CN115304166A - Method for treating wastewater containing gentamicin titer and pollutants by using aquatic plant purification pond - Google Patents

Method for treating wastewater containing gentamicin titer and pollutants by using aquatic plant purification pond Download PDF

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CN115304166A
CN115304166A CN202210987648.7A CN202210987648A CN115304166A CN 115304166 A CN115304166 A CN 115304166A CN 202210987648 A CN202210987648 A CN 202210987648A CN 115304166 A CN115304166 A CN 115304166A
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gentamicin
removal rate
titer
aquatic plant
cod
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CN115304166B (en
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张家俊
周英楠
毛宁
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Fu'an Pharmaceutical Group Yantai Justawore Pharmaceutical Co ltd
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Fu'an Pharmaceutical Group Yantai Justawore Pharmaceutical 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
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
    • 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
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/34—Organic compounds containing oxygen
    • 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
    • C02F2101/30—Organic compounds
    • C02F2101/38—Organic compounds containing nitrogen
    • 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
    • C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
    • 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
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • 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
    • C02F2209/16—Total nitrogen (tkN-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
    • C02F2209/18—PO4-P
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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Abstract

The application provides a method for treating waste water containing gentamicin valence and pollutant by using an aquatic plant purification pond, which comprises the steps of planting 17-23 eichhornia crassipes, 12-18 reeds, 12-18 cattail sticks, 27-33 hydrilla verticillata, 12-18 crispus and 17-23 chrysosporium in each square meter of mixed waste water of industrial waste water containing gentamicin valence and domestic sewage by combining planting eichhornia crassipes, reed, cattail sticks, hydrilla verticillata, curly pondweed and chrysosporium in the aquatic plant purification pond; the removal rate of the gentamicin titer in the application reaches 88.38%, the removal rate of COD reaches 90.12%, and NH is added 3 The removal rate of-N reaches 87.69 percent, the removal rate of TN reaches 90.12 percent,the removal rate of TP reaches 88%, the removal effect is good, the management is convenient, the energy can be saved, the operation and the maintenance are convenient, and the secondary pollution is not generated.

Description

Method for treating wastewater containing gentamicin titer and pollutants by using aquatic plant purification pond
Technical Field
The invention belongs to the technical field of wastewater treatment, and particularly relates to a method for treating wastewater containing gentamicin titer and pollutants by using an aquatic plant purification pond.
Background
Gentamicin is an aminoglycoside antibiotic independently developed and succeeded in China, belongs to a fermentation antibiotic, has stable property and is difficult to prepareAnd (5) removing. The treatment method of the waste water generated by producing the gentamicin at present mainly comprises the following steps: (1) The method has large floor area, and a biochemical system is easy to suffer load impact due to the instability of the production of the fermentation antibiotics, and is difficult to stably run and discharge after reaching the standard; (2) The Fenton + biochemical treatment mode uses a large amount of H 2 O 2 、FeSO 4 •7H 2 O 、H 2 SO 4 And NaOH are used as medicaments, and all the medicaments belong to chemicals, are dangerous and have high management difficulty.
The aquatic plant purifying pond is a special aquatic ecosystem formed by certain aquatic plants in absolute dominance, and the system achieves the sewage purifying effect through physical actions of filtration resistance, sedimentation, adsorption and the like of aquatic plant communities and actions of absorption, accumulation and the like of plant bodies. In recent years, aquatic plant purification ponds have developed rapidly at home and abroad, and more types of sewage can be purified, and the purification of domestic sewage is developed into industrial wastewater and urban mixed sewage; the treatment scale is also getting bigger and bigger, and the water quality and river bed sludge are purified by the aquatic plants cultivated in natural ponds and lakes and bays from the artificial purification pond; in the aspect of the utilization of aquatic plants, one plant is mainly developed to be matched with a plurality of plants so as to mutually make up for deficiencies and achieve the best purification effect.
The key point of effectively removing the potency and the pollutant of the gentamicin wastewater in the aquatic plant purification pond is the selection of the aquatic plants. Among the known techniques, there has been no report on the treatment of wastewater containing a gentamicin titer by planting various plants in an aquatic plant purification pond.
Disclosure of Invention
The invention aims to provide a method for treating wastewater containing gentamicin titer and pollutants by using an aquatic plant purification pond.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a method for treating waste water containing gentamicin potency and pollutants by using an aquatic plant purification pond is characterized in that eichhornia crassipes, reed, cattail, black alga, potamogeton crispus and hornworts aurantiamarus are planted in the aquatic plant purification pond to treat mixed waste water of domestic sewage and industrial waste water containing gentamicin potency.
Preferably, the concentration of the gentamicin titer in the industrial wastewater is 35 mu/mL-45 mu/mL;
in the domestic sewage, the COD is 220 mg/L-240 mg/L and the NH content is 3 N is 14 mg/L to 16 mg/L, TN is 28 mg/L to 32 mg/L, and TP is 3.5 mg/L to 4.0 mg/L.
Preferably, the mixing ratio of the domestic sewage to the industrial wastewater containing the gentamicin titer is (1-2): 1.
