Because of the large proportion of COD (chemical oxygen demand) in their sewage, many larger companies in the foodstuffs industry have their own biological sewage treatment plants, which are mostly operated on the traditional aerobic basis. These plants often require a lot of energy for aeration and mixing. They also produce carbon dioxide as an end product, together with large quantities of sewage sludge, which today must be disposed of expensively (50–90 € per tonne).
Modern anaerobic technology offers an alternative avoiding these disadvantages. Anaerobic processes rather involve the formation of biogas, a regenerative energy carrier, and a reduction in the amount of sludge by a factor of ten.
We would be very pleased to analyze the sewage accumulating in your company and find the best suited technology in economical and ecological terms.