CN205710317U - A kind of percolate precision processing system - Google Patents

A kind of percolate precision processing system Download PDF

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Publication number
CN205710317U
CN205710317U CN201620394780.7U CN201620394780U CN205710317U CN 205710317 U CN205710317 U CN 205710317U CN 201620394780 U CN201620394780 U CN 201620394780U CN 205710317 U CN205710317 U CN 205710317U
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filter
aerobic
baf
dbf
carbon
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郑俊
张德伟
郑杰
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HUAQI ENVIRONMENT PROTECTION SCIENCE AND TECHNOLOGY Co Ltd
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HUAQI ENVIRONMENT PROTECTION SCIENCE AND TECHNOLOGY Co Ltd
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Abstract

The utility model discloses a kind of percolate precision processing system, it is made up of coagulative precipitation tank, Fenton oxidation segregation apparatus, preposition biomembrane denitrogenation carbon removing device, Fenton oxidation segregation apparatus is Fenton oxidation tower, the combination unit in neutralization precipitation pond, and preposition biomembrane denitrogenation carbon removing device includes anoxia deep bed denitrification bio-filter (A DBF), aerobic de-carbon nitrification biofilter (C/N BAF) and intermediate pool.This utility model carries out depth of assortment process for pollutant different in percolate, there is higher capacity of resisting impact load, and can synchronize to realize the removal of the pollutant such as TP, COD, ammonia nitrogen and total nitrogen, effluent index can reach " household refuse landfill sites Environmental capacity standard " (GB16889 2008) primary standard.

Description

A kind of percolate precision processing system
Technical field
This utility model belongs to technical field of waste water processing, is specifically related to a kind of percolate precision processing system.
Background technology
At present, the precision processing of percolate is mainly based on membrane filtration, and membrane technology uses ultrafiltration, nanofiltration and reverse osmosis Thoroughly, but ultrafiltration, nanofiltration and reverse osmosis are only a separation process, pollutant undegraded and effective removal, are discharging clear liquid While, also have substantial amounts of concentrated solution.Simultaneously because ultrafiltration, nanofiltration and reverse osmosis do not have biological degradation function, effluent clear solution Middle low molecule organic matter such as thioether, hydrogen sulfide etc. can make water outlet leave stink.The concentrated solution that membrane processing method produces is at a kind of The biggest secondary pollution source of reason difficulty, the process of concentrated solution does not the most also have a good method, and film belong to can not Regenerated resources, must more renew as damaged, it is impossible to recycle, and cause the waste of resource, and operating cost is high.General concentrated solution Process use evaporation, adsorb burning method and recharge landfill yard.Wherein, evaporation mummification method is high to equipment requirements, and operating cost is high, Operation management is complicated；Absorption burning method runs more abroad, but the requirement to adsorbent is high, the activated carbon machine generally used Tool intensity difference, regeneration difficulty；Recharging the concentrated solution of landfill yard, filter through mineralized waste, in system, salinity cannot remove, time long Between formed accumulation, make leachate quality run down, affect system properly functioning.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, biochemical in conjunction with percolate second pond Water outlet and the character of membrance concentration liquid, by the way of physics, chemistry and biological treatment combine, propose a kind of percolate essence Processing system.This system has a higher capacity of resisting impact load, and can synchronize to realize heavy metal, TP, COD, ammonia nitrogen and total The removal of the pollutant such as nitrogen, effluent index can reach " household refuse landfill sites Environmental capacity standard " (GB16889-2008) one-level Standard, solves the most intractable present situation of percolate.
This utility model is the technical scheme reaching above-mentioned purpose:
This utility model percolate precision processing system, by including coagulative precipitation tank, Fenton oxidation segregation apparatus, preposition Biomembrane denitrogenation carbon removing device is composed in series.
Described percolate includes the percolate secondary biochemical effluent after physical separation or through physics The concentrated solution that membrane bioreactor after separation produces；
Described coagulative precipitation tank includes that inlet channel, coagulated agent dosing system, agitating device, coagulative precipitation tank are originally Body, swash plate or inclined tube, discharge pipeline, outlet canal, coagulative precipitation tank body is tube settler or inclined-plate clarifying basin；
Described Fenton oxidation segregation apparatus includes Fenton oxidation tower, neutralization precipitation pond；Described preposition biomembrane denitrogenation Carbon removing device includes anoxia deep bed denitrification bio-filter (A-DBF), aerobic de-carbon nitrification biofilter (C/N-BAF), anoxia Deep bed denitrification bio-filter (A-DBF) is connected in series with aerobic de-carbon nitrification biofilter (C/N-BAF), arranges between the two and oozes Filtrate reflux, percolate reflux ratio is 100% ~ 400%.
