Chelsea Sugar Refinery changes a process and makes savings
Case studies
1 March 2009
The Chelsea sugar's new sugar purification process has reaped savings in labour, gas and water use and reduced discharges of wastewater, heat and air pollution.
The new process forces sugar liquor through granulated activated carbon in five 62 kilolitre pressurised stainless steel vessels, to remove impurities. It replaced a process that had remained almost unchanged for 120 years.
As a result, NZ Sugar had achieved 13% greenhosue gas emission reduction. The plant is repaying its $7 million cost in just 3.8 years.
