CN109292972A - A method of the amphitroph filter tank synchronous denitrification dephosphorizing based on troilite - Google Patents
A method of the amphitroph filter tank synchronous denitrification dephosphorizing based on troilite Download PDFInfo
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- CN109292972A CN109292972A CN201811453848.4A CN201811453848A CN109292972A CN 109292972 A CN109292972 A CN 109292972A CN 201811453848 A CN201811453848 A CN 201811453848A CN 109292972 A CN109292972 A CN 109292972A
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- troilite
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- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 17
- 239000010865 sewage Substances 0.000 claims abstract description 47
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 24
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 23
- 239000011574 phosphorus Substances 0.000 claims abstract description 23
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 230000001651 autotrophic effect Effects 0.000 claims abstract description 20
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 19
- 239000011707 mineral Substances 0.000 claims abstract description 19
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000010802 sludge Substances 0.000 claims abstract description 14
- 241000894006 Bacteria Species 0.000 claims abstract description 12
- 229910052806 inorganic carbonate Inorganic materials 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims description 20
- 238000011081 inoculation Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 229910001748 carbonate mineral Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012136 culture method Methods 0.000 claims description 3
- 235000015097 nutrients Nutrition 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 239000011777 magnesium Substances 0.000 claims 1
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 abstract description 15
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 4
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 9
- 239000011028 pyrite Substances 0.000 description 8
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 8
- 229910052683 pyrite Inorganic materials 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 4
- 239000010459 dolomite Substances 0.000 description 4
- 229910000514 dolomite Inorganic materials 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 235000014380 magnesium carbonate Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910021646 siderite Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 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
- 230000018199 S phase Effects 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The method of the invention discloses a kind of amphitroph filter tank synchronous denitrification dephosphorizing based on troilite, belongs to technical field of sewage.Troilite or troilite and inorganic carbonate mineral are loaded into reactor after mixing, the sludge that the bacterium containing autotrophic denitrification is inoculated with into reactor carries out biofilm, treatment sewage is passed through into reactor, the carbon-nitrogen ratio that sewage is controlled by adding organic carbon source is 0.5~12, reaction system is formed as amphitroph filter tank, and sewage carries out denitrogenation dephosphorizing in amphitroph filter tank.Biofilter of the present invention is simple and easy, hydraulic detention time only needs 0.3~1.5h water outlet that can meet the requirements when handling Nitrogen-and Phosphorus-containing sewage using the biofilter, Nitrogen/Phosphorus Removal is excellent, it is low in cost, it is suitable for engineer application, simultaneously compared to traditional sulphur autotrophic denitrification biofilter, it is discharged sulfate concentration and is greatly reduced.
Description
Technical field
The invention belongs to technical field of sewage, raw more specifically to a kind of mixotrophism based on troilite
The method of object filter tank synchronous denitrification dephosphorizing.
Background technique
In recent years, country's investment substantial contribution carries out the research and development and application of environmental protection technology.Wherein, the mark that mentions of sewage treatment changes
It makes and carries out like a raging fire, various technologies also continue to bring out.But the higher cost that these technologies have, some effects are limited, very
More technologies need to consume a large amount of energy in application.Therefore, low energy consumption, low cost, efficient technology are just by market institute's phase
To.
The advanced treating of nitrogen and phosphorus is the most important thing that sewage treatment proposes mark transformation.Biology side in sewage water treatment method at present
The relative cost of method is minimum, is most widely used.Heterotrophic denitrification technology and chemical dephosphorization technology are at present using relatively broad
Two kinds of further treatment techniques.But the former wants additional organic carbon source, the latter wants dosing coagulant, although its efficiency is relatively
Height, but cost is all higher, and dosage is difficult to control, and it is big that in addition there are sludge quantities, the high problem of cost of disposal.And in recent years
More and more results of study confirm the effect in terms of Sewage Biological Treatment such as troilite, inorganic carbonate mineral, these
Mineral are low in cost, and it is good environmentally conscious materials that property, which is stablized,.
Sulphur autotrophic denitrification is that one kind has opposite low energy consumption and efficient nutrient removal technology, in recent years by
Extensive concern, but its rate is fast not as good as heterotrophic denitrification, exists simultaneously the big problem of sulfate radical yield, such as Publication No.