The outlet pipe in described neutralization precipitation pond is raw with the outlet pipe of percolate reflux bed denitrification deep with anoxia respectively Thing filter tank (A-DBF) body lower part connects.
Anoxia deep bed denitrification bio-filter (A-DBF) include anoxia deep bed denitrification bio-filter (A-DBF) distributing water room, Anoxia deep bed denitrification bio-filter (A-DBF) water-distributing device, anoxia deep bed denitrification bio-filter (A-DBF) body, anti-nitre Metaplasia thing filter material layer, clear water zone, outlet canal, outlet pipe.Anoxia deep bed denitrification bio-filter (A-DBF) distributing water room is arranged on scarce Oxygen deep bed denitrification bio-filter (A-DBF) body lower part, anoxia deep bed denitrification bio-filter (A-DBF) water-distributing device is arranged In anoxia deep bed denitrification bio-filter (A-DBF) distributing water room, the denitrification biological filter bed of material is arranged on anoxia deep bed denitrification Biofilter (A-DBF) water-distributing device top, clear water zone, on the top of the denitrification biological filter bed of material, has water outlet in clear water zone Canal, outlet canal connects aerobic de-carbon nitrification biofilter (C/N-BAF) body lower part by outlet pipe；
Aerobic de-carbon nitrification biofilter (C/N-BAF) include aerobic de-carbon nitrification biofilter (C/N-BAF) distributing water room, Aerobic de-carbon nitrification biofilter (C/N-BAF) water-distributing device, aerobic de-carbon nitrification biofilter (C/N-BAF) body, nitrification The biological filter bed of material, clear water zone, outlet canal, outlet pipe, aerobic de-carbon nitrification biofilter (C/N-BAF) distributing water room is arranged on aerobic De-carbon nitrification biofilter (C/N-BAF) body lower part, aerobic de-carbon nitrification biofilter (C/N-BAF) water-distributing device is arranged on In aerobic de-carbon nitrification biofilter (C/N-BAF) distributing water room, it is raw that the de-carbon nitrification biological filter bed of material is arranged on aerobic de-carbon nitrification Thing filter tank (C/N-BAF) distributing water room top, nitrification biological filter bed of material top is clear water zone, and clear water zone connects with outlet canal, water outlet Canal connects discharge intermediate pool by outlet pipe, and discharge pool portion water outlet is as finally discharging water outlet, and part is as backflow Nitrification liquid.
This utility model is by the way of physics, chemistry and biological treatment combine, for different dirty in percolate Dye thing carries out precision processing of classifying.This system has a higher capacity of resisting impact load, and can synchronize to realize TP, COD, ammonia nitrogen and The removal of the pollutant such as total nitrogen, effluent index can reach " household refuse landfill sites Environmental capacity standard " (GB16889-2008) Grade standard.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model percolate precision processing system.
In Fig. 1: 1, inlet channel, 2, coagulative precipitation tank, 3, coagulated agent throwing device, 4, inclined tube or swash plate, 5, water outlet Weir, 6, outlet conduit, 7, hydrogen peroxide chemicals dosing plant, 8, ferrous salt chemicals dosing plant, 9, agitating device, 10, Fenton's reaction tower, 11, outlet conduit, 12, pipe-line mixer, 13, alkaline matter and PAM chemicals dosing plant, 14, the percolate of reaction, 15, tiltedly Pipe or swash plate, 16, sedimentation tank, 17, outlet conduit, 18, spoil disposal pipeline, 19, anoxia deep bed denitrification bio-filter (A-DBF), 20, the denitrification biological filter bed of material, 21, anoxia deep bed denitrification bio-filter (A-DBF) water-distributing device, 22, clear water zone, 23, go out Water channel, 24, outlet pipe, 25, anoxia deep bed denitrification bio-filter (A-DBF) distributing water room, 26, aerobic de-carbon nitrification biofilter (C/N-BAF) distributing water room, 27, aerobic de-carbon nitrification biofilter (C/N-BAF) water-distributing device, 28, highly effective air bubbler, 29, aerobic de-carbon nitrification biofilter (C/N-BAF), 30, de-carbon nitrification filter material layer, 31, clear water zone, 32, outlet canal, 33, ooze Filtrate reflux line, 34, percolate reflux pump, 35, online dissolved oxygen meter, 36, PLC, 37, control cable, 38, frequency conversion Device, 39, aerator, 40, air line, 41, outlet pipe, 42, intermediate pool, 43, final delivery pipe.
