While surfactants bring great convenience to people's life and industrial and agricultural production, they also pollute our environment. This is a worldwide problem, especially in our country, which should be paid more attention to. The quality of the solution is related to whether our country can take the road of sustainable development. According to relevant reports, the water pollution of my country's rivers and lakes, such as Huaihe River, Liaohe River, Songhua River, Chaohu Lake, Taihu Lake, and Dianchi Lake, has directly affected people's lives.
Among them, the pollution of Dianchi Lake has been proven to be caused by residents using a large amount of phosphorus-containing detergents. The water quality is severely eutrophic, and the clear and transparent lake water has become black and smelly. Sodium tripolyphosphate (Na5P3O10) is a commonly used detergent builder. It can form water-soluble complexes with calcium, magnesium, iron and other ions to soften water. It has a strong buffering effect within the range, adjusts the pH value, and ensures the washing effect. It is an ideal builder if not for staining reasons. In order to change this situation, the environmental protection department has taken measures to limit the production and sales of phosphorus-containing detergents.
Generally, the hydrophilic groups are polar groups, such as amino and sulfuric acid, and the hydrophobic groups are generally non-polar hydrocarbon chains. There are also some classifications of surfactants, which are divided into ionic surfactants, nonionic surfactants, amphoteric surfactants, compound surfactants, other surfactants and so on.
Surfactants are often used in industrial industries. For the use of active agents, most of them are used in the washing and textile industries. For all fine industrial industries, the use of surfactants cannot be separated. All our related industries, including the pharmaceutical industry, are inseparable from the use of surfactants, as well as the paper industry, which is also a field of the fine industry. In the paper industry, surfactants are also widely used.