CN104129847A - Method for one-step denitrification by utilizing wood and decayed wood for enrichment of denitrification environment microbial communities - Google Patents
Method for one-step denitrification by utilizing wood and decayed wood for enrichment of denitrification environment microbial communities Download PDFInfo
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- CN104129847A CN104129847A CN201410248823.6A CN201410248823A CN104129847A CN 104129847 A CN104129847 A CN 104129847A CN 201410248823 A CN201410248823 A CN 201410248823A CN 104129847 A CN104129847 A CN 104129847A
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Abstract
The invention discloses a method for one-step denitrification by utilizing wood and decayed wood for enrichment of denitrification environment microbial communities. The method includes: S1, soaking the decayed wood by a hydrochloric acid solution with a concentration of 9-10% for 20-30h continuously, then getting the decayed wood out and washing it clean; S3, soaking the decayed wood in a basic inorganic salt solution for 28-32d; and S5, placing the decayed wood in a denitrification pool in an anaerobic ammonia oxidation environment to perform bacteria culture, and keeping the temperature inside the pool at 20-30DEG C, introducing sewage into the pool, letting microbial communities grow on the decayed wood gradually, and making the Delta-proteobacteria composition proportion reaches over 50%, thereby realizing one-step denitrification. The decayed wood is employed to provide a parasitic environment for anaerobic bacteria, and increases the survival property and reproduction speed. The denitrification process has no need for chemical or organic matters, and aeration. The dominant environment microbial communities for denitrification are formed on the surface of the carrier, bacteria are cultured to swallow nitrogen-containing substances in flowing sewage so as to reach decontamination, thus saving raw materials, manpower and material resources, and reducing the cost.
Description
Technical field
The invention belongs to water-treatment technology field, relate to and take natural organic filler wood and be that main body cultivates the special flora that the starting material in source cultivate under Anammox environment and reach the method for removing total nitrogen in sewage, particularly a kind of method of utilizing wood, decayed timber to carry out a step denitrogenation.
Background technology
In modern industry and sanitary sewage, there are a large amount of nitrogen-containing pollutants, easily cause body eutrophication, serious harm environment.At present, the most frequently used denitride technology is nitration denitrification.The aeration rate that nitration denitrification denitrogenation Technology Need is higher is changed the reaction of nitrate to meet ammonia oxygen, and when organic content is lower, need to add extra organic carbon source to guarantee denitrification efficiency.Therefore, denitrification process running cost is higher, consumes energy huge.
The nineties in last century, the anaerobic ammonia oxidation process of novel high-efficiency and energy-saving arose at the historic moment along with the discovery of anaerobic ammonia oxidation microbiological.Anaerobic ammonia oxidation process is the denitrification process of novel high-efficiency and energy-saving, and its core is anaerobic ammonia oxidation microbiological.Compare with above-mentioned nitration denitrification technology denitrogenation, anaerobic ammonia oxidation process denitrogenation has the following advantages: (1) anaerobic ammonia oxidation microbiological is autotrophic microorganism, and reaction process does not need to add organism; (2) anaerobic ammonium oxidation process is not wanted aeration, greatly saves labor force and consumes; (3) anaerobic ammonia oxidation process can be processed high ammonia nitrogen class waste water, and unit load is higher, reduces the volume of reactor; (4) excess sludge that technique produces is less, the expense that can save a large amount of lignin-sludges.Yet anaerobic ammonia oxidation microbiological only just has activity under High Concentration Situation, and anaerobic ammonia oxidation microbiological poor growth, more difficult cultivation, activity is easily suppressed.Therefore,, in order to keep the activity of anaerobic ammonia oxidation microbiological, need very high cost.