Detailed description of the invention
As can be seen from Figure 1, this utility model percolate precision processing system, by including that coagulative precipitation tank, Fenton oxidation divide From device, preposition biomembrane denitrogenation carbon removing device composition.
Coagulative precipitation tank includes inlet channel 1, coagulated agent throwing device 3, agitating device, coagulative precipitation tank body 2, tiltedly Plate or inclined tube 4, outlet canal 5.
Fenton oxidation segregation apparatus is Fenton's reaction tower 10, the combination unit in neutralization precipitation pond 16.Described Fenton's reaction Tower Fenton's reaction tower 10 includes hydrogen peroxide 7 and ferrous chemicals dosing plant 8, agitating device 9, outlet pipe 11；Neutralization precipitation pond includes Pipe-line mixer 12, alkaline matter and PAM chemicals dosing plant 13, percolate 14, inclined tube or swash plate 15, the outlet conduit of reaction 17, spoil disposal pipeline 18.Coagulative precipitation tank 2 top water outlet is connected with Fenton's reaction tower 10 bottom by pipeline 6.
Preposition biomembrane denitrogenation carbon removing device includes anoxia deep bed denitrification bio-filter (A-DBF) 19, aerobic de-carbon nitre Change biofilter (C/N-BAF) 29 and intermediate pool 42.Neutralization precipitation pond 42 bed deep with percolate reflux line 33 and anoxia is anti- Nitrification biofilter (A-DBF) body 19 bottom connects.
Anoxia deep bed denitrification bio-filter (A-DBF) 19 includes anoxia deep bed denitrification bio-filter (A-DBF) water distribution Room 25, anoxia deep bed denitrification bio-filter (A-DBF) water-distributing device 21, anoxia deep bed denitrification bio-filter (A-DBF) are originally Body, the denitrification biological filter bed of material 20, clear water zone 22, outlet canal 23, outlet pipe 24.Anoxia deep bed denitrification bio-filter (A- DBF) distributing water room 25 is arranged on anoxia deep bed denitrification bio-filter (A-DBF) body lower part, anoxia deep bed denitrification biological filter Pond (A-DBF) water-distributing device 21 is arranged in anoxia deep bed denitrification bio-filter (A-DBF) distributing water room, denitrification biofilter material Layer 20 is arranged on anoxia deep bed denitrification bio-filter (A-DBF) water-distributing device 21 top, and clear water zone 22 is at denitrification biological filter The top of the bed of material 20, has outlet canal 23 in clear water zone 22, and outlet canal 23 connects aerobic de-carbon nitrification biological filter by outlet pipe Pond (C/N-BAF) body lower part；Aerobic de-carbon nitrification biofilter (C/N-BAF) 29 includes aerobic de-carbon nitrification biofilter (C/N-BAF) distributing water room 26, aerobic de-carbon nitrification biofilter (C/N-BAF) water distribution system 27, highly effective air bubbler 28, good Oxygen de-carbon nitrification biofilter (C/N-BAF) body, the de-carbon nitrification biological filter bed of material 30, clear water zone 31, outlet canal 32, outlet pipe 41, the dissolved oxygen value that online dissolved oxygen meter 35 measures feeds back to PLC computer operation system 36, by PLC computer operation System controls converter 38 and aerator 39 by controlling cable 37, and the compressed air of aerator 39 passes through air line 40 and height The effect air diffuser 28 filter material layer oxygen supply to aerobic de-carbon nitrification biofilter (C/N-BAF), aerobic de-carbon nitrification biological filter Pond (C/N-BAF) distributing water room 26 is arranged on aerobic de-carbon nitrification biofilter (C/N-BAF) body lower part, and aerobic de-carbon nitrification is raw Thing filter tank (C/N-BAF) water distribution system 27 is arranged in aerobic de-carbon nitrification biofilter (C/N-BAF) distributing water room 26, de-carbon nitre Metaplasia thing filter material layer is arranged on aerobic de-carbon nitrification biofilter (C/N-BAF) distributing water room 26 top, the nitrification biological filter bed of material 30 Top is clear water zone 31, and clear water zone 31 connects with outlet canal 32, and outlet canal connects discharge intermediate pool 42, discharge by outlet pipe Intermediate pool 42 part water outlet is as finally discharging water outlet, and part is as the nitrification liquid of backflow.
