1. Worry Wastes in Water- Dec '051 MIDFIELD MEATS CASE-STUDY

2. Worry Wastes in Water- Dec '052 Midfield Meats Project requirements Technical An alternative to DAFF Easily integrated into existing Offers future enhancements to water quality Operational No chemical dosing Quality Midfield’s claim “We aim to be the best” Reduce SS and BOD loadings specifically To improve existing WWTP performance Cost Reduce loadings to lower Trade Waste Charges No ongoing chemical costs

3. Worry Wastes in Water- Dec '053 Original WWTP Plant

4. Worry Wastes in Water- Dec '054 With Two Baleen filter units Green Stream (front) & Red Stream (rear)

5. Worry Wastes in Water- Dec '055 Green Stream AveragePeak DailyOperating hrs Wastewater Flow to Primary TreatmentUpto 30+ Lps (or 108 m3/hr)Upto 1.0 ML12+ BOD (highly variable)Upto 10,000+ mg/L SS (highly variable)Upto 10,000+ mg/L Wastewater Flow to Baleen Filter after Pre-screens and Contra-Shear (Absolute rating ~0.5 mm) ~30 Lps (or 108 m3/hr) BOD to Baleen FilterUpto 2,500+ mg/L SS to Baleen filterUpto 2,500+ mg/L Temperature< 30 deg C

6. Worry Wastes in Water- Dec '056 Green Stream micro-screening

7. Worry Wastes in Water- Dec '057 Red Stream AveragePeak DailyOperating hrs Wastewater Flow to Primary TreatmentUpto 20+ Lps (or 72 m3/hr)Upto 0.5 ML12+ BOD (highly variable)Upto 10,000+ mg/L SS (highly variable)Upto 5,000+ mg/L Wastewater Flow to Baleen Filter after Pre-screens and Contra-Shear (Absolute rating ~0.5 mm) ~20 Lps (or 72 m3/hr) BOD to Baleen FilterUpto 10,000+ mg/L SS to Baleen filterUpto 5,000+ mg/L Temperature<50 deg C

8. Worry Wastes in Water- Dec '058 Red Stream micro-screening

9. Worry Wastes in Water- Dec '059 Combined Treated water Discharge BOD (daily composite average based upon ¼ ly) 600-650 mg/L Combined Treated Water Discharge SS (daily composite average upon ¼ ly) 600-650 mg/L Red + Green Stream Pre-discharge (without chemicals) Green stream 1.3mm screeningsGreen stream 0.065mm screenings

10. Worry Wastes in Water- Dec '0510 Water Quality Before Baleen SSav1400mg/L BODav1400mg/L FOG N/R After Baleen SSav625mg/L BODav625mg/L FOG av250mg/L After in-series CAF SS280mg/L BOD380mg/L FOG35mg/L

11. Worry Wastes in Water- Dec '0511 Micro-screening plus CAF INFLUENTFILTRATE

12. Worry Wastes in Water- Dec '0512 Abattoir effluent pre-CAF

13. Worry Wastes in Water- Dec '0513 Abattoir effluent post CAF