CN104445613B - Mineralized refuse packed bed and wastewater denitrification method - Google Patents
Mineralized refuse packed bed and wastewater denitrification method Download PDFInfo
- Publication number
- CN104445613B CN104445613B CN201410121990.4A CN201410121990A CN104445613B CN 104445613 B CN104445613 B CN 104445613B CN 201410121990 A CN201410121990 A CN 201410121990A CN 104445613 B CN104445613 B CN 104445613B
- Authority
- CN
- China
- Prior art keywords
- waste water
- packed bed
- waste
- mineralized
- denitrogenation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (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
In order to realize low-cost denitrification of nitrogen-containing wastewater and reasonably utilize the mineralized refuse, the invention provides a mineralized refuse packed bed and a method of removing the nitrogen in the nitrogen-containing wastewater based on the mineralized refuse packed bed. The blockage problem of the packed bed is solved by lowering BOD5 in inlet water, cooperation of partial nitrification and the anaerobic ammonia oxidation is realized by an additionally-arranged vent pipe, and the treatment efficiency is guaranteed by use of a thermal insulation layer, so that the mineralized refuse packed bed is a mineralized refuse packed bed which has low energy consumption, low cost and low carbon footprint. Besides, the wastewater denitrification method is a nitrogen-containing wastewater denitrification treatment method.
Description
Technical field
The present invention relates to a kind of mineralized waste packed bed, and based on the mineralized waste packed bed by the nitrogen in nitrogenous effluent
The method sloughed.
Background technology
Nitrogen-containing pollutant includes itrogenous organic substance, nitrate, nitrite, ammonia nitrogen, controls to discharge nitrogenous to natural water
Pollutant is the important means for controlling body eutrophication.Discharge of the Chinese Government to ammonia nitrogen has carried out strict limitation, is related to ammonia
The pollutant emission standard of nitrogen limit value has more than 40, and professional standard has more than 20, and nitric acid has been related in addition with some standards
The control of salt nitrogen and nitrite nitrogen, it is constantly improve with environmental requirement, it will to there are more standards to be related to nitrate nitrogen
And nitrite nitrogen.Chinese body eutrophication is serious, wherein again exceeded the most serious with ammonia nitrogen, polluted by nitrogen situation is very tight
It is high.
The existing method of denitrogenation of waste water has physical treatment method, chemical treatment method, bioremediation.
Physical treatment method includes that distillation, stripping, film absorb.Distillation is relatively costly, and it is higher than 5000mg/ to be adapted to ammonia nitrogen concentration
L waste water；Stripping belongs to the technology that country does not reencourage because of its secondary pollution problem；Film absorbs and is susceptible to seepage.
Chemical treatment method is chemical including the guanite precipitation method, break point chlorination method, ion-exchange, electrochemical method etc.
The precipitation method are not suitable for the waste water containing toxic component, and need regulation to strong basicity environment, when discharge or post processing often again
Neutrality is adjusted to, its acid and alkali consumption amount is big, limits its commercial Application；Break point chlorination method is usually used in the advanced treating of waste water or drinks
The treatment of water, it is too high for cost for wastewater treatment；Ion-exchange is due to the large usage quantity of ion-exchanger, and regeneration is frequent, then
Raw liquid causes secondary pollution, also limit its application；Electrochemical method energy consumption is big, high cost, and practical application is fewer.
Biological treatment includes nitrification/denitrification, synchronous nitration and denitrification, short-cut nitrification-denitrification nitrification, anaerobism ammonia oxygen
Change, SHARON-ANAMMOX.
Traditional denitrogenation of waste water is frequently used nitrification/denitrification, and nitration reaction often aoxidizes 1g ammonia nitrogens needs oxygen consumption 4.57g,
Consumption basicity 7.14g；Often reducing 1g nitrate nitrogens in denitrification need to consume 1.91 grams of methyl alcohol, and increase basicity is 3.57g, works as waste water
Middle carbon source needs the organic matters such as addition methyl alcohol, glucose as electron donor when not enough, so for low C/N waste water, by 1g's
Mineralized nitrogen is needed to consume 4.57 grams of oxygen for nitrogen, and the electron donor 1.94g that consumption methyl alcohol is calculated additionally is needed to waste water
Acid-base value is adjusted, and its adding of agent expense is huge, using nitrification-denitrification process, it is considered in the case of backflow, unit
Processing cost is estimated as 17~33 $/kgN.（Tsushima I,Ogasawara Y,Kindaichi T,et
al.Development of high-rate anaerobic ammonium oxidizing (anammox) biofilm
reactors[J].Water research,2007,41:1623 –1634）.
