Mine water sample water quality detection and quality evaluation method

Abstract

The invention provides a mine water sample water quality detection quality evaluation method, and relates to the technical field of water quality detection, and the method comprises the following steps: 1) collecting a mine water sample; 2) preparing a mine water sample; 3) measuring the content of main mineral substances in the mine water; 4) measuring the PH value and the conductivity of the mine water; (5) detecting vitamins and trace elements; 6) detecting microbial pollution in the mine water; 7) comprehensively evaluating the mine water; by adopting a proper detection method, various indexes in the mineral water can be accurately determined, and the rapidity and the standard reaching property of the mineral water during treatment are ensured; meanwhile, the water quality of the mine water is continuously monitored and evaluated, potential safety hazards can be found and solved in time, and the quality reliability and safety of recycling of mine water resources are ensured; the problem that the water quality of mine water needs to be detected before the mine water is treated and discharged is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of water quality detection, and more specifically, particularly relates to a method for evaluating the quality of mine water sample water quality detection. Background Art

[0002] Mine water is a by-product of mineral resource mining and an important unconventional water. Mine water will flow to the shaft and working face during mine construction and production. These waters come from atmospheric precipitation, surface water, groundwater, etc. In the coal mining process, physical, chemical and biochemical reactions occur in contact between coal seams and rock formations. The water often contains suspended matter and organic pollutants. Untreated mine water discharge and leakage can cause surface soil erosion, salinization, vegetation withering, etc. At the same time, mine water is a precious resource. The implementation of mine water resource utilization is of great significance to protecting the environment and saving water resources. It is also an inevitable requirement for building a resource-saving and environmentally friendly society.

[0003] Therefore, before the mine water is discharged and utilized as a resource, the water quality of the mine water needs to be tested in order to facilitate the treatment of the mine water. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a method for evaluating the quality of mine water samples to solve the problem that the water quality of mine water needs to be tested before the mine water is treated and discharged, so as to facilitate the treatment of the mine water.

[0005] The purpose and efficacy of the mine water sample water quality detection quality evaluation method of the present invention are achieved by the following specific technical means:

[0006] A method for evaluating the quality of a mine water sample comprises the following steps:

[0007] 1). Collect mine water samples; first, prepare the mine water samples to be tested, and ensure the freshness and cleanliness of the samples. Use a sampling bottle to sample the mine water to be tested;

[0008] 2). Prepare and process the mine water samples; process the sampled mine water samples, including filtering, centrifuging and dissolving, to ensure the accuracy and reliability of the test results;

[0009] 3). Determine the main mineral content in mine water;

[0010] 3.1) Water quality testing method:

[0011] Mineral ion detection needs to be based on scientific analysis. The ions rich in mines should be studied, and then the ion or molecular content in mine water should be studied, and a unified analysis should be performed on them. In addition, the total concentration of cations or anions in mine water can also explain the mineralization degree of mine water in the area. In judging low-mineralized water, it is necessary to judge in this way: study the HCO3 content in mine water - , Ca 2+ Mg 2+ The content of these mineral elements can be judged as low-mineralized water; study whether the water quality contains high SO4 2- It is the standard for determining the mineralization of water; in addition, the concentration of Cl in water is studied. - It is the criterion for determining high mineralized water; in the specific study of mineral content, it is also necessary to calculate it in a fixed way:

[0012] e(%)=∑k-∑A / ∑k+∑Ax100%

[0013] In the formula, ∑k is the total amount of cations; ∑A is the total amount of anions; e is the mineral content;

[0014] 3.2). Calculation method of mine water hardness:

[0015] The hardness of mine water is usually expressed in terms of Ca 2+ With Mg 2+ The total concentration of Ca in water is expressed as 2+ With Mg 2+ The relationship between the total hardness of water and the Ca content is very close, so to analyze the cause of the change in water hardness, the state equation should be used to compare the total hardness of water with Ca content. 2+ With Mg 2+ Perform correlation analysis; calculate and find that Mg 2+ Correlation of r1 and Ca to total hardness 2+ The correlation degree is r2. By comparing r1 and r2, we can determine the main factors causing the change in total hardness. At the same time, the hardness of water will change with Mg 2+ Therefore, by calculating the Ca 2+ With Mg 2+ The concentration of can directly give its total hardness;

[0016] 3.3) Calculation method of mine water mineralization:

[0017] The calculation of hardness is usually expressed by the sum of various salts in water. Hardness is mainly formed by the combination of all cations and anions in water. The change of main ion components is closely related to the mineralization of mine water. The change of mine water mineralization will directly affect its change. The main ion component of low mineralized water is HCO3 - Mg 2+ , Ca 2+ ;Cl - It is the main ion component of highly mineralized water; the anions in medium mineralized water are mainly SO4 2- Mainly; because the solubility of various salts in water varies greatly, in order from large to small, chlorides are the most soluble, followed by sulfates, and carbonates are the least soluble; analyze SO4 2- 、HCO3 - , Cl - Mg 2+ , Ca 2+ The correlation degree of mineralization index is r3, r4, r5, r6, and r7 respectively; by comparing r3, r4, r5, r6, and r7, the main factors affecting mineralization are obtained;

[0018] The above method can accurately measure the content of various minerals in mine water, record the measurement results, and judge the hardness and mineralization of mine water.