Preferably, the aquatic plants are planted in the following number: 17-23 Eichhornia crassipes, 12-18 Phragmites communis, 12-18 Typha orientalis, 27-33 hydrilla verticillata, 12-18 curly pondweed and 17-23 hornwort are planted per square meter.
Preferably, the retention time of the mixed wastewater in the aquatic plant purification pond is 160 to 170 hours.
Compared with the prior art, the invention has the following beneficial technical effects:
(1) The method has high removal rate of the gentamicin titer, adopts a technology of combining various floating plants, emergent aquatic plants and submerged plants to treat the wastewater containing the gentamicin titer and pollutants, and the aquatic plants not only have certain absorption and degradation effects on the gentamicin, but also have good removal effect on other pollutants in the wastewater; in the invention, the reed, the cattail stem and the golden carp algae have good effect of removing the potency of the gentamicin; the water hyacinth and the hydrilla verticillata have stronger stain resistance and strong pollutant removal capacity, and can directly absorb organic matters and inorganic matters in water; the plants are combined and planted in the purification pond in a matching way, so that the gentamicin titer and the pollutant removal efficiency in the wastewater are enhanced, and the aquatic plants are common aquatic plants in nature and are widely applied to a water body purification system.
(2) The cost of the wastewater treatment is low, and the plants such as water hyacinth, reed, cattail stem, hydrilla verticillata, water caltrop and the like are all taken from the nature and have tenacious vitality; wherein the bulrush, the curly pondweed, the hydrilla verticillata and the golden fish algae also have strong cold resistance and are suitable for being planted in the north; the reed and the cattail stem have developed root systems and strong adaptability, can be deeply rooted in the river bed sludge, and can effectively absorb the potency of gentamicin in the river bed sludge; the water hyacinth has strong pollutant removal capacity and super-strong reproductive capacity; the plants are combined and planted in the aquatic purification pond to treat the wastewater containing the gentamicin titer and pollutants, and compared with other methods, the method has lower cost.
(3) The method provided by the invention adopts the aquatic plants to treat the wastewater containing the gentamicin titer and the pollutants, and simultaneously provides a good living environment for microorganisms and aquatic animals in the pond, and the removal effect of the gentamicin titer and the pollutants is further enhanced through the synergistic purification treatment of the microorganisms, the animals and the plants.
(4) The method has the landscape effect while removing the wastewater containing the gentamicin titer and pollutants, and can be used for landscaping landscape appreciation.
(5) The method can save energy, is convenient to operate and maintain, does not generate secondary pollution in the purification process, has good removal effect on the gentamicin titer and other pollutants, is convenient to manage, and can be used for treating the wastewater containing the gentamicin titer and the pollutants, the removal rate of the gentamicin titer reaches 88.38 percent, the removal rate of COD reaches 90.12 percent, and NH is removed 3 The removal rate of-N reaches 87.69%, the removal rate of TN reaches 90.12%, and the removal rate of TP reaches 88%.
Drawings
FIG. 1 is a schematic view showing the structure of a simulated aquatic plant purification pond in the embodiment;
FIG. 2 is a graph of the removal rate of gentamicin titer over time with no aquatic plant growth and only riverbed sludge addition in accordance with the present invention;
FIG. 3 is a graph showing COD removal rate over time of the present invention without planting aquatic plants and adding only riverbed sludge;
FIG. 4 shows NH of a bed sludge without aquatic plant growth over time 3 -a plot of the removal rate of N;
FIG. 5 is a graph showing the removal rate of TN over time without aquatic plants grown and with only riverbed sludge added;
FIG. 6 is a graph showing TP removal rate over time for a bed sludge without aquatic plant growth according to the present invention;
FIG. 7 is a scatter diagram showing the removal rate of gentamicin titer per unit area of different Eichhornia crassipes species plants (the adsorption degradation amount of the riverbed sludge to the gentamicin titer has been deducted) in the present invention;
FIG. 8 is a scatter diagram showing the COD removal rate per unit area for different Eichhornia crassipes species (the amount of COD adsorption degradation by riverbed sludge has been deducted);
FIG. 9 shows the number of Eichhornia crassipes (L.) Craib plants per unit area versus NH in the present invention 3 Scatter plot of removal of-N (riverbed sludge has been deducted for NH) 3 -amount of adsorption degradation of N);
FIG. 10 is a scatter plot of TN removal rate per unit area for different Eichhornia crassipes species (the TN adsorptive degradation amount by riverbed sludge has been deducted);
FIG. 11 is a scatter diagram showing the TP removal rate per unit area for different Eichhornia crassipes species (the amount of TP adsorbed and degraded by riverbed sludge has been deducted) in the present invention;
FIG. 12 is a plot of the removal rate of gentamicin titer per unit area of various reed species plants (the amount of adsorption and degradation of gentamicin titer by riverbed sludge has been deducted) in the present invention;
FIG. 13 is a scatter plot of COD removal per unit area for various reed species (after the amount of COD adsorption degradation by riverbed sludge has been deducted);
FIG. 14 shows the number of reed plants per unit area versus NH in the present invention 3 Scatter plot of removal of-N (riverbed sludge has been deducted for NH) 3 -amount of adsorption degradation of N);
