CN101786779B - Sludge reduction and denitrification combined urban sewage and sludge combined treatment system - Google Patents
Sludge reduction and denitrification combined urban sewage and sludge combined treatment system Download PDFInfo
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Abstract
The invention relates to a sludge reduction and denitrification combined urban sewage and sludge combined treatment system and solves the problem that the normal running of a sewage treatment system is affected by the large load impact resulting from the fact that the high COD, N and P content of the sludge supernate obtained by sludge reduction treatment requires that the sludge supernate has to be returned to the sewage treatment system to be further treated. The invention adopts a technical scheme 1 that a sludge reduction device and a sequencing batch biological sewage treatment device are combined to work and adopts a technical scheme 2 that sludge reduction device and a membrane biological sewage treatment device are combined to work. A plurality of benthic biofouling plates of the invention are all uniformly arranged in a sludge reduction reactor. The sludge reduction effect of the invention can reach 85 to 90 percent; removal rate of total nitrogen reaches 85 percent; and the system of the invention has the advantages of low investment and running cost, high efficiency of sludge reduction, good denitrification effect and no secondary pollution.
Description
Technical field
The present invention relates to a kind of mud decrement and denitrification denitrogenation city sewage and sludge treatment system, belong to the technical field of utilizing biotechnology to handle mud.
Background technology
Dirty water living creature processing technique is being brought into play enormous function always in the sewage purification process, the drawback of dirty water living creature processing technique maximum is exactly to produce a large amount of excess sludges when disposing of sewage, the hazardous and noxious substances (as parasitic ovum, pathogenic micro-organism, heavy metal) that these excess sludges contain a great deal of usually reaches the not organism of stabilization, if do not deal carefully with and dispose, will cause directly or the potential pollution environment.Yet sludge treatment and ultimate disposal need a large amount of initial costs and high working cost, and working cost can be up to 60～70% of wastewater treatment expense.Obviously, the processing of mud and disposal will become a great problem of environmental area.Therefore, press for a kind of novel cost-effective mud decrement technology of exploitation.
At present, domestic and international universally recognized mud decrement technology can be divided into four classes: one, molten born of the same parents-recessive growth; Two, endogenous respiration; Three, decoupling zero connection metabolism; Four, microorganism predation.The same three technology is compared, and the microorganism predation technology has the processing mechanism of " pure ecology ", lower processing cost and good mud decrement effect, has therefore obtained to pay close attention to widely.
Big quantity research fact table is bright, though the mud decrement effect of microorganism predation technology is fine, but microfauna is in the process of sludge predation, inorganic nutrient substances such as inevitable meeting release portion organic substance and nitrogen, phosphorus, therefore in the mud supernatant liquor after the highly effective sludge decrement, the content of COD and N, P will increase substantially, and must be back to Sewage treatment systems and further handle, bring bigger load impact to Sewage treatment systems, influence its normal operation.So, can guarantee that in the efficient decrement of mud effluent quality is unaffected, sludge organism predation process application is in a bottleneck problem of practice just.Therefore, how to improve existing mud predation technology, when guaranteeing highly effective sludge decrement effect, good water outlet effect can be arranged again, promptly utilize microfauna to discharge the effective carbon source of partial organic substances matter as denitrification, the denitrification denitrogenation effect is taking place again in mud decrement, is new bio predation Study on Technology focus.
Along with deepening continuously that synchronous nitration and denitrification is studied, notions such as aerobic denitrification and autotrophic denitrification are proposed in succession in recent years, have established the theoretical basis of synchronous nitration and denitrification reaction (being called for short the SND effect) biological denitrificaion new technology.The microenvironment theory is thought: in active sludge flco or filler, owing to be subjected to the diffusional limitation of oxygen, have the dissolved oxygen gradient in flco or the filler.Flco or filler outside surface directly contact with gas, liquid and dissolved oxygen is higher, and microbial population is based on aerobic bacteria, nitrifier; Flco or filler internal layer are because the oxygen transmission is obstructed and external oxygen has been formed the anoxic microenvironment by mass consumption, and denitrifying bacteria is preponderated.Therefore by the dissolved oxygen environment of control mud decrement device inside,, will make the denitrification denitrogenation effect in the mud decrement process become possibility for denitrification provides good reaction environment.
