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NATURE OF TYPICAL WASTEWATER ODOURS
ODOURS are generated during the conveyance and treatment of wastewater due to the degradation of organic matter by micro-organism under anaerobic conditions.
The range of odorous constituents in such biogenic odours is very wide and they include: hydrogen sulphide, ammonia, thiols and other organic sulphur compounds, mercaptans, amines, indole and skatole, volatile fatty acids and a wide range of organic compounds produced by Anaerobic fermentation.
ODOUR CONTROL SYSTEMS for IDENTIFIED ODOUR SOURCES require CONTAINMENT (COVER with LOCAL EXHAUST) and TREATMENT and must be designed and installed as an INTEGRATED PACKAGE
IDENTIFIED ODOUR SOURCES
CONTAINMENT (COVER WITH LOCAL EXHAUST)
ODOUR SAMPLING & MEASUREMENT
TREAT ODOUR PROBLEMS for ODOUR ONLY AFTER REMOVAL of IDENTIFIED HAZARDOUS CHEMICALS
Performance of odour control systems are determined by
odour removal efficiency in odour concentration units
(ou/cu.m) and measured according to MS1963.
In our BIORID® Pre-Scrubber section, hazardous chemicals
and solid contaminants are removed from the odorous gases.
The gases, which are now pre-cleaned, humidified and cooled but still odorous, are then passed on to the BIORID® Biofilter where the biological processes will reduce the odour concentration units down to an acceptable final emission level.
This biological odour treatment is characterised by the ability of the selected micro-organism to convert unwanted contaminants into harmless end products.
Odorous contaminants + O2 Cell material + CO2 + H2O
micro - organism
Odour Removal Efficiency of BIORID Odour Treatment Plant
Ninety percent (90%) Odour Removal Efficiency for Inlet odour loads
of 10,000 OU/cu.m and above OR Less than 1,000 OU/cu.m
at Outlet Discharge for Inlet odour loads of less than 10,000 OU/cu.m.