We Trinity Engineering are reliable suppliers of an excellent quality Coagulant Chemicals. These chemicals are formulated in compliance with predefined industry norms by making use of best quality chemical substances with the aid of latest processing technique. Trinityengineering offered chemicals are the clarifying agents that are commonly used for waste water treatment applications. In addition, our clients can easily avail these highly effective Coagulant Chemicals in safe packaging options and at pocket friendly rates.
- Coagulant chemicals with charges opposite those of the suspended solids are added to the water to neutralize the negative charges on non-settlable solids (such as clay and color-producing organic substances).
- Once the charge is neutralized, the small suspended particles are capable of sticking together. These slightly larger particles are called microflocs, and are not visible to the naked eye. Water surrounding the newly formed microflocs should be clear. If not, coagulation and some of the particles charge have not been neutralized. More coagulant chemicals may need to be added.
- When referring to coagulants, positive ions with high valence are preferred, the main chemicals used for coagulation are aluminium sulphate as Al2 (SO4)3 (alum), poly aluminium chloride (also known as PAC or liquid alum and substitute of the alum and Ferrous Sulfate), alum potash, and iron salts (ferric chloride as FeCl3 or ferric Sulphate as Fe2(SO4)3). Lime (Ca(OH2)), lime soda ash (Na2CO3) and caustic soda (NaOH) are sometimes used to “soften” water, usually ground water, by precipitating calcium, magnesium, iron, manganese and other minerals that contribute to hardness.
- A high-energy, rapid-mix to properly disperse coagulant and promote particle collisions is needed to achieve good coagulation. Over-mixing does not affect coagulation, but insufficient mixing will leave this step incomplete. Contact time in the rapid-mix chamber is typically 1 to 3 minutes.