Summary of the invention
The objective of the invention is in order to solve the content height of COD and N, P in the mud supernatant liquor after mud decrement is handled, must be back to Sewage treatment systems further handles, bring bigger load impact to Sewage treatment systems, and influence the normal problem of moving of Sewage treatment systems, and then provide a kind of mud decrement and denitrification denitrogenation coupled city sewage and sludge joint processing system.
First kind of technical scheme of the present invention is: mud decrement and denitrification denitrogenation coupled city sewage and sludge joint processing system are made up of sequence batch (biology sewage treatment equipment, first sludge pump, the 4th variable valve, mud decrement device, the 3rd variable valve and second sludge pump;
Described sequence batch (biology sewage treatment equipment advances mud pipe, first shore pipe and first aerator by sequence bioreactor, inhalent siphon, first and forms; First aerator is made up of first aeration head, first inlet pipe, first variable valve, first air compressor, very first time rly. and first lead;
Described mud decrement device by sludge decrement reactor, polylith benthonic biological attachment plate, second aerator, second advances the mud pipe and second shore pipe is formed; Second aerator is made up of second aeration head, second inlet pipe, second variable valve, second air compressor, second time relay and second lead; Benthonic biological attachment plate is made up of lamina affixad main body and the filler that is fixed on the lamina affixad main body;
Described inhalent siphon is installed on the sidewall of sequence bioreactor upper end, and be communicated with sequence bioreactor, described first advances on the sidewall that the mud pipe is installed in the sequence bioreactor lower end, and be communicated with sequence bioreactor, described first shore pipe is installed on the diapire of sequence bioreactor, and be communicated with sequence bioreactor, described first aeration head is arranged on the inside of sequence bioreactor, and be positioned at the bottom of sequence bioreactor, first aeration head is communicated with first air compressor of sequence bioreactor outside by first inlet pipe, described first variable valve is installed on first inlet pipe, and described very first time rly. is connected with first air compressor by first lead;
Described second advances on the sidewall that the mud pipe is installed in sludge decrement reactor upper end, and be communicated with sludge decrement reactor, described second shore pipe is installed on the diapire of sludge decrement reactor, and be communicated with sludge decrement reactor, described polylith benthonic biological attachment plate is evenly arranged in the sludge decrement reactor and is positioned at the middle part of sludge decrement reactor, described second aeration head is arranged on the inside of sludge decrement reactor, and be positioned at the below of benthonic biological attachment plate bottom, described second aeration head is communicated with second air compressor of sludge decrement reactor outside by second inlet pipe, described second variable valve is installed on second inlet pipe, and described second time relay is connected with second air compressor by second lead;
Described first advances the mud pipe is communicated with second shore pipe by second sludge pump, and described first shore pipe advances the mud pipe by first sludge pump and second and is communicated with, and described the 4th variable valve is installed on first shore pipe, and described the 3rd variable valve is installed on second shore pipe.
Second kind of technical scheme of the present invention is: mud decrement and denitrification denitrogenation coupled city sewage and sludge joint processing system are made up of film biology sewage treatment equipment, first sludge pump, the 4th variable valve, mud decrement device, the 3rd variable valve and second sludge pump;
Described film biology sewage treatment equipment advances mud pipe, first shore pipe, membrane module and first aerator by membrane bioreactor, inhalent siphon, first and forms; First aerator is made up of first aeration head, first inlet pipe, first variable valve and first air compressor, very first time rly. and first lead;
Described mud decrement device by sludge decrement reactor, polylith benthonic biological attachment plate, second aerator, second advances the mud pipe and second shore pipe is formed; Second aerator is made up of second aeration head, second inlet pipe, second variable valve, second air compressor, second time relay and second lead; Benthonic biological attachment plate is made up of lamina affixad main body and the filler that is fixed on the lamina affixad main body;
Described inhalent siphon is installed on the sidewall of membrane bioreactor upper end, and be communicated with membrane bioreactor, described first shore pipe is installed on the sidewall of membrane bioreactor lower end, and be communicated with membrane bioreactor, described first advances on the diapire that the mud pipe is installed in membrane bioreactor, and be communicated with membrane bioreactor, described first aeration head is arranged on the inside of membrane bioreactor, and be positioned at the bottom of membrane bioreactor, first aeration head is communicated with first air compressor of membrane bioreactor outside by first inlet pipe, described first variable valve is installed on first inlet pipe, described very first time rly. is connected with first air compressor by first lead, and described membrane module is arranged on the middle part of membrane bioreactor;
Described second advances on the sidewall that the mud pipe is installed in sludge decrement reactor upper end, and be communicated with sludge decrement reactor, described second shore pipe is installed on the diapire of sludge decrement reactor, and be communicated with sludge decrement reactor, described polylith benthonic biological attachment plate is evenly arranged in the sludge decrement reactor and is positioned at the middle part of sludge decrement reactor, described second aeration head is arranged on the inside of sludge decrement reactor, and be positioned at the below of benthonic biological attachment plate bottom, described second aeration head is communicated with second air compressor of sludge decrement reactor outside by second inlet pipe, described second variable valve is installed on second inlet pipe, and described second time relay is connected with second air compressor by second lead;
Described first advances the mud pipe is communicated with second shore pipe by second sludge pump, and described first shore pipe advances the mud pipe by first sludge pump and second and is communicated with, and described the 4th variable valve is installed on first shore pipe, and described the 3rd variable valve is installed on second shore pipe.
