HYDROVEX® Rotary Drum Sieve (RDS)
Unsightly pollution of receiving waters during a sewer overflow event is a frequent problem. These items, including toilet paper, sanitary napkins, disposable syringes, diapers, wipes and plastic bags to name a few, often float in the effluent and cannot be effectively removed by sedimentation or trapped by baffles.
To address this problem, a barrier must be placed between the sewer and the receiving water to capture debris. Static screens and trash racks are often used; however these solutions have major drawbacks. Static screens block easily, as they cannot be cleaned under load and become useless, while trash racks with small bar spacing and forced mechanical cleaning require very long overflow weirs to reduce superficial loads.
The HYDROVEX® RDS Rotary Drum Sieve has been designed to efficiently retain floatables during sewer overflows. Due to the very large filtering surface, the required footprint is greatly reducing compared to tradition solutions, resulting in smaller chambers and reduced civil costs.