CERINOX® BR
Cross-flow Filtration Plant With Ceramic Membranes
For beer recovery from surplus yeast Characteristics
The CERINOX® is a compact cross-flow filtration plant equipped with ceramic tubular membranes. The plant consists of two main parts, the filter unit and the CIP station. Both parts can be arranged separately or on a common skid. Different automation levels are available, from manually controlled units up to fully automated plants.
The special design of the so-called dual-flow mo dules allows high packing density of filter surface, which leads to small footprints and lower heights of CERINOX® plants. Especially because of the latter, the CERINOX® is easy to maintain. Due to the compactness of the plant, its inner volume is small compared to the installed filter area. This leads to low water and energy consumption as well as low product losses. Tailor-made ceramic membranes for beer recovery from surplus yeast guarantee high economical benefit and high quality of recovered beer. The high durability of the membranes, together with a well proven process based on 15 years of experience with more than 50 plants installed worldwide, lead to very reliable systems with very low demand for operator presence and maintenance. This, and the short pay back periods, made the CERINOX® a standard solution for beer recovery today.
Basic process
During the brewing of beer, surplus yeast settles in the fermentation and storage tanks. The total volume of surplus yeast represents about 2 to 3% of a brewery‘s output. Approximately 50% of the volume of surplus yeast is beer, which is lost to the brewery if the slurry is sent untreated to farms or food producers. If yeast is discharged into the sewerage system, very high treatment charges arise because of the very high biological oxygen demand. The average B.O.D. value is around 140,000 mg/kg. For these reasons, the valuable component «beer» is recovered from surplus yeast.
Working principle
The cross-flow principle as shown in the following picture is characterised by the flow directions of the unfiltered and filtered liquid, which are perpendicular to each other. The preferably-turbulent flow of the unfiltered liquid, which is parallel to the membrane’s surface, prevents particles from depositing on the membrane or carries away already deposited substances. Hence the throughput of filtered liquid through the membrane is kept high. A pressure gradient across the membrane forces the filtered liquid to penetrate the membrane.
pdf Download of Technical Info Sheet
Please download the technical info sheet from here.
Please find a reference paper in the Brauwelt Online here.