The patent of invention of CN103626293 A can synchronize using magnetic iron ore biofilter and denitrogenate phosphorus, but hydraulic detention time
In 12h or more, the value of its engineer application is affected, while the generation of sulfate radical is also more.Therefore, in conjunction with heterotrophic denitrification with
Sulphur autotrophic denitrification finds suitable nutrition-allocated proportion mode, it will be able to while retaining sulphur autotrophic denitrification and heterotrophic denitrification
Advantage achievees the effect that fast denitrogenation dephosphorization, on the one hand accelerates reaction speed, on the one hand reduces the generation of sulfate radical, and add
The stability and richness of microbial population in strong reactor, and then greatly reduced with pure heterotrophic denitrification compared with run at
This, while saving dephosphorization cost.
In addition, China Patent Publication No. CN101050031A, data of publication of application is on October 10th, 2007, innovation and creation name
Referred to as: the synchronous method and reactor for removing useless Organic substance in water, sulfide and nitrate solves existing processing technique and exists
There are deficiencies at high cost, easily causing secondary pollution in processing sulfur-bearing nitrogenous effluent.The invention using sulphur autotrophic denitrification bacterium and
The method that heterotrophic denitrifying Bacteria biomembrane handles waste water.Reactor is static bed biomembrane reactor, and filler is volcano
Rock or active carbon, the middle and lower part of cylinder lumen form reaction zone, and the top of cylinder lumen forms settling zone, collection chamber inner cavity
Middle and upper part form plenum zone, form storage area between the bottom and overfalling weir of collection chamber inner cavity.The side of the invention
Method is difficult to effectively realize synchronous denitrification dephosphorizing, and application range is relatively narrow, not applicable to the waste water of not sulfur compound.
Summary of the invention
1, it to solve the problems, such as
For being difficult to realize efficiently synchronous denitrification dephosphorizing in current sewage disposal process, propose a kind of based on troilite
The method of amphitroph filter tank synchronous denitrification dephosphorizing, in conjunction with the amphitroph of sulphur autotrophic denitrification and heterotrophic denitrification
Quick denitrogenation dephosphorizing is realized in filter tank；It is possible to further reduce sulfuric acid Root yield in operating cost and operational process.
Sulphur autotrophic denitrification rate is low, sulfuric acid Root yield is high, consumes basicity；Heterotrophic denitrification operating cost is high, and shortage is removed
Phosphorus ability generates basicity, and the present invention proposes the amphitroph filter tank based on troilite, and sulphur autotrophic denitrification and heterotrophism is anti-
The fusion of the characteristics of nitrification height, learns from other's strong points to offset one's weaknesses, and carries out the synchronous denitrification dephosphorizing of simple, economic, efficient low-sulfur acid group release.
2, technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of method of amphitroph filter tank synchronous denitrification dephosphorizing based on troilite of the invention, by troilite or
Person's troilite and inorganic carbonate mineral are loaded into reactor after mixing, and bacterium containing autotrophic denitrification is inoculated with into reactor
Sludge carry out biofilm, treatment sewage is passed through into reactor, by add organic carbon source control sewage carbon-nitrogen ratio be 0.5
~12, reaction system is formed as amphitroph filter tank, and sewage carries out denitrogenation dephosphorizing in amphitroph filter tank.
Specific steps are as follows:
The preparation and filling of step (1), filler
Troilite or troilite are uniformly mixed with inorganic carbonate mineral, are loaded into reactor；Wherein, troilite
It can be pyrite or magnetic iron ore；
Step (2), inoculation membrane formation
To the sludge of the reactor inoculation sulfur-bearing autotrophic denitrification bacterium in step 1), Solution culture method is added and carries out inoculation extension
Film；
Step (3), sewage treatment
It is passed through treatment sewage to reactor, and adds organic carbon source to treatment sewage during water inlet, passes through throwing
The carbon-nitrogen ratio for adding organic carbon source control sewage is 0.5~12, and sewage flows through reactor in a manner of upper up-flow, forms reaction system
For amphitroph filter tank, in 0.3~1.5h, sewage exists the hydraulic detention time of the biofilter of control coupling filler composition
Denitrogenation dephosphorizing is carried out in amphitroph filter tank, completes the processing of sewage nitrogen and phosphorus.
Preferably, inorganic carbonate mineral are one of lime stone, dolomite, siderite, magnesite, calcite.
Preferably, by troilite and carbonate mineral volume ratio are as follows: 4~12:0~1.