Summary of the invention
In order to solve the problem of prior art, the embodiment of the present invention provides a kind of method of utilizing wood, decayed timber enrichment denitrogenation environmental microorganism flora to carry out a step denitrogenation that cost is low.Described technical scheme is as follows:
On the one hand, a kind of method of utilizing natural organic filler wood, decayed timber enrichment denitrogenation environmental microorganism flora to carry out a step denitrogenation is provided, it comprises following several step: step S1, by decayed timber concentration, be that 9-10% hydrochloric acid soln continued to soak after 20-30 hour, decayed timber is pulled out, and rinsed well; Step S3, is placed into decayed timber in basic inorganic salt solution and soaks 28-32 days; Step S5, is placed on decayed timber in the denitrification tank under Anammox environment and carries out mushroom cultivation, keeps temperature 20-30 ° of C in denitrification tank, and sewage is drained in denitrification tank.The ambient growth that can utilize carrier to provide due to described environmental microorganism flora, and absorb nitrogenous source from low nitrogenous water surrounding, required as spontaneous growing nutrient, make it progressively at described carrier surface, form dominant microflora, and in Δ-Proteobacteria, the ratio of the combination of Betaproteobacteria, Gammaproteobacteria, Deltaproteobacteria reaches 50% when above, can realize the removal of total nitrogen.Tradition nitration denitrification bacterium cannot survive in this environment, in competitive disadvantages.Induction and enrichment through lasting, form denitrogenation environmental microorganism dominant microflora gradually on described carrier.The described carrier the longest 20-25 that reaches in work-ing life.
Further, in described step S1, it is that the sodium hydroxide solution of 1-2% soaks 20-30 hour that the decayed timber after rinsing well is put into massfraction again, afterwards, pick up decayed timber and again water rinse.It is characterized in that: take natural organic filler decayed timber as carrier, slightly becomes thoroughly decomposed in its surface, and inner hardness is better, stackable combination, and environment water temperature can exert an influence to bacterial classification enrichment speed, but be far smaller than conventional denitrification process.Environment water temperature is 10 ° of C ~ 30 during ° C, and enrichment speed can be accelerated; When water temperature is greater than 1 ° of C lower than 5 ° of C, enrichment speed can be affected, and keeps water temperature at 10 ° of C ~ 30 ° C, can complete the enrichment of described carrier to denitrogenation environmental microorganism flora at 45 ~ 60 days, and after this, the water temperature of day-to-day operation is minimum adapts to 1 ° of C.
Further, the decayed timber after rinsing with immersion water in sodium hydroxide solution is put into physiological saline and soak 20-30 hour.
Further, in described step S3, described inorganic salt solution comprises following material: the KHCO of 0.40-0.6 gL-1
3, the MgSO of 0.30-0.35 gL-1
47H
2o, the KH of 0.02-0.03 gL-1
2pO
4, the CaCl of 0.1-0.15 gL-1
2, the NaNO of 0.3-0.4 gL-1
2, (the NH of 0.4-0.5 gL-1
4)
2sO
4.
Further, described step S5 comprises: S51, is placed in decayed timber in described denitrification tank by the rule of setting; S52, is full of described denitrification tank by sewage, and makes sewage natural flow in described denitrification tank, continues to keep 5-8 week to carry out mushroom cultivation; By the nitric wastewater carrier of flowing through, can adopt the mode that refluxes or do not reflux to cultivate, lure that denitrogenation environmental microorganism flora absorbs nitrogenous source from nitrogenous former water into, constantly enrichment; S53, in described denitrification tank, start to occur anaerobic ammonia oxidizing bacteria, and the total quantity ratio of δ-mycetozoan, γ-mycetozoan, β-mycetozoan Betaproteobacteria, Gammaproteobacteria, Deltaproteobacteria reaches 50% when above, continue sewage discharge to a step denitrogenation in described denitrification tank.
Further, in described step S51, many described decayed timbers are arranged into being emitted in described denitrification tank in layer, and are provided with fixedly filter between every adjacent two layers decayed timber.
Further, selected wood is cultivated the starting material in source as main body, and before described step S1, described wood is become thoroughly decomposed for described decayed timber.For the carrier of the induction of denitrogenation environmental microorganism flora and enrichment, can adopt the training method of one-level or secondary bed of packings.
Further, described in using new enrichment during denitrification microorganism flora carrier, can be by mixing with the carrier that carried out described bacterial classification enrichment, shorten the enrichment time of the above denitrogenation environmental microorganism flora of novel vector, and described carrier wood comprises coconut husk, shell, wood powder, trees or dry branches and fallen leaves etc.
