Biological pollution has a bad influence on the running process of industrial ro water systems. It greatly reduces the role of membrane technology in water treatment. Study the formation of biological pollution in industrial reverse osmosis water system. Analyze the characteristics of non-oxidizing biocides. Take DBNPA as an example.


Biological Pollutants in Water from Reverse Osmosis

The development of commercial ro water system benefits from the polyamide composite reverse osmosis membrane. It reduces the industrial reverse osmosis system cost. Industrial ro water systemscan be widely used in water purification technology.

At the same time, reverse osmosis membrane began to be used in various fields. Especially in water treatment that contains microorganisms. However, how to control biological pollutants in water of reverse osmosis is an urgent problem.

1.How does biological pollution form in industrial ro water systems?

The formation process of biological pollution in reverse osmosis system can be divided into four stages.

① The formation of adsorption conditions on the membrane surface.

② The initial adhesion of organism to membrane.

③ The irreversible adhesion of organism to membrane surface.

④ The growth and reproduction of organisms.

If it develops to the fourth stage, the biological pollution in the reverse osmosis system can not be effectively controlled.

2. How to control biological pollution?

The common methods include physical method, chemical cleaning method and adding bactericide method. Different methods are compared as follows.

Physical method is through ultraviolet, ultrasonic, magnetic treatment. The advantage is that it is environmentally friendly. The disadvantage is that there is no continuous bactericidal effect and the effect is not ideal.

Chemical cleaning is a method after the occurrence of biological pollution. Moreover, it can not effectively control the recurrence of biological pollution.

The biocide method is the most cost-effective method to control bio pollution in reverse osmosis system.

There are two kinds of biocides: oxidizing biocides and non oxidizing biocides.

Oxidizing bactericides include Cl2, NaClO, O3, H2O2, etc. Among them, Cl2 and NaClO are widely used. However, polyamide reverse osmosis membrane has no oxidation resistance. After reverse osmosis water treatment, it is necessary to dechlorinate the water. This increases processing costs. And this method can not effectively avoid the recurrence of biological pollution. Therefore, the use of non oxidizing biocides for biological pollution control, the effect is better.

3. Performance of DBNPA, a non-oxidizing biocide.

The bactericidal rate of DBNPA was not affected by pH value in water. The intermediate and final products of DBNPA degradation meet the relevant environmental standards. They have no biological pollutants in water.Therefore, DBNPA has no pollution to ro water quality.

DBNPA can be used in RO system to kill and remove biological pollution before the fourth stage. The continuous operation of reverse osmosis system is guaranteed.

4. Conclusion.

The best time to control bio pollution is before the growth and reproduction of organisms. The use of non oxidizing fungicides can better inhibit the formation of biological pollution in reverse osmosis system. The above is about how to effectively control biological pollution in reverse osmosis system.

Study on Water Resistance of Polyacrylic Acid Zinc Complex Film Abstract: A method for synthesizing a polyacrylic acid zinc complex in a redox initiation system by aqueous solution polymerization. Its solubility in water, ammonia, and ammonia/water mixtures was tested. It was found to be insoluble in water but soluble in ammonia and ammonia/water mixtures. The […]

Wood Boiler Water Treatment Chemicals Wood boiler water treatment chemicals are mainly used in outdoor wood boilers. The outdoor wood boiler needs water to exchange and pass the heat. The heated water is generally circulated through insulated underground lines to a heating load, where the heat can be transferred from the water to various heat […]

So what is polyacrylic? Polyacrylic is a high-molecular-weight composite of acryl and polyacrylamide, usually derived from a polyacrylamide gel. The IUPAC name for polyacrylamide is poly | acrylamide gel. They can also be homologs of acrylamide or substituted with an allyl ester of monomeric polymer, allylene, or propylene glycol. Polyacrylic is thermoplastic, meaning that it […]

When is the last time you were shopping for products such as where to buy sodium polyacrylate from? If you are like most people, you will never run across this type of product in any store. If you run across it though, you may find yourself spending an exorbitant amount on the product. Polyacrylate, any […]

There are many polyaspartic acid manufacturers and suppliers on Google. Some of them are trading companies, and some are real manufacturers. They are also under the banner of manufacturers and have also done “factory field certification”. This is also the case in many B2B yellow pages. Therefore, the business license says that the manufacturer may […]

The basic types of papermaking fungicides are mainly divided into two categories: inorganic fungicides and organic fungicides. According to different action principles, inorganic fungicides can be divided into oxidized type and reduced type. The reducing bactericide has a bactericidal effect due to its reducibility. Such as sulfurous acid and its salts. Oxidizing fungicides use their […]

Abstract: Computational chemists have actually produced a unique, synthetic, three-stranded particle that operates just like a natural metalloenzyme, or an enzyme which contains metal ions. Enzymes are nature’s powerhouses. Discovered in the cells of all animals, plants, as well as every other living microorganism, they accelerate the chain reactions that activate countless organic functions– from […]

Benzotriazole Corrosion Inhibitor Analysis in the Action Mechanism Abstract: This post introduces the properties and mechanism of benzotriazole corrosion inhibitors. The synergistic action of benzotriazole and imidazole better illustrates the progress of the sustained release. Combined with the corrosion example of copper in sodium chloride solution to illustrate the corrosion inhibition of triazole compounds. Keywords: […]

Abstract: A water-soluble copolymer scale inhibitor was synthesized from acrylic acid (AA) and 2-acryloyl-2-methyl propane sulfonic acid (AMPS). The scale inhibition and dispersion properties of the copolymer were determined. The effects of monomer ratio, reaction temperature and molecular weight modifier on the scale inhibition performance of the copolymer were investigated. Keywords: sulfonic acid, copolymer, scale […]