CN103787548B - Biological tannery wastewater treatment system and treatment method thereof - Google Patents
Biological tannery wastewater treatment system and treatment method thereof Download PDFInfo
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- CN103787548B CN103787548B CN201410037163.7A CN201410037163A CN103787548B CN 103787548 B CN103787548 B CN 103787548B CN 201410037163 A CN201410037163 A CN 201410037163A CN 103787548 B CN103787548 B CN 103787548B
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- 238000000034 method Methods 0.000 title claims abstract description 122
- 238000004065 wastewater treatment Methods 0.000 title abstract 3
- 238000005273 aeration Methods 0.000 claims abstract description 89
- 238000004062 sedimentation Methods 0.000 claims abstract description 73
- 239000002351 wastewater Substances 0.000 claims abstract description 70
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 74
- 239000010802 sludge Substances 0.000 claims description 37
- 238000010992 reflux Methods 0.000 claims description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 27
- 239000001301 oxygen Substances 0.000 claims description 27
- 229910052760 oxygen Inorganic materials 0.000 claims description 27
- 241000894006 Bacteria Species 0.000 claims description 25
- 239000012530 fluid Substances 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 241000193744 Bacillus amyloliquefaciens Species 0.000 claims description 14
- 241000193755 Bacillus cereus Species 0.000 claims description 14
- 241000194107 Bacillus megaterium Species 0.000 claims description 14
- 241000194103 Bacillus pumilus Species 0.000 claims description 14
- 239000002068 microbial inoculum Substances 0.000 claims description 14
- 230000026676 system process Effects 0.000 claims description 13
- 241000607534 Aeromonas Species 0.000 claims description 12
- 230000001580 bacterial effect Effects 0.000 claims description 12
- 239000002244 precipitate Substances 0.000 claims description 12
- 241000122230 Acinetobacter junii Species 0.000 claims description 7
- 241000194108 Bacillus licheniformis Species 0.000 claims description 7
- 241000193388 Bacillus thuringiensis Species 0.000 claims description 7
- 241000588919 Citrobacter freundii Species 0.000 claims description 7
- 241000588912 Pantoea agglomerans Species 0.000 claims description 7
- 241000589630 Pseudomonas pseudoalcaligenes Species 0.000 claims description 7
- 241000191963 Staphylococcus epidermidis Species 0.000 claims description 7
- 241000305071 Enterobacterales Species 0.000 claims description 6
- 241000607142 Salmonella Species 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 125000002723 alicyclic group Chemical group 0.000 claims description 6
- 229940097012 bacillus thuringiensis Drugs 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 6
- 230000015556 catabolic process Effects 0.000 claims description 5
- 238000006731 degradation reaction Methods 0.000 claims description 5
- 230000001546 nitrifying effect Effects 0.000 claims description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 10
- 239000010865 sewage Substances 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000593 degrading effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 239000010985 leather Substances 0.000 description 6
- 241000233866 Fungi Species 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 244000005700 microbiome Species 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 241001486707 Aeromonas dhakensis Species 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000976738 Bacillus aryabhattai Species 0.000 description 2
- 235000014469 Bacillus subtilis Nutrition 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000788995 Alicycliphilus denitrificans Species 0.000 description 1
- 241001150378 Bacillus aerophilus Species 0.000 description 1
- 241001150381 Bacillus altitudinis Species 0.000 description 1
- 241000947228 Bacillus endophyticus Species 0.000 description 1
- 241001249117 Bacillus mojavensis Species 0.000 description 1
- 241001150380 Bacillus stratosphericus Species 0.000 description 1
- 241000315694 Bacillus tequilensis Species 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000588914 Enterobacter Species 0.000 description 1
- 241000164875 Firmicutes bacterium Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 241000108664 Nitrobacteria Species 0.000 description 1
- 241000607568 Photobacterium Species 0.000 description 1
- 241000976133 Rheinheimera aquimaris Species 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention belongs to the field of sewage treatment and relates to a biological treatment method for high-concentration wastewater with high ammonia nitrogen content, in particular to a biological tannery wastewater treatment system and a treatment method thereof. The biological tannery wastewater treatment system comprises a first-stage gridding aeration tank, a horizontal flow sedimentation tank, a second-stage gridding aeration tank and a radial flow sedimentation tank which are communicated sequentially, wherein the bottom of the horizontal flow sedimentation tank is communicated with a material inlet of the first-stage gridding aeration tank through a backflow pump; and the bottom of the radial flow sedimentation tank is communicated with a material inlet of the second-stage gridding aeration tank through the backflow pump. According to the treatment method, the organic degrading proportion and the denitration function of the system are enhanced by two-stage aeration. The treatment system and the treatment method which are disclosed by the invention has the advantages that the treatment effect is obvious, running maintenance is facilitated, the energy consumption is low, and the treatment cost is low; and obvious economical and beneficial benefits are realized.
Description
Technical field
The invention belongs to sewage treatment area, relate to a kind of method for biologically treating wastewater of high density height ammonia nitrogen, particularly relate to a kind of leather-making waste water biological treatment system and treatment process thereof.
technical background:
Leather-making waste water pollutes one of maximum, the most unmanageable waste water in current trade effluent.Along with expanding economy, leather industry is still in the stage of constantly expansion, the leather-making waste water serious environment pollution of generation.Meanwhile, heavily contaminated also becomes one of obstacle of restriction leather industry development.The principal feature of leather-making waste water is exactly that Pollutant levels are large, complicated component, containing a large amount of hazardous and noxious substances, generally, the pollutent starting point concentration of leather waste water is COD:10000-20000mg/L, BOD:2000-4000mg/L, ammonia nitrogen: 100-300mg/L, SS:2000-4000mg/L, S
2-: 40-160 mg/L, Cr:1000-2500 mg/L.The course of processing complex process of leather is various, and work program is various, and the ammonium sulfate used in pickling process considerably increases the ammonia-nitrogen content in sewage.Usually sufficient pre-treatment was carried out to ensure that sewage is suitable for carrying out a biological disposal upon before leather waste water biological treatment.Conventional bioremediation has oxidation ditch process, AO method, method of entirely mixing, contact oxidation method, BAF etc.
