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What is the principle of amperometric residual chlorine sensor?
With the improvement of people's living standards and the enhancement of environmental awareness, water quality and safety issues have attracted increasing attention. In order to ensure the safety of water supply, disinfectants are widely used, but excessive amounts of disinfectants are harmful to the human body. At this time, we need to use a residual chlorine sensor to monitor water quality. Residual chlorine sensor is a sensor used to monitor residual chlorine in water. The working principle...
What parameters of agricultural irrigation water need to be monitored?
Water resources are very precious, and agriculture is an important industry for the development of a country. Water has a very important impact on the quality and products of grain, cotton and vegetables. If sewage is used for irrigation, the quality of agriculture products will decrease, they will become perishable and difficult to store, and toxic substances in the crops will increase, which will cause harm to human body. Therefore, monitoring agriculture irrigation water can promote the...
What parameters should be monitored in swimming pools?
The swimming pool is a place for people to exercise and relax. Especially when the weather is hot, people like to go to the swimming pool. But for swimming pool water, it is very important to disinfect and replace the water regularly. People are also more concerned about water hygiene, which is closely related to human health. So waht indicators do we need to monitor for swimming pool water? The main indicators tested in swimming pools include: water temperature, turbidity, free chlorine, pH...
What is MLSS and how to measure MLSS of water quality?
Overview Activated sludge concentration refers to the suspended solids content of the mixed liquid at the outlet of the aeration tank, represented by the symbol MLSS, and its unit is mg/L. It is used to measure the amount of activated sludge in the aeration tank. The total amount of MLSS includes the following four aspects: active microorganisms, organic matter adsorbed on activated sludge that cannot be biodegraded; residues of microbial self-oxidation; and inorganic matter. So how to monitor...
What is COD and how to measure the COD in water?
COD is the abbreviation of chemical oxygen demand, which is the amount of oxidant consumed when a certain strong oxidant is used to treat water samples under certain conditions. It is an indicator of the amount of reducing substances in water. Reducing substances in water include various organic substances, nitrites, sulfides, ferrous salts, etc., but the main ones are organic substances. Therefore, chemical oxygen demand is often used as an indicator to measure the content of organic matter in...
What are the parameters for routine surface water monitoring?
surface water refers to the general term for dynamic water and static water on the land surface, including various liquid and solid water bodies, mainly rivers, lakes, swamps, glaciers, ice caps, etc.. It is one of the important sources of water for human life and a major component of water resources in various countries. Rivers are widely distributed, have rapid water renewal, and are easy to access. They have always been the main water source for human development and utilization. Lakes and...
What factors will affect the value of ORP in the water treatment process?
? Overview ORP has good application prospects in water quality treatment, circulating water treatment, desulfurization wastewater treatment, water treatment equipment, etc.. Since many redox reactions occur in wastewater treatment, and the factors that affect ORP in each reactor are also different, it is difficult to determine which factor is mainly responsible for the change in ORP. For example, there are many organic substances in the activated sludge treatment system. Large changes in the...
How to measure the water dissolved oxygen value?
? Overview Dissolved oxygen is a parameter that characterizes the concentration of oxygen in an aqueous solution. It is free oxygen dissolved in water. The unit of dissolved oxygen is mg/L, expressed in milligrams of oxygen per liter of water. The amount of dissolved oxygen in water is an indicator of the self-purification ability of water. High dissolved oxygen is conducive to the degradation of various pollutants in the water body, so that the water body can be purified faster; conversely,...
What does pH actually stand for?
What is pH and what does pH actually stand for? pH, also known as hydrogen ion concentraction index and pH value, is a scale of hydrogen ion activity in a solution and a measure of the acidity and alkalinity of the solution. The pH value actually stand for the concentraction of hydrogen ions. The concept of pH was first proposed by Danish biochemist S?ren Peter Lauritz S?rensen in 1909. p stands for the German potenz, meaning force or concentration, and H (hydrogen ion) stands for hydrogen ion...
What is turbidity and how is turbidity measured?
turbidity is a measure of the decrease in liquid transparency caused by the presence of light-scattering substances in the water. suspended and colloidal particles in water will scatter and absorb light passing through the sample. The scattering of light produces turbidity. Turbidity is characterized by the light scattering characteristics of particulate matter in the sample. The measurement result unit is NTU. Turbidity refers to the degree of obstruction caused by suspended solids in water...
What turbidity range is safe for drinking water?
turbidity refers to the degree of obstruction of a solution to the passage of light, which includes the scattering of light by suspended matter and the absorption of light by solute molecules. The turbidity of water is not only related to the content of suspended substances in the water, but also to their size, shape and refractive index. Turbidity is usually suitable for water quality determination of natural water, drinking water and some industrial water. So what is the safe range of...
What is the relationship between conductivity,TDS and salinity in water quality testing?
Overview Key Takeaways: Conductivity measures water's ability to conduct electricity (S/m) TDS (Total Dissolved Solids) indicates all dissolved substances in mg/L Salinity quantifies salt content, especially important in marine environments Delfino's instruments provide simultaneous measurement of all parameters Introduction to Water Quality Parameters Standards such as conductivity, TDS (Total Dissolved Solids), and salinity are fundamental metrics in water quality testing. Delfino's advanced...
