In 2011, HUBER USA won a public tender for an innovative drying concept with a total investment volume of approx. US $ 3.8 million. The tender requirements included simple and easy equipment operation, a dust-free as possible end product which meets US EPA Class A requirements, and reliable elimination of odours. The HUBER USA offer convinced the customer due to a thoughtfully designed operation and control concept, comprehensive technical literature and high-quality products.
Our HUBER USA team ensured that project processing went off without problems. The equipment components of the drying plant were installed by the USA service team. Service specialists from Germany supported them during plant commissioning. The fully automated drying plant is operated at medium temperature.
The plant is a two-belt dryer with an active drying length of 2x 20 m. The sludge is dried from 18% initial DR to > 90% final DR. A boiler which is operated with natural gas and heats the water to approx. 95 °C serves as heat source. The drying air is heated with several heat exchangers in the dryer to ensure reliable drying of the fed sewage sludge.