Water treatment chemicals
In the water treatment industry, in order to ensure efficient and stable operation of industrial production, improve water quality, and save water and energy, we need to add some necessary water treatment chemicals to address the issues of scaling, corrosion, bacterial and algal growth, and environmental pollution.
Commonly used water treatment chemicals
- Scale inhibitor
- Oxygen scavenger
- Defoamer
- Disinfectants
- pH conditioners
PAC
PAC, namely Aluminium chlorohydrate. The product has strong bridging adsorption performance. During hydrolysis, physical and chemical processes such as coagulation, adsorption and precipitation occur. This product can effectively remove heavy metal ions such as SS, COD, BOD, arsenic, and mercury in water, and is widely used in the fields of drinking water, industrial water, and sewage treatment.
PAM
PAM, also known as polyacrylamide. Under the premise of achieving the same water quality, the use of polyacrylamide as a coagulant aid in combination with other flocculants can greatly reduce the amount of flocculant used
RO antiscalant
Reverse osmosis scale inhibitor is a scale inhibitor specifically used for reverse osmosis (RO) systems, nanofiltration (NF) and ultrafiltration (UF) systems. It can prevent membrane fouling, improve water production and quality, and reduce operating costs.
Corrosion inhibitor
In order to slow down the corrosion rate of materials, effectively extend the service life of materials, and thereby improve economic benefits. We usually add corrosion inhibitors to the circulating water system or boiler water treatment.
Biocide
Water treatment fungicides are also known as bactericidal and algal agents, sludge stripping agents, or anti sludge agents. A type of chemical that can inhibit the growth of bacteria, algae, and microorganisms in water, in order to prevent the formation of microbial sludge and cause harm to the system. Including oxidizing bactericides, such as chlorine, Sodium hypochlorite, bleaching powder, ozone, chloramine, etc; Non oxidizing fungicides, such as dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, dithiocyanomethane, etc; Heavy metal compounds, such as Mercury(II) oxide, Mercury(II) chloride, Mercury(II) fluoride, etc; Sticky mud fungicides, such as rosin amine, hydrogen peroxide, biguanidine polymers, etc
Scale inhibitor
Mainly refers to a type of chemical used in circulating cooling water systems to prevent pipeline scaling. The concentration of iron ions in circulating water is often increased due to metal corrosion, especially in circulating water systems with highly corrosive water quality and systems with material leakage, where the concentration of iron ions can sometimes reach up to 5mg/L. The scale inhibition and dispersion effects of iron ions on different types of chemicals are determined by various factors, so the impact of different types of water treatment agents on their scale inhibition and dispersion effects is determined by many factors.
Oxygen scavenger
At the same water temperature, the larger the excess amount of chemical deoxidizer in water, the faster and more complete the chemical reaction; At the same dosage, the higher the water temperature, the better the deoxygenation effect; Under the same deoxygenation effect, the higher the water temperature, the smaller the dosage.
The dosage of deoxidizer G can be calculated as follows: G=8 [O2]+ β
O2- oxygen content in water, mg/L; β- Excess amount of deoxidizer, mg/L, usually ranging from 10 to 15.
The general dosage is 40-50 mg/L. Add to the water supply pipeline in front of the water supply pump using orifice plates, membrane type dosers, or piston water pumps.
Defoamer
Fast defoaming speed and long-lasting foam suppression, applied in various foaming systems such as pharmaceuticals, papermaking, leather, printing and dyeing, urban sewage biological treatment processes, and chemical cleaning. This product uses an environmentally friendly formula, which is non-toxic, harmless, and does not affect bacterial reproduction. It can also be used for defoaming in petroleum drilling fluid mud systems.