Further, described wood becomes thoroughly decomposed for described decayed timber comprises the steps: S11, and described wood water is fully soaked, and makes described wood water content reach 40%-50%, in described water, can add urea; S15, piles the described wood interfolded after soaking with wood, when the temperature of the center of the described wood heap of monitoring rises to 55 ° of C-65 ° C, described wood heap upset, and turning, and add white-rot fungus; After described white-rot fungus and described wood are fully mixed, again build wood heap, and continue to stack 14-16 days; S17, upsets described wood heap again, turning, and rebuild wood heap, and lasting stacking after 14-16 days become thoroughly decomposed.
Further, between described S11 and described S15, the described wood interfolded after soaking is piled to form wood, when the temperature of the center of described wood heap rises to 55 ° of C-65 ° C, described wood heap is upset, turning, and interfolded is rebuild wood heap at least one times again.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
The method of utilizing wood, decayed timber to carry out a step denitrogenation of the present invention utilizes the mushroom that decayed timber is anaerobism to build natural parasitic environment, improved one-tenth activity and the reproduction speed of mushroom, particularly can amount reproduction δ-mycetozoan, γ-mycetozoan, β-mycetozoan.And in denitrification process, without adding any chemistry or organic substance, directly utilize in sewage the mushroom scrubbing of making a false countercharge, saved raw material consumption; And in order to build the anaerobism living environment of mushroom, in denitrification process, without aeration, saved manpower and materials, thereby reduced cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic flow sheet that utilizes wood, decayed timber to carry out the method for a step denitrogenation of the present invention.
Fig. 2 is the schematic flow sheet that in Fig. 1, wood becomes thoroughly decomposed.
Fig. 3 is the schematic flow sheet of denitrogenation in Fig. 1.
Fig. 4 be a step denitrogenation in Fig. 1 new mechanism, method and with the contrast of traditional method.
Fig. 5 is the carrier of the meticulous denitrogenation environmental microorganism of enrichment flora in Fig. 1 and the artwork of method.
Fig. 6 be in Fig. 1 traditional denitrogenation (total nitrogen) technique and this patent in the comparison of denitrogenation (total nitrogen) index.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Please refer to Fig. 1, the embodiment of the present invention provides a kind of method of utilizing wood, decayed timber to carry out a step denitrogenation, for sewage disposal.This method of utilizing wood to carry out a step denitrogenation comprises the steps:
Step S1, is that 9-10% hydrochloric acid soln continues to soak 20-30 hour by decayed timber concentration, makes hydrochloric acid soln that decayed timber corrosion is formed to a plurality of fine apertures of being convenient to bacterial growth; Then, pull decayed timber out, and water is rinsed hydrochloric acid soln remaining on decayed timber well.
For fear of being attached with remaining hydrochloric acid soln on decayed timber, can damage bacterium, the sodium hydroxide solution that is 1-2% with massfraction by the decayed timber after rinsing soaks 20-30 hour, with in decayed timber on the hydrochloric acid soln or other acidic substance that adhere to.After having soaked with sodium hydroxide solution, pick up decayed timber water flushing again, further to remove the impurity on decayed timber.Afterwards, decayed timber being put into physiological saline soaks after 20-30 hour stand-by.
It should be noted that, in other embodiments, also can as main body, cultivate with wood the starting material in source.When cultivating the starting material in source with wood as main body, before carrying out step S1, need first wood is become thoroughly decomposed for decayed timber, incorporated by reference to reference to Fig. 2, detailed process is:
First, the first step S11, fully soaks wood water, makes wood water content reach 40%-50%, and can add urea in above-mentioned water; It should be noted that, when wood select be trees time, in order to make the abundant humidity of trees and resistant water slug, the length of selecting each trees is 1m-1.2m, diameter is 12cm-20cm.