The present invention compared with prior art has following effect:
One, the present invention has realized the synchronous processing of city sewage and sludge by with mud decrement device and sequence batch (biology sewage treatment equipment or film biology sewage treatment equipment cooperation; The present invention is based on microorganism predation and denitrification denitrogenation principle, designed a kind of mud decrement device especially with denitrification denitrogenation effect, greatly reduce the content of COD and N in the returned sluge, alleviated the nutritive substance that discharged in the microfauna sludge predation process to the unitary load impact of preposition sewage disposal, therefore, the mud mixed liquid that refluxes from the mud decrement device will can not produce considerable influence to preposition wastewater treatment efficiency, thereby really realize the efficient processing that city sewage and sludge is synchronous.
Two, mud decrement Design of device of the present invention is based on the principle of benthonic microorganism predation mud, strengthened simultaneously the denitrification denitrogenation effect again, be the good reaction conditions of denitrification denitrogenation, be mainly reflected in following three aspects: 1, benthonic biological attachment plate makes and forms the dissolved oxygen gradient between filler and the sludge blanket, has satisfied the requirement of denitrification to the anoxic microenvironment; 2, made full use of releasing organics in the benthonic microorganism predation mud process, for denitrification provides effective carbon source; 3, because benthonic biology self adaptive, the pH all-the-time stable of mud mixed liquid is 7.5 ± 0.2, for denitrification provides suitable pH condition in this device.Therefore, the denitrification denitrogenation effect of a whole set of mud decrement device is very obvious.
Three, the denitrification denitrogenation process utilization of mud decrement device of the present invention is the organic substance that benthonic microorganism predation mud is discharged, and need not additional carbon, both solve the problem of releasing organics in the benthonic reducing biological sludge process, reduced the cost of denitrification denitrogenation process additional carbon again.
Four, mud decrement device of the present invention adopts variable aeration equipment, by regulating aeration rate, can guarantee the eupnea effect of benthonic biology on the one hand; On the other hand, the mud mixed liquid in the mud decrement device is mixed, thus can be by the biological fully predation of benthonic.Moreover, by the adjusting of aeration rate, the dissolved oxygen of a whole set of mud decrement device is maintained about 0.5mg/L, create the dissolved oxygen environment that adapts to for the microorganism denitrification.
Five, technology of the present invention is simple, compact construction, and stable and reliable operation, convenient operation and management can be completely achieved automatization control, can stablize the ecological cooperative of effective realization municipal effluent and sewage sludge and handle, and has wide promotion prospect.
Six, mud decrement effect of the present invention can reach 85～90%, and the clearance of total nitrogen reaches 85%, and it is low to have investment and running cost, and the efficient decrement of mud, denitrification effect is good and the advantage of non-secondary pollution.
Description of drawings
Fig. 1 is the integrally-built front view (arrow represents that sewage sludge flows among the figure) of first kind of technical scheme of the present invention, Fig. 2 is the front view of benthonic biological attachment plate, Fig. 3 is the vertical view of lamina affixad main body, Fig. 4 is the A-A sectional view of Fig. 3, and Fig. 5 is the integrally-built front view (arrow represents that sewage sludge flows among the figure) of second kind of technical scheme of the present invention.