Landfill leachate treatment step is as follows:
(1) coagulating sedimentation reaction: the major part removed in waste water by coagulative precipitation tank is suspended, the Organic substance of colloidal with And the pollutant such as heavy metal ion and total phosphorus, according to bodied ferric sulfate or PAFC pharmaceutical quantities and pending percolate COD mass ratio is that 2:1 ~ 1:3 adds coagulated agent to coagulating basin, adds certain flocculation aid PAM simultaneously, sink through coagulation in pond Clarification percolate behind shallow lake enters Fenton oxidation segregation apparatus；
Described coagulative precipitation tank water outlet is entering Fenton's reaction tower bottom.
(2) Fenton oxidation segregation apparatus reaction: Fenton oxidation segregation apparatus is Fenton's reaction tower, the combination in neutralization precipitation pond Device.In Fenton's reaction tower, in Fenton reactor, add green vitriol, two kinds of medicaments of hydrogen peroxide, peroxidating Hydrogen dosage is 1:10 ~ 8:1 with the COD mass ratio of regulating reservoir water outlet；Mol ratio 1:1 according to hydrogen peroxide Yu ferrous ion ~ 6:1 adds ferrous salt in Fenton reactor, and in Fenton reactor, pH value is 2.5 ~ 4, and the response time is 1 ~ 8 hour, and Fenton is anti- Device water outlet is answered to enter neutralization precipitation pond；The hydroxide that Fenton's reaction tower water outlet adds with adding of agent system in pipe-line mixer Sodium, PAM are mixed into neutralization precipitation pond and enter neutralization precipitation pond, regulate water outlet pH value to 7 ~ 9 with alkaline matter, and according to PAM dosage and COD remove mass ratio 1:600 ~ 1:300 and add flocculation aid PAM, and neutralization pond water outlet is again through sedimentation tank precipitation separation Flco, net benefit, the adsorption bridging etc. of the ferric hydroxide colloid by producing in N-process act on to be removed in waste water further Partial organic substances and the iron salt of the overwhelming majority.Neutralization pond water outlet is clarified further through sedimentation tank mud-water separation effect again, clarifies out Water enters in next stage biomembrane denitrogenation de-carbon system.
(3) biomembrane denitrogenation de-carbon reaction:
Preposition biomembrane denitrogenation carbon removing device is by anoxia deep bed denitrification bio-filter (A-DBF) and aerobic de-carbon nitrification (C/N-BAF) is in series in biofilter, and reactor arranges percolate return-flow system between the two, and percolate reflux ratio is 100% ~ 400%。
1. anoxia deep bed denitrification bio-filter (A-DBF) anti-nitration reaction:
It is raw that Fenton oxidation segregation apparatus water outlet enters deep bed anoxia deep bed denitrification together with after the percolate mixing of backflow Thing filter tank (A-DBF), and according to COD/NOx --N mass ratio is that 3:1 ~ 5:1 adds carbon source, hydraulic retention to cell body leading portion intake pool 2 ~ 6 hours time, the obligate denitrifying bacterium being attached to anoxia deep bed denitrification bio-filter (A-DBF) interior filling surface then utilizes In former percolate, remaining Organic substance and the carbon source added are as denitrifying carbon source, will come from medium sediment pool water outlet and aerobe The nitrate nitrogen of the nitrification liquid of filter tank backflow is reduced to nitrogen, thus realizes denitrogenation and remove the organic mesh of part in waste water , anoxia deep bed denitrification bio-filter (A-DBF) water outlet enters aerobic nitrification de-carbon biofilter (C/N-BAF)；
The most aerobic de-carbon nitrification biofilter (C/N-BAF) de-carbon nitration reaction:
When in aerobic nitrification de-carbon biofilter (C/N-BAF), dissolved oxygen is 3.5 ~ 8mg/L, apposition growth is filled out at biology Ammonium oxidation is nitrate nitrogen by the obligate aerobic nitrification bacterium on the bed of material, the apposition growth aerobic heterotrophic bacteria on biologic packing material layer By a small amount of remaining organic matter removal, percolate is after 4 ~ 12 hours process, through aerobic de-carbon nitrification biofilter (C/N- BAF) the part water outlet processed is as the percolate of backflow, and part water outlet is as water outlet the most up to standard.
Biological by anoxia deep bed denitrification bio-filter (A-DBF) aerobic de-carbon nitrification biofilter (C/N-BAF) Film removal of carbon and nitrogen system ensures the stability of whole system water outlet and reaches discharge standard.