Synchronous nitration and denitrification is due to avoiding NO in nitrifying process2- and NO3- accumulation, and nitrification consumption basicity and anti-
Nitrification produces basicity to realize coupling, has significant advantage than complete nitrification-denitrification.But synchronous nitration-denitrification pair
The control of condition is very strict, mainly has application, domestic application ratio in Western European countries such as Holland, Denmark, Germany, Italy at present
It is less.
Short-cut nitrification and denitrification is only by NH4+ nitrite is oxidized to, the oxygen and basicity of needs are reduced, while also dropping
Organic matter required for low denitrification, so as to reduce cost.The accumulation of nitrite is the key of this technology, but at present
The industrial example for realizing nitrite stabilization accumulation is also fewer.
Nitration-anaerobic ammoxidation is that nitrate and ammonia nitrogen are in Anammox to nitrate by a part of ammonium oxidation
Nitrogen is generated in the presence of bacterium.It is found that the phenomenon of Anammox the eighties in 20th century, Holland has been carried out its industry should
With.The technical difficult points of the technology are that Anammox strain source is deficient, thalline value-added speed is slow, Anammox is thin
Bacterium is easy to run off.
, first by part ammonium oxidation into nitrite, anaerobic ammonium oxidizing bacteria is by nitrous acid for SHARON-ANAMMOX techniques
Salt is nitrogen with remaining mineralized nitrogen.It is nitrite that the technique is only needed to the ammonium oxidation of part, and oxygen and basicity disappear
Consumption is little, and the Anammox stage does not need carbon source, has good economy for low C/N waste water.Due to the technique control
Condition processed is strict and complicated, it is desirable to technical merit very high, so commercial Application is not still extensive at present.The core of the technique is
Biological propagation and holding, usually realize nitrous using perfectly mixed reactor in the accumulation of nitrite and anaerobic ammonia oxidation reactor
The accumulation of hydrochlorate, using UASB（Up-flow anaerobic sludge blanket）、AF（Anaerobic filter）Or both the reactor that combines realize
The propagation of anaerobic ammonium oxidizing bacteria and holding.Using these implementations, the removal of nitrogen is realized, in theory waste water at least half
Ammonia nitrogen need to be converted into nitrite nitrogen, and nitrous acid is larger to the inhibitory action of microorganism, is percolated using the PROCESS FOR TREATMENT picture
The ammonia nitrogen concentrations such as liquid, refinery(waste) water, waste water of livestock poultry waste water higher, due to the accumulation of nitrite, easily makes to nitrosation reaction
Into Product inhibiton；The Anammox stage is entered into, and causes substrate to suppress anaerobic ammonium oxidizing bacteria, so higher in concentration
Occasion, this is a pair contradictions for being difficult to reconcile.Additionally, the doubling time of anaerobic ammonium oxidizing bacteria is up to 11 days, so for
For anaerobic ammonia oxidation reactor, sludge retention time is almost that the longer the better, often realizes hydraulic retention using technological means
Time and the separation of sludge retention time, such as biomembrane, anaerobic membrane bioreactor, improve upflow type anaerobic reactor and consolidate
The means such as liquid separating power realize, achieve preferable effect.But, the speed of growth is limited by slowly, during the debugging of reactor
Between it is general all very long, there are many documents to describe more quick cultural method at present, but be applied to the fast culture of engineering
There is not been reported for method.
Since the nineties in last century, Tongji University Zhao is carried out using mineralized waste by just proposing in a creative way as filler
The new approaches of purification of waste water, under the support of the multiple funds such as National 863 plan, systematic research mineralized waste biological respinse
Bed treatment landfill percolate, city domestic sewage, waste water of livestock poultry, coking chemical waste water, phenol wastewater, dyeing waste water, coking chemical waste water
Etc. the technical staple of multiclass waste water.Tongji University is in Application No. 00127298.5 filed in 7 days November in 2000《One
Plant the processing method of diffusion water of garbage burying ground》A kind of processing method of diffusion water of garbage burying ground is disclosed, is opened as one kind
Invasive invention, the invention has inspired domestic many use mineralized wastes that the research of waste water is processed as filler, but as early stage
Achievement, also there are problems that reactor plugs, it is less efficient, be not suitable with.East China Normal University was in September 5 in 2011
Application No. 201110260863.9 filed in day《The biological denitrification method and device of middle mature landfill leachate》Disclosure
A kind of biological denitrification method of middle mature landfill leachate is disclosed in specification, in pretreatment stage by the ammonia of part in waste water
Nitrogen is disposably oxidized to nitrate nitrogen or nitrite nitrogen, afterwards again in anaerobic ammonia oxidation reactor by ammonia nitrogen and NOx- go together
Remove.Stale garbage is acted on the method the filler of anaerobic ammonia oxidation reactor first, and obtains certain treatment effect.But
Remain in following defect：Because ammonia nitrogen concentration is up to 2000mg/L in waste water, to enable the ammonia nitrogen in Anammox stage complete
Portion is reacted by Anammox and removed, then at least needed the ammonium oxidation of 1000 mg/L into NOX-, this will cause higher
Nitrite accumulation, causes pH to decline while consuming substantial amounts of basicity, and both collective effects will be made to Anammox reaction
Suppress into serious substrate；While the Anammox stage needs to produce substantial amounts of basicity again so that anaerobic ammonia oxidation reactor
The pH of bottom is higher, equally also influences the efficiency and stability of anaerobic ammonia oxidation reactor；BOD in waste water5Concentration is higher so that
Heterotrophic microorganism forms competition with autotrophic microbe in pretreatment mineralized waste bed, due to nitrobacteria, anaerobic ammonium oxidizing bacteria
All it is autotrophic bacterium, its growth is suppressed；Meanwhile, the breeding of a large amount of heterotrophic microorganisms causes that filler is blocked, it is necessary to irregular
Dredging, reduces operational efficiency and treatment effect；Further, since not using insulation and heating measures, it is necessary to higher in temperature
Run under environment, limit the application of the technology.