Then, second step S13, the wood interfolded after soaking is piled to form a plurality of wood, and in order to guarantee the effect of becoming thoroughly decomposed of every wood, each wood is provided with a plurality of holes.The central position of each wood heap is provided with temperature sensor or temperature monitoring meter, for the temperature of sensing wood heap center.Temperature when the center that wood is piled rises to 55 ° of C-65 ° C; Preferably, when the temperature of the center that wood is piled rises to 60 ° of C, corresponding wood heap is upset, turning, and interfolded is rebuild wood heap again.This process comprises turning at least one times and rebuilds wood heap.It should be noted that, as required, the turning in second step S13 and reconstruction wood heap can be repeatedly; And be the wood that easily becomes thoroughly decomposed while cultivating the starting material in source as main body when what use, can omit second step S13 and directly build wood heap, then directly carry out following the 3rd step S15.
The 3rd step S15, after second step S13 completes, the temperature when the center that monitoring wood is piled rises to 55 ° of C-65 ° C; Preferably, when the temperature of the center that wood is piled rises to 60 ° of C, again wood heap is upset, turning, and add white-rot fungus; After white-rot fungus and wood are fully mixed, again build wood heap, and continue to stack 14-16 days, preferably, continue to stack 15 days.
The 4th step S17, when continuing to have stacked after first 14-16 days, upsets wood heap again, turning, and rebuild wood heap, and continue to stack 14-16 days, preferably, continue to stack 15 days; Now, the wood formation decayed timber that become thoroughly decomposed.
It should be noted that, in other embodiments, the starting material of cultivating source as main body also comprise coconut husk, shell, wood powder, trees or dry branches and fallen leaves etc.
Step S3, is placed into decayed timber in the inorganic salt solution on Anammox basis and soaks 28-32 days; Wherein, inorganic salt solution comprises following material: the KHCO of 0.40-0.6 gL-1
3, the MgSO of 0.30-0.35 gL-1
47H
2o, the KH of 0.02-0.03 gL-1
2pO
4, the CaCl of 0.1-0.15 gL-1
2, the NaNO of 0.3-0.4 gL-1
2, (the NH of 0.4-0.5 gL-1
4)
2sO
4.As preferred mode: decayed timber need soak 30 days in inorganic salt solution.
Step S5: the decayed timber of processing through above-mentioned steps S1, S3 is placed in the denitrification tank under Anammox environment, and treat to form on decayed timber microflora, and until the ratio of Δ-Proteobacteria, reach 50% and (refer to δ-mycetozoan, γ-mycetozoan, β-mycetozoan in Δ-Proteobacteria when above
betaproteobacteria, Gammaproteobacteria, Deltaproteobacteriatotal quantity ratio reach 50% when above), sewage discharge, to denitrification tank, can be realized to the removal of total nitrogen, be a step denitrogenation.Particularly, step S5 comprises the steps:
The first step S51, is placed in decayed timber in denitrification tank according to the rule of setting.Many root-rot rotten wood is arranged into being emitted in denitrification tank in layer, and is provided with filter between every adjacent two layers decayed timber, decayed timber is fixed by filter, prevents that decayed timber from floating in denitrification tank.As preferably: place back-purge system below putting at decayed timber, avoid stopping up simultaneously to the better envrionment conditions of denitrogenation flora, in the body of pond, stripping tube is set, the mud in the body of periodic cleaning pond.
Second step S52, is full of denitrification tank by sewage and carries out mushroom cultivation, and continues to cultivate 5-8 week, is preferably 6 weeks; In this process, keep sewage natural flow in denitrification tank, and to keep water temperature 20-25 ° of C, domestication water inlet total nitrogen concentration in denitrification tank be 8-10mg/L, BOD
5not higher than 15mg/L.
The 3rd step S53, in described denitrification tank, start to occur anaerobic ammonia oxidizing bacteria, after enrichment culture, level vector Deltaproteobacteria accounts for 17% left and right of total bacterial classification, two grade carrier Deltaproteobacteria account for 36% left and right of total bacterial classification, and δ-mycetozoan, γ-mycetozoan, the total quantity ratio of β-mycetozoan reaches 50% when above, continue sewage discharge to described denitrification tank, by the mushroom in denitrification tank, engulf the itrogenous organic substance in sewage, thereby except the nitrogen pollutant in decontaminated water, nitrogen removal rate reaches more than 85%, reach the object of purifying waste water.
