enters biofilter, in biofilter, on floating stuffing, the Degradation of microorganism is gone down after the partial organic substances in scrubbing water, pump into biological contact oxidation pond, alternately anaerobic-aerobic reaction is carried out under the circulation of Hydraulic Circulation pump, by the effect of aerobic bacteria and anaerobe to remove the Organic substance in sewage, nitrogen and phosphorus, the water outlet of biological contact oxidation pond is introduced in sedimentation tank and realizes mud-water separation, clear water after mud-water separation is introduced in adsorption and dephosphorization pond, under the effect of slag filler, the phosphorus in sewage is carried out degree of depth removal, enable the phosphorus in sewage to reach effectively to remove, water after process is discharged through outlet pipe, complete sewage disposal process.
Further, described biofilter is provided above water distributor of boring a hole, and described perforation water distributor is connected with the water inlet of biofilter.As such, it is possible to enable treatment sewage to be evenly distributed in surface, biofilter, having bigger contact area with the floating stuffing in biofilter, can preferably be degraded by microorganisms organics removal.
As optimization, described biofilter is arranged on the top of described biological contact oxidation pond.This way it is not necessary to use water pump only just can directly be introduced the water in biological contact oxidation pond by the gravity of water outlet, and biofilter being arranged on top, more save the floor space of complete equipment, the original position collection being more suitable for sewage processes.
As another optimization, described biological contact oxidation pond is the overall annular oxidation ditch structure in central authorities' island, and described Center Island is provided with described sedimentation tank and described adsorption and dephosphorization pond.So, contact-oxidation pool, sedimentation tank, adsorption and dephosphorization pond can be collected in one and process in pond, save occupation of land space, and use such central authorities island structure can make to be formed around Center Island the Aerobic-anaerobic stream of contact-oxidation pool, it is possible to promote that sewage constantly circulates and carry out anaerobic-aerobic reaction.
Further, multiple rows of slag packing layer it is disposed with along described adsorption and dephosphorization pond water inlet to outlet direction.So, water (flow) direction is provided with multiple rows of slag packing layer, the bulk density of slag can be reduced, make sewage bigger with the contact area of slag, dephosphorization efficiency can be effectively improved, make phosphor-removing effect more preferable.
As optimization, the slag filled in described adsorption and dephosphorization pond is for processing 24 h, and the modified steel scoria obtained after dry 1 h at 700 DEG C through aqueous slkali soaking.Modified steel scoria after so processing is loose porous, specific surface area big, has more preferable Adsorption effect to the phosphorus in sewage.
The method using above-mentioned biofilter-bio-contact oxidation-slag adsorption sewage treatment system to carry out sewage disposal, comprises the steps:
1) sewage is introduced dross removing device and removes the suspended impurity in sewage；
2) sewage after step 1) being processed imports in regulating reservoir and regulates and stores；
3) by step 2) regulate and store after water outlet pump in described biofilter, remove partial organic substances in water by the Degradation of microorganism on floating stuffing in biofilter；
4) water outlet after step 3) being processed introduces in described biological contact oxidation pond, alternately anaerobic-aerobic reaction is carried out under the effect of Hydraulic Circulation pump, anti-nitration reaction and the anaerobic phosphorus release reaction of nitrogen is completed under the anaerobe effect of anaerobic zone, complete the nitration reaction of nitrogen under the aerobic bacteria effect of aerobic zone, aerobic excess inhales phosphorus reaction and organic matter degradation reaction, removes Organic substance, nitrogen and the phosphorus in sewage；
5) water outlet after step 4) being processed introduces in sedimentation tank, it is achieved mud-water separation；
6) water outlet after step 5) being processed introduces in described adsorption and dephosphorization pond, utilizes slag filler that the phosphorus in sewage is carried out degree of depth adsorption treatment.