The content of the invention
In order to solve the above problems, the mineralized waste that nitrogenous effluent carries out denitrogenation processing can be filled out the invention provides a kind of
Material bed.
The mineralized waste packed bed includes supporting layer and the packing area on supporting layer, for mineralized waste is filled out in packing area
Material, sets the ventilation duct of horizontal direction in described filler area.
The horizontal ventilation pipe can be the ventilation duct of porous surface, or have multiple ventilation ducts for exporting.It is described
Horizontal ventilation pipe has multilayer, in vertical direction interruption arrangement.The ventilation duct number of plies in vertical direction is 1-5 layers, excellent
Elect layer 2-4, more preferably 3 layers as.The distance between two-layer ventilation duct be 0.5m-1.5m, preferably 0.7m-1.3m, more preferably
It is 0.9m-1.1m；The superiors' ventilation duct apart from mineralized waste filler upper surface 0.1m-0.5m, preferably 0.2m-0.4m, more
Preferably 0.3m.Operationally, the air transporting arrangement such as the external air compressor of ventilation duct, air blower, conveys in packed bed
Oxygen-containing gas, such as air, oxygen so that turn into aerobic environment near ventilation duct.Discharge pressure is normal pressure to 1500 handkerchief malleations, tool
Body numerical value changes with the distance between ventilation duct, and the numerical value of pressure should cause there is certain thickness between two-layer ventilation duct
Anaerobism or the environment close to anaerobism.Therefore, anaerobic zone replaces cloth in vertical direction with aerobic zone in mineralized waste packed bed
Put, its quantity sum is 2-10 layers.
In order to further improve invention, prior art problem is solved, the present invention provides a kind of based on foregoing invention, also
Mineralized waste packed bed, the outer wall of its packed bed is provided with heat-insulation layer.The heat-insulation layer be insulation material or can heating material, it is described
Heat-insulation layer maintains mineralized waste filler temperature at 20 DEG C -40 DEG C when mineralized waste packed bed works, preferably 30 DEG C -37 DEG C,
More preferably 33 DEG C -37 DEG C, most preferably 35 DEG C.
Any of the above-described mineralized waste packed bed, need to be tamed when beginning to use.
Based on any of the above-described mineralized waste packed bed, the present invention also provides the side that a kind of nitrogen by nitrogenous effluent is sloughed
Method.Particularly, it is adaptable to the waste water of total nitrogen concentration 100-5000mg/L, comprise the following steps：
Step one：Waste water is pre-processed, makes the BOD in waste water5Less than 200mg/L, temperature is 20-40 DEG C, pH value
It is 6.6-9；
Step 2：The waste water that will have been pre-processed from any of the above-described mineralized waste packed bed top sprinkle.
In the case of in need, when such as influent concentration is higher, can by step 2 process obtained by water be back to step
One, reprocessed.
In order to further improve invention, prior art problem is solved, of the invention based on foregoing invention, also offer
A kind of method that nitrogen by nitrogenous effluent is sloughed, i.e., before waste water sprinkle, add nutriment in waste water, can be with
Waste water sprinkle enters inside packed bed.The active ingredient of the nutriment is trace element, yeast extract and phosphorus containg substances, institute
It is one or more in Fe, K, Mg, Cu, Co, Ni, Mo, Mn to state trace element.Operationally, the external air compression of ventilation duct
The air transporting arrangements such as machine, air blower, to conveying oxygen-containing gas, such as air, oxygen in packed bed so that turn near ventilation duct
Aerobic environment.Discharge pressure be normal pressure to 1500 handkerchief malleations, concrete numerical value changes with the distance between ventilation duct, pressure
Numerical value should cause there is certain thickness anaerobism or the environment close to anaerobism between two-layer ventilation duct.In mineralized waste packed bed
During work, mineralized waste filler temperature is maintained at 20 DEG C -40 DEG C, it is preferably 30 DEG C -37 DEG C, more preferably 33 DEG C -37 DEG C, optimal
Elect 35 DEG C as.
