Water Treatment Agents  
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Primary Information Services

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Chlorine (Cl2)

  • Sodium hypochlorite (NaOCl)
    Calcium hypochlorite (Ca(OCl)2)
    Chlorine dioxide (ClO2)
    • Chloramine
    • Ozone, Non-oxidation type
     • Quaternary ammonium
    • Glutaraldehyde
    • Bisulfide-cyano-methane
    Inorganic coagulant Mineral salt
    Aluminum sulphate (AlSO4)
    • Ferrous sulphate (FeSO4)
    • Ferric chloride (FeCl3)
    Macromolecular coagulant
    Poly aluminum chloride (PAC)
    • Polymeric ferric sulfate (PFS)
    • Poly aluminum sulfate
    Composite inorganic macromolecular coagulant Anion compounds including:
    • PAC combining with sulphate (SO42–)
    • PFS combining with chloride (Cl–)
    • Cation compounds including PAC combining with
    ferric ion (Fe3+)
    Multi-ion compounds including:
    • Complex of ferric ion
    • Sulfate radical
    • Chloride
    Inorganic-organic complex compounds including:
    • Complex of PAC and polyacrylamide (PAM)
    • Poly chlorinated ferric sulphate
    • Poly aluminium silicon
    • Poly aluminium phosphorus
    • Poly aluminium ferrous
    Organic coagulant Synthetic macromolecular coagulant PAM and its ramifications
    Natural macromolecular coagulant Amylum, cellulose, mucus of plant, amylose, protein
    and their ramifications

Water Purification

  • Contaminants come from leaking sewage pipelines, factories discharge, agriculture run-off
  • Sources and types of contaminants can be many such as pesticides, herbicides, hospital waste, industrial effluents, waste land fills,
    heavy metals, microbes and other harmful organic and inorganic compounds.
  • Two billion people worldwide do not have access to clean water.
  • Most surface waters are first treated with chemicals that combine with dirt particles.
  • The dirt is then filtered out of the water, making it clear.
  • Then the water is disinfected. In addition treatment is needed to solve special problems.
  • Treatment, as described above, does not remove dissolved toxic chemicals.
  • A chemical disinfectant is added to the drinking water at the treatment plant.
  • Chlorine is the most common disinfectant.

Water Treatment Agents

  • The market is  divided into  sub segments; Coagulants and Flocculants,
    Biocides and Disinfectants,
    Defoamers and Defoaming agents,
    pH Adjustors and Neutralizers,
    and others.

  • Research on Carbon nano filtration membranes and nano catalysts like iron, silver and titanium dioxide for water treatment applications is a fast growing field

  • According to the Indian government only
    30 % of the rural population had access to safe drinking (tap) water in the country.
    55 % depend on tube well or hand pumps to meet their drinking water requirement.

  • 15 % of rural populations were still looking for a dependable source of water.

  • In urban areas, 74 % depend on tap water and 18 % on tube well and hand pump

Primary Information Services
 21 Murugappan St, SwamyNagar Ext2, 
Ullagaram, Chennai - 600091, India.
 Phone: 91 44 22421080 
Email : informer@eth.net , primaryinfo@gmail.com
Mobile numbers:9940043898, 9444008898  Fax : 91 44 22423753