Managing Seasonal Wastewater Effectively
DAS Environmental Experts presents a practical approach to treating process wastewater from the food industry with varying levels of contamination within a single plant.
DAS Environmental Experts Publishes in CITplus IFAT Special
The article, titled “Saisonabhängige Abwässer sicher beherrschen” (“Managing seasonal wastewater reliably”), presents a practical approach to treating different industrial wastewater streams in one plant.
This article addresses a key challenge in industrial wastewater treatment within the food processing sector: the composition of the wastewater varies significantly depending on the raw materials used. In the project presented here for the customer Emsland – Aller Aqua, two different types of wastewater with seasonally staggered generation must be treated – from the potato season running from August to November and the pea season from December to July.
The processing of these raw materials leads to widely varying loads, nitrogen levels and C/N ratios over the course of the year. At the same time, the discharge limits for COD, nitrogen and phosphorus remain constant.
Design Follows Process Reality
DAS Environmental Experts demonstrates how a multi-stage treatment concept can be designed to handle this variability. The solution combines biological and chemical-physical processes, with a three-stage MBBR (Moving Bed Biofilm Reactor) system at its core. This setup enables stable effluent quality even under changing influent conditions and seasonal load peaks.
The article highlights the importance of designing wastewater treatment systems not only for average conditions, but for dynamic and shifting process realities. By integrating biofilm technology, targeted nutrient control and complementary treatment steps, the approach ensures robust operation without increasing system complexity.
Impressions