Embodiment
Embodiment one: in conjunction with Fig. 1-Fig. 2 present embodiment is described, the mud decrement of present embodiment and denitrification denitrogenation coupled city sewage and sludge joint processing system are made up of sequence batch (biology sewage treatment equipment, first sludge pump 7, the 4th variable valve 6, mud decrement device, the 3rd variable valve 17 and second sludge pump 18;
Described sequence batch (biology sewage treatment equipment advances mud pipe 21, first shore pipe 22 and first aerator by sequence bioreactor 1, inhalent siphon 20, first and forms; First aerator is made up of first aeration head 2, first inlet pipe 23, first variable valve 3, first air compressor 4, very first time rly. 5 and first lead 24;
Described mud decrement device by sludge decrement reactor 8, polylith benthonic biological attachment plate 9, second aerator, second advances mud pipe 25 and second shore pipe 26 is formed; Second aerator is made up of second aeration head 10, second inlet pipe 27, second variable valve 12, second air compressor 13, second time relay 16 and second lead 29; Benthonic biological attachment plate 9 is made up of lamina affixad main body 30 and the filler 31 that is fixed on the lamina affixad main body 30;
Described inhalent siphon 20 is installed on the sidewall of sequence bioreactor 1 upper end, and be communicated with sequence bioreactor 1, described first advances on the sidewall that mud pipe 21 is installed in sequence bioreactor 1 lower end, and be communicated with sequence bioreactor 1, described first shore pipe 22 is installed on the diapire of sequence bioreactor 1, and be communicated with sequence bioreactor 1, described first aeration head 2 is arranged on the inside of sequence bioreactor 1, and be positioned at the bottom of sequence bioreactor 1, first aeration head 2 is communicated with first air compressor 4 of sequence bioreactor 1 outside by first inlet pipe 23, described first variable valve 3 is installed on first inlet pipe 23, and described very first time rly. 5 is connected with first air compressor 4 by first lead 24;
Described second advances on the sidewall that mud pipe 25 is installed in sludge decrement reactor 8 upper ends, and be communicated with sludge decrement reactor 8, described second shore pipe 26 is installed on the diapire of sludge decrement reactor 8, and be communicated with sludge decrement reactor 8, described polylith benthonic biological attachment plate 9 is evenly arranged in the sludge decrement reactor 8 and is positioned at the middle part of sludge decrement reactor 8, described second aeration head 10 is arranged on the inside of sludge decrement reactor 8, and be positioned at the below of benthonic biological attachment plate 9 bottom, described second aeration head 10 is communicated with second air compressor 13 of sludge decrement reactor 8 outsides by second inlet pipe 27, described second variable valve 12 is installed on second inlet pipe 27, and described second time relay 16 is connected with second air compressor 13 by second lead 29;
Described first advances mud pipe 21 is communicated with second shore pipe 26 by second sludge pump 18, described first shore pipe 22 advances mud pipe 25 by first sludge pump 7 and second and is communicated with, described the 4th variable valve 6 is installed on first shore pipe 22, and described the 3rd variable valve 17 is installed on second shore pipe 26.
The characteristics of the treatment system of present embodiment are that SBR technology, i.e. sequencing batch active sludge are adopted in sewage disposal.The useful volume of sequence batch (biology sewage treatment equipment is 240L.The operation scheme of SBR is in the treatment system of present embodiment: each cycle 8h, and water inlet 0.5h, aeration 5h, precipitation 2h, draining 0.5h, one day is 3 cycles, each cycle water displacement is 150L, water inlet 150L; Other operating parameters are: dissolved oxygen is controlled at 2～3mg/L, and sludge concentration maintains 3000～4000mg/L, cultivates with the simulated domestic wastewater of human configuration.Test was carried out 30 days altogether, SBR carried out sewage disposal separately in preceding 15 days, 15 days SBR treatment unit in back and mud decrement device are united and are carried out the sewage sludge associated treatment, in the process integration test, the sequence batch (biology sewage treatment equipment is before the phase finishes weekly, active sludge in the 15L sequence batch (biology sewage treatment equipment is entered in the mud decrement device, from the mud decrement device, discharge the active sludge of 15L before this earlier through decrement, wherein outside the form discharging mud decrement device of 5L with excess sludge, 10L is back in the SBR treatment unit; In the mud decrement device operational process, hydraulic detention time is 12 hours, sludge retention time is 1 day, 13 pairs of mud decrement devices of second air compressor continuous aeration, continuous air demand by second variable valve, 12 adjustings, second air compressor 13, make the mud mixed liquid in the mud decrement device be in uniform state substantially, in implementation process, will monitor DO (dissolved oxygen concentration), it is maintained about 0.5mg/L; Temperature with the thermometer controlling reactor is 25 ± 2 ℃; Measured the pH of mud mixed liquid in the mud decrement device every two hours.
