News
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What are the methods of sewage environmental monitoring?
What are the methods of sewage environmental monitoring? Physical detection method: mainly used to detect the physical properties of sewage, such as temperature, turbidity, suspended solids, conductivity, etc. Commonly used physical inspection methods include specific gravity method, titration me...Read more -
Turbidity Measurement
Turbidity refers to the degree of obstruction of the 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 a...Read more -
Biochemical Oxygen Demand VS Chemical Oxygen Demand
What is Biochemical Oxygen Demand (BOD)? Biochemical Oxygen Demand (BOD) Also known as biochemical oxygen demand. It is a comprehensive index indicating the content of oxygen-demanding substances such as organic compounds in water. When the organic matter contained in the water is in contact wit...Read more -
Six treatment methods for sewage high COD
At present, the typical wastewater COD exceeds the standard mainly includes electroplating, circuit board, papermaking, pharmaceutical, textile, printing and dyeing, chemical and other wastewater, so what are the treatment methods for COD wastewater? Let’s go and see together. Wastewater CO...Read more -
What are the harms of high COD content in water to our lives?
COD is an indicator that refers to the measurement of the content of organic substances in water. The higher the COD, the more serious the pollution of the water body by organic substances. Toxic organic matter entering the water body not only harms organisms in the water body such as fish, but a...Read more -
New Product Launch: Dual block reactor LH-A220
LH-A220 presets 15 kinds of digestion modes, and supports custom mode, which can digest 2 indicators at the same time, with a transparent anti-splash cover, with voice broadcast and time reminder function. High-quality materials: the upper end of the digestion module is equipped with an aviation ...Read more -
Best Invitation: IE EXPO China 2023
Dear Customers, Our company Lianhua(F17, Hall E4, April 19-21) will participate in the IE expo China 2023. At this final grand event of environmental technology event in 2023, we will show our best and most cutting-edge products and technologies. We look forward to have conversations with industr...Read more -
How to quickly judge the concentration range of COD water samples?
When detecting COD, when we get an unknown water sample, how to quickly understand the approximate concentration range of the water sample? Taking the practical application of Lianhua Technology’s water quality testing instruments and reagents, knowing the approximate COD concentration of the wa...Read more -
Accurately and quickly detect the residual chlorine in water
Residual chlorine refers to that after chlorine-containing disinfectants are put into water, in addition to consuming a part of the amount of chlorine by interacting with bacteria, viruses, organic matter, and inorganic matter in the water, the remaining part of the amount of chlorine is called r...Read more -
Mercury-free differential pressure BOD analyzer(Manometry)
In the water quality monitoring industry, I believe that everyone should be fascinated by the BOD analyzer. According to the national standard, BOD is the biochemical oxygen demand. Dissolved oxygen consumed in the process. Common BOD detection methods include activated sludge method, coulometer...Read more -
Looking at the logo changes of Lianhua Technology, we can see the way of brand development in the past 40 years
2022 is the 40th anniversary of Lianhua Technology. In the course of 40 years of development, Lianhua Technology has gradually realized that it needs a "symbol" to carry the initial intention of the enterprise, explain the significance of the enterprise's existence, conv...Read more -
Lianhua’s promise, inspection promise
Lianhua providing good service, maintains instruments for customers free of charge and solves technical problems On the occasion of the 40th anniversary of Lianhua, we planned and held a series of activities to thank and give back to customers, and thank the Chinese wate...Read more
