CN113087301B - Ectopic microorganism remediation method for river sewage - Google Patents

Ectopic microorganism remediation method for river sewage Download PDF

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CN113087301B
CN113087301B CN202110378153.XA CN202110378153A CN113087301B CN 113087301 B CN113087301 B CN 113087301B CN 202110378153 A CN202110378153 A CN 202110378153A CN 113087301 B CN113087301 B CN 113087301B
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river sewage
sewage
raoultella
heterotrophic nitrification
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CN113087301A (en
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孔康泓
陈英伟
陈康鑫
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Changzhou Kanglu Environmental Protection Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • 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
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/11—Turbidity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/14—NH3-N
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/22—O2
    • 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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/40—Protecting water resources
    • Y02A20/402—River restoration

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Abstract

The application belongs to the technical field of environmental microorganisms, and particularly relates to a method for restoring ectopic microorganisms of river sewage; the technical points are as follows: s1, taking river sewage, testing the ammonia nitrogen concentration C of the river sewage and collecting basic data; s2, inoculating and expanding the efficient heterotrophic nitrification-aerobic denitrification Raoultella, and primarily enriching; s3, carrying out primary treatment on the river sewage in the step S1 by adopting the Raoultella of the high-efficiency heterotrophic nitrification-aerobic denitrification in the step S2 to obtain primarily treated river sewage; s4, filtering the river sewage after the primary treatment obtained in the step S3, wherein the filtrate is the restored river sewage. According to the invention, the addition amount of the heterotopic microorganisms in the riverway sewage remediation treatment is determined by parameters such as the riverway sewage flow speed, the riverway sewage ammonia nitrogen concentration, the riverway sewage pH value and the like, so that the heterotopic microorganisms can be standardized, the precision of the input amount is improved, and the problem that the degradation rate is influenced due to insufficient aeration caused by excessive input is avoided.

Description

Ectopic microorganism remediation method for river sewage
Technical Field
The application belongs to the technical field of environmental microorganisms, and particularly relates to an ectopic microorganism remediation method for river sewage.
Background
At present, urban rivers in China are seriously polluted, and river sewage in most places is characterized by low organic matter concentration, relatively high nitrogen and phosphorus content and continuous change of water quality and water quantity along with seasons. In the prior art, although the traditional municipal sewage treatment process has higher treatment capacity on organic matters, the removal capacity on nitrogen and phosphorus is poorer. The microbial remediation technology is a new technology for remedying the water body pollution which is rapidly developed recently. The remediation technology mainly utilizes the absorption, transformation or degradation of the microorganisms to the pollutants in the water body, thereby achieving the purpose of slowing down or finally eliminating the pollution. The ectopic microorganism repair process treats the urban river sewage, converts organic nitrogen into ammonia nitrogen through aerobic autotrophic microorganisms, and finally releases the ammonia nitrogen to complete nitrogen circulation through the nitrification of nitrifying bacteria and the denitrification of denitrifying bacteria. The novel repairing process has low operation cost and small investment; the microorganism finally converts the pollutants into nitrogen, and the influence on the surrounding environment is small; the position of the processing object is not changed, and the operation management is simple and convenient; the treatment effect is good, and the pollutant removal efficiency is high. The heterotopic microorganism repairing technology has the defects that an electron acceptor is provided in an aeration mode, so that the operation cost is increased; when the amount of added nutrients is excessive, secondary pollution is caused. The heterotopic microorganism is very sensitive to temperature and ammonia nitrogen concentration, so the input amount of the heterotopic microorganism is a key factor for thoroughly treating the river sewage, and a standard method for judging the addition amount of the heterotopic microorganism in the river sewage treatment is lacked in the prior art.
In view of the defects of the prior art, the inventor develops a method for restoring ectopic microorganisms of river sewage by matching theoretical analysis and innovation based on years of abundant experience and professional knowledge of the materials and determining the input amount of the ectopic microorganisms in the river sewage treatment process under different environments according to the temperature, the pH value and the river sewage flow rate, so that the input amount of the ectopic microorganisms is standardized, and the phenomena of insufficient aeration by more throwing or low degradation rate by less throwing and the like are avoided.
