CN115047157B - Method for analyzing physical and chemical properties of garbage leachate - Google Patents
Method for analyzing physical and chemical properties of garbage leachate Download PDFInfo
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- CN115047157B CN115047157B CN202210676777.4A CN202210676777A CN115047157B CN 115047157 B CN115047157 B CN 115047157B CN 202210676777 A CN202210676777 A CN 202210676777A CN 115047157 B CN115047157 B CN 115047157B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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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
- C02F3/28—Anaerobic digestion processes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/34—Control of physical parameters of the fluid carrier of fluid composition, e.g. gradient
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C10/00—Computational theoretical chemistry, i.e. ICT specially adapted for theoretical aspects of quantum chemistry, molecular mechanics, molecular dynamics or the like
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
- G01N2030/324—Control of physical parameters of the fluid carrier of pressure or speed speed, flow rate
Abstract
The application belongs to the technical field of water quality treatment, and particularly relates to a method for analyzing physical and chemical properties of garbage leachate. According to the method for analyzing the physical and chemical properties of the water quality of the garbage leachate, the concentration and the hydrolyzable proportion data of suspended matters in the water inlet of the anaerobic tank are collected, the concentration ratio data of carbon, nitrogen and phosphorus in the water inlet and the water outlet of the anaerobic tank are collected, and the relationship model of the water quality characteristic and the suspended solid concentration is obtained by combining the collected data with the hydraulic load and the volume load, so that the physical and chemical effects of the water quality of the garbage leachate are reasonably evaluated according to the relationship model, and the reasonable proportion of the garbage leachate and inoculated sludge is achieved.
Description
Technical Field
The application belongs to the technical field of water quality treatment, and particularly relates to a method for analyzing physical and chemical properties of garbage leachate.
Background
The garbage leachate has the characteristics of complex composition, high organic pollutant content, large water quality change and the like, and the current treatment of the garbage leachate is mainly biological treatment.
Because the garbage leachate is mainly treated by adopting an IOC reactor, the concentration of suspended matters in the garbage leachate is higher (more than 10000 mg/l), and the garbage leachate contains high-concentration low-molecular fatty acid in the treatment process, the physical and chemical property analysis of the water quality of the garbage leachate is required, so that the normal operation of the reaction is ensured.
Therefore, based on the technical problems, a method for analyzing the physical and chemical properties of the garbage leachate is needed to be designed.
Disclosure of Invention
The application aims to provide a method for analyzing physical and chemical properties of garbage leachate.
In order to solve the technical problems, the application provides a method for analyzing physical and chemical properties of garbage leachate, which comprises the following steps:
collecting suspended matter concentration and hydrolyzable proportion data in the inlet water of the anaerobic tank;
collecting concentration ratio data of carbon, nitrogen and phosphorus in water inlet and water outlet of an anaerobic tank;
combining the hydraulic load and the volume load with the suspended matter concentration and the hydrolyzable proportion data and the concentration ratio data of carbon, nitrogen and phosphorus to obtain a relation model of water quality characteristics and suspended solid concentration;
and evaluating the physical and chemical effects of the garbage leachate water quality through the relation model.
Further, the suspension concentration and hydrolyzable ratio data include:
mixed liquor suspended solids concentration and mixed liquor volatile suspended solids concentration.
Further, the method for acquiring the concentration ratio data of carbon, nitrogen and phosphorus comprises the following steps:
COD, VFAs, alkalinity and pH, TN, TP, NH-N concentration in the inlet water and the outlet water of the anaerobic tank are detected.
Further, COD was measured by digestion colorimetric method.
Further, the concentration of VFAs was measured by high performance liquid chromatography.
Further, the alkalinity is measured by adopting hydrochloric acid standard solution; and
and measuring the pH value of the inlet water and the outlet water by a pH meter.
Further, TN was measured by the persulfate oxidation method.
Further, TP was measured by digestion-molybdenum-antimony resistance method.
Further, the Navier reagent method is used for measuring NH3-N.
Further, a first influencing factor of the non-biochemical part on the anaerobic treatment of the flocculent sludge is obtained from the suspended matter concentration and the hydrolyzability ratio data;
obtaining a second influencing factor for anaerobic fermentation of flocculent sludge according to the concentration ratio data of carbon, nitrogen and phosphorus; setting the hydraulic load as theta and the volume load as theta
The relation model isWhere α is an evaluation value.