FIG. 15 is a scatter plot of TN removal rate versus the number of reed plants per unit area (the TN adsorptive degradation amount by riverbed sludge has been subtracted) in the present invention;
FIG. 16 is a scatter plot of TP removal rate per unit area for various reed species (the amount of TP adsorbed and degraded by riverbed sludge has been deducted) in the present invention;
FIG. 17 is a plot of the removal rate of gentamicin titer per unit area for different number of futon plants (the amount of adsorption degradation of gentamicin titer by riverbed sludge has been subtracted) in the present invention;
FIG. 18 is a scatter diagram showing the COD removal rate per unit area for various spike plants (the amount of COD adsorbed and degraded by riverbed sludge has been deducted);
FIG. 19 shows the number of cattail seeds per unit area versus NH in accordance with the present invention 3 Scatter plot of removal of-N (riverbed sludge has been deducted for NH) 3 -amount of adsorption degradation of N);
FIG. 20 is a scatter plot of TN removal rate per unit area for different spike plants (after subtraction of TN adsorptive degradation by riverbed sludge);
FIG. 21 is a scatter plot showing the TP removal rate per unit area for various spike plants (the amount of TP adsorbed and degraded by riverbed sludge has been subtracted);
FIG. 22 is a scatter plot of the removal rate of gentamicin titer per unit area of different numbers of black algae species plants in the present invention (the amount of adsorption degradation of gentamicin titer by riverbed sludge has been subtracted);
FIG. 23 is a scattergram of the removal rate of COD by the number of black algae species plants per unit area (the amount of COD adsorbed by riverbed sludge has been deducted) in the present invention;
FIG. 24 shows the number of black algae plants per unit area versus NH in the present invention 3 Scatter plot of removal of-N (riverbed sludge has been deducted for NH) 3 -amount of adsorption degradation of N);
FIG. 25 is a scattergram of TN removal rate per unit area of different numbers of black algae species (after subtracting TN adsorptive degradation amount by riverbed sludge);
FIG. 26 is a scattergram of the TP removal rate per unit area of different numbers of algal species (the amount of TP adsorbed and degraded by riverbed sludge has been subtracted) in the present invention;
FIG. 27 is a scatter plot showing the removal rate of gentamicin potency by number of curly pondweed species per unit area (the adsorption and degradation amount of riverbed sludge to gentamicin potency has been deducted) in the present invention;
FIG. 28 is a scatter diagram showing the removal rate of COD by the number of potamogeton crispus plants per unit area (the amount of COD adsorbed and degraded by riverbed sludge has been deducted) in the present invention;
FIG. 29 shows the number of potamogeton crispus seeds per unit area versus NH in the present invention 3 Scatter plot of removal of-N (riverbed sludge has been deducted for NH) 3 -amount of adsorption degradation of N);
FIG. 30 is a scatter plot showing TN removal rate per unit area of potamogeton crispus plant (TN adsorptive degradation amount by riverbed sludge has been subtracted) in the present invention;
FIG. 31 is a scatter plot showing the TP removal rate per unit area of potamogeton crispus plants (the TP adsorption/degradation amount by riverbed sludge has been deducted);
FIG. 32 is a plot showing the removal rate of gentamicin titer per unit area of different algal Goldfish plants (the amount of adsorption degradation of gentamicin titer by riverbed sludge has been deducted);
FIG. 33 is a scattergram of COD removal rate per unit area for different plant numbers of Goldfish species in accordance with the present invention (the amount of COD adsorption degradation by riverbed sludge has been subtracted);
FIG. 34 shows the number of algal strains per unit area of Goldfish versus NH in the present invention 3 Scatter plot of removal of-N (riverbed sludge has been deducted for NH) 3 -amount of adsorption degradation of N);
FIG. 35 is a scattergram of TN removal rate per unit area for different algal species of Goldfish (after subtraction of TN adsorptive degradation by riverbed sludge);
FIG. 36 is a scattergram of the TP removal rate per unit area for different algal species of Goldfish (the amount of TP adsorbed and degraded by riverbed sludge has been deducted) in the present invention;
FIG. 37 is a graph showing the effect of optimal number of single aquatic plants and combination of multiple aquatic plants on the removal rate of gentamicin titer over time in the present invention;
FIG. 38 is a graph showing the effect of optimal number of individual aquatic plants and combination of multiple aquatic plants on COD removal over time in accordance with the present invention;
FIG. 39 is a graph of the optimal number of individual aquatic plants and the combination of multiple aquatic plant combinations versus NH over time in accordance with the present invention 3 -effect of removal rate of N;
FIG. 40 is a graph showing the effect of optimal number of individual aquatic plants and combination of multiple aquatic plants on TN removal over time in accordance with the present invention;
FIG. 41 is a graph showing the effect of optimal number of individual aquatic plants and combination of multiple aquatic plants on TP removal over time in accordance with the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The application provides a method for treating wastewater containing gentamicin potency and pollutants by using an aquatic plant purification pond, wherein eichhornia crassipes, reed, cattail, hydrilla crispus, and hornworts are planted in the aquatic plant purification pond to treat mixed wastewater of domestic sewage and industrial wastewater containing gentamicin potency.
