News
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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 -
Lianhua assists in water quality public interest litigation
Why is the Lianhua 5B-2H (V8) field portable measuring instrument favored by users everywhere? In 2019 alone, Chengdu procuratorial organs filed a total of 1,373 public interest litigation cases, an increase of 313% year-on-year. In order to further deepen the public int...Read more -
Portable water quality tester helps Lijiang City Ecological Environment Bureau
After the epidemic has stabilized, various localities have promoted the resumption of work and production in an orderly manner. From major national key projects to the home service industry that concerns people's lives, production and operation have been accelerated to m...Read more -
What to do about water quality monitoring in the COVID-19 epidemic?
Lianhua donated water quality testing equipment to help the COVID-19 pandemic to help the region resume work and production. Recently, the Ministry of Ecology and Environment issued the "Guiding Opinions on Coordinating the Prevention and Control of the Epidemic and Ecol...Read more
