Available options for odour and corrosion control

Gas phase H2S control

The options for gas phase control for odour and corrosion are listed below. Please make a selection from the list.

  1. Gas phase treatment
  2. Sewer wall coating
  3. Sewer ventilation

Gas phase control of other odorous compounds

A link to a Fact Sheet with the options for the treatment of other odorous compounds goes here.

Liquid phase H2S control

The options for liquid phase control of sewer odour and corrosion are listed
below. Please make a selection from the list:

  1. Source control
    A link to a Fact Sheet with the description of source control as a strategy for odour and corrosion control goes here.
  2. Chemical dosing
  3. Bio-electrical treatment
    A link to a Fact Sheet with the description of source control as a strategy for odour and corrosion control goes here.

Hierarchical approach for odour and corrosion control.

The following order for implementation of odour and corrosion control measures is recommended:

  1. Source control
    A link to a Fact Sheet with the description of source control as a strategy for odour and corrosion control goes here.
  2. Liquid phase H2S control
    The options for liquid phase control of sewer odour and corrosion are listed
    below. Please make a selection from the list.

    1. Source control
      A link to a Fact Sheet with the description of source control as a strategy for odour and corrosion control goes here.
    2. Chemical dosing
    3. Bio-electrical treatment
      A link to a Fact Sheet with the description of bioelectrical treatment goes here.

    The options for liquid phase control of sewer odour and corrosion are listed
    below. Please make a selection from the list.

    1. Source control
      A link to a Fact Sheet with the description of source control as a strategy for odour and corrosion control goes here.
    2. Chemical dosing
      A number of chemicals can be used to control the production and release of H2S in and from sewers. The chemicals differ significantly in terms of the mechanism of action, application dose and impacts on downstream treatment units.

      1. I would like to explore options of chemical dosing for sulfide control
        1. Oxygen: Oxygen is used as an oxidant, which oxidizes the sulfide already
          present in wastewater and prevents formation of sulfide downstream by
          maintaining aerobic conditions.
        2. Nitrate
        3. Ferric chloride
        4. Magnesium hydroxide
        5. Free nitrous acid
        6. Caustic
      2. I know the options, and would like to know more about a chemical
      3. I know the chemical and I have got some concerns about using the chemical
      4. I know the chemical and would like to know more about the dosing
      5. I want to compare a number of chemicals for selected criteria
      6. I want to know what other people are doing
    3. Bio-electrical treatment
      A link to a Fact Sheet with the description of bioelectrical treatment goes here.
  3. Gas phase H2S control
    The options for gas phase control for odour and corrosion are listed below. Please make a selection from the list.

    1. Gas phase treatment
    2. Sewer wall coating
    3. Sewer ventilation
  4. Gas phase control of other odorous compounds
    A link to a Fact Sheet with the options for the treatment of other odorous
    compounds goes here.

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