The successive test-results: this operation scheme water inlet COD is about 400mg/L,
Be about 35mg/L, after the SBR treatment unit was handled, the COD clearance was 92.2%,
Clearance is 80.5%, and further behind the mud decrement device, the COD clearance is 91.8%,
Clearance further bring up to 90.3%, the mud decrement effect is up to 85%.See that on the whole the mud decrement effect of entire sewage mud joint processing system is up to 85～90%,
Clearance up to 85～90%,
Clearance can reach 92.3%, the clearance of TN is 86.7%.System has successfully realized carrying out synchronously of mud decrement and denitrification denitrogenation.
Embodiment two: present embodiment is described in conjunction with Fig. 2-Fig. 4, the lamina affixad main body 30 of present embodiment is a rectangular plate, the length of rectangular plate and the ratio of width are 5: 3, thickness is 1-2cm, have a plurality of square opening 30-1 on the rectangular plate, all have groove 30-2 on each side opening wall of each square opening 30-1, the groove 30-2 on each side opening wall of each square opening 30-1 constitutes jointly three-back-shaped pickup groove, and described filler 31 is fixed on the lamina affixad main body 30 by three-back-shaped pickup groove.So be provided with, have highly air-permeable, closely, characteristic such as specific surface area is big helps the high-density growth of benthonic biology.Other composition is identical with embodiment one with annexation.
Embodiment three: in conjunction with Fig. 4 present embodiment is described, the filler 31 of present embodiment is formed by the braiding of many ciliums material.So be provided with, effectively promoted the growth and breeding of denitrifying bacteria, for denitrification provides good reaction conditions.Other composition is identical with embodiment one or two with annexation.
Embodiment four: in conjunction with Fig. 2 and Fig. 5 present embodiment is described, the mud decrement of present embodiment and denitrification denitrogenation coupled city sewage and sludge joint processing system are made up of film biology sewage treatment equipment, first sludge pump 7, the 4th variable valve 6, mud decrement device, the 3rd variable valve 17 and second sludge pump 18;
Described film biology sewage treatment equipment advances mud pipe 21, first shore pipe 22, membrane module 32 and first aerator by membrane bioreactor 33, inhalent siphon 20, first and forms; First aerator is made up of first aeration head 2, first inlet pipe 23, first variable valve 3 and first air compressor 4, very first time rly. 5 and first lead 24;
Described mud decrement device by sludge decrement reactor 8, polylith benthonic biological attachment plate 9, second aerator, second advances mud pipe 25 and second shore pipe 26 is formed; Second aerator is made up of second aeration head 10, second inlet pipe 27, second variable valve 12, second air compressor 13, second time relay 16 and second lead 29; Benthonic biological attachment plate 9 is made up of lamina affixad main body 30 and the filler 31 that is fixed on the lamina affixad main body 30;
Described inhalent siphon 20 is installed on the sidewall of membrane bioreactor 33 upper ends, and be communicated with membrane bioreactor 33, described first shore pipe 22 is installed on the sidewall of membrane bioreactor 33 lower ends, and be communicated with membrane bioreactor 33, described first advances on the diapire that mud pipe 21 is installed in membrane bioreactor 33, and be communicated with membrane bioreactor 33, described first aeration head 2 is arranged on the inside of membrane bioreactor 33, and be positioned at the bottom of membrane bioreactor 33, first aeration head 2 is communicated with first air compressor 4 of membrane bioreactor 33 outsides by first inlet pipe 23, described first variable valve 3 is installed on first inlet pipe 23, described very first time rly. 5 is connected with first air compressor 4 by first lead 24, and described membrane module 32 is arranged on the middle part of membrane bioreactor 33;
Described second advances on the sidewall that mud pipe 25 is installed in sludge decrement reactor 8 upper ends, and be communicated with sludge decrement reactor 8, described second shore pipe 26 is installed on the diapire of sludge decrement reactor 8, and be communicated with sludge decrement reactor 8, described polylith benthonic biological attachment plate 9 is evenly arranged in the sludge decrement reactor 8 and is positioned at the middle part of sludge decrement reactor 8, described second aeration head 10 is arranged on the inside of sludge decrement reactor 8, and be positioned at the below of benthonic biological attachment plate 9 bottom, described second aeration head 10 is communicated with second air compressor 13 of sludge decrement reactor 8 outsides by second inlet pipe 27, described second variable valve 12 is installed on second inlet pipe 27, and described second time relay 16 is connected with second air compressor 13 by second lead 29;
Described first advances mud pipe 21 is communicated with second shore pipe 26 by second sludge pump 18, described first shore pipe 22 advances mud pipe 25 by first sludge pump 7 and second and is communicated with, described the 4th variable valve 6 is installed on first shore pipe 22, and described the 3rd variable valve 17 is installed on second shore pipe 26.
