Objective: Remove parasitic Helminth Nematode eggs, reduce turbidity and TSS
|Company||Kaipara District Council|
|Location||Mangawhai, New Zealand|
|Description||Tertiary Effluent Filtration|
|Goal||Remove parasitic Helminth Nematode eggs, reduce turbidity and TSS|
|Water Source||Municipal effluent|
- Mangawhai is a water-surrounded popular tourist resort,on New Zealand’s east coast.
- Its population grows considerably during the summer months, and septic tank effluent was causing poor water quality in the harbour
- The wastewater contained a high concentration of the parasitic nematode Ascaris spp . The worm infects the blood, lungs, internal organs and can grow up to 35cm in the intestine . T he nematode can prove to be fatal. The infectious egg (40 um) must be removed from the wastewater to allow it to be used for irrigation.
|Parameter||Existing Value||Required Value|
|Turbidity (NTU)||Up to 50||<5|
Ascaris juvenile and an egg, an adult can produce 200,000 per year.
Helminth Life Cycle:
- AFM® – Activated Media filtration with coagulation, implementing a filter with 1600mm diameter.
- AFM® filter auto-cleaning with a combination of backwash water and air scouring.
The system was designed and built by GEBEL from Sydney Australia
|Parameter||Existing Value||Required Value||After Treatment|
|NTU||Up to 50||<5||<2|