Disclosure of Invention
The invention aims to provide a method for restoring ectopic microorganisms in river sewage, which can quantify the addition amount of the ectopic microorganisms in the river sewage restoration treatment through parameters such as river sewage flow rate, river sewage ammonia nitrogen concentration, river sewage pH value and the like, so that the standard quantification can be obtained, the precision of the input amount is improved, and the influence on the degradation rate due to insufficient aeration caused by excessive input is further avoided.
The technical purpose of the invention is realized by adopting the following technical scheme:
a method for restoring ectopic microorganisms of river sewage comprises the following operation steps:
s1, taking river sewage, testing the ammonia nitrogen concentration C of the river sewage and collecting basic data;
s2, inoculating and expanding the efficient heterotrophic nitrification-aerobic denitrification Raoultella, and primarily enriching;
s3, carrying out primary treatment on the river sewage in the step S1 by adopting the Raoultella of the high-efficiency heterotrophic nitrification-aerobic denitrification in the step S2 to obtain primarily treated river sewage;
s4, filtering the river sewage after the primary treatment obtained in the step S3, wherein the filtrate is the restored river sewage;
in which the step ofThe addition amount M of the Raoultella rufusi with efficient heterotrophic nitrification-aerobic denitrification in S3 is defined by the formula M ═ a × C2+ b × C + q, where a, b, q are regression parameters. According to the invention, the river sewage is treated by adopting Raoultella rapae of high-efficiency heterotrophic nitrification-aerobic denitrification, and the addition of microorganisms is determined according to the ammonia nitrogen concentration in the river sewage, so that the operation management is simple and convenient; the treatment effect is good, and the ammonia nitrogen content of the river sewage is effectively reduced.
Further, the basic data collection in step S1 includes collection of data of the pH S, the temperature T and the flow rate v of the river sewage. The microorganism adopted by the invention is very sensitive to the pH value and the temperature of the river sewage, and the slight change of the pH value and the temperature can have great influence on the degradation effect; and the flow rate of the river sewage can directly influence the input amount of microorganisms.
Further, a heterotrophic nitrifier culture medium is inoculated for primary screening, and then the bacterial strain with the heterotrophic nitrification-aerobic denitrification capability is screened out again by a bromothymol blue (BTB) plate screening method. And then the screened microorganisms are subjected to twice enrichment processes through a test tube and a conical flask respectively so as to improve the quantity and activity of the microorganisms.
Furthermore, the addition M of the Raoultella rapi for high-efficiency heterotrophic nitrification-aerobic denitrification is corrected and compensated by using an addition calculation model and a data compensation model. Since the pH value, the temperature and the flow rate of the river sewage affect the input amount of the microorganisms, the input amount of the microorganisms is corrected and compensated according to the pH value, the temperature and the flow rate of the river sewage in the treatment method provided by the invention.
Further, after the addition M of the Raoultella rapi for the high-efficiency heterotrophic nitrification-aerobic denitrification is corrected by using an addition calculation model, the addition of the Raoultella rapi for the high-efficiency heterotrophic nitrification-aerobic denitrification is M1，M1K · M; k is a total adjustment coefficient which is determined by the flow velocity v of the sewage in the river channel and the concentration C of ammonia nitrogen,
Figure BDA0003011630480000031
wherein b, m1，m2Is a regression parameter, the unit of the river sewage flow velocity v is m/s, and the unit of the ammonia nitrogen concentration C is mg/L. When the flow rate of the river sewage is high, more microorganisms need to be added, the flow rate is high, the aeration rate is low, the degradation result is not affected, more microorganisms can be added at the moment, and the degradation rate is improved.
Further, the addition amount of the Raoultella rapana of the high-efficiency heterotrophic nitrification-aerobic denitrification is M by utilizing a data compensation model1After compensation, the addition amount of the Raoultella rapae of the high-efficiency heterotrophic nitrification-aerobic denitrification is M2，M2＝M1+ N, N is a compensation value determined by the temperature of the river sewage, and N is-1.22T3+52.64T2-89T + 32; wherein T is the temperature of the river sewage and the unit is ℃. The nitrification-denitrification of the microorganisms is best at 25-30 ℃, and the decomposition rate is influenced when the temperature is lower or higher than the temperature, so that when the temperature is lower or higher than the temperature range, more microorganisms are added to ensure the decomposition rate.
