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abstract:
In recent years, with the gradual maturity of environmental protection in China, all walks of life have paid extensive attention to environmental pollution, especially water quality safety, which directly affects the normal life of the broad masses. In order to better protect the people's water safety and the harmonious development of ecological environment, it is necessary to strengthen the management and control of water quality testing, use scientific and advanced modern technical means, improve the accuracy and reliability of water quality testing data, and provide a solid technical guarantee for the people to use water safely. In view of this, this paper focuses on the specific application of biological detection technology in water quality detection.
Key words:
Biological detection technology; Water quality testing; Application: query;
Introduction:
Water is an important resource for human survival. The quality of water will not only affect people's life safety, but also affect the normal social production order. However, in recent years, the rapid development of industry and agriculture in China has inevitably aggravated the water pollution problem in China. In order to effectively improve this situation, it is necessary to strengthen the supervision of water quality testing, use scientific and advanced biological testing technology, improve the technical level of water quality testing, ensure the scientific and accurate results of water quality testing, and promote the smooth development of water quality testing.
1, the meaning and related characteristics of biological detection technology.
(1) The specific meaning of biological detection technology.
The significance of biological detection mainly refers to objectively reflecting the pollution and changes of the surrounding environment through some biological individuals and communities as an important reference for environmental quality detection. In recent years, influenced by various external factors, water resources in China have been seriously damaged. Because of its complex pollution sources, it needs scientific and advanced technical means to carry out comprehensive and in-depth detection and analysis. The advantage of biological detection technology is that it can fully display the water pollution effect in special environment and effectively make up for the shortcomings of traditional detection technology.
(2) Related characteristics of biological detection technology.
The related characteristics of biological detection technology can be analyzed by combining the following three points: First, compared with the specific application of physical and chemical detection, biological detection technology can comprehensively reflect the biological pollution situation in some specific areas, completely break the limitations of physical and chemical detection, and further improve the accuracy of water quality detection results. Secondly, for the specific application of instruments and equipment, some organisms are sensitive to pollutants, but instruments and equipment can not be accurately detected, which will inevitably affect the accuracy of detection data. Through the scientific application of biological detection technology, the reaction produced by trace pollutants can be fully demonstrated, and the corresponding damage effect can also be clearly demonstrated. Thirdly, in the whole ecosystem, in order to form the aggregation effect of trace toxic and harmful substances, the biological chain can be used to complete it. When it reaches the end of the food chain, the concentration of pollutants can be significantly increased, which provides an important reference for detection.
2. The basic situation of water quality testing and its influencing factors.
(1) General situation of water quality testing.
Water resource is not only an important resource for human survival, but also a valuable non-renewable resource. In recent years, China government departments have paid more and more attention to environmental protection while promoting economic development. With the extensive promotion of environmental protection, all walks of life have a new understanding of the concept of environmental protection. The important value of water quality detection is not only reflected in people's safe use of water, but also plays a very important role in the protection and research of ecological environment. Combined with the current actual situation, water quality testing has been widely used in various fields of society, which has a very important impact on promoting the harmonious development of society and ecological environment.
(2) Influencing factors of water quality testing.
The influencing factors of water quality detection are mainly reflected in the following three aspects: First, the specific influence of water sample sources. Considering the water quality testing link, if the testing personnel do not fully grasp the specific situation of the water sample source, they may make a wrong judgment on the solution and cannot effectively solve the water pollution problem in this area. Therefore, before the specific operation of water quality testing, the testing personnel must fully understand the water source and formulate appropriate solutions in combination with the actual situation. Secondly, it is the influencing factors for categories. When testing the water quality of water samples, it is necessary to choose the appropriate water quality testing method according to the different water quality, which requires the testing personnel to take the testing work seriously and implement specific testing operations in strict accordance with the relevant processes of testing work. In this regard, inspectors should analyze and study different water quality, make accurate judgments according to the differences of different water quality, and then use scientific and reasonable detection technology to detect the water quality of water samples, so as to ensure the accuracy of water quality detection data and make it an important reference for relevant departments to formulate solutions. Finally, in view of human factors, inspectors, as the most direct participants, occupy a very important position in the whole water quality testing process. In order to effectively avoid human error, it is necessary to strengthen the supervision of the whole detection process. Before testing, important items such as testing instruments, reagents, glassware, etc. need to be inspected in detail, and after everything meets the standards, the sampling work should be strictly regulated. When testing, it is necessary to ensure that the drugs used for testing are within the validity period, and the expired and deteriorated drugs must be replaced immediately, and the testing work should be completed within the specified time. In addition, for the whole detection process, the inspectors must standardize their actual operations in strict accordance with the detection standards, and at the same time ensure the accuracy and objectivity of the detection records, so as to fundamentally avoid the adverse impact of human error on the detection results.