Oxidation ditch process is a kind of technique conventional in sanitary sewage disposal process, and this method adopts surface aeration, hydraulic detention time and sludge retention time longer, excess sludge is few, and denitrification effect is relatively better.But the organism of leather-making waste water and ammonia nitrogen concentration are usually higher, waste water COD after pretreatment at more than 800mg/L, ammonia nitrogen at more than 100mg/L, seriously beyond the water quality subject range of oxidation ditch.In addition, oxidation ditch adopts surface aeration to run, and exacerbates the restriction of temperature to microorganism active during winter.
A/O method is method relatively more conventional in sanitary sewage biological treatment and trade effluent biological treatment, and the major advantage of the method is convenient operation and management, has certain denitrification effect, and without the need to nutritional supplementation, structures are few, use commonplace at present.But the denitrification effect of A/O is also unstable, and when temperature is lower especially in the winter time, denitrification effect is subject to serious suppression.The complicated component of leather-making waste water, containing being difficult to biodegradable organism in a large number, in the effluent quality of the method, COD and ammonia nitrogen are all difficult to up to standard, must add that advanced treatment program could meet emission request.
Method of entirely mixing, contact oxidation method, BAF etc. all do not have advantage in the removing of ammonia nitrogen, wherein, the requirement to water inlet of contact oxidation method and Gas biological filter is stricter, and leather-making waste water is the high-concentration waste water of complicated component, must use with other technique when using this kind of technique, to ensure system trouble-free operation simultaneously.The shortcoming of this treatment process is that effluent quality fluctuation is large, and system is not easy steady running.
Above traditional bioremediation can not reach the emission standard of leather-making waste water usually, for qualified discharge, needs to carry out advanced treatment to biological treatment water outlet.
Chinese patent CN101941782B discloses a kind for the treatment of process of leather waste water, its biological treatment system is made up of anaerobic pond and Aerobic Pond, in Aerobic Pond, the complex microorganism accounting for pool volume 1.5 ~ 5% is added in treating processes, and then add the gac that pond holds 1 ~ 6%, last aeration backflow, can discharge.This invention disposablely adds complex microorganism and gac, and make nitrobacteria in Aerobic Pond become dominant bacteria, COD clearance is 80 ~ 90%(220 ~ 308 mg/L), ammonia nitrogen removal frank is 80 ~ 90%(1.9 ~ 29 mg/L), still do not meet relevant national standard.
summary of the invention:
For the biological treatment partially disposed weak effect of existing leather-making waste water, poor stability, energy consumption is high, running maintenance is difficult present situation, through overtesting and actual motion, the present invention proposes a kind for the treatment of effect is obvious, running maintenance convenient, energy consumption is low, processing costs is little biological treatment system and treatment process thereof.
The present invention is achieved through the following technical solutions:
A kind of leather-making waste water biological treatment system, comprise be communicated with in turn one-phase grid aeration tank, horizontal sedimentation tank, two-stage grid aeration tank and radial-flow sedimentation tank, wherein, be communicated with one-phase grid aeration tank opening for feed by reflux pump again bottom described horizontal sedimentation tank, bottom described radial-flow sedimentation tank, be communicated with two-stage grid aeration tank opening for feed by reflux pump again.
According to above-mentioned leather-making waste water biological treatment system, one-phase grid aeration tank is latticed multi-stage aeration pond, inside establish 3 ~ 9 process lattice of connecting, the fluid inlet of each process lattice and liquid outlet diagonal angle are arranged, in the middle of process lattice, half wall is set, half wall height is that 1/3 ~ 1/2, half wall of process lattice wall height makes process lattice bottom be divided into two disconnected spaces; Wherein, arrange combined stuffing biofilm in middle part process lattice, the spacing of each group combined stuffing biofilm is 20 ~ 40 cm, and preferred distance is 30cm.
According to above-mentioned leather-making waste water biological treatment system, described two-stage grid aeration tank is latticed multi-stage aeration pond, and 3 ~ 9 the series connection process lattice inside established a plug-flow pond and connect with it, the fluid inlet of each process lattice and liquid outlet diagonal angle are arranged.
According to above-mentioned leather-making waste water biological treatment system, a submersible agitator is at least set in described plug-flow pond.
According to above-mentioned leather-making waste water biological treatment system, the surface load of described horizontal sedimentation tank is 2 ~ 3 m
3/ (m
2h), preferred 2.5m
3/ (m
2h); The surface load of described radial-flow sedimentation tank is 1.0 ~ 1.5 m
3/ (m
2h), preferred 1.2 m
3/ (m
2h).