Use such method that sewage is processed: to first pass through dross removing device and remove the bulky grain float contained in sewage, prevent float from blocking hole between water pipe and filler in subsequent treatment；Sewage after removing oil removal again introduces after regulating inflow and water quality in regulating reservoir and is passed through in biofilter, utilizes the effect of biofilter and biological contact oxidation pond the Organic substance in sewage, nitrogen to be removed, and remove fraction P elements；Further the sewage after catalytic oxidation is passed through in sedimentation tank the mud removed in sewage, it is achieved mud-water separation；Finally sewage is passed through in adsorption and dephosphorization pond, utilizes the adsorption of slag, the P elements in sewage is carried out degree of depth removal process, remove the most of P elements in sewage.Use such method to realize organic removal, biological nitrification and denitrification denitrogenation processing, biological phosphate-eliminating and adsorption and dephosphorization to synchronize to carry out, make the sewage after process disclosure satisfy that " urban wastewater treatment firm pollutant emission standard " one-level emission standard A.
Further, in step 3), the hydraulic detention time of biofilter is 2 ~ 6 hours.As such, it is possible to it is more thorough to make the Organic substance in sewage degrade under microbial action in biofilter, reach more preferable wastewater treatment efficiency.
Further, the hydraulic detention time of step 4) biological contact oxidation pond is 10 ~ 24 hours, and running gas-water ratio is 9 ~ 15, and hydraulic load is 0.075 ~ 0.175m/(m2H).Such condition is used in biological contact oxidation pond, impurity in sewage can be enable to carry out sufficient aerobic-anaerobic circular response, being more beneficial for completing the anti-nitration reaction of nitrogen and anaerobic phosphorus release reaction in anaerobic district, the nitration reaction and the aerobic excess that complete nitrogen under the aerobic bacteria effect of aerobic zone inhale phosphorus reaction.
As optimization, step 6) adsorption and dephosphorization pond use 1 ~ 5 g slags to carry out the filling of slag packing layer according to often processing 100 mL waste water.Use such slag usage amount, the P elements in sewage can be enable the most adsorbed, make phosphorus element content in water outlet lower, it is not necessary to carry out the dephosphorization process of follow-up complexity.
Compared to existing technology, there is advantages that
1, microbial degradation, precipitate and separate, slag adsorption are combined in a rotary island rectangular reactor by the present invention, organic removal, biological nitrification and denitrification, biological phosphate-eliminating and adsorption and dephosphorization is made to synchronize to carry out, give full play to respective advantage, realize the collection on the spot of samll cities and towns' decentralized type sewage to process, make the effluent quality after process meet " urban wastewater treatment firm pollutant emission standard " (GB
18918-2002) one-level A discharge standard.
2, sewage disposal system of the present invention can use integrated module to design, it is possible to reply different disposal scale and the process requirement of orographic condition neatly, and operational management is convenient, and capital expenditure and operation cost of equipment are low, and technique is applied widely.
3, in sewage disposal system of the present invention, the filler of biofilter and biological contact oxidation pond is respectively floating stuffing and 3 D elastic filler, there is the advantages such as easy to be filmed, biological activity is high, specific surface area is big, be not easily blocked, therefore the capacity of resisting impact load of reactor is strong, good sewage processing effect, is suitable for the urban wastewater treatment that water quality and quantity daily variation factor is big.
4, sewage disposal system sludge yield of the present invention few, without the anxiety of sludge bulking, without setting sludge reflux, reduce the scruple that later stage sludge treatment is difficult, also reduce operating cost simultaneously.
5, the present invention uses trade waste slag as dephosphorization adsorbent, utilize its good absorption property and wide material sources, compared in prior art only with achieving more preferable phosphor-removing effect for biological contact oxidation process dephosphorization, and slag not only saves slag and disposes expense as waste water treating agent, reduce environmental pollution, make slag be able to recycling, also achieve waste water control simultaneously, be to kill two birds with one stone.
6, sewage water treatment method of the present invention, without sewage is carried out special pre-treatment or post-processing step, only sewage is introduced sewage disposal system of the present invention, and is controlled i.e. can reach high-quality water treatment efficiency to the treatment conditions in running, the simpler convenience of water treatment procedure.