The method has the beneficial effects that the method for analyzing the physical and chemical properties of the water quality of the landfill leachate has the advantages that the relationship model of the water quality characteristics and the suspended solid concentration is obtained by collecting the suspended matter concentration and the hydrolyzable proportion data in the water inlet of the anaerobic tank and the concentration ratio data of carbon, nitrogen and phosphorus in the water inlet and the water outlet of the anaerobic tank and combining the hydraulic load and the volume load through the collected data, so that the physical and chemical effects of the water quality of the landfill leachate are reasonably evaluated according to the relationship model, and the reasonable proportion of the landfill leachate to inoculated sludge is achieved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart showing a preferred embodiment of the method for analyzing the physicochemical properties of the water quality of a landfill leachate according to the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Examples
As shown in fig. 1, the embodiment provides a method for analyzing physical and chemical properties of garbage leachate, which comprises the following steps: collecting suspended matter concentration and hydrolyzable proportion data in the inlet water of the anaerobic tank; collecting concentration ratio data of carbon, nitrogen and phosphorus in water inlet and water outlet of an anaerobic tank; combining the hydraulic load and the volume load with the suspended matter concentration and the hydrolyzable proportion data and the concentration ratio data of carbon, nitrogen and phosphorus to obtain a relation model of water quality characteristics and suspended solid concentration; and evaluating the physical and chemical effects of the garbage leachate water quality through the relation model.
In the embodiment, the relation model of the water quality characteristic and the suspended solid concentration is obtained by collecting the suspended matter concentration and the hydrolyzable proportion data in the water inlet of the anaerobic tank and collecting the concentration ratio data of carbon, nitrogen and phosphorus in the water inlet and the water outlet of the anaerobic tank and combining the hydraulic load and the volume load through the collected data, so that the physical and chemical effects of the garbage leachate water quality are reasonably evaluated according to the relation model, and the reasonable proportion of the garbage leachate and the inoculated sludge is achieved.
In this embodiment, the suspension concentration and hydrolyzable ratio data include: mixed liquor suspended solids concentration and mixed liquor volatile suspended solids concentration.
In this embodiment, the data acquisition methods of Mixed Liquor Suspended Solids (MLSS) and mixed liquor volatile suspended solids concentration (MLVSS) include, but are not limited to, measurement using standard methods.
In this embodiment, the method for obtaining the concentration ratio data of carbon, nitrogen and phosphorus includes: COD, VFAs, alkalinity and pH, TN, TP, NH-N concentration in the inlet water and the outlet water of the anaerobic tank are detected. Specifically, the COD can be determined by digestion colorimetric method. TN was measured by the persulfate oxidation method. TP was measured by digestion-molybdenum antimony resistance. NH3-N was measured using Nahner reagent method. Specific methods of operation can be found in the handbook of Hash Water quality practicality (fifth edition).
In this example, the alkalinity in anaerobic fermentation refers to the total amount of substances in the fermentation broth that are capable of undergoing neutralization with strongly acidic substances. Alkalinity is mainly formed by the presence of bicarbonate, carbonate and hydroxide, and borates, phosphates and silicates also produce some alkalinity. Alkalinity can be titrated with hydrochloric acid standard. The hydrochloric acid consumed when the pH value is titrated to 4.4-4.5 by taking methyl orange as an indicator is the alkalinity of the methyl orange. The contents of the corresponding carbonate, bicarbonate and hydroxide ions can be calculated. And measuring the pH value of the water inlet and outlet by using a portable pH meter.
In this example, the specific method for quantitatively determining the concentration of VFAs by the high performance liquid chromatography method is as follows: the sample was centrifuged (12,000Xg, 10 min) and the supernatant after centrifugation was passed through a 0.45. Mu.M filter and 20. Mu.L was taken for analysis. The LC-MS instrument is Shimadzu LC-MS 2010, and the column is a Shim-pack VP-ODS 4.6mmID×150mm column. The detector was Shimadzu SPD-M20A, (Bio-Rad, hercules, calif., USA). The mobile phase was 5mmol/L H SO4 and the flow rate was 0.6mL/min.
In the embodiment, the first influencing factor gamma of the anaerobic treatment of the flocculent sludge by the non-biochemical part is obtained from the suspended matter concentration and the hydrolyzability ratio data 1 The method comprises the steps of carrying out a first treatment on the surface of the The second influencing factor gamma of anaerobic fermentation of flocculent sludge is obtained from the concentration ratio data of carbon, nitrogen and phosphorus 2 The method comprises the steps of carrying out a first treatment on the surface of the Setting the hydraulic load as theta and the volume load as thetaThe relation model is->Where α is an evaluation value.
