WASTE WATER MANAGEMENT
Wastewater or raw water refers to all effluents generated from domestic, commercial establishments. Wastewater contents range from hazardous chemicals to dissolved solids, suspended matter of all sizes, microbial cultures. Municipal and industrial effluents pose direct/ indirect threat to the environment if not properly addressed. Agriculture, uses about 70 – 90% global fresh water use and treatment and reuse of wastewater in agriculture conserve free water, improves soil integrity, checks mixing with surface water, and is economical.
Wastewater treatment is a process of converting wastewater into effluents that can be returned to the environment with minimal environmental threats.
Waste
Industrial
ETP
Waste
Coagulants
Charge neutralization and particulate bonding forming microfloc particles is referred as coagulation. Wastewater coagulants deal with suspended solids, for easy and thorough removal of the same.
Factors affecting coagulation:
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Particle size
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Surface charge
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Water chemistry
Flocculants
Alstafloc series of Flocculants bring together coagulated microfloc particles into larger aggregates and settle them. Typically, flocculants are long chain polymers, with varying molecular weights.
Factors affecting flocculation:
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Polymer type
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Ionic strength
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pH of water
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TDS content
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Dilution ratio
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Shear
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Molecular weight
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Water chemistry
De-oiling Polyelectrolyte
Powder polyelectrolyte used as a flocculant in direct filtration process for settling of inorganic suspended solids in industrial effluents.
Decolourizer
Quaternary compounds for decolouring, flocculating, reducing COD from industrial dye or textile plants.