The polyvinylidene difluoride (PVDF) tubular fibre filter curtain type film assembly that membrane module 32 adopts film sky, Tianjin technology company to produce, membrane pore size is 0.22 μ m, the interior external diameter of hollow-fibre membrane is respectively 0.5mm and 0.8mm.
The characteristics of the treatment system of present embodiment are that MBR (membrane bioreactor) technology is adopted in sewage disposal, and the mud of the inoculation in the membrane bioreactor 33 is the municipal wastewater treatment plant active sludge, and sludge retention time was controlled at 2 days; Dissolved oxygen concentration is controlled at 1～2mg/L.Municipal effluent enters membrane bioreactor 33, and microorganism self the katabolism effect in MBR of most of organism obtains degraded in the sewage.Sewage after the processing is set up the filtration water outlet through hollow-fibre membrane under the effect of vacuum pumping system, the sewage sludge mixed solution of high density pumps into the mud decrement device through first sludge pump 7; In the mud decrement device operational process, hydraulic detention time is 12 hours, sludge retention time is 1 day, 13 pairs of mud decrement devices of second air compressor continuous aeration, continuous air demand by second variable valve, 12 adjustings, second air compressor 13, make the mud mixed liquid in the mud decrement device be in uniform state substantially, in implementation process, will monitor DO (dissolved oxygen concentration), it is maintained about 0.5mg/L; Temperature with the thermometer controlling reactor is 25 ± 2 ℃; Measured the pH of mud mixed liquid in the mud decrement device every two hours.
Long run test result shows: after Membrane Bioreactor for Wastewater Treatment, the clearance of COD can reach 90%, but
Clearance not high, sludge concentration is up to 15000～20000mg/L.Further after the mud decrement device was handled, the COD clearance still was stabilized in more than 90% the mud mixed liquid of high density,
Clearance up to 87～90%, and sludge concentration reduces to 2500～3600mg/L, realized mud decrement and denitrification denitrogenation synchronously.See that on the whole the mud decrement effect of entire sewage mud joint processing system is up to 90%,
Clearance can reach 88～90%, the clearance of TN can reach 85～88%, has successfully realized carrying out synchronously of the efficient decrement denitrification denitrogenation of mud, makes city sewage and sludge reach the effect of synchronous processing.
Embodiment five: present embodiment is described in conjunction with Fig. 2-Fig. 4, the lamina affixad main body 30 of present embodiment is a rectangular plate, the length of rectangular plate and the ratio of width are 5: 3, thickness is 1-2cm, have a plurality of square opening 30-1 on the rectangular plate, all have groove 30-2 on each side opening wall of each square opening 30-1, the groove 30-2 on each side opening wall of each square opening 30-1 constitutes jointly three-back-shaped pickup groove, and described filler 31 is fixed on the lamina affixad main body 30 by three-back-shaped pickup groove.So be provided with, have highly air-permeable, closely, characteristic such as specific surface area is big helps the high-density growth of benthonic biology.Other composition is identical with embodiment one with annexation.
Embodiment six: in conjunction with Fig. 4 present embodiment is described, the filler 31 of present embodiment is formed by the braiding of many ciliums material.So be provided with, effectively promoted the growth and breeding of denitrifying bacteria, for denitrification provides good reaction conditions.Other composition is identical with embodiment one or two with annexation.