Further, the pH value S of the river sewage is secondarily corrected for the amount of the laoultella effective heterotrophic nitrification-aerobic denitrification added in steps S3 and S5. When the pH value of the river sewage exceeds the optimal range of microorganisms, the decomposition rate of the river sewage is reduced, so that the sewage treatment rate is reduced, the sewage treatment efficiency is influenced, the input amount of the microorganisms is corrected through the change of the pH value, the sewage treatment rate can be ensured, and the influence on the turbidity of the river water is reduced.
Further, the addition amount of the high-efficiency heterotrophic nitrification-aerobic denitrification Raoultella subjected to secondary correction is M3，M3＝k·M2K is a quadratic correction sum adjustment coefficient,
Figure BDA0003011630480000041
wherein v is the flow velocity of the river sewage, the unit is m/S, S is the pH value of the river sewage, and n is1And n2Are regression parameters.
Further, in step S4, a porous adsorbent is added and then filtered. The adsorbent is used for adsorbing residual microorganisms in the treated water and preventing the residual microorganisms from influencing the water quality of the river water.
Further, the porous adsorbent is porous ceramic or molecular sieve. By adopting porous ceramic or molecular sieve, on one hand, the residual microorganisms can be adsorbed, on the other hand, the water quality can be further purified, and the water can be recycled after being filtered.
In conclusion, the invention has the following beneficial effects:
according to the invention, the addition amount of the heterotopic microorganisms in the riverway sewage restoration treatment is determined by parameters such as the riverway sewage flow speed, the riverway sewage ammonia nitrogen concentration, the riverway sewage pH value and the like, so that the heterotopic microorganisms can be standardized, the precision of the input amount is improved, the riverway sewage treatment speed is improved, and a better treatment effect is obtained.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the present invention provides an improved method for classifying soluble contaminant components based on the contaminant classification, and the specific implementation, characteristics and effects thereof are described in detail as follows.
Example 1: sewage treatment of bottom river in Wu-Cheng district of Changzhou city
The bottom river is located in a lake and ballast area of a Wuzhou city Wu-Ching district, and the surrounding residential areas are concentrated and accompanied by domestic sewage leakage and the condition that sewage interception is not in place, so that the water body environment is damaged, the black and odorous phenomenon is obvious, fishes die, the ammonia nitrogen in the water body is ultrahigh, and indexes such as oxidation-reduction potential, dissolved oxygen and the like exceed the water content standard of a river channel. The embodiment makes the following repairing method for the same:
s1, taking river sewage, testing the ammonia nitrogen concentration C of the river sewage and collecting basic data;
s2, inoculating and expanding the efficient heterotrophic nitrification-aerobic denitrification Raoultella, and primarily enriching;
s3, carrying out primary treatment on the river sewage in the step S1 by adopting the Raoultella of the high-efficiency heterotrophic nitrification-aerobic denitrification in the step S2 to obtain primarily treated river sewage;
s4, filtering the river sewage after the primary treatment obtained in the step S3, wherein the filtrate is the restored river sewage;
wherein the addition amount M of the Raoultella in step S3 is represented by the formula M ═ a × C2+ b × C + q, where a, b, q are regression parameters.
The detection data for treating the water sample by the method of the embodiment are as follows:
TABLE 1 Water sample data before and after treatment of the trench river
Figure BDA0003011630480000061
Example 2: double-channel river sewage treatment in Changzhou city
The double-ditch river is positioned on a new gate street in a clockwork area, the surrounding villages are gathered, the population is concentrated, and the domestic sewage and domestic garbage are poured into the river all the year round.