Utilize a method for above-mentioned biological treatment system process leather-making waste water, comprise the following steps:
(1) pretreated leather-making waste water is passed into one-phase grid aeration tank, mix with the organic degradation active sludge in pond or complex microbial inoculum, make bacterial content in waste water be 2.8 ~ 3.2 × 10
4cFU/mL, control dissolved oxygen amount is 0-1mg/L, and the residence time is 20 ~ 30h, preferred 24h; Then, the waste water after process enters horizontal sedimentation tank and precipitates;
(2) partial sludge of horizontal sedimentation tank bottom settlings is evacuated to one-phase grid aeration tank fluid inlet through reflux pump, and reflux ratio is 90 ~ 120%, and preferably 100%, and excess sludge is regularly discharged;
(3) horizontal sedimentation tank upper liquid enters two-stage grid aeration tank, mixes with the nitrifying activated sludge in pond or complex microbial inoculum, makes bacterial content in waste water be 2.5 ~ 3.0 × 10
5cFU/mL, controls two-stage grid aeration tank head end dissolved oxygen amount 1 ~ 2 mg/L, end dissolved oxygen amount 2 ~ 3 mg/L, middle part dissolved oxygen amount between head end and end, the residence time 12 ~ 15 h, preferred 14h; Then, the waste water after process enters radial-flow sedimentation tank and precipitates;
(4) partial sludge of radial-flow sedimentation tank bottom settlings is evacuated to two-stage grid aeration tank fluid inlet through reflux pump, and reflux ratio is 120 ~ 160%, and preferably 150%, and excess sludge is regularly discharged;
(5) discharged by radial-flow sedimentation tank supernatant liquor, biological treatment completes, and can discharge after carrying out air supporting.
According to above-mentioned treatment process, the bacterium containing following quantity part in step (1) mud or composite fungus agent: genus bacillus (
bacillus) 85 ~ 90 parts, denitrogenation is addicted to alicyclic acid bacterium
(Alicycliphilus denitrificans)4 ~ 5 parts, heavy wall bacillus (
firmicutes bacterium) 1 ~ 2 part, Aeromonas (
aeromonas aquariorum) 1 ~ 2 part, citrobacter freundii (
citrobacter freundii) 1 ~ 2 part, Acinetobacter junii
(Acinetobacter junii) 1 ~ 2 part and marine bacteria pantoea agglomerans (
pantoea agglomerans) 1 ~ 2 part.
According to above-mentioned treatment process, described genus bacillus comprise bacillus pumilus (
b. pumilus) 25 ~ 28 parts, subtilis (
b. subtilis) 23 ~ 25 parts, high ground bacillus (
b. altitudini) 18 ~ 19 parts, bacillus cereus (
b. cereus) 4 ~ 5 parts, stratospheric genus bacillus (
b. stratosphericus) 3 ~ 3.5 parts, A Shi genus bacillus (
b. aryabhattai) 3 ~ 3.5 parts, bacillus megaterium (
b. megaterium) 3 ~ 3.5 parts, aerosporus (
b. aerophilus) 1 ~ 2 part, bacillus amyloliquefaciens (
b. amyloliquefaciens) 1 ~ 2 part and Te Jila genus bacillus (
b. tequilensis) 1 ~ 2 part.
According to above-mentioned treatment process, the bacterium containing following quantity part in step (3) mud or composite fungus agent: genus bacillus (
bacillus) 63 ~ 70 parts, water Lai Yinhai write from memory Salmonella (
rheinheimera aquimaris) 17 ~ 19 parts, enterobacteria (
enterobacter) 3 ~ 5 parts, staphylococcus epidermidis (
staphylococcus epidermidis) 3 ~ 5 parts, pseudomonas pseudoalcaligenes (
pseudomonas pseudoalcaligenes) 1 ~ 2 part, Aeromonas (
aeromonas aquariorum) 2 ~ 4 parts and photogenic bacterium (
photobacterium) 1 ~ 2 part.
According to above-mentioned treatment process, described genus bacillus comprise bacillus pumilus (
b. pumilus) 14 ~ 16 parts, bacillus cereus (
b. cereus) 13 ~ 15 parts, subtilis (
b. subtilis) 9 ~ 10 parts, bacillus amyloliquefaciens (
b. amyloliquefaciens) 6 ~ 9 parts, A Shi genus bacillus (
b. aryabhattai) 4 ~ 6 parts, Bacillus licheniformis (
b. licheniformis) 3 ~ 4 parts, bacillus megaterium (
b. megaterium) 3 ~ 4 parts, bacillus thuringiensis (
b. thuringiensis) 3 ~ 4 parts, endophytic Bacillus (
b. endophyticus) 1 ~ 2 part and Mo Haiwei genus bacillus (
b. mojavensis) 1 ~ 2 part.
positive beneficial effect of the present invention:
Treatment system of the present invention and method treatment effect is obvious, running maintenance is convenient, energy consumption is low, processing costs is little, has significant economic benefit and social benefit.Present system water inlet index: COD is not more than 1200mg/L, and ammonia nitrogen is not more than 180mg/L, and total chromium is not more than 1.5mg/L, and sulfonium ion is not more than 3mg/L.Effluent index after process: COD is not more than 80mg/L, and ammonia nitrogen is not more than 1mg/L, and total nitrogen is 6-10mg/L.Effluent quality is significantly better than national standard.
(1) Main Function of first stage aeration is to organic oxygenizement, arranges soft-filler biofilm and can improve removal ability to pollutent.Organic function of degrading under the situation of low aeration rate has mainly been come by amphimicrobe, under longer hydraulic detention time and low-level dissolved oxygen conditions, certain acidication effect occurs, improves the ratio of labile organic compound in sewage.
(2) the desirable larger value of the surface load of horizontal sedimentation tank, this is because the sewage load of one-phase aerating system is larger, mud generation is relatively large, the mud in small, broken bits of incomplete precipitation can enter two-stage aerating system, it is high that this operation scheme contributes to filtering out settling property, active strong mud.
