Suspended solids, as the name implies, are particulate matter that floats freely in water, usually between 0.1 microns and 100 microns in size. They include but are not limited to silt, clay, algae, microorganisms, high molecular organic matter, etc., forming a complex picture of the underwater microcosm. Suspended solids in surface water and groundwater mostly originate from natural processes, such as silt carried by rivers and plankton in lakes; while suspended solids in urban sewage and industrial wastewater more reflect the impact of human activities, from dust on construction sites to fibers and plastic fragments discharged by factories, which constitute the reality of modern water pollution.
Methods for rapid detection of suspended solids mainly include the use of suspended solids meter, membrane/filter paper filtration method, centrifugal separation method, weighing method (calculation method) and qualitative dispersion analysis method. These methods have their own characteristics and are suitable for different detection needs and conditions.
1. Suspended matter measuring instrument: This is a simple and convenient measuring method. By converting the wavelength absorbance of the sample into data, the results are directly displayed on the LCD screen. It is suitable for quickly obtaining the measured value of suspended matter concentration.
2. Filter membrane/filter paper filtration method: This method involves placing the filter membrane or filter paper in a weighing bottle, drying it at a specific temperature and weighing it, and then pouring the water to be measured into the weighing bottle with the filter membrane or filter paper, filtering and drying it, and then weighing it. The content of suspended matter is determined by comparing the weight difference before and after.
3. Centrifugal separation method: Suspended matter is separated by centrifugal force and then measured. This method is simple to operate and the measured data is relatively accurate. It is one of the common suspended matter determination methods.
4. Weighing method (calculation method): This method requires the use of a filter membrane, which is similar to the membrane filtration method, but does not require a filtration process. The filter membrane with the sample is directly dried and weighed. It is suitable for quickly determining the content of suspended matter.
5. Qualitative dispersion analysis method: This is a more specific analysis method, which may involve more complex operation steps and equipment, and is suitable for situations that require more detailed analysis.
When choosing a suitable method, factors such as particle size, content, distribution and morphology, as well as the accuracy of the test and the convenience of operation need to be considered. By rationally selecting and applying these methods, the content of suspended matter in liquids or gases can be accurately evaluated and measured.
How important is it to quickly detect suspended matter in water?
Suspended matter not only affects the transparency and beauty of water bodies, but is also likely to become a carrier of harmful substances, threatening ecological balance and human health.
The importance of suspended matter detection in water:
1. Environmental assessment. Suspended matter in water is one of the important indicators for assessing water quality and ecosystem health. By using a suspended matter detector to detect the concentration and composition of suspended matter in water, the transparency, turbidity and nutrient load of water bodies can be assessed, and the degree of water pollution and the impact of environmental changes on the ecosystem can be understood.
2. Biological impact Suspended matter in water has a direct impact on the health and living conditions of aquatic organisms. High concentrations of suspended solids can cause insufficient light in the waters, affecting the photosynthesis of phytoplankton and the ecological functions of benthic organisms. In addition, suspended solids can also adsorb and transport toxic substances, causing damage to fish and other aquatic organisms.
3. Human health. Some suspended solids, such as toxic algae or extracellular substances of microorganisms, may pose a threat to human health. By monitoring suspended solids in water, especially those that may contain harmful microorganisms, potential health risks can be warned to ensure water safety and human health. Therefore, it is very necessary to configure a rapid suspended solids detector.
4. Agriculture and industry. Suspended solids in water also have an important impact on agricultural and industrial activities. Excessive suspended solids concentrations may affect irrigation water quality, reduce soil quality and yield. For industrial emissions, monitoring suspended solids in water can help track and control disturbances and pollution in wastewater discharges.
Therefore, it is crucial to ensure the accuracy and reliability of suspended solids detection. By calibrating the water quality suspended solids meter, the accuracy and consistency of the measurement results can be improved, providing a reliable basis for water environment management and water quality monitoring.
In summary, the purpose and significance of detecting suspended solids is not limited to understanding the water quality, but also includes protecting water resources, maintaining ecological balance, ensuring human health, and evaluating water quality. It is an indispensable part of water quality monitoring.
With the advancement of technology, more convenient and efficient solutions have been brought. The portable suspended solids meter LH-P3SS is an instrument developed and produced by Lianhua to detect the content of suspended solids in water. This water quality meter is widely used in the determination of suspended solids in sewage, environmental protection, steel, circulating water, chemical industry and other industries. This instrument adopts advanced spectrophotometric technology to automatically select the best wavelength, simplify the operation process, improve the detection accuracy, and greatly improve the work efficiency.
It is worth noting that the determination of suspended solids in water is far from a simple numerical game. It is related to the health of the ecological environment and human well-being. High levels of suspended solids not only reduce the self-purification capacity of water bodies, reduce the supply of dissolved oxygen in water, and pose a threat to aquatic ecosystems, but also increase the load on sewage treatment facilities and affect the efficiency and cost of sewage treatment. Therefore, close monitoring of suspended solids is not only a basic requirement for environmental protection, but also an important guarantee for sustainable development.
Post time: Jul-18-2024