The embodiment makes the following repairing method for the same:
s1, taking river sewage, testing the ammonia nitrogen concentration C of the river sewage, and acquiring the data of the pH value S, the temperature T and the river sewage flow velocity v of the river sewage;
s2, inoculating and expanding the efficient heterotrophic nitrification-aerobic denitrification Raoultella, and primarily enriching;
s3, carrying out primary treatment on the river sewage in the step S1 by adopting the Raoultella of the high-efficiency heterotrophic nitrification-aerobic denitrification in the step S2 to obtain primarily treated river sewage;
s4, filtering the river sewage after the primary treatment obtained in the step S3, wherein the filtrate is the restored river sewage;
wherein the addition amount M of the Raoultella in step S3 is represented by the formula M ═ a × C2+ bXC + q, wherein a, b and q are regression parameters, and the addition M of the Raoultella for high-efficiency heterotrophic nitrification-aerobic denitrification is corrected by using an addition calculation model, and the corrected addition is M1，M1K is a sum adjustment coefficient;
Figure BDA0003011630480000062
namely, the addition amount of the Raoultella rapae of the efficient heterotrophic nitrification-aerobic denitrification in the step S3 is
Figure BDA0003011630480000071
Wherein b, m1，m2Is a regression parameter, the unit of the river sewage flow velocity v is m/s, and the unit of the ammonia nitrogen concentration C is mg/L.
The detection data for treating the water sample by the method of the embodiment are as follows:
TABLE 2 Water sample data before and after treatment of double rivers
Oxidation reduction potential Ammonia nitrogen/mg.L-1 Transparency Dissolved oxygen/mg. L-1
Before treatment 7 25 10.5 1.1
After treatment 68 3.5 58 8.5
Example 3: changzhou city Songjiang river sewage treatment
In a loose river, which is located in a new village in Zhouzhong villages, due to the fact that the rainfall amount is large in plum rain season, garbage wastewater in the garbage transfer station is discharged into a river channel, a large amount of fishes die, and strong pungent smell is emitted, and the following repairing method is implemented in the embodiment:
s1, taking river sewage, testing the ammonia nitrogen concentration C of the river sewage, and acquiring the data of the pH value S, the temperature T and the river sewage flow velocity v of the river sewage;
s2, inoculating and expanding the efficient heterotrophic nitrification-aerobic denitrification Raoultella, and primarily enriching;
s3, carrying out primary treatment on the river sewage in the step S1 by adopting the Raoultella of the high-efficiency heterotrophic nitrification-aerobic denitrification in the step S2 to obtain primarily treated river sewage;
s4, filtering the river sewage after the primary treatment obtained in the step S3, wherein the filtrate is the restored river sewage;
wherein the addition amount M of the Raoultella in step S3 is represented by the formula M ═ a × C2+ bXC + q, wherein a, b and q are regression parameters, and the addition M of the Raoultella for high-efficiency heterotrophic nitrification-aerobic denitrification is corrected by using an addition calculation model, and the corrected addition is M1，M1K is a sum adjustment coefficient;
Figure BDA0003011630480000081
and the addition of the Raoultella rapae of the high-efficiency heterotrophic nitrification-aerobic denitrification is M by utilizing a data compensation model1After compensation, the addition amount of the Raoultella rapae of the high-efficiency heterotrophic nitrification-aerobic denitrification is M2，M2＝M1+ N, N is a compensation value determined by the temperature of the river sewage, and N is-1.22T3+52.64T2-89T + 32; namely, the addition amount of the Raoultella rapae of the efficient heterotrophic nitrification-aerobic denitrification in the step S3 is
Figure BDA0003011630480000082
Wherein T is the temperature of the river sewage, and the unit is; b, m1，m2Is a regression parameter, the unit of the river sewage flow velocity v is m/s, the unit of the ammonia nitrogen concentration C is mg/L, n1And n2Are regression parameters.