In one embodiment of the application, the concentration of the gentamicin titer in the industrial wastewater is 35 mu/mL-45 mu/mL;
in the domestic sewage, the COD is 220 mg/L-240 mg/L and the NH content is 3 N is 14 mg/L to 16 mg/L, TN is 28 mg/L to 32 mg/L, and TP is 3.5 mg/L to 4.0 mg/L.
In one embodiment of the application, the mixing ratio of domestic sewage and industrial wastewater containing gentamicin titer is 1: 1 in volume ratio (1-2).
In one embodiment of the present application, the number of aquatic plants planted is: 17-23 Eichhornia crassipes, 12-18 Phragmites communis, 12-18 Typha orientalis, 27-33 hydrilla verticillata, 12-18 curly pondweed and 17-23 hornwort are planted per square meter.
In one embodiment of the present application, the retention time of the mixed wastewater in the aquatic plant purification pond is 160 to 170 hours.
Methods and devices not described in detail in the present invention are all the prior art and are not described in detail.
For further understanding of the present invention, the method for treating wastewater containing gentamicin titer and pollutants by using aquatic plant purification ponds provided by the present invention is described in detail below with reference to the following examples, and the scope of the present invention is not limited by the following examples.
Example 1
Establishing a simulated aquatic plant purification pond: a rectangular aerobic pond system is established and divided into two gallery units, a water through hole is arranged at the upper part of the middle part of the aerobic pond, as shown in figure 1, the depth of the simulated aquatic plant purification pond is 0.8m, the length of the simulated aquatic plant purification pond is 3m, the width of the simulated aquatic plant purification pond is 1m, riverbed sludge with the thickness of 0.3m is paved at the bottom of the simulated aquatic plant purification pond, the aquatic plants are uniformly planted in each unit, and a simulation device is used for enabling waste water to enter and exit from the bottom.
Preparing waste water containing gentamicin titer, adding gentamicin into tap water, preparing the titer concentration to be 40 mu/mL for standby, wherein the added gentamicin is a purchased gentamicin standard product, CAS number: 1405-41-0, batch number: 130326-201716. Mixing the prepared wastewater containing the gentamicin titer with domestic sewage according to the ratio of 1: 1. The potency concentration of gentamicin in the mixed wastewater is 20 mu/mL, and the concentration of other pollutants is detected to be 227mg/L; NH (NH) 3 -N:14.4 mg/L；TN:29.3 mg/L；TP: 3.6 mg/L。
The method comprises the following steps: in a simulation device in an aquatic plant purification pond, aquatic plants are planted in riverbed sludge at the bottom, and then prepared wastewater is injected into the simulation device and cultured at normal temperature; meanwhile, a group of sludge which is not planted with aquatic plants and is paved with a layer of riverbed sludge at the bottom is used as a blank control.
(1) Blank control experiment
The method comprises the following steps: simulation dress in simulation aquatic plant purification pondIn the middle, no aquatic plant is planted on the riverbed sludge at the bottom, and 1m is injected into the device 3 The prepared gentamicin-containing titer concentration is 20 mu/mL, the COD concentration is 227mg/L, and NH 3 Mixed wastewater with N concentration of 14.4 mg/L, TN concentration of 29.3 mg/L and TP concentration of 3.6 mg/L is placed at normal temperature for observation, and sampling is carried out every day to detect the potency, COD and NH of gentamicin 3 The results of-N, TN, and TP indexes are shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG. 6, respectively.
As shown in fig. 2, as the retention time is prolonged, the removal rate of the river bed sludge on the gentamicin titer gradually increases, the removal rate of the gentamicin titer at 24 hours is 16.33%, the removal rate of the gentamicin titer at 48 hours is 21.65%, the removal rate of the gentamicin titer at 72 hours is 26.56%, the removal rate of the gentamicin titer at 96 hours is 36.11%, the removal rate of the gentamicin titer at 120 hours is 37.06%, the removal rate of the gentamicin titer at 144 hours is 37.17%, and the removal rate of the gentamicin titer at 168 hours is 38.02%. As can be seen from the data, the removal rate did not change much from 120 hours to 168 hours, thus indicating: the removal rate of gentamicin by riverbed sludge in the simulated aquatic plant purification pond is about 38.02 percent, and the removal rate of gentamicin titer given in the following experiments is calculated after subtracting 38.02 percent.
As shown in fig. 3, as the retention time is prolonged, the removal rate of COD by the river bed sludge gradually increases, and the 24-hour COD removal rate is 17.38%, the 48-hour COD removal rate is 29.54%, the 72-hour COD removal rate is 46.33%, the 96-hour COD removal rate is 49.22%, the 120-hour COD removal rate is 53.67%, the 144-hour COD removal rate is 57.12%, and the 168-hour COD removal rate is 58%. As can be seen from the data, the removal rate did not change significantly from 120 hours to 188 hours, thus indicating that: the removal rate of the riverbed sludge in the simulated aquatic plant purification pond to COD is about 58%, and the removal rate of COD given in the following experiments is calculated by subtracting 58%.
