Written Paper

Algae harvesting methods.  [1989]

Goh A. Primary Industries Enterprise (Singapore) [Corporate Author]

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Micro-algae production in high rate ponds were developed to treat and recover organic nutrient from wastewater. The continuous culture of microalgae to treat pigs wastewater was started in 1976 whereby the possibility of growing, harvesting, processing and feeding of the wastewater grown algae were studied and evaluated in a pilot plant at Sembawang and funded by the International Development Research Centre (IDRC) from 1976 to 1982. Forming part of the UNDP/FAO "Animal Wastes Management and Utilisation Project UNDP/SIN/74/006", the project looked at all the aspects of algae production using pigwaste as a substrate. Several methods of harvesting algae were investigated leading to the development of the continuous mechanical belt filtration system. The harvesting and post harvest processing still represent a major constraint to the wide scale application of algae production for a protein source.