Accompanying drawing explanation
Fig. 1 is the floor map of sewage disposal system；
Fig. 2 is the profile of sewage disposal system.
Detailed description of the invention
Below in conjunction with specific embodiment and Figure of description, the present invention is described in further detail.The implementation case is implemented under premised on the technology of the present invention, now provides detailed embodiment and concrete operating process to illustrate that the present invention is creative, but protection scope of the present invention is not limited to below example.
nullWhen being embodied as，As shown in Fig. 1 ~ Fig. 2，A kind of biofilter-bio-contact oxidation-slag adsorption sewage treatment system，Including biofilter 1、Biological contact oxidation pond 2、Hydraulic Circulation pump 3、Aeration tube 4、Aeration pump 5、Sedimentation tank 6，Also include the adsorption and dephosphorization pond 7 being internally provided with slag packing layer，The water inlet of described biofilter 1 can be provided with water inlet pipe 8，The outlet of biofilter 1 is connected with described biological contact oxidation pond 2 by pipeline，Described biological contact oxidation pond 2 is divided into aerobic zone 9 and anaerobic zone 10，Described Hydraulic Circulation pump 3 connects described aerobic zone 9 and anaerobic zone 10，Described aeration tube 4 is arranged on bottom described aerobic zone 9，Described aeration pump 5 is connected to realize aeration with described aeration tube 4，Described biological contact oxidation pond 2 is connected by the water inlet of pipeline with sedimentation tank 6，The outlet of described sedimentation tank 6 is connected with the water inlet in described adsorption and dephosphorization pond 7，It is provided with outlet pipe 11 bottom described adsorption and dephosphorization pond 7.
In view of pending sewage contains bulky grain float, and carry out sewage disposal to enable sewage to flow into biofilter incessantly, it is also provided with dross removing device 12(preferred grid pond) and regulating reservoir 13, the outlet of described dross removing device 12 is connected with the water inlet of regulating reservoir 13, and the outlet of described regulating reservoir 13 is connected with biofilter 1 by water inlet pipe 8.
In order to enable treatment sewage to be evenly distributed in surface, biofilter 1, with the floating stuffing in biofilter 1, there is bigger contact area, described biofilter 1 be provided above bore a hole water distributor 14, described perforation water distributor 14 is connected with described water inlet pipe 8.
In order to make sewage in adsorption and dephosphorization pond bigger with the contact area of slag, reduce the bulk density of slag, be effectively improved dephosphorization efficiency, be disposed with multiple rows of slag packing layer 15 along described adsorption and dephosphorization pond 7 water inlet to outlet direction, make phosphor-removing effect more preferable.
In order to make the phosphorus ligands in sewage further, slag in described adsorption and dephosphorization pond 7 can use and process 24 h through aqueous slkali soaking, and the modified steel scoria obtained after being dried 1 h at 700 DEG C, such modified steel scoria is loose porous, specific surface area big, has more preferable adsorption and dephosphorization effect.
In order to avoid using water pump, and save the floor space of complete equipment, make it be more applicable for the original position collection of sewage to process, described biofilter 1 is arranged on the top of described biological contact oxidation pond 2, the most only just can directly be introduced the water in biological contact oxidation pond 2 by the gravity of biofilter 1 water outlet, save the energy and space.
In order to save occupation of land space further, and make contact oxidation more complete, described biological contact oxidation pond 2 is designed as the overall annular oxidation ditch structure in central authorities' island, described sedimentation tank 6 and described adsorption and dephosphorization pond 7 it is provided with on described Center Island, so can collect in one process in pond with contact-oxidation pool, sedimentation tank, adsorption and dephosphorization pond, and make to be formed around Center Island the Aerobic-anaerobic stream of contact-oxidation pool, it is possible to promote that sewage constantly circulates and carry out anaerobic-aerobic reaction.
