Hydrol-Pro offers Digester sizes available handling load capacities of 30lb per batch to 30,000 lb per batch. BioMEER also offers mobile units with 4,000lb to 12,000lb load capacities. The most common size for a large animal veterinary college is 4000 or 6000lb. For a smaller livestock animal facility the 300 or 500lb is typical, and for a smaller rodent research lab the 30 and 80 lb unit suits well. For a full listing of sizes and dimensions, go to the Product Section for a chart and detailed specifications.

One of the first decisions after load capacity that needs to be made is: “Does the user want to have a WET discharge system or a DRY discharge system?” The DRY discharge is unique to BioMEER and provides a “cake mix-like or wax-like” solid substance depending on the degree of dehydration selected and temperature. This solid material is carted away in an 800lb bin to a dumpster which can then be safely transported to landfill with no disposal penalty. The DRY system additionally has a liquid discharge which looks like slightly cloudy water and has an ammonia smell with a solution BOD of 6000 or less. This can usually go down a municipal drain with no or minimal penalty. An alternative use for the dry solid and liquid discharge from the DRY process is for composting. The liquid condensate is a proven compost accelerator (600% rate increase) and the solid can be spread on a crop field as a nitrates and phosphates source. The WET discharge system is also available and here the discharge is a thicker liquid with small particles in it that can be flushed down a sewer drain, but since it has an ultra-high BOD (200,000 to 250,000 depending on dilution calculations), most sewage facilities will charge a high penalty disposal fee, IF in fact they will accept the entrance of this Wet system discharge into their processing facility.

If BOD is too high, it can be disposed over a time release method, as controlled by a BioMEER PLC to dilute it to lower level by mixing with other facility sewage waste of lesser BOD. Or the DRY system condensate can be processed further through an optional BEDS system from BioMEER and mixed with other lab waste water going through the sterilization process performed by the BEDS system.

Caution: This BOD figure is thrown around the industry, and amongst sewage experts and can be confusing to users. There are factors here that can distort actual BOD numbers of concentration according to dilution stages of a process. There are also different ways to measure BOD, as method 5, etc. A detailed article called the “Calculation Distortions of BOD” can be found in our Technical Papers section, or available upon request from Hydrol-Pro.

A detailed Process Diagram is available in the BioMEER Process Section that explains how our digester works and a fluids schematic to help understand building utility connections needed.
A SUMMARY of the Advanced Technology Features of the BioMEER Digester:

• Uses 1/3 the chemical of older technologies
• Uses only half the energy of older technologies;  90% reduction in odor (WET vs. DRY discharge)
• Dry output material recommended, wet output alternative available
• Heated/cooled by circulated oil, no thermal shock to damage vessel
• Unique paddle agitation with no messy pumps. Double mechanical shaft seal. Computer controlled agitation and cycles
• Loading assist equipment, and pressurized Bio-Seal available
• Extended 100% warranty to 5 years available
• Optional remote control panel  Dial-up modem for remote diagnostics, 24 hr. service callback #