In order to preferably implement foregoing invention, the mineralized waste filler in the mineralized waste packed bed is by mineralized waste
Sorting sieves material of the particle diameter less than 30mm for obtaining after removing glass, metal, plastics, poisonous and harmful substance.The mineralising rubbish
Rubbish is house refuse or the material with biomass as main component, filled in natural environment or piled up 5 years it is formed above
Soil shape material.
The present invention can also will contain NOxGas or waste gas imported into mineralized waste packing area, to promote mineralized waste
The generation of packing area Anammox reaction, and NO in removing exhaust gas is played simultaneouslyxPurpose.Contain CO2Waste gas or gas
The generation that mineralized waste packing area can also be imported into promote nitrification, nitrosation, Anammox to react.
The mineralized waste packed bed that the present invention is provided, can realize short distance nitration-anaerobic ammonia oxygen in same reactor
The collaboration of change, whole process only adds a small amount of soda acid to adjust initial pH value, without organic carbon source, and needed for the process
Aeration rate is considerably less, process is simple, is that a kind of low energy consumption, low cost, the mineralized waste of the nitrogenous effluent denitrogenation of low-carbon (LC) footprint are filled out
Material bed.
In waste water at the same time containing organic matter and ammonia nitrogen, heterotrophic microorganism and autotrophic microbe form competitive relation, and
Heterotrophic microorganism typically occupies competitive advantage.The present invention proposes the hypothesis of sludge bulking blocking and carries out from sludge yield
Checking.The present invention is by pre-processing the content of organics reduced in waste water, it is therefore prevented that the transition breeding of microorganism causes filler
Bed is blocked, while preventing the amount reproduction of heterotrophic microorganism and autotrophic microbe to compete so that in aged refuse reactor
Autotrophic microbe obtains preferably growth and living environment, and anaerobic ammonium oxidizing bacteria autotroph is occupied an leading position, by this
The mode of kind improves the efficiency of reaction bed nitration reaction and Anammox reaction.
The invention provides a kind of approach of mineralized waste resource, be conducive to recycling for refuse landfill, to city
City's sustainable development is significant.
Brief description of the drawings
Fig. 1 is the front view of mineralized waste packed bed in the present invention.
Fig. 2 is the side view of mineralized waste packed bed in the present invention.
Specific embodiment
In order to better illustrate the present invention, specific embodiment of the invention is introduced with reference to Figure of description.
In accompanying drawing, 1 is water-locator, and 2 is mineralized waste filler, and 3 is reaction bed bed wall, and 4 are responsible for for ventilation, and 5 is ventilation branch
Pipe, 6 is heat-insulation layer, and 7 is supporting layer, and 101 to dispense in the waste water above mineralized waste packed bed, and 102 are introduced into mineralising rubbish
The gas of rubbish packing area.
Embodiment 1.
Enter aqueous nature：Coking chemical waste water, ammonia-nitrogen content 1433~2134 mg/L, COD are 1577~2544 mg/L, BOD5For
574~763 mg/L, pH are 10.5~11.3.
Pretreatment：Using activated sludge process by BOD525-51 mg/L are reduced to, the pH for adjusting waste water is 7.8-8.9, is adopted
With 20-40 DEG C of dividing wall type heater, waste water 101 is obtained.
Mineralized waste packed bed：Mineralising rubbish filler 2 is removed after being sieved through 30mm for the landfill domestic waste of 8 years
Brown chesson shape material is obtained after bulky grain glass, battery remaining excess, metal, stone.Mineralized waste packed bed bed wall 3 is high
3.5m, inside sets 4 aerobic zones, 3 anaerobic zones, and anaerobic zone and aerobic zone are arranged alternately.The aerobic zone of packed bed bottom is by certainly
So ventilation realizes that remaining 3 formation of aerobic zone is realized by arranging the porous venting pipe that individual layer caliber is 25mm, ventilation supervisor
4 connection air blowers, import the air 102 of the malleation for keeping 1000 handkerchiefs or so, into branch vent 5.The ventilation duct of the superiors away from
From surface 0.3m, second layer ventilation duct 1m below the superiors' ventilation duct, third layer ventilation duct 1m below second layer ventilation duct.
Rubbish packed bed inner surface lays insulation material 6, maintains the temperature of mineralized waste filler at 30 ± 2 DEG C.The uniform spread of waste water 101
On the top of packed bed, aerobic zone and anaerobic zone are passed sequentially through under gravity, the water outlet of aged refuse reactor does not flow back.