Claims (6)
1. mud decrement and denitrification denitrogenation coupled city sewage and sludge joint processing system, it is made up of sequence batch (biology sewage treatment equipment, first sludge pump (7), the 4th variable valve (6), mud decrement device, the 3rd variable valve (17) and second sludge pump (18); It is characterized in that:
Described sequence batch (biology sewage treatment equipment advances mud pipe (21), first shore pipe (22) and first aerator by sequence bioreactor (1), inhalent siphon (20), first and forms; First aerator is made up of first aeration head (2), first inlet pipe (23), first variable valve (3), first air compressor (4), very first time rly. (5) and first lead (24);
Described mud decrement device advances mud pipe (25) by sludge decrement reactor (8), polylith benthonic biological attachment plate (9), second aerator, second and second shore pipe (26) is formed; Second aerator is made up of second aeration head (10), second inlet pipe (27), second variable valve (12), second air compressor (13), second time relay (16) and second lead (29); Benthonic biological attachment plate (9) is made up of lamina affixad main body (30) and the filler (31) that is fixed on the lamina affixad main body (30);
Described inhalent siphon (20) is installed on the sidewall of sequence bioreactor (1) upper end, and be communicated with sequence bioreactor (1), described first advances on the sidewall that mud pipe (21) is installed in sequence bioreactor (1) lower end, and be communicated with sequence bioreactor (1), described first shore pipe (22) is installed on the diapire of sequence bioreactor (1), and be communicated with sequence bioreactor (1), described first aeration head (2) is arranged on the inside of sequence bioreactor (1), and be positioned at the bottom of sequence bioreactor (1), first aeration head (2) is communicated with by outside first air compressor (4) of first inlet pipe (23) and sequence bioreactor (1), described first variable valve (3) is installed on first inlet pipe (23), and described very first time rly. (5) is connected with first air compressor (4) by first lead (24);
Described second advances on the sidewall that mud pipe (25) is installed in sludge decrement reactor (8) upper end, and be communicated with sludge decrement reactor (8), described second shore pipe (26) is installed on the diapire of sludge decrement reactor (8), and be communicated with sludge decrement reactor (8), described polylith benthonic biological attachment plate (9) is evenly arranged in the sludge decrement reactor (8) and is positioned at the middle part of sludge decrement reactor (8), described second aeration head (10) is arranged on the inside of sludge decrement reactor (8), and be positioned at the below of benthonic biological attachment plate (9) bottom, described second aeration head (10) is communicated with by outside second air compressor (13) of second inlet pipe (27) and sludge decrement reactor (8), described second variable valve (12) is installed on second inlet pipe (27), and described second time relay (16) is connected with second air compressor (13) by second lead (29);
Described first advances mud pipe (21) is communicated with second shore pipe (26) by second sludge pump (18), described first shore pipe (22) advances mud pipe (25) by first sludge pump (7) and second and is communicated with, described the 4th variable valve (6) is installed on first shore pipe (22), and described the 3rd variable valve (17) is installed on second shore pipe (26).
2. according to described mud decrement of claim 1 and denitrification denitrogenation coupled city sewage and sludge joint processing system, it is characterized in that: described lamina affixad main body (30) is rectangular plate, the length of rectangular plate and the ratio of width are 5: 3, thickness is 1-2cm, have a plurality of square openings (30-1) on the rectangular plate, all have groove (30-2) on each side opening wall of each square opening (30-1), groove (30-2) on each side opening wall of each square opening (30-1) constitutes jointly three-back-shaped pickup groove, and described filler (31) is fixed on the lamina affixad main body (30) by three-back-shaped pickup groove.
3. according to claim 1 or 2 described mud decrements and denitrification denitrogenation coupled city sewage and sludge joint processing system, it is characterized in that: described filler (31) is formed by the braiding of many ciliums material.