As shown in FIG. 4, the bed sludge is kept in NH for a longer time 3 Slightly increased-N removal rate, 24 hours NH 3 -N removal 2.3%,48 h NH 3 -N removal of 4.8%,72 h NH 3 -N removal 9.2%,96 h NH 3 -N removal 10.2%,120 h NH 3 -N division 14.55%,144 h NH 3 N removal 14.91%,168 hours NH 3 the-N removal rate was 14.92%. As can be seen from the data, the removal rate slowed from 72 hours to 188 hours, thus indicating: simulation of bed sludge pairs NH in aquatic plant purification ponds 3 The removal of-N was about 14.92%, NH given in the following experiment 3 The removal rate of-N was calculated by subtracting 14.92%.
As shown in fig. 5, the removal rate of the river bed sludge to TN slightly increased with the increase of the retention time, and the removal rate of TN was 3.0% for 24 hours, 5.7% for 48 hours, 10.6% for 72 hours, 11.9% for 96 hours, 15.3% for 120 hours, 16.0% for 144 hours, and 16.2% for 188 hours. As can be seen from the data, the removal rate did not change significantly from 72 hours to 168 hours, thus indicating: the removal rate of the riverbed sludge in the simulated aquatic plant purification pond to TN is about 16.2%, and the removal rate of TN given in the following experiments is calculated by subtracting 16.2%.
As shown in fig. 6, the removal rate of TP by the riverbed sludge slightly increased with the increase of the retention time, and the removal rate of TP was 43.11% for 24 hours, 45.27% for 48 hours, 50.77% for 72 hours, 60.38% for 96 hours, 60.71% for 120 hours, 60.83% for 144 hours, and 61.24% for 168 hours. As can be seen from the data, the removal rate slowed from 96 hours to 188 hours, thus indicating: the removal rate of TP by riverbed sludge in the simulated aquatic plant purification pond is about 61.24%, and the removal rate of TP given in the following experiments is calculated by subtracting 61.24%.
(2) Planting amount of Eichhornia Crassipes Hemsl on gentamicin titer, COD and NH 3 Influence of removal rates of-N, TN and TP
The method comprises the following steps: in the simulated aquatic plant purification pond simulation device, aquatic plants are planted on riverbed sludge at the bottom, and 1m is injected into the device 3 The prepared gentamicin-containing titer concentration is 20 mu/mL, the COD concentration is 227mg/L, and NH 3 The mixed wastewater had an N concentration of 14.4 mg/L, a TN concentration of 29.3 mg/L and a TP concentration of 3.6 mg/L. PlacingObserving at normal temperature, sampling 168 hours later to detect the potency, COD and NH of gentamicin 3 The results of the-N, TN, and TP indices are shown in FIGS. 7, 8, 9, 10, and 11.
The planting method comprises the following steps: planting 20 reeds, 20 cattail stems, 40 hydrilla verticillata, 15 curly pondweed and 20 hornworts on the area of each square meter; 0,5, 10, 15, 20, 25 and 30 eichhornia crassipes are planted respectively.
As shown in FIGS. 7, 8, 9, 10 and 11, when 5 Eichhornia crassipes were planted, the removal rate of gentamicin titer was 24.31%, the removal rate of COD was 27.66%, and the removal rate of NH was 27.66% with the increase of the number of Eichhornia crassipes planted 3 The removal rate of-N was 15.41%, the removal rate of TN was 20.33%, and the removal rate of TP was 17.3%. When the planting quantity of the water hyacinth reaches 20 plants respectively, the removal rate of the gentamicin titer is 70.69 percent, the removal rate of the COD is 83 percent, and the NH is added 3 The removal rate of-N was 75.04%, the removal rate of TN was 80.1%, and the removal rate of TP was 78.84%. As can be seen from the data, the effect on gentamicin titer, COD and NH is improved when more than 20 eichhornia crassipes are planted 3 The removal rates of various pollutant indexes of-N, TN and TP are basically in a stable state.
(3) The planting amount of reed is corresponding to the potency, COD and NH of gentamicin 3 Influence of-N, TN, TP removal Rate
The method comprises the following steps: in the simulated aquatic plant purification pond simulation device, aquatic plants are planted on riverbed sludge at the bottom, and 1m of aquatic plants are injected into the device 3 The prepared gentamicin-containing titer concentration is 20 mu/mL, the COD concentration is 227mg/L, and NH 3 The mixed wastewater had an N concentration of 14.4 mg/L, a TN concentration of 29.3 mg/L and a TP concentration of 3.6 mg/L. Placing the mixture at normal temperature for observation, sampling 168 hours later and detecting the potency, COD and NH of the gentamicin 3 The results of the indicators-N, TN and TP are shown in FIGS. 12, 13, 14, 15 and 16.
The planting method comprises the following steps: planting 20 Eichhornia Crassipes, 20 Typha orientalis, 40 hydrilla verticillata, 15 curly pondweed and 20 Goldfish algae in each square meter area; 0,5, 10, 15, 20, 25 and 30 reeds are planted in the reed respectively.
