Coagulants applications

Coagulants applications

Coagulants applications

Coagulants are widely used to purify drinking water and clean the wastewater produced in industrial processes.

In the paper industry, coagulants have applications in the sizing and retention parts of the papermaking process.

Coagulants also have an important role in the treatment of water both before and after it is used in industry. Inorganic coagulants (particularly those containing ferrous sulphate) also have important applications in the agricultural and cement sectors.

There are also many other applications where aluminium and iron salts have an indispensable role.

Sizing controls the amount of liquid the cellulosic fibres in paper can absorb. Appropriate sizing regulates the amount of ink or water that can penetrate into the paper. Without it, our printed papers would end-up a soggy mass.

Retention is a papermaking term which describes the process of separating fibres from water to form a paper sheet. Good retention is essential for economical and quick paper production.

Retention is one of the most controlled parameters in the papermaking process. Improving retention reduces the amount of papermaking compounds, fibres and fillers in the waste water and improves profitability.

To increase fibre and filler retention, aluminium salts, sodium aluminate (SAL) and poly aluminium chloride (PAC) are used. Aluminium salts enhance the effect of other process chemicals (for example, poly-electrolytes) and remove unwanted anionic trash.

In dye printing, bleaching and dyeing, medicine and other industries.
In artificial coal industry, it is used for separating coal and water with excellent effect.
In the oil refining industry, for oil and water separation.

Purifying drinking water, sewage.
Industrial water purification, industrial wastewater, mining, oil field injection water, metallurgy, coal washing, leather and all kinds of chemical waste water treatment.

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