bio gro New Zealand. Certified input for organics
Digestor 200 Print E-mail
This product was developed to assist farmers with effluent oxidation ponds required to meet regulatory standards under the Resource Management Act.
  • Developed to rapidly lower the total suspended solids flowing out of farm oxidation ponds.
  • Will lower the B.O.D (biological oxygen demand) of liquor outflows from farm oxidation ponds.
  • Reduce the build up of organic solids in oxidation ponds as well as reducing pump out requirements.
  • Stops the formation of crusting on ponds.
  • Accelerates the breakdown of organic solids within the pond.
  • Improves the pumpability of the pond liquor and sludge.
  • Reduces the incidence of “nitrogen burn” on pasture (particularly associated with the spreading of piggery effluent).
  • Where the effluent is spread on pasture it makes the nutrients with the effluent liquor more readily available for uptake by the plants.
  • Controls and reduces odour from the effluent.
  • Available for sale in 5kg pails.
  • Average dosing is 60gm per day per 100 cows.
A large scale pig farm (running approximately 1100 pigs and sows) located near Kaiapoi just north of Christchurch, had been rapidly overtaken by rural subdivision and an increasing number of city folk.  The city folk wished to enjoy country life whilst still enjoying all the facilities and odour free nature of an adjacent big city. With this burst in population numbers around the pig farm from non farming types, complaints began to surface about the pungent odour from the farms effluent pond. Complaints to both the local and regional councils were made and the arguments over who was there first raged. The councils advised that the effluent pond odour had to be controlled or the pig farming operations ceased because it breached their resource consents.
Crunch time had arrived!!

Enter DIGESTOR 200 

Trial dosing levels with Digestor 200 were established and a breeding tank to “bulk up” bacterial numbers prior to dosing the pond was set up.

The results were spectacular. Odour from the effluent pond has reduced significantly and the only detectable odour now is from the drains from the sheds and pens that feed the effluent pond. Solid and liquid wastes from the piggery pens and sheds initially pass over a screen to remove straw then passes into the pond. It was dosed once a day with 150grams of Digestor 200 which had been “bulked up” in a breeding tank for the preceding 24 hours.

The pond is now working as it should and the dosing has been adjusted to a maintenance basis of 35 grams per day (with the added bacteria supporting the existing colonies of bacteria by way of bioaugmentation).

The offending odour has substantially reduced and the pond is covered with a soft scum. Breakdown of nitrites, nitrates and organic solids is taking place. Because the effluent pond surface is now “soft” and the pond contents are easily pumped, the pond contents are being used as ground spread fertiliser on an adjoining dairy farm. If sectors of the dairy farm pasture are missed in the ground spreading operation, a 50mm reduction in pasture growth over the following 2 weeks is observed on those areas!

All in all a very successful out come with the pig farmer continuing to operate from his established base, no complaints from the adjoining rural residential land owners about odour and an effluent that is both easily pumped and very beneficial as a fertiliser!