3. The practical application of biological detection technology in water quality detection.
Specific application of (1) luminescent bacteria detection technology.
Photoluminescence bacteria detection technology can detect most toxic and harmful substances in water samples, so it is widely used in the detection of heavy metals and organic substances. However, in the specific detection process, the detection technology of luminescent bacteria also has some shortcomings such as complicated operation and large error. With the development of science and technology, electronic technology has improved the detection technology of luminescent bacteria, such as ultraviolet spectrophotometry and fluorescence spectrophotometry, which can effectively improve the quality and efficiency of water quality detection and ensure the accuracy and reliability of detection data.
(2) The specific application of biological behavior response detection technology.
The working principle of biological behavior response detection technology is mainly reflected in judging the specific situation of water pollution through the behavior response of organisms seeking advantages and avoiding disadvantages after being injured by pollutants, determining the safe concentration of water pollution, and then formulating reasonable and accurate early warning measures according to the actual pollution situation of water bodies. Biobehavioral response detection technology is usually used for the specific detection of fish, Daphnia and bivalve mollusks, while zebrafish is usually used for the specific detection of freshwater biological detection, mainly because zebrafish will react quickly in the case of water pollution, which provides a very important reference for water quality detection. In marine environment, bivalves are usually used to detect water pollution, while in fresh water environment, fish are usually used to complete the specific detection work. The distance change of mussel bivalves can be detected by electromagnetic induction technology. In addition, the movement of shellfish can be detected by high frequency electromagnetic induction system.
(3) The specific application of microbial community detection technology.
Microbial community detection technology usually calculates the distribution index accurately by detecting the species frequency and quantity of bacteria, fungi, protozoa and other microorganisms in water, combined with advanced electronic technology, and finally judges the degree of water pollution according to the specific value of the distribution index. With the all-round development of science and technology, the detection technology of microbial community has been improved, and the increase of detection and evaluation indicators is a good proof. The common detection and evaluation indexes are protozoan index, percentage of plant flagellates and singularity index. Through the rational application of biological detection technology, the level of water quality detection technology in China has been improved and promoted, which plays a very important role in protecting the ecological environment and providing high-quality water resources for the people. At the same time, with the development of microbial community detection technology, the practicability of mathematical analysis is gradually increasing. The combined application of mathematical analysis and computer technology has effectively expanded the detection range of microbial community parameter variation law, fully demonstrated the important value of microbial community detection technology, and has a very positive impact on improving the accuracy and reliability of detection data.
(4) Specific application of benthos and amphibians detection technology.
The main principle of benthic and amphibian detection technology is to detect water quality by using the appearance, disappearance and quantity of organisms in water. The detection parameters of benthos and amphibians mainly include BI index and community diversity index. Through the comprehensive detection of amphibian behavior and biological indicators, the overall quality of water can be evaluated, especially in the detection and development stage, and the environmental factors can be further summarized.
4. Explore the application prospect of biological detection technology in water quality detection.
Application of (1) molecular ecotoxicology in water pollution detection.
Molecular ecotoxicological detection technology is usually applied to the specific study of pollutants and their metabolites and intracellular macromolecular metabolism. After studying the target molecules, we can predict the basic situation of individuals, populations and communities. With the development of science and technology, the detection of cholinesterase activity in organisms is widely used in the detection of water pollution of seawater and fresh water resources.
(2) Application of genetic toxicology in water pollution detection.
The principle of genotoxicity detection is a detection technology to judge genotoxicity mainly by detecting the damage degree of DNA chain. Compared with micronucleus test operation, the effect of genotoxicity detection technology is more remarkable, mainly because single cell gel electrophoresis can accurately detect low-concentration toxic and harmful substances, and SOS color matching is another detection method of genotoxicity detection technology. Its specific working principle is that DNA molecules will be wrongly repaired under the interference of external damage and inhibition, and the reaction after gene poison treatment can be called SOS reaction. SOS detection method has the technical advantages of strong sensitivity and convenient operation.
5. Conclusion
Combined with the above discussion, we can see that with the rapid development of social economy, the scale of industry and agriculture has been increasing, which has aggravated the water pollution problem in China. Therefore, in order to effectively solve this problem, relevant departments must attach great importance to water quality testing. The scientific application of biological detection technology can further improve the efficiency and quality of water quality detection, provide high-quality water resources for people and promote the sustainable development of society and ecological environment on the basis of ensuring the accuracy of detection data.
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