(3) Main Function of subordinate phase aeration is the denitrification denitrogenation carrying out the nitrated decomposition of ammonia nitrogen and nitrate, nitrite.The aeration control of two-stage aeration tank in lower level (traditional denitrification process dissolved oxygen content 3-4 mg/L), in guarantee system like this anoxic and aerobic environment and deposit, the denitrification functions of reinforcement sludge or composite fungus agent.
(4) radial-flow sedimentation tank carries out the separation of muddy water, and the surface load of radial-flow sedimentation tank adopts lower value, to ensure the complete of precipitation, reduces the content of suspended substance in precipitation water outlet as far as possible.
(5) aeration tank dissolved oxygen in whole system all can not more than 3mg/L, because aeration rate is lower in aeration process, partial sludge or composite fungus agent are deposited in bottom aeration tank, and this does not affect the treatment effect of sewage, have certain promoter action on the contrary to dirty water purification.There is not blending in two-stage mud or composite fungus agent and one-phase, to ensure that independently function is interference-free separately.
accompanying drawing illustrates:
Fig. 1 is the schematic flow sheet of leather-making waste water biological treatment system of the present invention;
Fig. 2 is one-phase grid Aeration tank structure schematic diagram in the embodiment of the present invention 1;
Sequence number in Fig. 2: 1, process lattice, 2, combined stuffing biofilm, 3, Ban Qiang, 4, fluid inlet, 5, liquid outlet;
Fig. 3 is two-stage grid Aeration tank structure schematic diagram in the embodiment of the present invention 1;
Sequence number in Fig. 3: 1, plug-flow pond, 2, process lattice, 3, fluid inlet, 4, liquid outlet, 5, submersible agitator.
embodiment:
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Embodiment 1:
See Fig. 2 and Fig. 3, the present embodiment leather-making waste water biological treatment system comprise be communicated with in turn one-phase grid aeration tank, horizontal sedimentation tank, two-stage grid aeration tank and radial-flow sedimentation tank, wherein, be communicated with one-phase grid aeration tank opening for feed by reflux pump again bottom described horizontal sedimentation tank, bottom described radial-flow sedimentation tank, be communicated with two-stage grid aeration tank opening for feed by reflux pump again.
One-phase grid aeration tank is latticed multi-stage aeration pond, inside establish 9 process lattice of connecting, the fluid inlet of each process lattice and liquid outlet diagonal angle are arranged, in the middle of process lattice, half wall is set, half wall height is that 1/3 ~ 1/2, half wall of process lattice wall height makes process lattice bottom be divided into two disconnected spaces, wherein, arrange combined stuffing biofilm in 4th ~ 6 process lattice, the spacing of each group combined stuffing biofilm is 40cm.
Two-stage grid aeration tank is latticed multi-stage aeration pond, and 6 the series connection process lattice inside established a plug-flow pond and connect with it, the fluid inlet of each process lattice and liquid outlet diagonal angle are arranged.A submersible agitator is set in described plug-flow pond.
The surface load of horizontal sedimentation tank is 2.5m
3/ (m
2h); The surface load of described radial-flow sedimentation tank is 1.2 m
3/ (m
2h).
Embodiment 2:
The present embodiment leather-making waste water biological treatment system comprise be communicated with in turn one-phase grid aeration tank, horizontal sedimentation tank, two-stage grid aeration tank and radial-flow sedimentation tank, wherein, be communicated with one-phase grid aeration tank opening for feed by reflux pump again bottom described horizontal sedimentation tank, bottom described radial-flow sedimentation tank, be communicated with two-stage grid aeration tank opening for feed by reflux pump again.
One-phase grid aeration tank is latticed multi-stage aeration pond, inside establish 3 process lattice of connecting, the fluid inlet of each process lattice and liquid outlet diagonal angle are arranged, in the middle of process lattice, half wall is set, half wall height is that 1/3 ~ 1/2, half wall of process lattice wall height makes process lattice bottom be divided into two disconnected spaces, wherein, arrange combined stuffing biofilm in 2nd process lattice, the spacing of each group combined stuffing biofilm is 30cm.
Two-stage grid aeration tank is latticed multi-stage aeration pond, and 3 the series connection process lattice inside established a plug-flow pond and connect with it, the fluid inlet of each process lattice and liquid outlet diagonal angle are arranged.A submersible agitator is set in described plug-flow pond.
The surface load of horizontal sedimentation tank is 2.0m
3/ (m
2h); The surface load of described radial-flow sedimentation tank is 1.0 m
3/ (m
2h).
Embodiment 3:
The present embodiment leather-making waste water biological treatment system comprise be communicated with in turn one-phase grid aeration tank, horizontal sedimentation tank, two-stage grid aeration tank and radial-flow sedimentation tank, wherein, be communicated with one-phase grid aeration tank opening for feed by reflux pump again bottom described horizontal sedimentation tank, bottom described radial-flow sedimentation tank, be communicated with two-stage grid aeration tank opening for feed by reflux pump again.
One-phase grid aeration tank is latticed multi-stage aeration pond, inside establish 6 process lattice of connecting, the fluid inlet of each process lattice and liquid outlet diagonal angle are arranged, in the middle of process lattice, half wall is set, half wall height is that 1/3 ~ 1/2, half wall of process lattice wall height makes process lattice bottom be divided into two disconnected spaces, wherein, arrange combined stuffing biofilm in 3rd ~ 4 process lattice, each group combined stuffing biofilm spacing is 20cm.