First washed with clear water before starting, hydraulic load 12m/d, washed one day.According to every cubic metre of mineralized waste filler after the completion of washing
Add 5g yeast extracts, 3g FeCl2、1g KCl、3g MgSO4·7H2O、1g CuSO4·5H2O、1g CoCl2、1g NiCl2、
1g Na2MoO4·2H2O、1g MnCl2·4H2O, above-mentioned nutriment is configured to solution and uniformly dispenses in packed bed upper surface.This
Frequency of the nutrient solution according to each season once is added in mineralized waste packed bed.
The domestication of mineralized waste packed bed：Domestication adds 10% coking chemical waste water in running water when starting, keep waterpower to bear
Lotus 3m/d, runs one week, then improves the concentration of water inlet according to 20%, 20%, 20%, 30% gradient, increases water outlet after concentration
COD occurs that the short time rises, and can gradually reduce afterwards and tend towards stability, and stable effluent quality is that a stage domestication is successful
Mark, the time in one to two weeks of general experience.By the domestication of 57 days in the present embodiment, domestication terminates substantially, and water outlet ammonia nitrogen is low
In 15mg/L, COD is 223-407mg/L.
Treatment effect：When reaction bed tempertaure is less than 20 DEG C, whole reaction bed treatment effeciency is decreased obviously, and water outlet ammonia nitrogen is even
More than 100 mg/L；Reaction bed tempertaure can normally run at 20-40 DEG C, and water outlet ammonia control is within 100 mg/L.
At 35 ± 2 DEG C, preferably, when hydraulic surface loading is 1.5m/d, water outlet ammonia nitrogen contains outlet effect reaction bed tempertaure
Amount is less than 15mg/L, and most times are less than 10 mg/L, and COD is 178 ~ 341mg/L, and nitrate content is less than 30mg/L, sub-
Nitrate content is less than 10mg/L.When hydraulic surface loading is 3m/d, water outlet ammonia-nitrogen content is less than 15 mg/L, and COD is 223-
407 mg/L, nitrate content is less than 30mg/L, and content of nitrite is less than 10mg/L.
NO will be containedx（0.05~0.1%）And CO2（2~8%）Mixed gas packed bed is introduced by the ventilation duct 4 of aerobic layer,
Collect the gas of mineralized waste packed bed discharge, NO in the gas of collectionxLess than 5mg/m3, reached according to mass balance clearance
More than 99%；CO2Concentration is reduced to less than 1%, and more than 80% is reached according to mass balance removal.From the results of view, CO2It is thin by nitrification
Bacterium make use of as inorganic carbon source.
Embodiment 2.
Influent quality：The middle aged percolate from garbage filling field in 8 years ages is filled, COD is 1834 ~ 2433mg/L, and ammonia nitrogen is
2430 ~ 3071mg/L, BOD5It is 244 ~ 336mg/L, pH value is 7.4 ~ 8.5.
Pretreatment：By Fenton oxidation, BOD587 ~ 200 mg/L are reduced to, add soda ash to cause that the pH of waste water is 8.0-
8.8, it is 30 ± 2 DEG C by be directly filled with high-temperature steam to adjust temperature, obtain waste water 101.
Mineralized waste packed bed：Mineralising rubbish filler 2 is the landfill domestic waste of 10 years after 10mm sieve screenings
Remove the brown chesson shape material obtained after bulky grain glass, battery remaining excess, metal, stone.Mineralized waste packed bed
The 2m high of bed wall 3, inside sets 2 aerobic zones, 1 anaerobic zone, and anaerobic zone and aerobic zone are arranged alternately.The aerobic zone of packed bed bottom leads to
Gravity-flow ventilation realization is crossed, the formation of top aerobic zone is realized by arranging the porous venting pipe that individual layer caliber is 25mm, ventilation master
Pipe 4 connects air blower, the air 102 of the malleation for keeping 1000 handkerchiefs or so is imported, into branch vent 5.The ventilation duct of the superiors
Apart from surface 0.3m.Rubbish packed bed inner surface lays insulation material 6, maintains temperature at 30 ± 2 DEG C.The uniform spread of waste water 101
On the top of packed bed, aerobic zone and anaerobic zone are passed sequentially through under gravity, the effluent recycling of aged refuse reactor is arrived
Before pretreatment temperature regulating step, reflux ratio is 1.First washed with clear water before starting, hydraulic load 12m/d, washed one day.Wash
After the completion of washing 5g yeast extracts, 3g FeCl are added according to every cubic metre of mineralized waste filler2、1g KCl、3g MgSO4·7H2O、
1g CuSO4·5H2O、1g CoCl2、1g NiCl2、1g Na2MoO4·2H2O、1g MnCl2·4H2O, above-mentioned nutriment is matched somebody with somebody
It is made solution and uniformly dispenses in packed bed upper surface.Frequency of this nutrient solution according to each season once is added to mineralized waste and fills out
In material bed.
