Food Processing – Abattoir (Ovine and Bovine)

M. C. Herd Pty Ltd

Corio, Australia

Our objective was to improve the quality of waste water from the abattoir.

The contaminant material present in the waste water prior to the introduction of Solutek Organic Concentrate included traces of blood, paunch waste, oil and grease etc. which contributed to Trade Waste charges.

The plant operated a treatment process consisting of Coagulation, twin DAF’s, Trickling Filter and Filter Press to treat the effluent produced prior to discharging to the local Water Board sewer. However, residual Chemical Oxygen Demand/Biochemical Oxygen Demand, Total Kjeldahl Nitrogen, Total Oxidised Sulphur and Suspended Solids post effluent treatment was a concern and extrapolated to periodic non compliance and a significant cost to the business.

The amount of residual Organic loading, once discharged to the sewage conveyance network was potentially leading to septicity, odour and corrosion issues within the network in general.


Following the introduction of Solutek Organic Concentrate to the waste water, significant reductions were found in Suspended Solids, Total Kjeldahl Nitrogen and Chemical Oxygen Demand. There was a significant reduction in odour and in oil and grease.


Details and Outcomes



Total Flow Rate: 750,000 L/day
Solutek Dose Rate: 16 mg/L (Waste water)
Dosing Points No.: 1 (Main influent pit)
Total Solutek Dose: 12 L/day


Substantial (82%) reduction in Suspended Solids
Substantial (89%) reduction in Oil and Grease
Reduction (66%) in Total Kjeldahl Nitrogen
Reduction (22%) in Chemical Oxygen Demand
Reduction in Odour within the plant

Some of the information has been condensed in this article in order to provide an overview of the issues and the solution to the problems being addressed.

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Grease and Septicity

The Port Douglas (Douglas Shire) area was amalgamated into Cairns Water and the maintenance and operation of the network and Sewage Treatment Plant became, Before Solutek Organic Concentrate was introduced to the effluent treatment process, residual Chemical Oxygen Demand/Biochemical Oxygen Demand.