Two-stage grid aeration tank is latticed multi-stage aeration pond, and 9 the series connection process lattice inside established a plug-flow pond and connect with it, the fluid inlet of each process lattice and liquid outlet diagonal angle are arranged.Two submersible agitators are set in described plug-flow pond.
The surface load of horizontal sedimentation tank is 3.0m
3/ (m
2h); The surface load of described radial-flow sedimentation tank is 1.5 m
3/ (m
2h).
Embodiment 4:
Utilize a method for embodiment 1 biological treatment system process leather-making waste water, comprise the following steps:
(1) pretreated leather-making waste water is passed into one-phase grid aeration tank, mix with the organic degradation active sludge in pond, make bacterial content in waste water be 2.96 × 10
4cFU/mL, control dissolved oxygen amount is 0.5-0.8mg/L, and the residence time is 24h; Then, the waste water after process enters horizontal sedimentation tank and precipitates;
(2) partial sludge of horizontal sedimentation tank bottom settlings is evacuated to one-phase grid aeration tank fluid inlet through reflux pump, and reflux ratio is 100%, and is regularly discharged by excess sludge;
(3) horizontal sedimentation tank upper liquid enters two-stage grid aeration tank, enters each process lattice successively, mix with the nitrifying activated sludge in pond through plug-flow pond plug-flow, makes bacterial content in waste water be 2.93 × 10
5cFU/mL, control two-stage grid aeration tank 1st ~ 2 process lattice dissolved oxygen amount is 1 ~ 1.6 mg/L, 3rd ~ 4 process lattice dissolved oxygen amounts are 1.6 ~ 2.4 mg/L, 5th ~ 6 process lattice dissolved oxygen amount 2.4 ~ 3 mg/L, residence time 14h; Then, the waste water after process enters radial-flow sedimentation tank and precipitates;
(4) partial sludge of radial-flow sedimentation tank bottom settlings is evacuated to two-stage grid aeration tank fluid inlet through reflux pump, and reflux ratio is 150%, and is regularly discharged by excess sludge;
(5) discharged by radial-flow sedimentation tank supernatant liquor, biological treatment completes, and can discharge after carrying out air supporting, and water outlet detects data in table 1.
Wherein, step (1) mud contains the bacterium of following quantity part: genus bacillus 88 parts, denitrogenation are addicted to alicyclic acid bacterium 5 parts, heavy wall bacillus 1 part, Aeromonas 2 parts, citrobacter freundii 2 parts, Acinetobacter junii 1 part and marine bacteria pantoea agglomerans 1 part; Described genus bacillus comprises again bacillus pumilus 28 parts, subtilis 23 parts, high ground bacillus 19 parts, bacillus cereus 4 parts, stratospheric genus bacillus 3.5 parts, A Shi genus bacillus 3 parts, bacillus megaterium 3.5 parts, aerosporus 1 part, bacillus amyloliquefaciens 2 parts and Te Jila genus bacillus 1 part.Containing the bacterium of following quantity part in step (3) mud: genus bacillus 67 parts, water Lai Yinhai write from memory Salmonella 18 parts, enterobacteria 4 parts, staphylococcus epidermidis 4 parts, pseudomonas pseudoalcaligenes 2 parts, Aeromonas 3 parts and photogenic bacterium 2 parts; Described genus bacillus comprises again bacillus pumilus 15 parts, bacillus cereus 14 parts, subtilis 10 parts, bacillus amyloliquefaciens 8 parts, A Shi genus bacillus 6 parts, Bacillus licheniformis 3 parts, bacillus megaterium 4 parts, bacillus thuringiensis 3 parts, endophytic Bacillus 2 parts and Mo Haiwei genus bacillus 2 parts.
Embodiment 5:
Utilize a method for embodiment 2 biological treatment system process leather-making waste water, comprise the following steps:
(1) pretreated leather-making waste water is passed into one-phase grid aeration tank, mix with the organic degradation active sludge in pond, make bacterial content in waste water be 2.8 × 10
4cFU/mL, control dissolved oxygen amount is 0-0.5mg/L, and the residence time is 20h; Then, the waste water after process enters horizontal sedimentation tank and precipitates;
(2) partial sludge of horizontal sedimentation tank bottom settlings is evacuated to one-phase grid aeration tank fluid inlet through reflux pump, and reflux ratio is 90%, and is regularly discharged by excess sludge;
(3) horizontal sedimentation tank upper liquid enters two-stage grid aeration tank, enters each process lattice successively, mix with the nitrifying activated sludge in pond through plug-flow pond plug-flow, makes bacterial content in waste water be 2.5 × 10
5cFU/mL, control two-stage grid aeration tank the 1st process lattice dissolved oxygen amount is 1.2 ~ 1.8 mg/L, the 2nd process lattice dissolved oxygen amount is 1.8 ~ 2.2 mg/L, the 3rd process lattice dissolved oxygen amount 2.2 ~ 2.5 mg/L, residence time 12h; Then, the waste water after process enters radial-flow sedimentation tank and precipitates;
(4) partial sludge of radial-flow sedimentation tank bottom settlings is evacuated to two-stage grid aeration tank fluid inlet through reflux pump, and reflux ratio is 120%, and is regularly discharged by excess sludge;
(5) discharged by radial-flow sedimentation tank supernatant liquor, biological treatment completes, and can discharge after carrying out air supporting, and water outlet detects data in table 1.