Preferably, the carbon-nitrogen ratio that sewage is controlled by adding organic carbon source is 1~5.
3, beneficial effect
Compared with the prior art, the invention has the benefit that
(1) compared to troilite autotrophic denitrification, the involvement of heterotrophic denitrification improves reaction rate, so that HRT is substantially
It reduces, it is only necessary to 0.3-1.5h, while the yield of autotrophic denitrification sulfate radical is reduced, the consumption of carbonate is also reduced,
And the release of calcium ions and magnesium ions, and the addition of organic carbon source enhances the growth of sulfate reducing bacteria, is further reduced sulfuric acid
The generation of root；
(2) compared to heterotrophic denitrification, present invention reduces the usage amounts of organic carbon source, also reduce alkali produced by neutralization
The amount of the acid of degree, is greatly reduced operating cost, and had both the function of dephosphorization；
(3) autotrophy heterotrophism forms collaboration, and the carbon dioxide that heterotrophism generates can be used as inorganic carbon source, and autotrophy generates a part
Organic matter can also be used as organic carbon source, reach synergistic effect；
(3) existing autotrophic bacteria has heterotrophicy bacteria again in reactor, does not repel mutually between them, simultaneously because troilite
Autotrophic denitrification generates ferrous iron, can be used as new electron donor, so that the richness of bacterium colony increases in system, stability adds
By force；
(4) compared to troilite autotrophic denitrification, since heterotrophism colony growth rate is fast, the biofilm time of mixotrophism column
Substantially shorten, only needs 2~4 days；
(5) mineral resources are utilized, realize the reasonable utilization of mineral resources；
(6) low in cost, future in engineering applications is broad, and be easy to by the basis of heterotrophic denitrification by adding sulphur
Iron ore, inorganic carbonate mineral filler, or by the basis of troilite autotrophic denitrification by adding suitable organic carbon
Source, old engineering to be transformed.
Detailed description of the invention
Fig. 1 is the Inlet and outlet water concentration of nitrogen and phosphorus of operation 101d in biofilter in the present embodiment 1；
Fig. 2 is the Inlet and outlet water sulfate concentration of operation 101d in biofilter in the present embodiment 1；
Fig. 3 is the Inlet and outlet water concentration of nitrogen and phosphorus of operation 77d in biofilter in the present embodiment 2；
Fig. 4 is the Inlet and outlet water sulfate concentration of operation 77d in biofilter in the present embodiment 2.
Specific embodiment
Hereafter to the detailed description of exemplary embodiment of the present invention with reference to attached drawing, although these exemplary embodiment quilts
Sufficiently describe in detail so that those skilled in the art can implement the present invention, it is to be understood that can realize other embodiments and
Can without departing from the spirit and scope of the present invention to the present invention various changes can be made.Hereafter to the embodiment of the present invention
More detailed description is not limited to required the scope of the present invention, and just to be illustrated and do not limit pair
The description of the features of the present invention and feature to propose to execute best mode of the invention, and is sufficient to make those skilled in the art
It can implement the present invention.Therefore, the scope of the invention is only defined by the appended claims.Troilite is based in following embodiments
Amphitroph filter tank synchronous denitrification dephosphorizing method implementation steps are as follows:
Implementation steps are as follows:
The preparation and filling of step (1), filler
Troilite or troilite are uniformly mixed with inorganic carbonate mineral, are loaded into reactor；
Step (2), inoculation membrane formation
To the sludge of the reactor inoculation sulfur-bearing autotrophic denitrification bacterium in step 1), Solution culture method is added and carries out inoculation extension
Film；
Step (3), sewage treatment
It is passed through treatment sewage to reactor, and adds organic carbon source to treatment sewage during water inlet, passes through throwing
The carbon-nitrogen ratio for adding organic carbon source control sewage is 0.5~12, and sewage flows through reactor in a manner of upper up-flow, forms reaction system
For amphitroph filter tank, in 0.3~1.5h, sewage exists the hydraulic detention time of the biofilter of control coupling filler composition
Denitrogenation dephosphorizing is carried out in amphitroph filter tank, completes the processing of sewage nitrogen and phosphorus.
