First-of-its-kind - GEA Manure Decanter enhances sustainability on Canterbury dairy farm.

Craig Copland, an innovative dairy farmer in Canterbury, has successfully integrated GEA’s Manure Decanter system into his farming operations. This modern approach has significantly improved pasture irrigation and sustainability on his farm.

Background

Craig Copland, along with his brother Wayne, operate a 720-hectare farm in Chertsey, Canterbury, which has been in their family for over 140 years. The farm includes dairy, Black Origin Wagyu beef, cropping, and an apple orchard. With 1,500 cows milked through a 60-bail GEA rotary, their farm is a great example of diversified farming. 

Challenge

Before implementing the GEA Manure Decanter, Craig was using a GEA Screw Press separator but faced challenges with irrigation nozzle blockages and high levels of potassium and phosphate in his paddocks. Managing the large volume of effluent from his system five dairy farm, which houses 600 cows and 1,000 Wagyu beef animals indoors, was a significant task.

Solution

The GEA Manure Decanter, typically used in industries like wastewater and wineries, was adapted for use on the dairy farm. This high-speed decanter separates solids from liquids. The clarified liquid is fed to a nearby irrigation pond and the solids are dropped underneath the decanter into a concrete bunker. The system has reduced irrigation nozzle blockages and allowed for more efficient use of nutrient-rich natural fertilisers. This is the first system of its type in New Zealand, showcasing Craig’s innovative thinking and GEA’s state-of-the-art approach.

Results

Since installing the decanter Craig has seen a big increase in irrigation run time, from blocking nozzles within 8 hours to now endless running time. Pasture growth and crop production have improved, and the farm has reduced its use of synthetic fertilisers. The system has also contributed to significant water savings and improved water quality. Additionally, the decanter system saves time and money by replacing the need for other options that requires regular maintenance, expensive machinery and skilled operators, such as a slurry truck system. 

Conclusion

Craig Copland’s innovative use of the GEA Manure Decanter highlights the potential for repurposing existing technologies to enhance sustainability in dairy farming. This case study is one example of how GEA’s commitment to providing innovative solutions support environmentally sustainable farming practices.