The domestication of mineralized waste packed bed：Domestication adds 10% percolate in running water when starting, keep hydraulic load
3m/d, runs one week, then improves the concentration of water inlet according to 20%, 20%, 20%, 20%, 10% gradient, increases water outlet after concentration
COD occurs that the short time rises, and can gradually reduce afterwards and tend towards stability, and stable effluent quality is that a stage domestication is successful
Mark.This project was tamed and terminated substantially by the domestication of 85 days, and water outlet ammonia nitrogen is less than 15mg/L, and COD is 155-405mg/L,
BOD5It is 15-33mg/L.
Treatment effect：When reflux ratio is 1, and mineralized waste packed bed hydraulic surface loading is 3m/d, water outlet ammonia-nitrogen content
Less than 15 mg/L, COD is 155-405mg/L, BOD5It is 15-33mg/L, nitrate content is less than 25mg/L, and nitrite contains
Amount is less than 15mg/L.
Embodiment 3.
Enter aqueous nature：Pig farm breeding wastewater, ammonia-nitrogen content 209-1100 mg/L, COD are 847~1544 mg/L, BOD5
It is 363~758 mg/L, pH is 7.1~7.6.
Pretreatment：Using activated sludge process, water outlet BOD5It is 45-96 mg/L, pH is 6.9-7.3, and ammonia-nitrogen content is
247-683 mg/L.
Mineralized waste bed：Mineralising rubbish filler 2 is removed for the landfill domestic waste of 10 years after 10mm sieve screenings
The brown chesson shape material obtained after bulky grain glass, battery remaining excess, metal, stone.Mineralized waste packed bed bed wall 3
2m high, inside sets 2 aerobic zones, 1 anaerobic zone, and anaerobic zone and aerobic zone are arranged alternately.The aerobic zone of packed bed bottom is by certainly
So ventilation realizes that the formation of top aerobic zone realizes that ventilation supervisor 4 connects by arranging the porous venting pipe that individual layer caliber is 25mm
Air blower is connect, the air 102 of the malleation for keeping 1000 handkerchiefs or so is imported, into branch vent 5.The ventilation duct of the superiors is apart from table
Face 0.3m.Rubbish packed bed inner surface lays insulation material 6, maintains temperature at 30 ± 2 DEG C.The uniform spread of waste water 101 is in filler
The top of bed, passes sequentially through aerobic zone and anaerobic zone under gravity, and the effluent recycling of aged refuse reactor is to pre-processing
Before temperature adjustment step, reflux ratio is 1.First washed with clear water before starting, hydraulic load 12m/d, washed one day.Washing is completed
Afterwards 5g yeast extracts, 3g FeCl are added according to every cubic metre of mineralized waste filler2、1g KCl、3g MgSO4·7H2O、1g
CuSO4·5H2O、1g CoCl2、1g NiCl2、1g Na2MoO4·2H2O、1g MnCl2·4H2O, above-mentioned nutriment is configured to
Solution uniformly dispenses in packed bed upper surface.Frequency of this nutrient solution according to each season once is added to mineralized waste packed bed
In.
The domestication of mineralized waste packed bed：Domestication adds 10% percolate in running water when starting, keep hydraulic load
3m/d, runs one week, then improves the concentration of water inlet according to 20%, 20%, 20%, 20%, 10% gradient, increases water outlet after concentration
COD occurs that the short time rises, and can gradually reduce afterwards and tend towards stability, and stable effluent quality is that a stage domestication is successful
Mark.This project was tamed and terminated substantially by the domestication of 85 days, and water outlet ammonia nitrogen is less than 15mg/L, and COD is 155-405mg/L,
BOD5It is 15-33mg/L.
Treatment effect：Water outlet ammonia nitrogen is less than 30mg/L, and COD is less than 200mg/L.
The present invention includes but is not limited to the content of above-described embodiment, and those skilled in the art do usual change to the present invention
It is dynamic, fall within protection scope of the present invention.
Claims (15)
1. a kind of denitrogenation of waste water method based on mineralized waste packed bed, described mineralized waste packed bed is provided with and is filled with mineralising rubbish
The packing area of rubbish filler, sets the ventilation duct of horizontal direction, the ventilation duct porous surface, the ventilation duct in described filler area
External air transporting arrangement, to conveying gas in packed bed；
Wherein：The horizontal ventilation pipe has multilayer, in vertical direction interruption arrangement, the discharge pressure of the gas for normal pressure extremely
1500 handkerchief malleations, make to turn into aerobic environment near ventilation duct, there is anaerobism or the environment close to anaerobism, ore deposit between two-layer ventilation duct
Anaerobic zone is alternately arranged in vertical direction with aerobic zone in changing rubbish packed bed, and its quantity sum is 2-10 layers；Packed bed
Outer wall is provided with heat-insulation layer；
Process step includes waste water is uniformly dispensed in mineralized waste packed bed top, it is characterised in that：The waste water is BOD5It is low
In 200mg/L, temperature is 20-40 DEG C, and pH value is the waste water of 6.6-9.