Embodiment 1
The present embodiment, using lime stone as inorganic carbon source, is uniformly mixed using magnetic iron ore as sulphur source according to volume ratio 9:1
It closes, prepares the filler of total volume 10L, two kinds of mineral average grain diameters are respectively 4mm, 3mm.Filler is loaded into reactor,
Simultaneously culture solution is added in inoculation anaerobic sludge, and culture completed biofilm after 3 days.It is passed through to reactor into water, adds methanol in water inlet, make
It obtains carbon-nitrogen ratio in sewage and runs Inlet and outlet water nitrogen p and s acid group such as Fig. 1 institute during 101d in 3 or so, hydraulic detention time 1h
Show.Water inlet nitrogen be averaged 11.0mg/l, and water inlet phosphorus be averaged 0.74mg/l, is discharged nitrogen and is averaged 0.32mg/l, is discharged phosphorus and is averaged 0.07mg/
L, water outlet sulfate radical are averaged 65.3mg/l.
The present embodiment amphitroph filter tank, sewage carry out denitrogenation dephosphorizing in amphitroph filter tank, realize
Synchronous denitrogenation dephosphorizing, not only can be reduced the yield of sulfate radical, but also further improve reaction rate, so that HRT is big
Width reduces, it is only necessary to 0.3-1.5h.
Embodiment 2
The present embodiment, using lime stone as inorganic carbon source, is uniformly mixed using pyrite as sulphur source according to volume ratio 4:1,
The filler of total volume 2.3L is prepared, three kinds of mineral average grain diameters are respectively 4mm, 1mm.Filler is loaded into reactor, is connect
Simultaneously culture solution is added in kind anaerobic sludge, and culture completed biofilm after 4 days.It is passed through to reactor into water, adds glucose in water inlet, make
It obtains carbon-nitrogen ratio in sewage and runs Inlet and outlet water nitrogen p and s acid group such as Fig. 2 institute during 77d in 5 or so, hydraulic detention time 0.3h
Show.Water inlet nitrogen be averaged 8.7mg/l, and water inlet phosphorus be averaged 1.1mg/l, is discharged nitrogen and is averaged 0.24mg/l, is discharged phosphorus and is averaged 0.07mg/l,
Water outlet sulfate radical is averaged 71.7mg/l.
Embodiment 3
The present embodiment, using siderite as inorganic carbon source, is uniformly mixed using pyrite as sulphur source according to volume ratio 20:7,
The filler of total volume 9L is prepared, three kinds of mineral average grain diameters are respectively 3.3mm, 3.6mm.Filler is loaded into reactor,
Simultaneously culture solution is added in inoculation anaerobic sludge, completes biofilm after continuing 4 days.It is passed through to reactor into water, adds ethyl alcohol in water inlet, make
In sewage carbon-nitrogen ratio run nitrogen of intaking during 100d and be averaged 12.3mg/l in 2 or so, hydraulic detention time 1.5h, phosphorus is put down
Equal 1.1mg/l, water outlet nitrogen be averaged 0.42mg/l, and water outlet phosphorus is averaged 0.05mg/l, are discharged sulfate radical and are averaged 62mg/l.
Embodiment 4
The present embodiment, using dolomite as inorganic carbon source, is uniformly mixed using pyrite as sulphur source according to volume ratio 6:1,
The filler of total volume 3L is prepared, two kinds of mineral average grain diameters are respectively 2.3mm, 12mm.Filler is loaded into reactor, is connect
Simultaneously culture solution is added in kind anaerobic sludge, completes biofilm after continuing 2 days.It is passed through to reactor into water, adds cellulose in water inlet, make
In sewage carbon-nitrogen ratio run nitrogen of intaking during 70d and be averaged 17mg/l in 0.5 or so, hydraulic detention time 1h, phosphorus is average
0.9mg/l；Water outlet nitrogen be averaged 0.3mg/l, and water outlet phosphorus is averaged 0.03mg/l, is discharged sulfate radical and is averaged 72mg/l.
Embodiment 5
The present embodiment is using pyrite as sulphur source, using magnesite as inorganic carbon source；It is uniformly mixed according to volume ratio 1:1,
The filler of total volume 5L is prepared, three kinds of mineral average grain diameters are respectively 12.0mm, 3.5mm.Filler is loaded into reactor,
Simultaneously culture solution is added in inoculation anaerobic sludge, completes biofilm after continuing 3 days.It is passed through to reactor into water, adds fructose in water inlet, make
In sewage carbon-nitrogen ratio run nitrogen of intaking during 132d and be averaged 11mg/l in 12 or so, hydraulic detention time 0.7h, phosphorus is average
0.5mg/l；Water outlet nitrogen be averaged 0.27mg/l, and water outlet phosphorus is averaged 0.06mg/l, is discharged sulfate radical and is averaged 70mg/l.
