Water treatment chemicals meaning
2020-12-29 13:27:04 jerry 304
Water treatment chemicals and water treatment chemicals, mainly refers to the use of industrial water treatment chemicals, including cooling water, boiler water, sewage, oil field water, industrial water treatment for scale inhibitor, corrosion inhibitor, dispersant, sterilization and algae killing agent, defoaming agent, flocculant, deoxidizing agent, regulator, sludge chelating agent. Water and wastewater treatment, coagulant and flocculant used is also included in the chemical water treatment. In addition, activated carbon and ion exchange resin is an important water treatment chemicals.
Water treatment chemicals - water treatment agent three categories of products
1 general chemicals: the original refers to the treatment of inorganic chemical products, such as aluminum sulfate, sulfuric acid, sodium hydroxide, sulfuric acid, etc..
The 2 water treatment chemicals: ion exchange resin and activated carbon, including inorganic polyaluminum chloride, lime, organic flocculant alum etc organic water treatment chemicals including (such as polyacrylamide, potassium sorbate, polyamine and poly quaternary ammonium salt);
The 3 formula chemicals: containing corrosion inhibitor, scale inhibitor, bactericide and combustion additives etc..
The development of the domestic water treatment
World water treatment agent sales in 1992 was $2837000000 (not including activated carbon, ion exchange resin, fuel additives and General inorganic coagulant), which America for $1479000000, $483000000 to $575000000 in Western Europe, japan. According to statistics, there are more than 500 America engaged in water treatment agent production and service company, which mainly technical service. Western water treatment market is mainly affected by the control of Usa Inc, the Western European countries only a few water treatment company. Organic polymer flocculant in Western Europe, especially the polyacrylamide product has certain advantages, coupled with the American powder production capacity is insufficient, the market is occupied in Western Europe, Western Europe, several companies from Japan manufacturers seized Korea and parts of the Middle East market. Japan is engaged in the water treatment agent production and technology services company also many, and the cooling water treatment agent manufacturing and technical services the company had more than 20.
China's water treatment technology began in the 50's, the introduction of chemical technology from the Soviet Union also has begun to use inorganic phosphate as water treatment agent. 70 years in the introduction of large chemical fertilizer unit also began to introduce the technology of water treatment, mainly is the introduction of USA Baez company's technology, the early 80's and from the America Nalco company introduced phosphate water treatment technology and T-225 alkaline water treatment formula Kurita company introduced from japan. On this basis, the development of water treatment technology and water treatment agent of domestic sewage treatment technology, starting from the primary treatment 60's, now most of the two stages of treatment, flocculant and coagulant from the 50's began production, but in the 60 years before the application in industrial production, 80's the development of a number of new agents. China's production of organic flocculant polyacrylamide series products, varieties with nonionic and anionic, cationic products rarely. The production of larger, more varieties of production plant in Shandong Kitagata Yoshimegumi chemical plant. By 2000, all kinds of water treatment agent in addition to individual species in the preparation of a breakthrough technology, has produced a variety of application is still in the leading position. The average annual growth rate of various varieties will be in 5%-6%.
The main classification
Organic phosphate (ester)
ATMP amino trimethylene phosphoric acid
HEDP hydroxy ethylidene two phosphoric acid (sodium)
EDTMP ethylene diamine tetramethylidene phosphoric acid
AEDP acetamidine radical ethylidene two phosphoric acid
Six alcohol phosphate ester
Unit alcohol phosphate
PBTC phosphoryl butane, -1, 2, 4- three carboxylic acid
HPA hydroxy phosphate acid
Poly carboxylic acid
PAA (Na) of sodium polyacrylate
PAA two (N-7319 two) acrylic acid copolymer
PAA three (T-225 three) acrylic acid copolymer
Acrylic acid maleic acid copolymer AA-MA
HPMA polymaleic anhydride
AA-VA acrylic vinyl acetate copolymer
AA-SA acrylic acid and sulfonated styrene copolymer
AA-AMPS acrylic acid and sulfonated copolymer of Acrylamide
Polymerization of phosphorus acid, Bromogeramine, Bromogeramine, two sulfur cyano methane (S15)
Two chlorophenol (G-4)
Poly quaternary ammonium salt
Polyacrylic acid sodium
Dioxygen phenyl biguanide ethyl formate
Two sodium dichloroisocyanurate
Two ethanolamine oleate soap
Benzene and three nitrogen thiazole
Toluene three temozolomide derivatives
1, 3- propanediol, two amide derivatives
Toluene three triazole
Non ion type
Poly two dimethyl diallyl ammonium chloride
High polymer flocculant, polyacrylamide PAM
Water treatment chemicals has strong turn a. According to the application purpose can be divided into two kinds of water treatment chemicals.
1 water purification: pH regulator, redox agent, adsorbent, activated carbon and ion exchange resin, coagulant and flocculant.
2 special industrial purpose: corrosion inhibitor, scale inhibitor, bactericide and algicide, softener, etc..
Compound water treatment agent is the main application forms, has the advantages of multiple functions, and easy application.