2. denitrogenation of waste water method as claimed in claim 1, it is characterised in that：The waste water total nitrogen concentration for being used is 100-
5000mg/L。
3. denitrogenation of waste water method as claimed in claim 1 or 2, it is characterised in that：After the treatment through mineralized waste packed bed
Return of waste water.
4. denitrogenation of waste water method as claimed in claim 3, it is characterised in that：Nutriment is added in waste water to be processed is needed,
As waste water sprinkle enters inside packed bed.
5. denitrogenation of waste water method as claimed in claim 4, it is characterised in that：The active ingredient of the nutriment is micro unit
Element, yeast extract or phosphorus containg substances.
6. mineralized waste packed bed as claimed in claim 5, it is characterised in that：It is described trace element for Fe, K, Mg, Cu, Co,
One or more in Ni, Mo, Mn.
7. denitrogenation of waste water method as claimed in claim 1, it is characterised in that：The distance between ventilation duct described in two-layer is 0.5m-
1.5m,；Upper surface 0.1m-0.5m of the superiors' ventilation duct apart from mineralized waste filler.
8. denitrogenation of waste water method as claimed in claim 7, it is characterised in that：The distance between ventilation duct described in two-layer is 0.7m-
1.3m；Upper surface 0.2m-0.4m of the superiors' ventilation duct apart from mineralized waste filler.
9. the denitrogenation of waste water method as described in claim 1 is required, it is characterised in that：The gas is oxygen-containing gas.
10. denitrogenation of waste water method as claimed in claim 9, it is characterised in that：Also include containing NOx, CO in the oxygen-containing gas2
In one or more of waste gas or gas.
11. such as claim 1 or described denitrogenation of waste water method, it is characterised in that：The mineralized waste filler is by mineralized waste
Sorting sieves material of the particle diameter less than 30mm for obtaining after removing glass, metal, plastics, poisonous and harmful substance.
12. denitrogenation of waste water methods as claimed in claim 11, it is characterised in that：The mineralized waste is house refuse or with biology
Matter is the material of main component, and 5 years soil shape materials formed above are filled or piled up in natural environment.
13. denitrogenation of waste water methods as claimed in claim 1, it is characterised in that：The heat-insulation layer is insulation material or can heat material
Material.
14. denitrogenation of waste water methods as claimed in claim 13, it is characterised in that：The mineralized waste packed bed is in the course of work
In, mineralized waste filler temperature is maintained at 30 DEG C -39 DEG C.
15. denitrogenation of waste water methods as claimed in claim 14, it is characterised in that：The mineralized waste packed bed is in the course of work
In, mineralized waste filler temperature is maintained at 33 DEG C -37 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121990.4A CN104445613B (en) | 2014-03-29 | 2014-03-29 | Mineralized refuse packed bed and wastewater denitrification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121990.4A CN104445613B (en) | 2014-03-29 | 2014-03-29 | Mineralized refuse packed bed and wastewater denitrification method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104445613A CN104445613A (en) | 2015-03-25 |
| CN104445613B true CN104445613B (en) | 2017-05-24 |
Family
ID=52892472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410121990.4A Active CN104445613B (en) | 2014-03-29 | 2014-03-29 | Mineralized refuse packed bed and wastewater denitrification method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104445613B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007002A (en) * | 2016-07-08 | 2016-10-12 | 平潭盖亚环保科技有限公司 | Method for processing breeding wastewater through multi-biological-phase zoogloea packing |
| CN107098473B (en) * | 2017-06-30 | 2023-03-14 | 中南大学 | High-efficient microbial community integration denitrification device based on mineralized filler |
| CN110452846B (en) * | 2019-08-16 | 2022-07-12 | 鹭滨环保科技（上海）股份有限公司 | Paracoccus denitrificans and biological denitrification method by combining paracoccus denitrificans with mineralization bed |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120131C (en) * | 2000-11-07 | 2003-09-03 | 同济大学 | Purifying treatment method for diffusion water of garbage burying ground |
| CN1792895A (en) * | 2005-11-08 | 2006-06-28 | 重庆工学院 | Tech. for biochemical treating sulphur-containing chark waste water of high concentrating high ammonia nitrogen |
| CN101249988B (en) * | 2008-03-27 | 2011-08-10 | 清华大学 | Method for processing landfill leachate and special device thereof |
| CN101618922A (en) * | 2009-08-06 | 2010-01-06 | 上海交通大学 | Method for processing landfill percolate |