As shown in FIGS. 12, 13, 14, 15 and 16, the gentamicin potency was reduced when 5 reeds were planted with the increase in the number of reeds plantedThe removal rate is 35.24 percent, the COD removal rate is 34.83 percent, and NH is added 3 The removal rate of-N was 23.61%, the removal rate of TN was 30.22%, and the removal rate of TP was 33.6%. When the number of the reeds respectively planted reaches 15, the removal rate of the gentamicin titer is 80.22 percent, the removal rate of the COD is 86.54 percent, and the NH content is increased 3 The removal rate of-N was 79.68%, the removal rate of TN was 83.69%, and the removal rate of TP was 89.54%. The data show that the potency, COD and NH of the gentamicin are increased when more than 15 reeds are planted 3 The removal rates of various pollutant indexes of-N, TN and TP are basically in a stable state.
(4) The planting amount of the spike of cattail has the effect on the potency, COD and NH of the gentamicin 3 Influence of-N, TN, TP removal rates
The method comprises the following steps: in the simulated aquatic plant purification pond simulation device, aquatic plants are planted on riverbed sludge at the bottom, and 1m is injected into the device 3 The prepared gentamicin-containing titer concentration is 20 mu/mL, the COD concentration is 227mg/L, and NH 3 The mixed wastewater had an N concentration of 14.4 mg/L, a TN concentration of 29.3 mg/L and a TP concentration of 3.6 mg/L. Placing the mixture at normal temperature for observation, sampling 168 hours later and detecting the potency, COD and NH of the gentamicin 3 The results of the-N, TN, and TP indices are shown in FIGS. 17, 18, 19, 20, and 21.
The planting method comprises the following steps: planting 20 Eichhornia Crassipes, 20 Phragmites communis, 40 hydrilla verticillata, 15 curly pondweed and 20 hornworts on the area of each square meter; the cattail pollen is planted with 0,5, 10, 15, 20, 25 and 30 plants respectively.
As shown in FIGS. 17, 18, 19, 20 and 21, when 5 cattail sticks were planted with an increased number of cattail sticks, the removal rate of gentamicin titer was 37.38%, the removal rate of COD was 40.56%, and the removal rate of NH was 40.56% 3 The removal rate of-N was 36.12%, the removal rate of TN was 43.34%, and the removal rate of TP was 35.41%. When the number of the cattail pollen planted reaches 15, the removal rate of the gentamicin titer is 87.27 percent, the removal rate of COD is 84.11 percent, and NH is added 3 The removal rate of-N was 83.11%, the removal rate of TN was 85%, and the removal rate of TP was 87.33%. The data show that the rose apple can be used for controlling the potency, COD and NH of the gentamicin when more than 15 strains of the rose apple are planted 3 The removal rates of various pollutant indexes of-N, TN and TP are basically in a stable state.
(5) Planting amount of hydrilla verticillataTiter of mycin, COD, NH 3 Influence of-N, TN, TP removal Rate
The method comprises the following steps: in the simulated aquatic plant purification pond simulation device, aquatic plants are planted on riverbed sludge at the bottom, and 1m of aquatic plants are injected into the device 3 The prepared gentamicin-containing titer concentration is 20 mu/mL, the COD concentration is 227mg/L, and NH 3 The mixed wastewater had an N concentration of 14.4 mg/L, a TN concentration of 29.3 mg/L and a TP concentration of 3.6 mg/L. Placing the mixture at normal temperature for observation, sampling 168 hours later and detecting the potency, COD and NH of the gentamicin 3 The results of the-N, TN, and TP indices are shown in FIGS. 22, 23, 24, 25, and 26.
The planting method comprises the following steps: planting 20 Eichhornia Crassipes, 20 Phragmites communis, 40 Typha bars, 15 curly pondweed and 20 Goldfish algae in each square meter area; 0,5, 10, 15, 20, 25, 30, 35 and 40 strains of hydrilla verticillata are planted respectively.
As shown in FIGS. 22, 23, 24, 25 and 26, when 5 plants of hydrilla verticillata were planted with an increase in the number of hydrilla verticillata planted, the removal rate of gentamicin titer was 37.98%, the removal rate of COD was 42.33%, and NH was added 3 The removal rate of-N was 44.44%, the removal rate of TN was 50% and the removal rate of TP was 37.84%. When the number of the black algae planted reaches 30 respectively, the removal rate of the gentamicin titer is 85.39%, the removal rate of the COD is 84.64%, and the removal rate of the NH is 3 The removal rate of-N was 85.12%, the removal rate of TN was 86.13%, and the removal rate of TP was 84.27%. The data show that the effect on the gentamicin titer, COD and NH is improved when more than 30 hydrilla verticillata are planted 3 The removal rates of various pollutant indexes of-N, TN and TP are basically in a stable state.