Particularly, while starting to occur Anammox flora in described denitrification tank, particularly the quantitative proportion of δ-mycetozoan, γ-mycetozoan, β-mycetozoan reaches 50% when above, continue sewage discharge to described denitrification tank, by the mushroom in denitrification tank, engulf the itrogenous organic substance in sewage, thereby except the nitrogen pollutant in decontaminated water, reach the object of purifying waste water, denitrification process is convenient, settles at one go and effective (with reference to Fig. 5).In this process, mushroom is attached in the fine aperture of decayed timber particularly total nitrogen of organism by constantly ingesting in sewage, growth and breeding, complete after its life cycle, part bacterium corpse is along with water body flow flows away in fine aperture, or extruded in fine aperture by fresh and alive bacterium, therefore with decayed timber, dispose of sewage and will effectively solve blockage problem.
Incorporated by reference to reference to Fig. 4, above-mentioned the 3rd step S53 denitrogenates in process, with NH
4+-N is electron donor, NO
2--N is that electron acceptor(EA), azanol and hydrazine are the biological respinse that key intermediate species and nitrogen are end product.What in Fig. 4, solid line partly represented is the new mechanism of denitrogenating in above-mentioned the 3rd step S53, and its total reaction formula is: NH
4++1.32NO
2-+0.066 HCO
3-+0.13H+ → 1.02N
2+ 0.26 NO
3-+0.066 CH
2o
0.5n
0.15+ 2.03H
2o.
What the dotted portion in Fig. 4 and long and short dash line part represented respectively is traditional nitration reaction and anti-nitration reaction.Dotted portion by Fig. 4 can be found out: in traditional nitration reaction process, need to add extra oxygen by the mode of aeration, need a large amount of labour's material resources to maintain aeration; And in traditional anti-nitration reaction process, need in denitrification tank, additionally add carbon source, increase energy consumption.Please refer to table one, can be clear that the present invention utilizes wood, decayed timber to carry out method and the contrast in energy expenditure, chemical cost and Carbon emission of traditional nitrification and denitrification method of a step denitrogenation.
Table one: the correlation data of energy expenditure, chemical cost and Carbon emission
| Energy expenditure | Chemical cost | Carbon emission | |
| Nitrification and denitrification method | 1.3 kWh/kg | 2.3 kg/kg | 3.5 ton/ton |
| The denitrogenation method that the present invention discloses | 0.1 kWh/kg | 0 kg/kg | 0.4 ton/ton |
Above-mentioned table is known in conjunction with Fig. 3 in the lump: the method energy consumption of utilizing wood, decayed timber to carry out a step denitrogenation of the present invention is little; Do not add chemical substance, and the quantity discharged of carbonic acid gas is little, energy-conserving and environment-protective.
Fig. 6 explanation
Tradition denitrogenation (total nitrogen) technique and this patent technique are in the comparison of denitrogenation (total nitrogen) effect:
| Nitrogen removal rate | |
| Traditional technology does not add carbon source | 40-60% |
| Traditional technology adds carbon source | 60-80% |
| This patent does not add carbon source | 60-80% |
| This patent adds carbon source | 70-95% |
Town sewage plant is when processing sanitary sewage, and the total nitrogen content in sewage (water inlet) is generally 30-40 mg/L.If based on this, according to above-mentioned clearance index, can be calculated: adopt traditional denitrogenation (total nitrogen) technique, in sewage after processing, total nitrogen content is in 12-24 mg/L left and right, if add Additional carbon sources, in the sewage after processing, total nitrogen content is in 8-16 mg/L left and right.Adopt this patent biological denitrificaion (total nitrogen) technique, in the sewage after processing, total nitrogen content is in 6-12 mg/L left and right, if add Additional carbon sources, in the sewage after processing, total nitrogen content is in 1.5-9mg/L left and right.
