Evaluating Sustainable Use and Management of Winery Solid Wastes through Composting

  • A.R. Mulidzi Agricultural Research Council


Most solid waste produced by South African wineries during wine making processes includes wine filterwastes derived from perlite and Diatomaceous earth. Wine filter wastes together with grapevine pruningcanes, berry skins, seeds and stalks can be used to make compost as a waste minimization and managementstrategy for the wine industry. The objective of the study was to investigate the feasibility of using winerysolid waste and grape products on composting. Wine filter wastes together with grapevine pruning canesand berry skins, seeds and stalks were successfully used to make compost of good quality. Compost pilesthat had between 40% to 50% of wine filter wastes resulted in successful composting. Turning of compostheaps increased temperatures, which was a positive factor during composting. Furthermore, some compostparameters are likely to change from season to season as composting weather conditions, quantities andprobably also chemical composition of wine filter wastes generated seasonally may vary.

Author Biography

A.R. Mulidzi, Agricultural Research Council
Soil and Water Science Division, ARC Infruitec-Nietvoorbij, Stellenbosch Research Team Manager