Many users of laboratory water purifiers will encounter a problem, that is, they will find green "contaminants" in the PP cotton in the transparent pre-filter sleeve or in the pure water pipeline connected to the pre-filter and equipment! How is this going? Is the quality of the pre-filter material not enough?
This phenomenon is actually independent of the quality of the pre-filtered product!
The green "contaminant" is moss. Moss is an algae that is a relatively low-grade plant, not a bacterium, no toxicity, or a harmful substance. Algae spores are often found in the air in the office or in the home environment, especially where moist and close to green plants often have moss spores. Algae are light-energy autotrophic organisms that contain chlorophyll. They are easy to use photosynthesis of water, minerals and carbon dioxide under the conditions of light and suitable temperature, synthesize the organic matter necessary for algae, and use it as a basis for breeding and derivation. And then form moss.
The environment is the main cause of the problem of moss:
1. Air and tap water often contain moss spores that are invisible to the naked eye (green plants in some environments release green algae spores), and these sources of pollution, in suitable conditions, are easily chemically reacted with minerals in the water. .
2. Photosynthesis is required for the growth and reproduction of moss. The photosynthesis requires trace elements such as Ca 2+ and Mg 2+ to be carried out normally. The mineral elements in the water constitute the nutrients for algae growth and reproduction.
According to relevant literature reports: algae growth requires potassium, calcium, manganese, dozens of minerals and trace elements, using different waters as algae cultivation water, found that mineral water is rich in minerals and trace elements to make algae grow faster, pure Water does not grow green algae. It can be seen that minerals are an essential condition for algae growth and an important source of nutrients.
3. Objects that come into contact with water, placed in direct sunlight, high temperatures, or humid places, are prone to grow moss. There are two reasons for this: a) the increase in water temperature caused by light, which promotes the decomposition of residual chlorine in tap water. Residual chlorine has the effect of inhibiting the growth of algae, and its decomposition provides a prerequisite for the growth of algae. b) Algae are autotrophic, growth and reproduction must have photosynthesis, and illumination provides this chemical reaction. may. If there is no light, chlorophyll cannot be synthesized, and moss cannot grow and reproduce.
4. Poor water quality can also cause moss growth. Tap water generally contains two minerals, nitrogen and phosphorus, which are conditions for the growth of algae.
Moss is grown on pre-filtered tubing or PP cotton in laboratory pure water equipment because its role is mainly to filter sediment, particulate matter, not to filter bacteria. Moss spores accumulate in tap water and grow and reproduce under light and other conditions, resulting in pre-filtration and green matter in the pipeline. Although these mosses are non-toxic, they have no significant impact on the quality of the produced water, but the purification of the equipment will bring unnecessary waste, loss of pure water consumables and shorten the service life.
How to avoid the growth of moss? In fact, it is very simple, as long as you avoid direct sunlight, do not store heat directly. The emergency treatment plan can consider a layer of tin foil on the pre-filter equipment and the plastic pipe, and shield the water pipe to achieve the purpose of light insulation. If it needs to be effectively avoided, it can be replaced with pre-filtered products with reasonable design, light protection and good sealing. For example, RephiTEKT produced by Lefeng has an opaque material and blocks sunlight , which can eliminate the growth of moss once and for all.
About Shanghai Lefeng Biotechnology Co., Ltd.
Shanghai Lefeng specializes in the development, design and manufacture of high-end water purification and laboratory separation and purification products, and is committed to providing cutting-edge, high value-added innovative products for life sciences and biotechnology. The Lefeng product line includes laboratory pure water systems, Millipore pure water compatible consumables and laboratory separation and purification products. Established ten years ago, Lefeng created its own brand RephiLe (Ruifeng), with more than 30 patents and multiple software copyrights. Products are sold to nearly 90 countries and regions around the world.
For more information on RephiLe products, please visit:
RephiLe Enterprise WeChat Name: Lefeng Pure Water
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