[0019] 4). Determine the pH value and conductivity of mine water; pH value and conductivity are important indicators for measuring the acidity and conductivity of mine water. They are measured by pH meter and conductivity meter to determine whether the pH value and conductivity of mine water meet the standard requirements, and record the measurement results;

[0020] 5) Test for vitamins and trace elements: Mine water may also contain some vitamins and trace elements, which are also important for human health. They can be tested using high performance liquid chromatography and gas chromatography-mass spectrometry, and the test results should be recorded;

[0021] 6). Detect microbial contamination in mine water; microbial contamination is a key factor in mine water quality issues, which may cause mine water to deteriorate and become unclean. Use culture medium cultivation method and PCR technology to perform microbial detection to ensure the hygiene and safety of mine water, and record the microbial detection results;

[0022] 7). Comprehensively evaluate the mine water; through the above-mentioned detection methods, obtain the various index data of the mine water, conduct a comprehensive evaluation of the quality of the mine water, and determine whether it meets the national standards and safety requirements.

[0023] The present invention has at least the following beneficial effects:

[0024] The present invention adopts appropriate detection methods to accurately measure various indicators in mineral water, ensuring its rapidity and compliance with standards during treatment; at the same time, continuous monitoring and evaluation of mine water quality can timely discover and resolve potential safety hazards, ensuring the quality reliability and safety of mine water resource reuse. DETAILED DESCRIPTION

[0025] The following examples are used to further describe the embodiments of the present invention. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] Example:

[0027] The present invention provides a method for evaluating the quality of a mine water sample, comprising the following steps:

[0028] 1). Collect mine water samples; first, prepare the mine water samples to be tested, and ensure the freshness and cleanliness of the samples. Use a sampling bottle to sample the mine water to be tested;

[0029] 2). Prepare and process the mine water samples; process the sampled mine water samples, including filtering, centrifuging and dissolving, to ensure the accuracy and reliability of the test results;

[0030] 3). Determine the main mineral content in mine water;

[0031] 3.1) Water quality testing method:

[0032] Mineral ion detection needs to be based on scientific analysis. The ions rich in mines should be studied, and then the ion or molecular content in mine water should be studied, and a unified analysis should be performed on them. In addition, the total concentration of cations or anions in mine water can also explain the mineralization degree of mine water in the area. In judging low-mineralized water, it is necessary to judge in this way: study the HCO3 content in mine water - , Ca 2+ Mg 2+ The content of these mineral elements can be judged as low-mineralized water; study whether the water quality contains high SO4 2- It is the standard for determining the mineralization of water; in addition, the concentration of Cl in water is studied. - It is the criterion for determining high mineralized water; in the specific study of mineral content, it is also necessary to calculate it in a fixed way:

[0033] e(%)=∑k-∑A / ∑k+∑Ax100%

[0034] In the formula, ∑k is the total amount of cations; ∑A is the total amount of anions; e is the mineral content;

[0035] 3.2). Calculation method of mine water hardness:

[0036] The hardness of mine water is usually expressed in terms of Ca 2+ With Mg 2+ The total concentration of Ca in water is expressed as 2+ With Mg 2+ The relationship between the total hardness of water and the Ca content is very close, so to analyze the cause of the change in water hardness, the state equation should be used to compare the total hardness of water with Ca content. 2+ With Mg 2+ Perform correlation analysis; calculate and find that Mg 2+ Correlation of r1 and Ca to total hardness 2+ The correlation degree is r2. By comparing r1 and r2, we can determine the main factors causing the change in total hardness. At the same time, the hardness of water will change with Mg 2+ Therefore, by calculating the Ca 2+ With Mg 2+ The concentration of can directly give its total hardness;

[0037] 3.3) Calculation method of mine water mineralization:

[0038] The calculation of hardness is usually expressed by the sum of various salts in water. Hardness is mainly formed by the combination of all cations and anions in water. The change of main ion components is closely related to the mineralization of mine water. The change of mine water mineralization will directly affect its change. The main ion component of low mineralized water is HCO3 - Mg 2+ , Ca 2+ ;Cl - It is the main ion component of highly mineralized water; the anions in medium mineralized water are mainly SO4 2- Mainly; because the solubility of various salts in water varies greatly, in order from large to small, chlorides are the most soluble, followed by sulfates, and carbonates are the least soluble; analyze SO4 2- 、HCO3 - , Cl - Mg 2+ , Ca 2+ The correlation degree of mineralization index is r3, r4, r5, r6, and r7 respectively; by comparing r3, r4, r5, r6, and r7, the main factors affecting mineralization are obtained;

[0039] The above method can accurately measure the content of various minerals in mine water, record the measurement results, and judge the hardness and mineralization of mine water.