From above-mentioned narration: the method for utilizing wood, decayed timber to carry out a step denitrogenation of the present invention utilizes the mushroom that decayed timber is anaerobism to build natural parasitic environment, decode the special bacterial strain of new biological denitrificaion or flora and microbial transformation mechanism, improved one-tenth activity and the reproduction speed of microflora.δ-mycetozoan, the γ-mycetozoan of Δ-Proteobacteria (Proteobacteria), the breeding of β-mycetozoan have particularly effectively been promoted.And in denitrification process, without adding any chemistry or organic substance, directly utilize in sewage the mushroom scrubbing of making a false countercharge, saved raw material consumption; And in order to build the anaerobism living environment of mushroom, in denitrification process, without aeration, saved manpower and materials, thereby reduced cost.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a method of utilizing natural organic filler wood, decayed timber enrichment denitrogenation environmental microorganism flora to carry out a step denitrogenation, comprises following several step:
Step S1, is that 9-10% hydrochloric acid soln continued to soak after 20-30 hour by decayed timber concentration, decayed timber is pulled out, and rinsed well;
Step S3, is placed into decayed timber in basic inorganic salt solution and soaks 28-32 days;
Step S5, is placed on decayed timber in the denitrification tank under Anammox environment and carries out mushroom cultivation, keeps temperature 20-30 ° of C in denitrification tank; And sewage is drained in denitrification tank, the ambient growth that can utilize carrier to provide due to described environmental microorganism flora, and absorb nitrogenous source from low nitrogenous water surrounding, required as spontaneous growing nutrient, make it progressively at described carrier surface, form dominant microflora, and the ratio of the combination of Betaproteobacteria, Gammaproteobacteria, Deltaproteobacteria reaches 50% when above in Δ-Proteobacteria, can realize the i.e. step denitrogenation of removal of total nitrogen.Tradition nitration denitrification bacterium cannot survive in this environment, in competitive disadvantages.Induction and enrichment through lasting, form meticulous denitrogenation environmental microorganism dominant microflora gradually on described carrier.The described carrier the longest 20-25 that reaches in work-ing life.
2. the method for utilizing wood, decayed timber enrichment denitrogenation environmental microorganism flora to carry out a step denitrogenation according to claim 1, it is characterized in that, in described step S1, it is that the sodium hydroxide solution of 1-2% soaks 20-30 hour that decayed timber after rinsing well is put into massfraction again, afterwards, pick up decayed timber water flushing again.It is characterized in that: natural organic filler decayed timber is carrier, slightly becomes thoroughly decomposed in surface, inner hardness is better, stackable combination, and environment water temperature exerts an influence to bacterial classification enrichment speed, but be far smaller than conventional denitrification process.Environment water temperature is 10 ° of C ~ 30 during ° C, and enrichment speed can be accelerated; When water temperature is greater than 1 ° of C lower than 5 ° of C, enrichment speed can be affected, and keeps water temperature at 10 ° of C ~ 30 ° C, can complete the enrichment of described carrier to denitrogenation environmental microorganism flora at 45 ~ 60 days, and after this, the water temperature of day-to-day operation is minimum adapts to 1 ° of C.
3. the method for utilizing wood, decayed timber to carry out a step denitrogenation according to claim 2, is characterized in that, the decayed timber after rinsing is put into physiological saline soak 20-30 hour with immersion water in sodium hydroxide solution.
4. the method for utilizing wood, decayed timber to carry out a step denitrogenation according to claim 1, is characterized in that, in described step S3, described inorganic salt solution comprises following material: the KHCO of 0.40-0.6 gL-1
3, the MgSO of 0.30-0.35 gL-1
47H
2o, the KH of 0.02-0.03 gL-1
2pO
4, the CaCl of 0.1-0.15 gL-1
2, the NaNO of 0.3-0.4 gL-1
2, (the NH of 0.4-0.5 gL-1
4)
2sO
4.
5. the method for utilizing wood, decayed timber to carry out a step denitrogenation according to claim 1, is characterized in that, described step S5 comprises:
S51, is placed in decayed timber in the denitrification tank under described Anammox environment by the rule of setting;
S52, is full of described denitrification tank by sewage, and makes sewage natural flow in described denitrification tank, continues to keep 5-8 week to carry out mushroom cultivation; By the nitric wastewater carrier of flowing through, can adopt the mode that refluxes or do not reflux to cultivate, lure that denitrogenation environmental microorganism flora absorbs nitrogenous source from nitrogenous former water into, constantly enrichment;
S53, in described denitrification tank, start to occur anaerobic ammonia oxidizing bacteria, and the quantitative proportion of δ-mycetozoan, γ-mycetozoan, β-mycetozoan Betaproteobacteria, Gammaproteobacteria, Deltaproteobacteria reaches 50% when above, continue sewage discharge to carry out a step denitrogenation to described denitrification tank.
