Sulzer's Aeration System Improves Wastewater Treatment In A Frozen Vegetables Plant

Ardo Group is a large European frozen food company with 21 production, packing and distribution sites in nine countries. The Ardo factory in Koolskamp, Belgium, produces more than 200’000 tons of fresh-frozen vegetables per year – mainly peas, beans, root vegetables, spinach, Brussel sprouts, cauliflower and celeriac. The factory has its own wastewater treatment plant with an anaerobic digester, aerated biological basins and a tertiary filtration stage with UF and RO membranes. Most of the treated water can be reused on site, in line with Ardo’s sustainability practices. To further improve the efficiency of the WWTP, Ardo recently decided to progressively replace the old surface aerators in the biological basins by optimally-adapted equipment.

Sulzer, together with local contractor Vewaco, delivered four OKI aerator mixers fed by one HST turbocompressor for basin 1. Ardo also received offers from other suppliers, but finally chose Sulzer’s equipment – not only based on technical considerations, but also relying on the strong trust in our products and people.