(6) Amount of potamogeton crispus planted to gentamicin potency, COD, NH 3 Influence of-N, TN, TP removal rates
The method comprises the following steps: in the simulated aquatic plant purification pond simulation device, aquatic plants are planted on riverbed sludge at the bottom, and 1m of aquatic plants are injected into the device 3 The prepared gentamicin-containing titer concentration is 20 mu/mL, the COD concentration is 227mg/L, and NH 3 The mixed wastewater had an N concentration of 14.4 mg/L, a TN concentration of 29.3 mg/L and a TP concentration of 3.6 mg/L. Placing the mixture at normal temperature for observation, sampling 168 hours later and detecting the potency, COD and NH of the gentamicin 3 The indexes of-N, TN and TP, and the results are shown in the figure27. Fig. 28, 29, 30, and 31.
The planting method comprises the following steps: planting 20 plants of Eichhornia crassipes, 20 plants of Phragmites communis, 40 plants of spike of cattail, 15 plants of hydrilla verticillata and 20 plants of Goldfish algae in each square meter area; 0,5, 10, 15, 20, 25 and 30 potamogeton crispus are respectively planted.
As shown in figure 27, figure 28, figure 29, figure 30 and figure 31, when 5 potamogeton crispus L.var crispus L.is planted, the gentamicin titer removal rate is 35.32%, the COD removal rate is 40.44%, NH is added 3 The removal rate of-N was 35.63%, the removal rate of TN was 37.45% and the removal rate of TP was 29.21%. When the number of the potamogeton crispus is up to 15 respectively, the removing rate of gentamicin titer is 87.54%, the removing rate of COD is 85.34%, NH 3 The removal rate of-N was 87.39%, the removal rate of TN was 90%, and the removal rate of TP was 77.21%. The data show that when the curly pondweed is planted with more than 15 curly pondweed, the potamomycins titer, COD and NH can be treated 3 The removal rates of various pollutant indexes of-N, TN and TP are basically in a stable state.
(7) Planting amount of Goldfish algae to gentamicin titer, COD and NH 3 Influence of-N, TN, TP removal Rate
The method comprises the following steps: in the simulated aquatic plant purification pond simulation device, aquatic plants are planted on riverbed sludge at the bottom, and 1m of aquatic plants are injected into the device 3 The prepared gentamicin-containing titer concentration is 20 mu/mL, the COD concentration is 227mg/L, and NH 3 The mixed wastewater had an N concentration of 14.4 mg/L, a TN concentration of 29.3 mg/L and a TP concentration of 3.6 mg/L. Placing the mixture at normal temperature for observation, sampling 168 hours later and detecting the potency, COD and NH of the gentamicin 3 The results of the indicators-N, TN and TP are shown in FIGS. 32, 33, 34, 35 and 36.
The planting method comprises the following steps: planting 20 Eichhornia Crassipes, 20 Phragmites communis, 40 Typha orientalis, 15 hydrilla verticillata and 20 curly pondweed on each square meter; 0,5, 10, 15, 20, 25 and 30 strains of Goldfish algae are planted respectively.
As shown in FIGS. 32, 33, 34, 35 and 36, when 5 Goldfish algae were planted, the removal rate of gentamicin titer was 50.24%, the removal rate of COD was 35.56%, and the removal rate of NH was 35.56% as the number of Goldfish algae were increased 3 The removal rate of-N was 39.27%, the removal rate of TN was 40%, and the removal rate of TP was 37.28% of the total weight of the composition. When the quantity of the separately planted golden carp algae reaches 20 strains, the removal rate of the gentamicin titer is 89.18%, the removal rate of COD is 86.27%, and NH is added 3 the-N removal rate was 86.65%, the TN removal rate was 87.85%, and the TP removal rate was 80.99%. As can be seen from the data, the effect of the strain on gentamicin, COD and NH is improved when more than 20 strains of golden carp algae are planted 3 The removal rates of various pollutant indexes of-N, TN and TP are basically in a stable state.
In summary, through the above experiments, the removal effect of the waste water containing the gentamicin titer and other pollutants is ideal when the combination planting of the Eichhornia crassipes, the Phragmites communis, the Typha orientalis, the black alga, the curly pondweed and the Goldfish alga is adopted, and the best planting area is that 20 Eichia crassipes, 15 Phragmites communis, 15 Typha orientalis, 30 black alga, 15 curly pondweed and 20 Goldfish alga are planted on the area of each square meter.
(8) The optimum quantity of single-planted aquatic plants and the collocation and combination technology of various aquatic plants can be used for controlling the potency, COD and NH of gentamicin with the time 3 Influence of-N, TN, TP removal Rate
The method comprises the following steps: in the simulated aquatic plant purification pond simulation device, aquatic plants are planted on riverbed sludge at the bottom, and 1m of aquatic plants are injected into the device 3 The prepared gentamicin-containing titer concentration is 20 mu/mL, the COD concentration is 227mg/L, and NH 3 Mixed wastewater with N concentration of 14.4 mg/L, TN concentration of 29.3 mg/L and TP concentration of 3.6 mg/L. Placing the mixture at normal temperature for observation, sampling 168 hours later and detecting the potency, COD and NH of the gentamicin 3 The results of the-N, TN, and TP indices are shown in FIGS. 37, 38, 39, 40, and 41.