6. the method for utilizing wood, decayed timber to carry out a step denitrogenation according to claim 5, it is characterized in that, in described step S51, many described decayed timbers are arranged into being emitted in described denitrification tank in layer, and are provided with fixedly filter between every adjacent two layers decayed timber.
7. the method for utilizing wood, decayed timber to carry out a step denitrogenation according to claim 1, is characterized in that, selected wood is cultivated the starting material in source as main body, and before described step S1, described wood is become thoroughly decomposed for described decayed timber.For the carrier of the induction of denitrogenation environmental microorganism flora and enrichment, can adopt the training method of one-level or secondary bed of packings.
8. the method for utilizing wood, decayed timber to carry out a step denitrogenation according to claim 7, it is characterized in that, when using new enrichment denitrification microorganism flora carrier, can be by mixing with the carrier that carried out described bacterial classification enrichment, shorten the enrichment time of the above denitrogenation environmental microorganism flora of novel vector, and described carrier wood comprises coconut husk, shell, wood powder, trees or dry branches and fallen leaves.
9. the method for utilizing wood, decayed timber to carry out a step denitrogenation according to claim 7, is characterized in that, described wood becomes thoroughly decomposed and comprises the steps: for described decayed timber
S11, fully soaks described wood water, makes described wood water content reach 40%-50%, in described water, can add urea;
S15, becomes wood heap by the described wood interfolded after soaking, when the temperature of the center of the described wood heap of monitoring rises to 55 ° of C-65 ° C, described wood heap upset, and turning, and add white-rot fungus; After described white-rot fungus and described wood are fully mixed, again build wood heap, and continue to stack 14-16 days;
S17, upsets described wood heap again, turning, and rebuild wood heap, and lasting stacking after 14-16 days become thoroughly decomposed.
10. the method for utilizing wood, decayed timber to carry out a step denitrogenation according to claim 9, it is characterized in that, between described S11 and described S15, described wood interfolded after soaking is piled to form wood, when the temperature of the center of described wood heap rises to 55 ° of C-65 ° C, described wood heap is upset, turning, and interfolded is rebuild wood heap at least one times again.
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| CN105638247A (en) * | 2016-02-03 | 2016-06-08 | 程雪娇 | Method for breeding fungi by means of rotten wood |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008296164A (en) * | 2007-06-01 | 2008-12-11 | Hitachi Plant Technologies Ltd | Nitrogen removal method and apparatus |
| CN103509719A (en) * | 2013-09-29 | 2014-01-15 | 中国科学技术大学 | Efficient co-culture method of denitrification anaerobic methane oxidation and anaerobic ammonia oxidation mixed microbial system |
| CN103663723A (en) * | 2013-12-04 | 2014-03-26 | 武汉碧湖环境工程设计有限责任公司 | Method for further denitrogenation by using wood and rotten wood |
-
2014
- 2014-06-06 CN CN201410248823.6A patent/CN104129847A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008296164A (en) * | 2007-06-01 | 2008-12-11 | Hitachi Plant Technologies Ltd | Nitrogen removal method and apparatus |
| CN103509719A (en) * | 2013-09-29 | 2014-01-15 | 中国科学技术大学 | Efficient co-culture method of denitrification anaerobic methane oxidation and anaerobic ammonia oxidation mixed microbial system |
| CN103663723A (en) * | 2013-12-04 | 2014-03-26 | 武汉碧湖环境工程设计有限责任公司 | Method for further denitrogenation by using wood and rotten wood |
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| CN105638247A (en) * | 2016-02-03 | 2016-06-08 | 程雪娇 | Method for breeding fungi by means of rotten wood |
| WO2017133036A1 (en) * | 2016-02-03 | 2017-08-10 | 程雪娇 | Method for breeding fungi by using rotten wood |
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