Wherein, step (1) mud contains the bacterium of following quantity part: genus bacillus 85 parts, denitrogenation are addicted to alicyclic acid bacterium 5 parts, heavy wall bacillus 2 parts, Aeromonas 2 parts, citrobacter freundii 2 parts, Acinetobacter junii 2 parts and marine bacteria pantoea agglomerans 2 parts; Described genus bacillus comprises again bacillus pumilus 27 parts, subtilis 24 parts, high ground bacillus 18 parts, bacillus cereus 4 parts, stratospheric genus bacillus 3 parts, A Shi genus bacillus 3 parts, bacillus megaterium 3 parts, aerosporus 1 part, bacillus amyloliquefaciens 1 part and Te Jila genus bacillus 1 part.Containing the bacterium of following quantity part in step (3) mud: genus bacillus 70 parts, water Lai Yinhai write from memory Salmonella 17 parts, enterobacteria 4 parts, staphylococcus epidermidis 3 parts, pseudomonas pseudoalcaligenes 2 parts, Aeromonas 2 parts and photogenic bacterium 2 parts; Described genus bacillus comprises again bacillus pumilus 16 parts, bacillus cereus 15 parts, subtilis 9 parts, bacillus amyloliquefaciens 9 parts, A Shi genus bacillus 6 parts, Bacillus licheniformis 4 parts, bacillus megaterium 4 parts, bacillus thuringiensis 3 parts, endophytic Bacillus 2 parts and Mo Haiwei genus bacillus 2 parts.
Embodiment 6:
Utilize a method for embodiment 3 biological treatment system process leather-making waste water, comprise the following steps:
(1) pretreated leather-making waste water is passed into one-phase grid aeration tank, mix with the complex microbial inoculum in pond, make bacterial content in waste water be 3.2 × 10
4cFU/mL, control dissolved oxygen amount is 0.5 ~ 1mg/L, and the residence time is 30h; Then, the waste water after process enters horizontal sedimentation tank and precipitates;
(2) partial sludge of horizontal sedimentation tank bottom settlings is evacuated to one-phase grid aeration tank fluid inlet through reflux pump, and reflux ratio is 120%, and is regularly discharged by excess sludge;
(3) horizontal sedimentation tank upper liquid enters two-stage grid aeration tank, enters each process lattice successively, mix with the complex microbial inoculum in pond through plug-flow pond plug-flow, makes bacterial content in waste water be 3.0 × 10
5cFU/mL, control two-stage grid aeration tank 1st ~ 3 process lattice dissolved oxygen amount is 1.5 ~ 2.0 mg/L, 4th ~ 6 process lattice dissolved oxygen amounts are 2.0 ~ 2.5 mg/L, 7th ~ 9 process lattice dissolved oxygen amount 2.5 ~ 3.0 mg/L, residence time 15h; Then, the waste water after process enters radial-flow sedimentation tank and precipitates;
(4) partial sludge of radial-flow sedimentation tank bottom settlings is evacuated to two-stage grid aeration tank fluid inlet through reflux pump, and reflux ratio is 160%, and is regularly discharged by excess sludge;
(5) discharged by radial-flow sedimentation tank supernatant liquor, biological treatment completes, and can discharge after carrying out air supporting, and water outlet detects data in table 1.
Wherein, step (1) complex microbial inoculum contains the bacterium of following quantity part: genus bacillus 90 parts, denitrogenation are addicted to alicyclic acid bacterium 4 parts, heavy wall bacillus 2 parts, Aeromonas 1 part, citrobacter freundii 1 part, Acinetobacter junii 1 part and marine bacteria pantoea agglomerans 1 part; Described genus bacillus comprises again bacillus pumilus 28 parts, subtilis 25 parts, high ground bacillus 18 parts, bacillus cereus 5 parts, stratospheric genus bacillus 3.5 parts, A Shi genus bacillus 3.5 parts, bacillus megaterium 3 parts, aerosporus 2 parts, bacillus amyloliquefaciens 1 part and Te Jila genus bacillus 1 part.Containing the bacterium of following quantity part in step (3) complex microbial inoculum: genus bacillus 63 parts, water Lai Yinhai write from memory Salmonella 19 parts, enterobacteria 5 parts, staphylococcus epidermidis 5 parts, pseudomonas pseudoalcaligenes 2 parts, Aeromonas 4 parts and photogenic bacterium 2 parts; Described genus bacillus comprises again bacillus pumilus 14 parts, bacillus cereus 13 parts, subtilis 9 parts, bacillus amyloliquefaciens 6 parts, A Shi genus bacillus 6 parts, Bacillus licheniformis 4 parts, bacillus megaterium 4 parts, bacillus thuringiensis 3 parts, endophytic Bacillus 2 parts and Mo Haiwei genus bacillus 2 parts.
Embodiment 7:
Utilize a method for embodiment 1 biological treatment system process leather-making waste water, comprise the following steps:
(1) pretreated leather-making waste water is passed into one-phase grid aeration tank, mix with the complex microbial inoculum in pond, make bacterial content in waste water be 2.96 × 10
4cFU/mL, control dissolved oxygen amount is 0.5-0.8mg/L, and the residence time is 24h; Then, the waste water after process enters horizontal sedimentation tank and precipitates;
(2) partial sludge of horizontal sedimentation tank bottom settlings is evacuated to one-phase grid aeration tank fluid inlet through reflux pump, and reflux ratio is 100%, and is regularly discharged by excess sludge;
(3) horizontal sedimentation tank upper liquid enters two-stage grid aeration tank, enters each process lattice successively, mix with the complex microbial inoculum in pond through plug-flow pond plug-flow, makes bacterial content in waste water be 2.93 × 10
5cFU/mL, control two-stage grid aeration tank 1st ~ 2 process lattice dissolved oxygen amount is 1 ~ 1.6 mg/L, 3rd ~ 4 process lattice dissolved oxygen amounts are 1.6 ~ 2.4 mg/L, 5th ~ 6 process lattice dissolved oxygen amount 2.4 ~ 3 mg/L, residence time 14h; Then, the waste water after process enters radial-flow sedimentation tank and precipitates;
(4) partial sludge of radial-flow sedimentation tank bottom settlings is evacuated to two-stage grid aeration tank fluid inlet through reflux pump, and reflux ratio is 150%, and is regularly discharged by excess sludge;
(5) discharged by radial-flow sedimentation tank supernatant liquor, biological treatment completes, and can discharge after carrying out air supporting, and water outlet detects data in table 1.