The planting method comprises the following steps: in each case over an area per square meter: a) Planting 20 eichhornia crassipes separately; b) Planting 15 reeds independently; c) Planting 15 cattail plants separately; d) Planting 30 hydrilla verticillata separately; e) Planting 15 curly pondweed plants separately; f) Planting 20 goldfish algae separately; g) Combining and planting 20 Eichhornia Crassipes, 15 Phragmites communis, 15 Typha streptaculum, 30 hydrilla verticillata, 15 curly pondweed and 20 hornworts.
As shown in fig. 37, 38, 39, 40 and 41, when 20 eichhornia crassipes, 15 reed, 15 cattail, 30 hydrilla verticillata, 15 water caltrop and 20 hornworts are planted separately, the gentamicin potency and the removal rate of other pollutants are slightly improved along with the extension of the retention time when the gentamicin potency and other pollutants are treated, but the removal rate is not high, and the removal rate of the gentamicin potency is 45.45%, 53.21%, 50.12%, 37.32%, 47.89% and 55.21% correspondingly and sequentially;
the removal rate of COD is 50.33%, 49.83%, 56.54%, 49.98%, 60.45% and 54% correspondingly;
NH 3 the removal rate of-N corresponds to 47.56%, 46.33%, 46.51%, 50%, 48.21%, 52% in sequence;
the removal rate of TN is correspondingly 50.12%, 47.68%, 48.65%, 53%, 51.54% and 54.54% in sequence;
the removal rates of TP are respectively 38.44%, 40.22%, 37.28%, 44%, 43.11% and 36.99%.
When the combination of 20 eichhornia crassipes, 15 reed, 15 cattail, 30 hydrilla verticillata, 15 curly pondweed and 20 goldfish algae is matched with an aquatic plant for purification treatment, the removal rate of the gentamicin titer and other pollutants is greatly higher than that of the single plant, the removal rate is gradually improved along with the extension of the retention time, the removal rate of the gentamicin titer reaches 88.38 percent, the removal rate of COD reaches 90.12 percent and NH is added in 168 hours 3 The removal rate of-N reaches 87.69%, the removal rate of TN reaches 90.12%, and the removal rate of TP reaches 88%.
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (5)

1. A method for treating waste water containing gentamicin potency and pollutants by using an aquatic plant purification pond is characterized in that eichhornia crassipes, reed, cattail, hydrilla verticillata, water caltrop and hornworts are planted in the aquatic plant purification pond to treat mixed waste water of domestic sewage and industrial waste water containing the gentamicin potency.
2. The method for treating wastewater containing gentamicin titers and pollutants by using an aquatic plant purification pond according to claim 1, characterized in that in the industrial wastewater, the concentration of the gentamicin titer is 35 μ/mL to 45 μ/mL;
in the domestic sewage, the COD is 220 mg/L-240 mg/L and the NH content is 3 N is 14 mg/L to 16 mg/L, TN is 28 mg/L to 32 mg/L, and TP is 3.5 mg/L to 4.0 mg/L.
3. The method for treating the wastewater containing the gentamicin titer and the pollutants by using the aquatic plant purification pond as claimed in claim 2, wherein the mixing ratio of the domestic sewage and the industrial wastewater containing the gentamicin titer is (1-2): 1.
4. The method for treating wastewater containing gentamicin titer and pollutants by using the aquatic plant purification pond as claimed in claim 1, wherein the planting number of the aquatic plants is: 17-23 Eichhornia crassipes, 12-18 Phragmites communis, 12-18 cattail pollen, 27-33 black alga, 12-18 curly pondweed and 17-23 hornwort are planted in each square meter.
5. The method for treating the wastewater containing the gentamicin titer and the pollutants by using the aquatic plant purification pond as claimed in claim 1, wherein the retention time of the mixed wastewater in the aquatic plant purification pond is 160 hours to 170 hours.
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US5843762A (en) * 1995-03-02 1998-12-01 Desert Energy Research, Inc. Method for the high yield, agricultural production of enteromorpha clathrata
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CN101811776A (en) * 2010-04-13 2010-08-25 南京大学 Method for processing aquaculture wastewater containing antibiotics by utilizing plant floating bed
CN106830576A (en) * 2017-04-12 2017-06-13 上海秦森园林股份有限公司 A kind of wetland purification system and its purification method
CN112830633A (en) * 2021-01-15 2021-05-25 上海水生环境工程有限公司 Method for synergistically purifying conventional and novel pollutants in water
CN114873862A (en) * 2022-05-31 2022-08-09 安徽新宇环保科技股份有限公司 Aquaculture effluent disposal system

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Publication number Priority date Publication date Assignee Title
US5843762A (en) * 1995-03-02 1998-12-01 Desert Energy Research, Inc. Method for the high yield, agricultural production of enteromorpha clathrata
CN101643716A (en) * 2009-07-31 2010-02-10 华北电力大学 Pseudomonas nitroreducens and application thereof
CN101811776A (en) * 2010-04-13 2010-08-25 南京大学 Method for processing aquaculture wastewater containing antibiotics by utilizing plant floating bed
CN106830576A (en) * 2017-04-12 2017-06-13 上海秦森园林股份有限公司 A kind of wetland purification system and its purification method
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