In order to improve precipitation process efficiency, and make the floor space of equipment little further, inclined-plate clarifying basin can be selected, water outlet after biological contact oxidization treatment enters from the water distributing area 16 of inclined-plate clarifying basin, realizing mud-water separation through swash plate district 17, the clear water after separation enters clear water zone 18, and introduces in adsorption and dephosphorization pond 7 by pipeline further, mud separates to be deposited to storage bucket 19, and storage bucket 19 is provided with mud discharge pipe in order to discharge mud.
Biofilter 1 is filled with to have specific surface area big, anti-impact force is strong, it is prone to biofilm, the floating stuffing of biological activity advantages of higher, floating stuffing 20 in order to avoid filling in biofilter is not taken away by current when processing with water outlet, is provided with the supporting layer 21 in order to support floating stuffing 20 in the bottom of biofilter 1；It is further ensured that the aeration effect in the processing procedure of biofilter 1, some row's natural ventilation holes it are provided with to realize gravity-flow ventilation aeration in the side of biofilter 1, as optimization, the gross area of described natural ventilation hole accounts for the 3% of biofilter 1 sectional area, for dissolved oxygen needed for growth of microorganism, it is ensured that preferably biological treatment effect.
Biological contact oxidation pond 2 aerobic zone 9 and anaerobic zone 10 are equipped with and are prone to biofilm, the impact of resistance to high load capacity, high treating effect, length in service life, the 3 D elastic filler 22 that is not easily blocked, hang with aerobic microbiological on 3 D elastic filler 22 respectively in aerobic zone, hang with anaerobe in anaerobic zone, to realize sewage circulation Aerobic-anaerobic reaction in biological contact oxidation pond.
Being described in detail the method using the present embodiment equipment to process sewage below, use students' dormitory sanitary sewage to process in following embodiment, in processing procedure, aeration pump rated discharge amount arranges 300
L/min。
Embodiment
1
The inventive method is used to process students' dormitory sanitary sewage, sewage former water quality situation: CODcr: 283mg/L, NH+-N: 34mg/L, TN:53 mg/L, TP: 3.6mg/L.
1) students' dormitory sanitary sewage through tubing is unified collect after import anaerobic tank and carry out preliminary filtration, precipitate and hydrolyze, then by pipeline, septic tank effluent is drained to grid pond；
2), after removing the suspended impurity in sewage in grid pond, import in regulating reservoir and regulate and store；
3) with water pump by the sewage lifting in regulating reservoir to biofilter, surface, biofilter is dispensed in equably by perforation water distributor, the HRT of biofilter is 5.5 hours, and the Degradation of the microorganism through being attached on floating stuffing removes partial organic substances in sewage；
4) biofilter water outlet enters biological contact oxidation pond under gravity, it is provided with 3 D elastic filler in biological contact oxidation pond body, it is divided into anaerobic and aerobic section, anaerobism section is substantially carried out Denitrification and Phosphurus release reaction, aerobic section is substantially carried out Nitrification, excess inhales phosphorus and organic matter degradation reaction, the HRT of biological contact oxidation pond is 24 hours, and gas-water ratio is 12, and hydraulic load is 0.075 m/(m2H).
5) biological contact oxidation pond water outlet enters into inclined-plate clarifying basin through pipeline, and current are bottom-up, it is achieved mud-water separation；
6) water outlet of inclined-plate clarifying basin supernatant enters into adsorption and dephosphorization pond, and the loading of modified steel scoria is 5 g/100 mL sewage, realizes the advanced treating of phosphorus under the adsorption of slag.
Sewage is after the present embodiment method processes, and effluent quality is: CODcr:19mg/L, NH+-N:2.9mg/L, TN:8.7 mg/L, TP:0.15mg/L.Meet " urban wastewater treatment firm pollutant emission standard " (GB
18918-2002) one-level A discharge standard.