Wherein, step (1) complex microbial inoculum contains the bacterium of following quantity part: genus bacillus 87.5 parts, denitrogenation are addicted to alicyclic acid bacterium 4.5 parts, heavy wall bacillus 2 parts, Aeromonas 1.5 parts, citrobacter freundii 1.5 parts, Acinetobacter junii 1.5 parts and marine bacteria pantoea agglomerans 1.5 parts; Described genus bacillus comprises again bacillus pumilus 26.5 parts, subtilis 24 parts, high ground bacillus 18.5 parts, bacillus cereus 4.5 parts, stratospheric genus bacillus 3.5 parts, A Shi genus bacillus 3 parts, bacillus megaterium 3.5 parts, aerosporus 1 part, bacillus amyloliquefaciens 2 parts and Te Jila genus bacillus 1 part.Containing the bacterium of following quantity part in step (3) complex microbial inoculum: genus bacillus 66 parts, water Lai Yinhai write from memory Salmonella 18 parts, enterobacteria 4 parts, staphylococcus epidermidis 4 parts, pseudomonas pseudoalcaligenes 1 part, Aeromonas 3 parts and photogenic bacterium 2 parts; Described genus bacillus comprises again bacillus pumilus 15 parts, bacillus cereus 14 parts, subtilis 10 parts, bacillus amyloliquefaciens 7.5 parts, A Shi genus bacillus 5 parts, Bacillus licheniformis 4 parts, bacillus megaterium 4 parts, bacillus thuringiensis 3.5 parts, endophytic Bacillus 2 parts and Mo Haiwei genus bacillus 1 part.
The treatment stage that table 1 embodiment 4 ~ 7 being each, water outlet detects data
Claims (8)
1. utilize a method for biological treatment system process leather-making waste water, it is characterized in that, comprise the following steps:
(1) pretreated leather-making waste water is passed into one-phase grid aeration tank, mix with the organic degradation active sludge in pond or complex microbial inoculum, make bacterial content in waste water reach 2.8 ~ 3.2 × 10
4cFU/mL, control dissolved oxygen amount is 0-1mg/L, and the residence time is 20 ~ 30h; Then, the waste water after process enters horizontal sedimentation tank and precipitates;
Bacterium containing following quantity part in described organic degradation mud or complex microbial inoculum: genus bacillus 85 ~ 90 parts, denitrogenation are addicted to alicyclic acid bacterium 4 ~ 5 parts, heavy wall bacillus 1 ~ 2 part, Aeromonas 1 ~ 2 part, citrobacter freundii 1 ~ 2 part, Acinetobacter junii 1 ~ 2 part and marine bacteria pantoea agglomerans 1 ~ 2 part;
(2) partial sludge of horizontal sedimentation tank bottom settlings is evacuated to one-phase grid aeration tank fluid inlet through reflux pump, and reflux ratio is 90 ~ 120%, and is regularly discharged by excess sludge;
(3) horizontal sedimentation tank upper liquid enters two-stage grid aeration tank, mixes with the nitrifying activated sludge in pond or complex microbial inoculum, makes bacterial content in waste water reach 2.5 ~ 3.0 × 10
5cFU/mL, controls two-stage grid aeration tank head end dissolved oxygen amount 1 ~ 2 mg/L, end dissolved oxygen amount 2 ~ 3 mg/L, middle part dissolved oxygen amount between head end and end, the residence time 12 ~ 15 h; Then, the waste water after process enters radial-flow sedimentation tank and precipitates;
Bacterium containing following quantity part in described nitrifying activated sludge or complex microbial inoculum: genus bacillus 63 ~ 70 parts, water Lai Yinhai write from memory Salmonella 17 ~ 19 parts, enterobacteria 3 ~ 5 parts, staphylococcus epidermidis 3 ~ 5 parts, pseudomonas pseudoalcaligenes 1 ~ 2 part, Aeromonas 2 ~ 4 parts and photogenic bacterium 1 ~ 2 part;
(4) partial sludge of radial-flow sedimentation tank bottom settlings is evacuated to two-stage grid aeration tank fluid inlet through reflux pump, and reflux ratio is 120 ~ 160%, and is regularly discharged by excess sludge;
(5) discharged by radial-flow sedimentation tank supernatant liquor, biological treatment completes, and can discharge after carrying out air supporting.
2. the method utilizing biological treatment system process leather-making waste water according to claim 1, is characterized in that: the genus bacillus described in step (1) comprises bacillus pumilus 25 ~ 28 parts, subtilis 23 ~ 25 parts, high ground bacillus 18 ~ 19 parts, bacillus cereus 4 ~ 5 parts, stratospheric genus bacillus 3 ~ 3.5 parts, A Shi genus bacillus 3 ~ 3.5 parts, bacillus megaterium 3 ~ 3.5 parts, aerosporus 1 ~ 2 part, bacillus amyloliquefaciens 1 ~ 2 part and Te Jila genus bacillus 1 ~ 2 part.