[0040] 4). Determine the pH value and conductivity of mine water; pH value and conductivity are important indicators for measuring the acidity and conductivity of mine water. They are measured by pH meter and conductivity meter to determine whether the pH value and conductivity of mine water meet the standard requirements, and record the measurement results;

[0041] 5) Test for vitamins and trace elements: Mine water may also contain some vitamins and trace elements, which are also important for human health. They can be tested using high performance liquid chromatography and gas chromatography-mass spectrometry, and the test results should be recorded;

[0042] 6). Detect microbial contamination in mine water; microbial contamination is a key factor in mine water quality issues, which may cause mine water to deteriorate and become unclean. Use culture medium cultivation method and PCR technology to perform microbial detection to ensure the hygiene and safety of mine water, and record the microbial detection results;

[0043] 7). Comprehensively evaluate the mine water; through the above-mentioned detection methods, obtain the various index data of the mine water, conduct a comprehensive evaluation of the quality of the mine water, and determine whether it meets the national standards and safety requirements.

[0044] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0045] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A method for evaluating the quality of mine water samples, characterized in that: The following steps are involved: 1). Collect mine water samples; first, prepare the mine water samples to be tested, and ensure the freshness and cleanliness of the samples. Use a sampling bottle to sample the mine water to be tested; 2). Prepare and process the mine water samples; process the sampled mine water samples, including filtering, centrifuging and dissolving, to ensure the accuracy and reliability of the test results; 3). Determine the main mineral content in mine water; 3.1) Water quality testing method: Mineral ion detection needs to be based on scientific analysis. The ions rich in mines should be studied, and then the ion or molecular content in mine water should be studied, and a unified analysis should be performed on them. In addition, the total concentration of cations or anions in mine water can also explain the mineralization degree of mine water in the area. In judging low-mineralized water, it is necessary to judge in this way: study the HCO3 content in mine water - , Ca 2+ Mg 2+ The content of these mineral elements can be judged as low-mineralized water; study whether the water quality contains high SO4 2- It is the standard for determining the mineralization of water; in addition, the concentration of Cl in water is studied. - It is the criterion for determining high mineralized water; in the specific study of mineral content, it is also necessary to calculate it in a fixed way: e(%)=∑k-∑A / ∑k+∑Ax100% In the formula, ∑k is the total amount of cations; ∑A is the total amount of anions; e is the mineral content; 3.2). Calculation method of mine water hardness: The hardness of mine water is usually expressed in terms of Ca 2+ With Mg 2+ The total concentration of Ca in water is expressed as 2+ With Mg 2+ The relationship between the total hardness of water and the Ca content is very close, so to analyze the cause of the change in water hardness, the state equation should be used to compare the total hardness of water with Ca content. 2+ With Mg 2+ Perform association analysis; calculate and find that Mg 2+ Correlation of r1 and Ca to total hardness 2+ The correlation degree is r2. By comparing r1 and r2, we can determine the main factors causing the change in total hardness. At the same time, the hardness of water will change with Mg 2+ Increased with the increase of content; Therefore, by calculating the Ca in mine water 2+ With Mg 2+ The concentration of can directly give its total hardness; 3.3) Calculation method of mine water mineralization: The calculation of hardness is usually expressed by the sum of various salts in water. Hardness is mainly formed by the combination of all cations and anions in water. The change of main ion components is closely related to the mineralization of mine water. The change of mine water mineralization will directly affect its change. The main ion component of low mineralized water is HCO3 - Mg 2+ , Ca 2+ ;Cl - It is the main ion component of highly mineralized water; the anions in medium mineralized water are mainly SO4 2- Mainly; because the solubility of various salts in water varies greatly, in order from large to small, chlorides are the most soluble, followed by sulfates, and carbonates are the least soluble; analyze SO4 2- 、HCO3 - , Cl - Mg 2+ , Ca 2+ The correlation degree of mineralization index is r3, r4, r5, r6, and r7 respectively; by comparing r3, r4, r5, r6, and r7, the main factors affecting mineralization are obtained; The above method can accurately measure the content of various minerals in mine water, record the measurement results, and judge the hardness and mineralization of mine water. 4). Determine the pH value and conductivity of mine water; pH value and conductivity are important indicators for measuring the acidity and conductivity of mine water. They are measured by pH meter and conductivity meter to determine whether the pH value and conductivity of mine water meet the standard requirements, and record the measurement results; 5) Test for vitamins and trace elements: Mine water may also contain some vitamins and trace elements, which are also important for human health. They can be tested using high performance liquid chromatography and gas chromatography-mass spectrometry, and the test results should be recorded; 6). Detect microbial contamination in mine water; microbial contamination is a key factor in mine water quality issues, which may cause mine water to deteriorate and become unclean. Use culture medium cultivation method and PCR technology to perform microbial detection to ensure the hygiene and safety of mine water, and record the microbial detection results; 7). Comprehensively evaluate the mine water; through the above-mentioned detection methods, obtain the various index data of the mine water, conduct a comprehensive evaluation of the quality of the mine water, and determine whether it meets the national standards and safety requirements.