| CN103466796B (en) * | 2013-09-27 | 2015-01-21 | 桂林理工大学 | Method for carrying out synchronous nitrification treatment and denitrification treatment on percolate by using mineralized refuse reaction bed |
-
2014
- 2014-03-29 CN CN201410121990.4A patent/CN104445613B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104445613A (en) | 2015-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102149645B (en) | Sludge treatment method and apparatus thereof and application to wastewater bio-treatment | |
| CN102718314B (en) | Method for quick starting of anaerobic ammonium oxidation technology at room temperature in low matrix | |
| CN104761097B (en) | It is a kind of suitable for high concentration, the processing method of organic wastewater with difficult degradation thereby total nitrogen | |
| CN107487840B (en) | Biological filter material for treating nitrate nitrogen in water | |
| Zhang et al. | The ammonium nitrogen oxidation process in horizontal subsurface flow constructed wetlands | |
| CN112142208B (en) | Nitrogen and phosphorus removal active biological carrier and application thereof | |
| Lu et al. | Assessment of the treatment of domestic sewage by a vertical-flow artificial wetland at different operating water levels | |
| CN104724889B (en) | A kind of sewage disposal system reducing greenhouse gas emission and method | |
| CN104150716A (en) | Biology processing apparatus capable of processing sewage at low-temperature with low carbon-nitrogen-ratio in cold region and method for processing sewage at low-temperature with low carbon-nitrogen-ratio in cold region | |
| CN101817615A (en) | Anaerobic-sequencing batch biofilm reactor-artificial wetland method for treating piggery wastewater | |
| Li et al. | Ex situ simultaneous nitrification-denitrification and in situ denitrification process for the treatment of landfill leachates | |
| CN108862574A (en) | Denitrifying artificial wet land system and its sewage denitrification method are cooperateed with based on reduction-state Fe autotrophy/sawdust heterotrophism | |
| CN101831392A (en) | Autotrophic and allotrophic symbiosis ammonia oxidation bacterial agent as well as culture method and application thereof | |
| CN103183455A (en) | Device and method for biologically denitrifying wastewater with high salinity | |
| CN103373758A (en) | Denitrifying method for ammonia-containing waste water discharged in acrylic production process | |
| CN112939335A (en) | Deep denitrification system and method based on heterotrophic and autotrophic combined treatment | |
| CN102241459A (en) | Method for reinforcing adsorption-biodegradation (AB) denitrification technology by use of heterotrophic nitrification-aerobic denitrification bacteria | |
| CN102776140B (en) | Cold-tolerant pseudomonas strain Den-05, and screening method and application thereof | |
| CN104445613B (en) | Mineralized refuse packed bed and wastewater denitrification method | |
| CN104591392A (en) | Slow-released carbon source biochemical-denitrifying treatment device for swine wastewater with high ammonia nitrogen and low carbon nitrogen ratio as well as method for treating swine wastewater | |
| CN104496017B (en) | A kind of method utilizing anaerobic filter to start Anammox fast | |
| Chang et al. | Greenhouse wastewater treatment by baffled subsurface-flow constructed wetlands supplemented with flower straws as carbon source in different modes | |
| CN107098473A (en) | A kind of high-effective microorganism cenobium integration denitrification device based on mineralising filler | |
| CN203653325U (en) | Device for realizing partial nitrification by synergistic inhibition of activity of nitrifying bacteria by free ammonia and free nitrous acid | |
| CN103373768B (en) | Method for reducing biological slime in circulating water system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160125 Address after: 411100 Xiangtan University, Hunan, Lake District, teachers apartment Applicant after: Xiao Can Address before: 411228 Triumph International Plaza, Fenghuang Road, Xiangtan County, Hunan, Xiangtan Applicant before: HUNAN BIYUAN ENVIRONMENTAL ENGIENERING CONSTRUCTION CO., LTD. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170426 Address after: 410000 Hunan province high tech Development Zone Changsha Lulong Road No. 199 A Lugu business center building 307 room card No. -1016 Applicant after: Changsha Environmental Protection Technology Co., Ltd. Address before: 411100 Xiangtan University, Hunan, Lake District, teachers apartment Applicant before: Xiao Can |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 410205 Hunan province high tech Development Zone Changsha Lulong Road No. 199 A Lugu business center building 307 room card No. -1016 Patentee after: Hunan billion environmental protection technology Co., Ltd. Address before: 410000 Hunan province high tech Development Zone Changsha Lulong Road No. 199 A Lugu business center building 307 room card No. -1016 Patentee before: Changsha Environmental Protection Technology Co., Ltd. |