In summary, the method for analyzing the physical and chemical properties of the water quality of the landfill leachate is characterized in that the concentration and the hydrolyzable proportion data of suspended matters in the water inlet of the anaerobic tank are collected, the concentration ratio data of carbon, nitrogen and phosphorus in the water inlet and the water outlet of the anaerobic tank are collected, and the relation model of the water quality characteristic and the suspended solid concentration is obtained by combining the collected data with the hydraulic load and the volume load, so that the physical and chemical effects of the water quality of the landfill leachate are reasonably evaluated according to the relation model, and the reasonable proportion of the landfill leachate and inoculated sludge is achieved.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, of the flowcharts and block diagrams in the figures that illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
With the above-described preferred embodiments according to the present application as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the description, but must be determined according to the scope of claims.
Claims (7)
1. A method for analyzing physical and chemical properties of garbage leachate is characterized by comprising the following steps:
collecting suspended matter concentration and hydrolyzable proportion data in the inlet water of the anaerobic tank;
collecting concentration ratio data of carbon, nitrogen and phosphorus in water inlet and water outlet of an anaerobic tank;
combining the hydraulic load and the volume load with the suspended matter concentration and the hydrolyzable proportion data and the concentration ratio data of carbon, nitrogen and phosphorus to obtain a relation model of water quality characteristics and suspended solid concentration;
evaluating the physical and chemical effects of the garbage leachate water quality through the relation model;
the suspended matter concentration and hydrolyzable ratio data include:
the concentration of suspended solids in the mixed liquor and the concentration of volatile suspended solids in the mixed liquor;
the method for acquiring the concentration ratio data of carbon, nitrogen and phosphorus comprises the following steps:
detecting COD, VFAs, alkalinity and pH, TN, TP, NH in water inlet and water outlet of anaerobic tank 3 -N concentration;
the first influencing factor gamma of non-biochemical part on anaerobic treatment of flocculent sludge is obtained from suspended matter concentration and hydrolytic proportion data 1 ；
The second influencing factor gamma of anaerobic fermentation of flocculent sludge is obtained from the concentration ratio data of carbon, nitrogen and phosphorus 2 ；
Setting the hydraulic load as theta and the volume load as theta
The relation model isWherein α is an evaluation value; and
the relation model evaluates the physical and chemical effects of the garbage leachate water quality so as to enable the garbage leachate to reach a reasonable proportion with the inoculated sludge.
2. The method for analyzing the physicochemical properties of the water quality of the landfill leachate according to claim 1, wherein,
COD was determined by digestion colorimetry.
3. The method for analyzing the physicochemical properties of the water quality of the landfill leachate according to claim 1, wherein,
the concentration of VFAs was measured by high performance liquid chromatography.
4. The method for analyzing the physicochemical properties of the water quality of the landfill leachate according to claim 1, wherein,
measuring alkalinity by adopting hydrochloric acid standard solution; and
and measuring the pH value of the inlet water and the outlet water by a pH meter.
5. The method for analyzing the physicochemical properties of the water quality of the landfill leachate according to claim 1, wherein,
TN was measured by the persulfate oxidation method.
6. The method for analyzing the physicochemical properties of the water quality of the landfill leachate according to claim 1, wherein,
TP was measured by digestion-molybdenum antimony resistance.
7. The method for analyzing the physicochemical properties of the water quality of the landfill leachate according to claim 1, wherein,
determination of NH Using Nahner reagent method 3 -N。
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Citations (3)
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| CN110467273A (en) * | 2019-08-27 | 2019-11-19 | 暨南大学 | The Ecotoxicology and biodegradability evaluation method of a kind of landfill leachate concentration liquid and its application |
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| CN114018902A (en) * | 2021-10-20 | 2022-02-08 | 上海市园林科学规划研究院 | Method for measuring total phosphorus, total potassium and total sodium of kitchen waste leachate |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467273A (en) * | 2019-08-27 | 2019-11-19 | 暨南大学 | The Ecotoxicology and biodegradability evaluation method of a kind of landfill leachate concentration liquid and its application |
| KR20210157593A (en) * | 2020-06-22 | 2021-12-29 | 세종대학교산학협력단 | System and method for management of Landfill leachate |
| CN114018902A (en) * | 2021-10-20 | 2022-02-08 | 上海市园林科学规划研究院 | Method for measuring total phosphorus, total potassium and total sodium of kitchen waste leachate |
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