The CleanB system treats Waste Activated Sludge (WAS) and a variety of organic wastes onsite on a semi‐continuous basis to produce Class B biosolids. The process eliminates the need for complex wastewater treatment infrastructure and requires only minutes to achieve results. CleanB is environmentally responsible and economically viable for wastewater treatment plants of almost any size.
The CleanB® Process
Step 1 – Sludge Delivery
A WAS Pump feeds sludge at a maximum of 2% solids from the clarifier into the CleanB Process Unit at a monitored and controlled flow rate.
Step 2 – CleanB® Chemistry Injection
The Chemistry Injection System delivers a flow-controlled dose of chlorine dioxide through BCR’s patented Generating System. The system adjusts for variations in the sludge flow rate. BCR’s Generating System is an innovative method for maintaining the desired chlorine dioxide concentration. Dosing is handled automatically by the SCADA Process Controls to ensure optimal disinfection and odor elimination.
Step 3 – CleanB® Disinfection
CleanB chemistry mixes with the sludge stream in the Process Contact System, where disinfection occurs and odor-causing compounds are destroyed. The Process Contact System is a custom designed piping system engineered to fit compactly within a small footprint and provide the proper residence time for uniform disinfection. Upon exiting the CleanB Process Contact System, treated biosolids are delivered to the dewatering equipment without the need for any additional pumping.
Step 4 – Dewatering
Following CleanB treatment, Class B biosolids are dewatered using standard dewatering technology such as a centrifuge, screw press, or belt press. BCR can supply dewatering equipment, if needed. Or the client can use existing equipment or source its own dewatering equipment.
Step 5 – End Product Management
CleanB treated biosolids are a Class B biosolids product that is safe for land application as set forth by Title 40 CFR Part 503. As part of our Whole Solution offering, BCR can assume long-term responsibility for the transportation and end product management of material treated by a CleanB system. The biosolids can be land applied or used as feedstock at one of BCR’s Accelerated Composting facilities. CleanB reduces odors in the end product. By eliminating odors, CleanB expands the number of viable land application sites to include locations with nearby residences.