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Wastewater treatment in the physical process of coagulant selection can be said to play a very important role, different properties and concentrations of colloids and suspended solids applicable coagulants are different. In addition, the charge of the suspended matter in the wastewater will also affect the choice of coagulant. For the choice of coagulant, generally when the wastewater is colloidal, inorganic coagulant can be added first for destabilisation. In practical application, people will use polymer coagulant with inorganic coagulant to improve the coagulation effect and reduce the cost.
1. The dosage of coagulant:
In addition to the type of coagulant, its dosage is also a major influencing factor, and the amount of coagulant dosage required in wastewater is determined by relevant experiments. It has a great correlation with the water quality of wastewater and its own type, dosing method and media conditions. Its dosage should not be too little or too much, from the dosage experience, the traditional iron salts (such as polymeric iron sulfate or ferrous sulfate) and aluminium salts (such as polyaluminium chloride) for 10-30mg / L, polymer is half or one-third of its organic molecules are in 1-5mg / L.
2. Coagulant dosing order:
If you need to add a variety of coagulants in the coagulation treatment, the order of addition will also affect the application of its effect. The normal rule is to choose to add inorganic salts such as polymerised iron sulphate, and then add organic salts. For example, when using ferrous sulphate and lime agent, need to add ferrous sulphate and then add lime, this time the filtration speed is fast, reduce the provincial agent. Polymer coagulants and coagulants, generally should be added first coagulant. However, if the colloidal particles in more than 50 microns, it is necessary to use organic coagulants for adsorption and bridging before using inorganic coagulants for compression and destabilisation.
In addition to the coagulant factors mentioned above, it is also affected by the quality of wastewater, including water temperature, PH value and water composition and nature, concentration, etc., by taking water samples for experiments to better determine the wastewater in the agent and its dosage, dosage to achieve a better coagulation effect.
The main products of flocculant manufacturer Xinhuan Water Treatment are:
White polyaluminium chloride (food grade), drinking grade polyaluminium chloride, industrial grade polyaluminium chloride, anionic polyacrylamide, cationic polyacrylamide, nonionic polyacrylamide, petroleum recycling polyacrylamide, oil recovery polyacrylamide, polyacrylamide, polymer flocculant polymer flocculation coagulant, polymeric ferrous sulphate, polymerized iron and aluminium chloride, and other water treatment chemicals. Welcome customers to write to us to negotiate business! Tel/WhatsApp：86 15936201203 Email：maggie@xhwtm.com Contact:Maggie