Which industrial applications require monitoring of conductivity values?
Conductivity is one of the more commonly used and important water quality monitoring parameters. The conductivity of water refers to the degree to which the water in a target body of water can conduct electricity. The conductivity of water is measured by the degree of penetration of electricity into the water. In addition to being the basis for salinity and total dissolved solids calculations in most water bodies, conductivity values can also represent an early indicator of changes in water...
Application of ultrapure water equipment in the electronics industry
Ultrapure water is water produced by distillation, deionization, reverse osmosis technology or other appropriate supercritical fine technology for the purpose of developing ultrapure materials (semiconductor original materials, nanometer fine ceramic materials, etc.). Its resistivity is greater than 18MΩ.cm. , or close to 18.3MΩ.cm (25℃). Why does the electronics industry use ultrapure water equipment? Ultrapure water plays an increasingly important role in the production of electronic...
Welcome to Delfino--2024 IFAT Munich May 13-17
The Munich Environmental Protection Exhibition in Germany - IFAT MUNICH will be held from May 13 to 17, 2024 at the New International Expo Center in Munich, Germany. Founded in 1966, it is currently the world's largest professional environmental protection trade exhibition. As one of the important international exhibitions certified by UFI, it leads the latest trend in the international environmental protection industry and is recognized as a global benchmark in the industry. The exhibition is...
Welcome to Delfino--2024 ASIA WATER (Malaysia)
Asia water 2024 April 23-25 Kuala lumpur convention centre, Malaysia Region's leading water and wastewater event for developing Asia Exhibition introduction After 20 years of development, ASIA WATER has gradually become the most representative Asian water exhibition in the industry. The 2024 exhibition is strongly created by UBM, a well-known European exhibition group, and has received strong support from government departments. It is renowned as the first water exhibition in Asia. It has...
What is the measurement principle of the probe type ammonia nitrogen sensor?
Most of the excess ammonia nitrogen in water bodies is related to human activities, such as wastewater generated from industrial production, agricultural activities, and sewage treatment. If the high concentration of ammonia nitrogen in these wastewater is not treated or there is a problem in the treatment process, it will cause serious consequences if it is directly discharged. Ammonia nitrogen in natural water bodies exceeds the standard. In addition, when a large amount of organic matter...
How to install membrane-covered amperometric residual chlorine sensor in the flow cell?
Residual chlorine is one of the commonly used disinfectants. Monitoring the residual chlorine value can evaluate the disinfection effect during the water treatment process. Residual chlorine electrodes are usually used in various water quality treatment situations such as swimming pools, drinking water, water plants, medical institutions, industrial wastewater monitoring, etc. Daruifuno's residual chlorine sensor adopts a film-coated ampere system. There are three electrodes for monitoring...
How to properly install conductivity sensors in pipes?
Overview Conductivity is an important measure of ion concentration in water, making it essential to monitor in almost all types of water quality applications. Conductivity electrodes are widely used in drinking water, wastewater, groundwater, seawater, agricultural irrigation water, industrial process water, and more. According to water quality classification, there are ultrapure water, pure water, industrial water, sewage, concentrated liquid, etc. Different water qualities require the use of...
How to monitor the conductivity of hydrogen fuel cell coolant?
? Overview A hydrogen fuel cell is a device that generates electrical energy through the chemical reaction of hydrogen and oxygen. In order to ensure the uniformity of the temperature distribution of the fuel cell, the temperature difference between the inlet and outlet coolant generally does not exceed 10°C. For high-power fuel cells, the heat is generally taken away through specially treated water, and then dissipated through an external cooling device. Hydrogen fuel cells have strict...
What is the difference between COD and BOD and the connection?
Overview During the sewage treatment process, in order to ensure that the treated water reaches discharge standards, water quality is monitored at every step. According to the data from the water quality monitoring equipment, appropriate treatment methods are used to treat the water quality to the required range and enter the next treatment link. In the process of sewage treatment, COD and BOD are two very important indicators. So what is COD? What is BOD? What are their differences and...
How to monitor pH value during drinking water treatment process?
The drinking water treatment industry refers to the industry that treats raw water through various physical, chemical and biological methods to make it meet drinking water quality standards. This industry includes the selection of water sources, water quality testing, research on water treatment processes, manufacturing and sales of water treatment equipment, and production and supply of drinking water. The main purpose of drinking water treatment is to remove harmful substances in the water,...
How to choose ORP sensors and how to maintain ORP electrodes?
ORP is the oxidation-reduction potential, which is used to reflect the macroscopic oxidation-reduction properties of all substances in aqueous solution. The higher the redox potential, the stronger the oxidation, and the lower the redox potential, the stronger the reduction. A positive ORP value indicates that the solution exhibits certain oxidizing properties, and a negative ORP value indicates that the solution exhibits certain reducing properties. ORP sensors are used to measure the ability...
How to choose the suitable sludge sensor to measure sludge concentration?
Sludge concentration refers to the total amount of organic matter and inorganic matter in the sludge. It is one of the important parameters in the sludge treatment process. It can reflect the operation of the sludge treatment process and can control the changes of various parameters in the sludge treatment process. , so as to achieve the best effect of sludge treatment. The sludge concentration sensor is based on the combined infrared absorption and scattering light method. The infrared light...
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