Embodiment 6
The present embodiment is not added with inorganic carbon source using pyrite as sulphur source, uniformly mixes, prepares filling out for total volume 6L
Material, mineral average grain diameter are 1.0mm.Filler is loaded into reactor, anaerobic sludge is inoculated with and culture solution is added, continues 4 days
After complete biofilm.It is passed through to reactor into water, methanol is added in water inlet, so that carbon-nitrogen ratio is at 4 or so, hydraulic retention in sewage
Between 0.4h, nitrogen of intaking during operation 112d be averaged 8mg/l, and phosphorus is averaged 1.0mg/l, is discharged nitrogen and is averaged 0.17mg/l；It is discharged phosphorus
Average 0.09mg/l, water outlet sulfate radical are averaged 92mg/l.
Embodiment 7
The present embodiment is using pyrite as sulphur source, using dolomite as inorganic carbon source；It is uniformly mixed according to volume ratio 12:1
Pyrite, dolomite, prepare the filler of total volume 1.7L, and two kinds of mineral average grain diameters are respectively 4.0mm, 2.7mm.By filler
It is loaded into reactor, is inoculated with anaerobic sludge and culture solution is added, complete biofilm after continuing 4 days.It is passed through to reactor into water, into
Methanol is added in water, so that carbon-nitrogen ratio is in 1 or so, hydraulic detention time 0.9h in sewage, water inlet nitrogen is average during running 90d
21mg/l, phosphorus are averaged 1.2mg/l, and water outlet nitrogen is averaged 0.39mg/l；Water outlet phosphorus be averaged 0.08mg/l, and water outlet sulfate radical is averaged
101mg/l。
The present invention is described in detail above in conjunction with specific exemplary embodiment.It is understood, however, that can not take off
It is carry out various modifications in the case where from the scope of the present invention being defined by the following claims and modification.Detailed description and drawings
Should be to be considered only as it is illustrative and not restrictive, if there is any such modifications and variations, then they all will
It falls into the scope of the present invention described herein.In addition, Development Status and meaning that background technique is intended in order to illustrate this technology,
It is not intended to limit the present invention or the application and application field of the invention.
Claims (5)
1. a kind of method of the amphitroph filter tank synchronous denitrification dephosphorizing based on troilite, which is characterized in that by troilite
Or troilite and inorganic carbonate mineral are loaded into reactor after mixing, into reactor, inoculation contains autotrophic denitrification
The sludge of bacterium carries out biofilm, and treatment sewage is passed through into reactor, and the carbon-nitrogen ratio that sewage is controlled by adding organic carbon source is
0.5~12, reaction system is formed as amphitroph filter tank, and sewage carries out denitrogenation dephosphorizing in amphitroph filter tank.
2. a kind of method of amphitroph filter tank synchronous denitrification dephosphorizing based on troilite according to claim 1,
It is characterized by: the inorganic carbonate mineral are the carbonate mineral of calcium, magnesium or iron.
3. a kind of method of amphitroph filter tank synchronous denitrification dephosphorizing based on troilite according to claim 1,
It is characterized by: specific steps are as follows:
The preparation and filling of step (1), filler
Troilite or troilite are uniformly mixed with inorganic carbonate mineral, are loaded into reactor；
Step (2), inoculation membrane formation
To the sludge of the reactor inoculation sulfur-bearing autotrophic denitrification bacterium in step 1), Solution culture method is added and carries out inoculation membrane formation；
Step (3), sewage treatment
It is passed through treatment sewage to reactor, and adds organic carbon source to treatment sewage during water inlet, by having added
The carbon-nitrogen ratio that machine carbon source controls sewage is 0.5~12, and sewage flows through reactor in a manner of upper up-flow, and reaction system is made to be formed as mixed
Nutrients biological filter tank is closed, in 0.3~1.5h, sewage is mixing the hydraulic detention time of the biofilter of control coupling filler composition
Denitrogenation dephosphorizing is carried out in nutrients biological filter tank, completes the processing of sewage nitrogen and phosphorus.