Embodiment
2
The inventive method is used to process students' dormitory sanitary sewage, sewage former water quality situation: CODcr:354mg/L, NH+-N:46mg/L, TN:62 mg/L, TP:4.8mg/L.
1) students' dormitory sanitary sewage through tubing is unified collect after import anaerobic tank and carry out preliminary filtration, precipitate and hydrolyze, then by pipeline, septic tank effluent is drained to grid pond；
2), after removing the suspended impurity in sewage in grid pond, import in regulating reservoir and regulate and store；
3) with water pump by the sewage lifting in regulating reservoir to biofilter, surface, biofilter is dispensed in equably by perforation water distributor, the HRT of biofilter is 3.3 hours, and the Degradation of the microorganism through being attached on floating stuffing removes partial organic substances in sewage；
4) biofilter water outlet enters biological contact oxidation pond under gravity, it is provided with 3 D elastic filler in biological contact oxidation pond body, it is divided into anaerobic and aerobic section, anaerobism section is substantially carried out Denitrification and Phosphurus release reaction, aerobic section is substantially carried out Nitrification, excess inhales phosphorus and organic matter degradation reaction, the HRT of biological contact oxidation pond is 14.4 hours, and gas-water ratio is 9, and hydraulic load is 0.125 m/(m2H).
5) biological contact oxidation pond water outlet enters into inclined-plate clarifying basin through pipeline, and current are bottom-up, it is achieved mud-water separation；
6) water outlet of inclined-plate clarifying basin supernatant enters into adsorption and dephosphorization pond, and the loading of modified steel scoria is 5 g/100 mL sewage, realizes the advanced treating of phosphorus under the adsorption of slag.
Sewage is after the present embodiment method processes, and effluent quality is: CODcr:24mg/L, NH+-N:4.1mg/L, TN:10.5 mg/L, TP:0.18mg/L.Meet " urban wastewater treatment firm pollutant emission standard " (GB
18918-2002) one-level A discharge standard.
Embodiment
3
The inventive method is used to process students' dormitory sanitary sewage, sewage former water quality situation: CODcr: 420mg/L, NH+-N: 52mg/L, TN:75 mg/L, TP: 5.2mg/L.
1) students' dormitory sanitary sewage through tubing is unified collect after import anaerobic tank and carry out preliminary filtration, precipitate and hydrolyze, then by pipeline, septic tank effluent is drained to grid pond；
2), after removing the suspended impurity in sewage in grid pond, import in regulating reservoir and regulate and store；
3) with water pump by the sewage lifting in regulating reservoir to biofilter, surface, biofilter is dispensed in equably by perforation water distributor, the HRT of biofilter is 3.3 hours, and the Degradation of the microorganism through being attached on floating stuffing removes partial organic substances in sewage；
4) biofilter water outlet enters biological contact oxidation pond under gravity, it is provided with 3 D elastic filler in biological contact oxidation pond body, it is divided into anaerobic and aerobic section, anaerobism section is substantially carried out Denitrification and Phosphurus release reaction, aerobic section is substantially carried out Nitrification, excess inhales phosphorus and organic matter degradation reaction, the HRT of biological contact oxidation pond is 14.4 hours, and gas-water ratio is 12, and hydraulic load is 0.125 m/(m2H).
5) biological contact oxidation pond water outlet enters into inclined-plate clarifying basin through pipeline, and current are bottom-up, it is achieved mud-water separation；
6) water outlet of inclined-plate clarifying basin supernatant enters into adsorption and dephosphorization pond, and the loading of modified steel scoria is 3 g/100 mL sewage, realizes the advanced treating of phosphorus under the adsorption of slag.
Sewage is after the present embodiment method processes, and effluent quality is: CODcr:22mg/L, NH+-N:3.8mg/L, TN:10.2 mg/L, TP:0.24mg/L.Meet " urban wastewater treatment firm pollutant emission standard " (GB
18918-2002) one-level A discharge standard.
Finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to preferred embodiment, it will be understood by those within the art that, technical scheme can be modified or equivalent, without deviating from objective and the scope of technical solution of the present invention, it all should be contained in the middle of scope of the presently claimed invention.
Claims (10)
1. biofilter-bio-contact oxidation-slag adsorption sewage treatment system, including biofilter, biological contact oxidation pond, Hydraulic Circulation pump, aeration tube, aeration pump and sedimentation tank, it is characterized in that: also include being internally provided with the adsorption and dephosphorization pond of slag packing layer, described biofilter is provided with water inlet, the outlet of biofilter is connected with described biological contact oxidation pond, described biological contact oxidation pond includes aerobic zone and anaerobic zone, described Hydraulic Circulation pump connects described aerobic zone and anaerobic zone, described aeration tube is arranged on bottom described aerobic zone, described aeration pump is connected to realize aeration with described aeration tube, described biological contact oxidation pond is connected with the water inlet of sedimentation tank, the outlet of described sedimentation tank is connected with the water inlet in described adsorption and dephosphorization pond, described adsorption and dephosphorization pond is provided with outlet.
Biofilter-bio-contact oxidation-slag adsorption sewage treatment system the most according to claim 1, it is characterised in that: described biofilter is provided above water distributor of boring a hole, and described perforation water distributor is connected with the water inlet of biofilter.
Biofilter-bio-contact oxidation-slag adsorption sewage treatment system the most according to claim 1, it is characterised in that: described biofilter is arranged on the top of described biological contact oxidation pond.
Biofilter-bio-contact oxidation-slag adsorption sewage treatment system the most according to claim 1, it is characterized in that: described biological contact oxidation pond is the overall annular oxidation ditch structure in central authorities' island, and described Center Island is provided with described sedimentation tank and described adsorption and dephosphorization pond.
Biofilter-bio-contact oxidation-slag adsorption sewage treatment system the most according to claim 1, it is characterised in that: multiple rows of slag packing layer it is disposed with along described adsorption and dephosphorization pond water inlet to outlet direction.
Biofilter-bio-contact oxidation-slag adsorption sewage treatment system the most according to claim 1, it is characterised in that: the slag filled in described adsorption and dephosphorization pond is for processing 24 h, and the modified steel scoria obtained after dry 1 h at 700 DEG C through aqueous slkali soaking.
7. use the method that the arbitrary described biofilter-bio-contact oxidation-slag adsorption sewage treatment system of claim 1 ~ 6 carries out sewage disposal, it is characterised in that comprise the steps:
1) sewage is introduced dross removing device and removes the suspended impurity in sewage；
2) sewage after step 1) being processed imports in regulating reservoir and regulates and stores；
3) by step 2) regulate and store after water outlet pump in described biofilter, remove partial organic substances in water by the Degradation of microorganism on floating stuffing in biofilter；
4) water outlet after step 3) being processed introduces in described biological contact oxidation pond, alternately anaerobic-aerobic reaction is carried out under the Circulation of Hydraulic Circulation pump, anti-nitration reaction and the anaerobic phosphorus release reaction of nitrogen is completed under the anaerobe effect of anaerobic zone, complete the nitration reaction of nitrogen under the aerobic bacteria effect of aerobic zone, aerobic excess inhales phosphorus reaction and organic matter degradation reaction, removes Organic substance, nitrogen and the phosphorus in sewage；
5) water outlet after step 4) being processed introduces in sedimentation tank, it is achieved mud-water separation；
6) water outlet after step 5) being processed introduces in described adsorption and dephosphorization pond, utilizes slag filler that the phosphorus in sewage is carried out degree of depth removal.
Use the method that biofilter-bio-contact oxidation-slag adsorption sewage treatment system carries out sewage disposal the most according to claim 7, it is characterised in that in step 3), the hydraulic detention time of biofilter is 2 ~ 6 hours.
