Is the odour being generated in the treatment plant or odour arriving from the influent to the treatment plant?  Ferric chloride dosed in the sewer catchment works well but is a dangerous good, Magnesium hydroxide liquid (MHL) also works well, but is difficult to dose.  Biosol an Australian product, has been shown to out perform both MHL and Ferrous chloride in terms of odour reduction when dosed correctly.  Its foot print is about 1/3 of what is required for MHL or Ferrous chloride, it is non hazardous and also has far better phosphorus control than ferrous chloride.  Contact sales@biosol.net

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Is the odour being generated in the treatment plant or odour arriving from the influent to the treatment plant?  Ferric chloride dosed in the sewer catchment works well but is a dangerous good, Magnesium hydroxide liquid (MHL) also works well, but is difficult to dose.  Biosol an Australian product, has been shown to out perform both MHL and Ferrous chloride in terms of odour reduction when dosed correctly.  Its foot print is about 1/3 of what is required for MHL or Ferrous chloride, it is non hazardous and also has far better phosphorus control than ferrous chloride.  Contact sales@biosol.net