3. the method utilizing biological treatment system process leather-making waste water according to claim 1, is characterized in that: the genus bacillus described in step (3) comprises bacillus pumilus 14 ~ 16 parts, bacillus cereus 13 ~ 15 parts, subtilis 9 ~ 10 parts, bacillus amyloliquefaciens 6 ~ 9 parts, A Shi genus bacillus 4 ~ 6 parts, Bacillus licheniformis 3 ~ 4 parts, bacillus megaterium 3 ~ 4 parts, bacillus thuringiensis 3 ~ 4 parts, endophytic Bacillus 1 ~ 2 part and Mo Haiwei genus bacillus 1 ~ 2 part.
4. the method utilizing biological treatment system process leather-making waste water according to any one of claim 1 ~ 3, is characterized in that: this biological treatment system comprise be communicated with in turn one-phase grid aeration tank, horizontal sedimentation tank, two-stage grid aeration tank and radial-flow sedimentation tank; Wherein, bottom described horizontal sedimentation tank, be communicated with one-phase grid aeration tank opening for feed by reflux pump again, bottom described radial-flow sedimentation tank, be communicated with two-stage grid aeration tank opening for feed by reflux pump again.
5. the method utilizing biological treatment system process leather-making waste water according to claim 4, it is characterized in that: one-phase grid aeration tank is latticed multi-stage aeration pond, inside establish 3 ~ 9 process lattice of connecting, the fluid inlet of each process lattice and liquid outlet diagonal angle are arranged, in the middle of process lattice, half wall is set, half wall height is that 1/3 ~ 1/2, half wall of process lattice wall height makes process lattice bottom be divided into two disconnected spaces; Wherein, arrange combined stuffing biofilm in middle part process lattice, the spacing of each group combined stuffing biofilm is 20 ~ 40 cm.
6. the method utilizing biological treatment system process leather-making waste water according to claim 4, it is characterized in that: described two-stage grid aeration tank is latticed multi-stage aeration pond, 3 ~ 9 the series connection process lattice inside established a plug-flow pond and connect with it, the fluid inlet of each process lattice and liquid outlet diagonal angle are arranged.
7. the method utilizing biological treatment system process leather-making waste water according to claim 6, is characterized in that: at least arrange a submersible agitator in described plug-flow pond.
8. the method utilizing biological treatment system process leather-making waste water according to claim 4, is characterized in that: the surface load of described horizontal sedimentation tank is 2 ~ 3 m
3/ (m
2h); The surface load of described radial-flow sedimentation tank is 1.0 ~ 1.5 m
3/ (m
2h).
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| CN109536401B (en) * | 2018-11-07 | 2022-02-18 | 齐齐哈尔大学 | Compound microbial fertilizer, preparation method thereof and application thereof in promoting rice growth |
| CN109678294A (en) * | 2019-01-03 | 2019-04-26 | 广州大学 | A kind of heat-engine plant desulfurized waste water integrated treatment method |
| CN110468078B (en) * | 2019-08-27 | 2022-03-29 | 暨南大学 | Rheinheimer HNAD-02 and application thereof in wastewater denitrification |
| CN111996138B (en) * | 2020-08-10 | 2022-03-08 | 三峡大学 | Reduced strain Ylb10 and application thereof in reduction of Cr (VI) |
| TWI774401B (en) * | 2021-05-31 | 2022-08-11 | 丁彥凱 | Highly efficient and phased activated sludge system and the same method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19716939C2 (en) * | 1997-04-23 | 2002-06-27 | Bernd Diering | Process and wastewater treatment plant for the biological treatment of dye-containing wastewater from the textile and leather industry |
| JP2003053384A (en) * | 2001-08-23 | 2003-02-25 | Nippon Steel Corp | Method for removing nitrogen and phosphorus from waste water and facility therefor |
| CN101830609A (en) * | 2010-05-28 | 2010-09-15 | 浙江大学 | Method for removing ammonia nitrogen from artificial leather manufacturing waste water |
| CN101941782A (en) * | 2010-09-27 | 2011-01-12 | 福建微水环保技术有限公司 | Method for treating leather wastewater |
| CN102701439A (en) * | 2012-06-20 | 2012-10-03 | 河南工业大学 | Enhanced sewage pretreatment technology |
-
2014
- 2014-01-26 CN CN201410037163.7A patent/CN103787548B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19716939C2 (en) * | 1997-04-23 | 2002-06-27 | Bernd Diering | Process and wastewater treatment plant for the biological treatment of dye-containing wastewater from the textile and leather industry |
| JP2003053384A (en) * | 2001-08-23 | 2003-02-25 | Nippon Steel Corp | Method for removing nitrogen and phosphorus from waste water and facility therefor |
| CN101830609A (en) * | 2010-05-28 | 2010-09-15 | 浙江大学 | Method for removing ammonia nitrogen from artificial leather manufacturing waste water |
| CN101941782A (en) * | 2010-09-27 | 2011-01-12 | 福建微水环保技术有限公司 | Method for treating leather wastewater |
| CN102701439A (en) * | 2012-06-20 | 2012-10-03 | 河南工业大学 | Enhanced sewage pretreatment technology |
Non-Patent Citations (3)
| Title |
|---|
| 制革废水治理工程一例;郑展飞;《给水排水》;19991231;第43卷(第11期);第43-45页 * |
| 姜应和等.第16章活性污泥法.《水质工程学 下》.机械工业出版社,2010,(第1版), * |
| 混凝沉淀-两段接触氧化法处理制革废水工程实践;阎玉荣等;《城市环境与城市生态》;20041031;第17卷(第5期);第40-41页 * |
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