4. a kind of method of amphitroph filter tank synchronous denitrification dephosphorizing based on troilite according to claim 1,
It is characterized by: the volume ratio of troilite and carbonate mineral are as follows: 20:0~20.
5. a kind of method of amphitroph filter tank synchronous denitrification dephosphorizing based on troilite according to claim 1,
It is characterized by: the average grain diameter of the troilite and carbonate mineral is in 1~12mm of range.
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| CN110407321A (en) * | 2019-08-14 | 2019-11-05 | 中国矿业大学 | Multilevel hierarchy packed-bed reactor city secondary effluent advanced nitrogen phosphorus removing method |
| CN110627226A (en) * | 2019-10-31 | 2019-12-31 | 湖南三友环保科技有限公司 | Inorganic composite powder carrier and application thereof in enhanced biological denitrification of town sewage treatment |
| CN110627195A (en) * | 2019-10-31 | 2019-12-31 | 湖南三友环保科技有限公司 | Method for manufacturing composite powder carrier for town sewage treatment |
| CN112047565A (en) * | 2020-08-11 | 2020-12-08 | 青岛清泽环保有限公司 | PHBV-pyrite substance mixotrophic denitrification biofilm reactor and application thereof |
| CN112830541A (en) * | 2020-12-16 | 2021-05-25 | 重庆大学 | Method for continuously removing phosphorus for long time by using multifunctional long-acting composite filler |
| CN113185055A (en) * | 2021-04-21 | 2021-07-30 | 天津城建大学 | Improvement A2O denitrification and dephosphorization reactor and sewage treatment method |
| CN113912184A (en) * | 2021-10-22 | 2022-01-11 | 广州市香港科大霍英东研究院 | Method for improving sewage treatment effect of low CN ratio |
| CN114956462A (en) * | 2022-05-31 | 2022-08-30 | 桂林理工大学 | Inductively coupled double-iron-based autotrophic denitrification filter tank treatment method |
| CN115231700A (en) * | 2022-07-27 | 2022-10-25 | 北京林业大学 | Method for synchronously removing nitrogen and phosphorus from low C/N sewage based on sulfur autotrophic denitrification and sulfate reduction coupling system |
| CN115745144A (en) * | 2022-11-24 | 2023-03-07 | 北京工业大学 | PD/A mixed culture synchronous nitrogen and phosphorus removal method and device |
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| CN110407321A (en) * | 2019-08-14 | 2019-11-05 | 中国矿业大学 | Multilevel hierarchy packed-bed reactor city secondary effluent advanced nitrogen phosphorus removing method |
| CN110627226A (en) * | 2019-10-31 | 2019-12-31 | 湖南三友环保科技有限公司 | Inorganic composite powder carrier and application thereof in enhanced biological denitrification of town sewage treatment |
| CN110627195A (en) * | 2019-10-31 | 2019-12-31 | 湖南三友环保科技有限公司 | Method for manufacturing composite powder carrier for town sewage treatment |
| CN112047565A (en) * | 2020-08-11 | 2020-12-08 | 青岛清泽环保有限公司 | PHBV-pyrite substance mixotrophic denitrification biofilm reactor and application thereof |
| CN112830541A (en) * | 2020-12-16 | 2021-05-25 | 重庆大学 | Method for continuously removing phosphorus for long time by using multifunctional long-acting composite filler |
| CN113185055A (en) * | 2021-04-21 | 2021-07-30 | 天津城建大学 | Improvement A2O denitrification and dephosphorization reactor and sewage treatment method |
| CN113912184A (en) * | 2021-10-22 | 2022-01-11 | 广州市香港科大霍英东研究院 | Method for improving sewage treatment effect of low CN ratio |
| CN114956462A (en) * | 2022-05-31 | 2022-08-30 | 桂林理工大学 | Inductively coupled double-iron-based autotrophic denitrification filter tank treatment method |
| CN115231700A (en) * | 2022-07-27 | 2022-10-25 | 北京林业大学 | Method for synchronously removing nitrogen and phosphorus from low C/N sewage based on sulfur autotrophic denitrification and sulfate reduction coupling system |
| CN115745144A (en) * | 2022-11-24 | 2023-03-07 | 北京工业大学 | PD/A mixed culture synchronous nitrogen and phosphorus removal method and device |
| CN115745144B (en) * | 2022-11-24 | 2024-05-24 | 北京工业大学 | PD/A mixed culture synchronous denitrification and dephosphorization method and device |
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