The detection data for treating the water sample by the method of the embodiment are as follows:
TABLE 3 Water sample data before and after Songjiang river treatment
Oxidation reduction potential Ammonia nitrogen/mg.L-1 Transparency Dissolved oxygen/mg. L-1
Before treatment -53 55.4 -1.9 0.6
After treatment 79 3.1 56 6.6
Example 4: changzhou Yanjia creek sewage treatment
The Yanjia creek is located in a lake pond Zhengming river industry centralized area, surrounding factory areas stand up, industrial wastewater steals into a river, and the method for repairing the Yanjia creek comprises the following steps:
s1, taking river sewage, testing the ammonia nitrogen concentration C of the river sewage, and acquiring the data of the pH value S, the temperature T and the river sewage flow velocity v of the river sewage;
s2, inoculating and expanding the efficient heterotrophic nitrification-aerobic denitrification Raoultella, and primarily enriching;
s3, carrying out primary treatment on the river sewage in the step S1 by adopting the Raoultella of the high-efficiency heterotrophic nitrification-aerobic denitrification in the step S2 to obtain primarily treated river sewage;
s4, filtering the river sewage after the primary treatment obtained in the step S3, wherein the filtrate is the restored river sewage;
wherein the addition amount M of the Raoultella in step S3 is represented by the formula M ═ a × C2+ bXC + q, wherein a, b and q are regression parameters, and the addition M of the Raoultella for high-efficiency heterotrophic nitrification-aerobic denitrification is corrected by using an addition calculation model, and the corrected addition is M1，M1K is a sum adjustment coefficient;
Figure BDA0003011630480000091
and the addition of the Raoultella rapae of the high-efficiency heterotrophic nitrification-aerobic denitrification is M by utilizing a data compensation model1After compensation, the addition amount of the Raoultella rapae of the high-efficiency heterotrophic nitrification-aerobic denitrification is M2，M2＝M1+ N, N is a compensation value determined by the temperature of the river sewage, and N is-1.22T3+52.64T2-89T + 32; simultaneously, the adding amount M of the efficient heterotrophic nitrification-aerobic denitrification Raoultella in the step S3 is determined according to the pH value S of the river sewage and the flow velocity v of the river sewage2Performing secondary correction to obtain the addition M3K is a quadratic correction sum adjustment coefficient,
Figure BDA0003011630480000092
namely, the addition amount of the Raoultella rapae of the efficient heterotrophic nitrification-aerobic denitrification in the step S3 is
Figure BDA0003011630480000093
Wherein v is the flow velocity of the river sewage, the unit is m/S, S is the pH value of the river sewage,
Figure BDA0003011630480000094
wherein T is the temperature of the river sewage, and the unit is; b, m1，m2Is a regression parameter, the unit of the ammonia nitrogen concentration C is mg/L, n1And n2Are regression parameters.
The detection data for treating the water sample by the method of the embodiment are as follows:
table 4 Water sample data before and after Yangjia creek treatment
Figure BDA0003011630480000095
Figure BDA0003011630480000101
Example 5: sewage treatment of Changzhou sightseeing park creek
The scenic spot garden creek is located in a district where the Wu-Chi enters and the town where the scenic spot garden is remotely observed, domestic sewage is discharged into the river, the life of residents in the district is seriously affected, and the embodiment makes the following repairing method for the scenic spot garden creek:
s1, taking river sewage, testing the ammonia nitrogen concentration C of the river sewage, and acquiring the data of the pH value S, the temperature T and the river sewage flow velocity v of the river sewage;
s2, inoculating and expanding the efficient heterotrophic nitrification-aerobic denitrification Raoultella, and primarily enriching;
s3, carrying out primary treatment on the river sewage in the step S1 by adopting the Raoultella of the high-efficiency heterotrophic nitrification-aerobic denitrification in the step S2 to obtain primarily treated river sewage;
s4, adding a porous ceramic adsorbent for adsorption after the primary treatment obtained in the step S3, and filtering the river sewage after adsorption to obtain filtrate, namely the restored river sewage;
wherein the addition amount M of the Raoultella in step S3 is represented by the formula M ═ a × C2+ bXC + q, wherein a, b and q are regression parameters, and the addition M of the Raoultella for high-efficiency heterotrophic nitrification-aerobic denitrification is corrected by using an addition calculation model, and the corrected addition is M1，M1K is a sum adjustment coefficient;
Figure BDA0003011630480000102
and the addition of the Raoultella rapae of the high-efficiency heterotrophic nitrification-aerobic denitrification is M by utilizing a data compensation model1After compensation, the addition amount of the Raoultella rapae of the high-efficiency heterotrophic nitrification-aerobic denitrification is M2，M2＝M1+ N, N is a compensation value determined by the temperature of the river sewage, and N is-1.22T3+52.64T2-89T + 32; simultaneously, the adding amount M of the efficient heterotrophic nitrification-aerobic denitrification Raoultella in the step S3 is determined according to the pH value S of the river sewage and the flow velocity v of the river sewage2Performing secondary correction to obtain the addition M3K is a quadratic correction sum adjustment coefficient,
Figure BDA0003011630480000111
namely, the addition amount of the Raoultella rapae of the efficient heterotrophic nitrification-aerobic denitrification in the step S3 is
Figure BDA0003011630480000112
Wherein v is the flow velocity of the river sewage, the unit is m/S, S is the pH value of the river sewage,
Figure BDA0003011630480000113
wherein T is the temperature of the river sewage, and the unit is;b，m1，m2is a regression parameter, the unit of the ammonia nitrogen concentration C is mg/L, n1And n2Are regression parameters.
