Paques has accomplished 95% COD removal & 99.5% hydrogen sulfide removal for food processor Lamb Weston in Jining, China. High, fluctuating loads of potato wastewater are now turned into clean effluent and green energy that now directly fuels factory operations.
High-rate industrial wastewater treatment in the food sector
The production of frozen French fries involves washing potatoes, as well as washing all equipment that peels, slices and fries the potatoes. These processes generate a lot of solid waste, such as sand, clay, potato starch, palm oil and peel waste. The potato wastewater thus holds very high TCOD and TSS ánd fluctuates highly. The industrial wastewater treatment challenges of Lamb Weston are exemplary for those in the food sector.
For Lamb Weston, Paques implemented an automatically operated, robust anaerobic-aerobic treatment system.
This is how it works.
Transforming wastewater into sustainable energy and revenue streams with BIOPAQ® ICX
Other system benefits for Lamb Weston

Lamb Weston is a leading supplier of frozen potato, sweet potato, appetizer and vegetable products to restaurants and retailers around the world. For more than 70 years, Lamb Weston has led the frozen potato industry in innovation, introducing inventive products for customers. Lamb Weston products can be found in more than 100 countries around the world. Lamb Weston employs more than 10,000 people around the world in sales offices, manufacturing plants and corporate offices.
Circular solutions for potato processing wastewater at Lamb Weston in China
Lamb Weston’s facility in China tackles high-strength wastewater from French fry production using the BIOPAQ®ICX reactor, removing over 85% of COD efficiently. Combined with THIOPAQ® bio-desulfurization, the system produces clean biogas for on-site energy use, supporting a circular economy. This integrated solution ensures compliance with discharge standards while turning waste into value. Download the case study to discover how innovative treatment technologies drive sustainable operations in the food processing industry. Download the full case study to explore how reliable technology and circular thinking come together in this pioneering project.
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引领废水和沼气处理的生物技术革新
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