Reverse osmosis cleaning agent
Reverse osmosis cleaning agent
Reverse osmosis membrane cleaner is a homogeneous compound mixture composed of chelating agents, dispersants, surfactants, corrosion inhibitors and deionized water. It exists in liquid form and is stable under normal storage conditions, with no delamination or sediment. The acidic formula can dissolve carbonate scale, metal oxide scale and hydroxide scale on the RO membrane surface. The alkaline formula can saponify grease, decompose organic pollutants and biofilm. It has strong chelating and dispersing performance, which can complex metal ions such as calcium, magnesium, iron and manganese, and inhibit the re-precipitation of scale. It is miscible with water in any ratio. It has moderate corrosivity. When used in accordance with the recommended dilution, temperature and soaking time, it will not damage polyamide RO membranes. Acidic cleaner and alkaline cleaner cannot be mixed directly, otherwise neutralization reaction will occur and insoluble precipitates may form. It has surface wetting ability to help peel contaminants from the membrane surface. It is stable at room temperature. High temperature and strong sunlight will reduce the activity of effective ingredients. It is incompatible with strong oxidants such as chlorine, ozone and hydrogen peroxide, which may decompose active substances and damage membrane elements.
Applicaion of Reverse osmosis cleaning agent
Reverse osmosis membrane cleaner is a special chemical cleaning agent designed for reverse osmosis membrane systems. It is divided into acidic type and alkaline type to target different contaminants accumulated on the membrane surface. It is widely used in the online cleaning (CIP) of RO membrane elements in industrial water treatment, pure water production, ultra-pure water preparation, brackish water desalination and seawater desalination systems. The acidic cleaner is mainly used to remove inorganic scale, including calcium carbonate, calcium sulfate, metal oxide and hydroxide deposits. It dissolves hard scale and restores the water flux of the membrane. The alkaline cleaner is mainly applied to remove organic fouling, biofilm, grease, protein, polysaccharide and microbial slime. It can saponify and decompose organic pollutants, strip biofilms and eliminate the biological contamination of the membrane.
When the RO system shows decreased flow rate, increased pressure difference and poor desalination efficiency due to membrane fouling, this cleaner can be used for circulating cleaning. It penetrates into the fouling layer, disperses and dissolves the pollutants, and prevents the re-deposition of suspended impurities on the membrane surface by chelating and dispersing components. It helps recover the designed performance of the reverse osmosis system, extend the service life of membrane elements and reduce the frequency of membrane replacement.
It is suitable for RO systems in many industries, such as power plant boiler feed water, electronics ultra-pure water, food and beverage processing, pharmaceutical water production, chemical water treatment, mine water treatment and municipal water reuse. It is compatible with most polyamide composite RO membranes under standard dilution and operation conditions. It is usually used in combination: acidic cleaning and alkaline cleaning can be carried out sequentially according to the actual fouling situation. It cannot be mixed directly before use. It is easy to operate during CIP cleaning and does not require complicated supporting equipment. It can effectively reduce the maintenance cost of the water treatment system and guarantee the stable operation of the whole water making process.
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