4. mud decrement and denitrification denitrogenation coupled city sewage and sludge joint processing system, it is made up of film biology sewage treatment equipment, first sludge pump (7), the 4th variable valve (6), mud decrement device, the 3rd variable valve (17) and second sludge pump (18); It is characterized in that:
Described film biology sewage treatment equipment advances mud pipe (21), first shore pipe (22), membrane module (32) and first aerator by membrane bioreactor (33), inhalent siphon (20), first and forms; First aerator is made up of first aeration head (2), first inlet pipe (23), first variable valve (3) and first air compressor (4), very first time rly. (5) and first lead (24);
Described mud decrement device advances mud pipe (25) by sludge decrement reactor (8), polylith benthonic biological attachment plate (9), second aerator, second and second shore pipe (26) is formed; Second aerator is made up of second aeration head (10), second inlet pipe (27), second variable valve (12), second air compressor (13), second time relay (16) and second lead (29); Benthonic biological attachment plate (9) is made up of lamina affixad main body (30) and the filler (31) that is fixed on the lamina affixad main body (30);
Described inhalent siphon (20) is installed on the sidewall of membrane bioreactor (33) upper end, and be communicated with membrane bioreactor (33), described first shore pipe (22) is installed on the sidewall of membrane bioreactor (33) lower end, and be communicated with membrane bioreactor (33), described first advances mud pipe (21) is installed on the diapire of membrane bioreactor (33), and be communicated with membrane bioreactor (33), described first aeration head (2) is arranged on the inside of membrane bioreactor (33), and be positioned at the bottom of membrane bioreactor (33), first aeration head (2) is communicated with by outside first air compressor (4) of first inlet pipe (23) and membrane bioreactor (33), described first variable valve (3) is installed on first inlet pipe (23), described very first time rly. (5) is connected with first air compressor (4) by first lead (24), and described membrane module (32) is arranged on the middle part of membrane bioreactor (33);
Described second advances on the sidewall that mud pipe (25) is installed in sludge decrement reactor (8) upper end, and be communicated with sludge decrement reactor (8), described second shore pipe (26) is installed on the diapire of sludge decrement reactor (8), and be communicated with sludge decrement reactor (8), described polylith benthonic biological attachment plate (9) is evenly arranged in the sludge decrement reactor (8) and is positioned at the middle part of sludge decrement reactor (8), described second aeration head (10) is arranged on the inside of sludge decrement reactor (8), and be positioned at the below of benthonic biological attachment plate (9) bottom, described second aeration head (10) is communicated with by outside second air compressor (13) of second inlet pipe (27) and sludge decrement reactor (8), described second variable valve (12) is installed on second inlet pipe (27), and described second time relay (16) is connected with second air compressor (13) by second lead (29);
Described first advances mud pipe (21) is communicated with second shore pipe (26) by second sludge pump (18), described first shore pipe (22) advances mud pipe (25) by first sludge pump (7) and second and is communicated with, described the 4th variable valve (6) is installed on first shore pipe (22), and described the 3rd variable valve (17) is installed on second shore pipe (26).
5. according to described mud decrement of claim 4 and denitrification denitrogenation coupled city sewage and sludge joint processing system, it is characterized in that: described lamina affixad main body (30) is rectangular plate, the length of rectangular plate and the ratio of width are 5: 3, thickness is 1-2cm, have a plurality of square openings (30-1) on the rectangular plate, all have groove (30-2) on each side opening wall of each square opening (30-1), groove (30-2) on each side opening wall of each square opening (30-1) constitutes jointly three-back-shaped pickup groove, and described filler (31) is fixed on the lamina affixad main body (30) by three-back-shaped pickup groove.
6. according to claim 4 or 5 described mud decrements and denitrification denitrogenation coupled city sewage and sludge joint processing system, it is characterized in that: described filler (31) is formed by the braiding of many ciliums material.
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| CN102101718B (en) * | 2011-01-11 | 2012-09-05 | 彭永臻 | Sludge hydrolysis acidification coupling denitrification device and treatment method thereof |
| CN102557351A (en) * | 2012-01-19 | 2012-07-11 | 哈尔滨工业大学 | Method for reinforcing nitrogen and phosphorus removal in sewage as well as sludge reduction coupling in process |
| CN104355515B (en) * | 2014-10-18 | 2016-06-08 | 北京工业大学 | A kind of method of ferment based on sludge anaerobic enhanced biological nitrogen removal and mud decrement |
| CN105110576A (en) * | 2015-09-25 | 2015-12-02 | 哈尔滨工业大学 | A2O (anaerobic-anoxic-oxic), MBR (membrane bio-reactor) and miniature animal bio-bed set for wastewater treatment and sludge reduction and application thereof |
| CN106587544B (en) * | 2017-02-09 | 2023-03-14 | 山东建筑大学 | Enhanced phosphorus removal and sludge reduction type sewage treatment device |
| CN111847773B (en) * | 2020-07-10 | 2022-07-19 | 珠海九通水务股份有限公司 | Sewage treatment process based on multifunctional pool |
| CN113428974B (en) * | 2021-06-18 | 2023-01-10 | 黑龙江佰瑞德环境生物科技有限公司 | Membrane bioreactor and method for slowing down membrane pollution of membrane bioreactor |
| CN114988632B (en) * | 2022-04-12 | 2023-01-20 | 哈尔滨工业大学 | Domestic sewage sludge synchronous ecological treatment integrated equipment and treatment method |
| CN114605050A (en) * | 2022-04-18 | 2022-06-10 | 哈尔滨工业大学 | Sewage sludge combined treatment system and method based on biological predation synchronous sludge reduction and phosphorus recovery |
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