Use the method that biofilter-bio-contact oxidation-slag adsorption sewage treatment system carries out sewage disposal the most according to claim 7, it is characterized in that, the hydraulic detention time of step 4) biological contact oxidation pond is 10 ~ 24 hours, running gas-water ratio is 9 ~ 15, and hydraulic load is 0.075 ~ 0.175m/(m2H).
Use the method that biofilter-bio-contact oxidation-slag adsorption sewage treatment system carries out sewage disposal the most according to claim 7, it is characterized in that, step 6) adsorption and dephosphorization pond uses 1 ~ 5 g slags to carry out the filling of slag packing layer according to often processing 100 mL waste water.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006952A (en) * | 2016-08-05 | 2016-10-12 | 江苏奥尼斯环保科技有限公司 | Integrated MABR apparatus used for black and odorous water treatment, and treatment method thereof |
| CN108147623A (en) * | 2018-01-19 | 2018-06-12 | 晓清环保科技股份有限公司 | A kind of sewage disposal device and sewage disposal system |
| CN108218133A (en) * | 2018-02-07 | 2018-06-29 | 优德太湖水务（苏州）有限公司 | Deep phosphorous removal collection water tank and deep phosphorous removal micro-system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005230689A (en) * | 2004-02-19 | 2005-09-02 | Takenaka Komuten Co Ltd | Water path and member for removing nitrogen/phosphorus contained in waste water, and removal method for nitrogen/phosphorus contained in waste water |
| CN101973599A (en) * | 2010-10-25 | 2011-02-16 | 武汉理工大学 | Method for adsorbing phosphorus pollutants in water by using waste residues in iron and steel industry |
| CN102775025A (en) * | 2012-08-13 | 2012-11-14 | 陈秋竹 | Municipal life wastewater treatment system with high efficiency and low energy consumption |
| CN105084650A (en) * | 2015-07-27 | 2015-11-25 | 重庆大学 | Microaeration circulation integrated sewage biological ecological processing system and method |
-
2016
- 2016-05-12 CN CN201610313658.7A patent/CN105753271A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005230689A (en) * | 2004-02-19 | 2005-09-02 | Takenaka Komuten Co Ltd | Water path and member for removing nitrogen/phosphorus contained in waste water, and removal method for nitrogen/phosphorus contained in waste water |
| CN101973599A (en) * | 2010-10-25 | 2011-02-16 | 武汉理工大学 | Method for adsorbing phosphorus pollutants in water by using waste residues in iron and steel industry |
| CN102775025A (en) * | 2012-08-13 | 2012-11-14 | 陈秋竹 | Municipal life wastewater treatment system with high efficiency and low energy consumption |
| CN105084650A (en) * | 2015-07-27 | 2015-11-25 | 重庆大学 | Microaeration circulation integrated sewage biological ecological processing system and method |
Non-Patent Citations (4)
| Title |
|---|
| 于建等: ""改性钢渣颗粒吸附去除废水中磷的研究"", 《安全与环境学报》 * |
| 刘转年等: "《环保设备基础》", 31 January 2013, 中国矿业大学出版社 * |
| 张朝晖等: "《冶金资源综合利用》", 30 June 2011, 北京冶金工业出版社 * |
| 顾莹莹等: "《废水是如何变清的——倾听地球的脉搏》", 30 April 2012, 北京冶金工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006952A (en) * | 2016-08-05 | 2016-10-12 | 江苏奥尼斯环保科技有限公司 | Integrated MABR apparatus used for black and odorous water treatment, and treatment method thereof |
| CN108147623A (en) * | 2018-01-19 | 2018-06-12 | 晓清环保科技股份有限公司 | A kind of sewage disposal device and sewage disposal system |
| CN108218133A (en) * | 2018-02-07 | 2018-06-29 | 优德太湖水务（苏州）有限公司 | Deep phosphorous removal collection water tank and deep phosphorous removal micro-system |
| CN108218133B (en) * | 2018-02-07 | 2024-03-12 | 优德太湖水务（苏州）有限公司 | Deep dephosphorization microsystem |
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