The detection data for treating the water sample by the method of the embodiment are as follows:
TABLE 5 Water sample data before and after river and creek treatment in landscape garden
Oxidation reduction potential Ammonia nitrogen/mg.L-1 Transparency Dissolved oxygen/mg. L-1
Before treatment 6 12.6 14 0.7
After treatment 105 1.9 53 9.8
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (4)

1. The ectopic microorganism restoring method of the river sewage is characterized by comprising the following operation steps:
s1, taking river sewage, testing the ammonia nitrogen concentration C of the river sewage and collecting basic data;
s2, inoculating and expanding the efficient heterotrophic nitrification-aerobic denitrification Raoultella, and primarily enriching;
s3, carrying out primary treatment on the river sewage in the step S1 by adopting the Raoultella of the high-efficiency heterotrophic nitrification-aerobic denitrification in the step S2 to obtain primarily treated river sewage;
s4, filtering the river sewage after the primary treatment obtained in the step S3, wherein the filtrate is the restored river sewage;
wherein the addition amount M of the Raoultella in step S3 is represented by the formula M ═ a × C2+ bxC + q, wherein a, b, q are regression parameters; the basic data acquisition in the step S1 comprises the acquisition of data of the pH value S, the temperature T and the river sewage flow velocity v of the river sewage; correcting and compensating the addition M of the Raoultella rapae for the efficient heterotrophic nitrification-aerobic denitrification by using an addition calculation model and a data compensation model; after the addition M of the Raoultella for high-efficiency heterotrophic nitrification-aerobic denitrification is corrected by using an addition calculation model, the addition of the Raoultella for high-efficiency heterotrophic nitrification-aerobic denitrification is M1，M1K · M; k is a total adjustment coefficient which is determined by the flow velocity v of the sewage in the river channel and the concentration C of ammonia nitrogen,
Figure FDA0003336203500000011
wherein b, m1，m2Is a regression parameter, the unit of the river sewage flow velocity v is m/s, and the unit of the ammonia nitrogen concentration C is mg/L; the addition amount of the Raoultella rapae for the high-efficiency heterotrophic nitrification-aerobic denitrification by utilizing a data compensation model is M1After compensation, the addition amount of the Raoultella rapae of the high-efficiency heterotrophic nitrification-aerobic denitrification is M2，M2＝M1+ N, N is a compensation value determined by the temperature of the river sewage, and N is-1.22T3+52.64T2-89T + 32; wherein T is the temperature of the river sewage and the unit is ℃.
2. The method for remedying the ectopic microorganism in the river wastewater according to claim 1, wherein the addition amount M of the Raoultella eutropha nitrifying-aerobic denitrifying Raoultella in the step S3 is determined according to the pH value S of the river wastewater and the flow velocity v of the river wastewater2Carrying out secondary correction; the addition amount of the high-efficiency heterotrophic nitrification-aerobic denitrification Raoultella subjected to secondary correction is M3，M3＝k·M2K is a quadratic correction sum adjustment coefficient,
Figure FDA0003336203500000021
wherein v is the flow velocity of the river sewage, the unit is m/S, S is the pH value of the river sewage, and n is1And n2Are regression parameters.
3. The method for remediating ectopic microorganisms in river wastewater according to claim 1, wherein the step S4 comprises filtering the river wastewater after adding the porous adsorbent.
4. The ectopic microbial remediation method of river sewage according to claim 3, wherein the porous adsorbent is porous ceramic or molecular sieve.
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