Claims (5)

1. a percolate precision processing system, is removed by coagulative precipitation tank, Fenton oxidation segregation apparatus, preposition biomembrane denitrogenation Carbon device is composed in series, it is characterised in that:
Described coagulative precipitation tank includes inlet channel, coagulated agent dosing system, agitating device, coagulative precipitation tank body, tiltedly Plate or inclined tube, discharge pipeline, outlet canal, coagulative precipitation tank body is tube settler or inclined-plate clarifying basin；
Described Fenton oxidation segregation apparatus includes Fenton oxidation tower and neutralization precipitation pond；
Described Fenton oxidation tower includes Fenton oxidation tower body, ferrous salt chemicals dosing plant, agitating device, hydrogen peroxide dosing dress Put；
Described preposition biomembrane denitrogenation carbon removing device includes anoxia deep bed denitrification bio-filter (A-DBF), aerobic de-carbon nitre Changing biofilter (C/N-BAF) and intermediate water tank, anoxia deep bed denitrification bio-filter (A-DBF) is biological with aerobic de-carbon nitrification (C/N-BAF) is connected in series in filter tank, arranges percolate reflux by intermediate pool between the two.
Percolate precision processing system the most according to claim 1, it is characterised in that: the water outlet in described neutralization precipitation pond Pipe is connected with the outlet pipe of percolate reflux bed denitrification bio-filter (A-DBF) body lower part deep with anoxia respectively.
Percolate precision processing system the most according to claim 1, it is characterised in that: described neutralization precipitation pond is for adding The tube settler of medicine or inclined-plate clarifying basin.
Percolate precision processing system the most according to claim 1, it is characterised in that: described anoxia deep bed denitrification is raw Thing filter tank (A-DBF) includes anoxia deep bed denitrification bio-filter (A-DBF) distributing water room, anoxia deep bed denitrification bio-filter (A-DBF) water-distributing device, anoxia deep bed denitrification bio-filter (A-DBF) body, the denitrification biological filter bed of material, clear water zone, go out Water channel, outlet pipe；Anoxia deep bed denitrification bio-filter (A-DBF) distributing water room is arranged on anoxia deep bed denitrification bio-filter (A-DBF) body lower part, it is biological that anoxia deep bed denitrification bio-filter (A-DBF) water-distributing device is arranged on anoxia deep bed denitrification In filter tank (A-DBF) distributing water room, the denitrification biological filter bed of material is arranged on anoxia deep bed denitrification bio-filter (A-DBF) water distribution dress Putting top, clear water zone, on the top of the denitrification biological filter bed of material, has outlet canal in clear water zone, and outlet canal is connected by outlet pipe Aerobic de-carbon nitrification biofilter (C/N-BAF) body lower part.
Percolate precision processing system the most according to claim 1, it is characterised in that: described aerobic de-carbon nitrification is biological Filter tank (C/N-BAF) includes aerobic de-carbon nitrification biofilter (C/N-BAF) distributing water room, aerobic de-carbon nitrification biofilter (C/ N-BAF) water distribution system, aerobic de-carbon nitrification biofilter (C/N-BAF) body, the nitrification biological filter bed of material, clear water zone, water outlet Canal, outlet pipe and intermediate pool, it is biological that aerobic de-carbon nitrification biofilter (C/N-BAF) distributing water room is arranged on aerobic de-carbon nitrification Filter tank (C/N-BAF) body lower part, aerobic de-carbon nitrification biofilter (C/N-BAF) water-distributing device is arranged on aerobic de-carbon nitrification In biofilter (C/N-BAF) distributing water room, the de-carbon nitrification biological filter bed of material is arranged on aerobic de-carbon nitrification biofilter (C/N- BAF) distributing water room top, nitrification biological filter bed of material top is clear water zone, and clear water zone connects with outlet canal, and outlet canal passes through outlet pipe Connecting discharge pond, discharge pool portion water outlet is as finally discharging water outlet, and part is as the nitrification liquid of backflow.
CN201620394780.7U 2016-04-29 2016-04-29 A kind of percolate precision processing system Active CN205710317U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108706831A (en) * 2018-06-05 2018-10-26 南京大学 A kind of advanced treatment apparatus and technique of high concentrated organic wastewater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108706831A (en) * 2018-06-05 2018-10-26 南京大学 A kind of advanced treatment apparatus and technique of high concentrated organic wastewater

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