Caustic Digester™

PRI's CausticDigester™ uses known technology and incorporates design refinements to address the mechanics of dissolving solid biological waste. An alkaline hydrolysis process at elevated temperature is used to convert biological waste into a sterile, homogenous liquid for safe and easy discharge.

PRI provides the complete system design and components with features that include ASME pressure vessels, hydraulically operated lids, batch reporting and record keeping, field proven process technology, lifts, platforms, steam generators, and other items to meet your specific needs. Automatic process control assures the proper times and temperatures for each cycle.

PRI units are available for small labs and up to 10,000 pounds for the largest facilities. Other size units can be created to meet your specific needs.

With the difficulty of permitting incinerators and the high cost of operation, alkaline hydrolysis provides a cost effective, internationally acceptable method of destroying biological wastes including RNA and DNA viruses and peptide bonds of prions.

Batch Report
PRI's technology provides "Proof of Process" to assure everyone that all possible steps are being taken to protect their safety and the environment.
The Batch Report includes: Batch number, date, and time
Load volume
Graph of the process' pressure, temperature, and time
Pass-Fail indication
The system software automatically prints a report of the process and creates a PDF file.

Batch Reports are an exclusive feature of PRI.

PRI Engineering
PRI maintains a staff of chemical, mechanical, and electrical engineers to assure you that the system designed for your application will give the desired results.

PRI also provides
• Detailed Drawings and Specifications
• Quality Assurance/Quality Control
• Factory Acceptance Testing (FAT)
• Operational Qualification
• Timely Response to Changes and Questions
• Training and After-Sale Support
• Unprecedented Technical Support in the Industry

PRI Manufacturing
PRI is truly a manufacturer with metal fabrication, processing and welding capabilities

As an equipment manufacturer, PRI:

• Maintains Quality
• Identifies Ongoing Improvements
• Controls the Process for Cost Effective Systems
• Fabricates ASME Certified Pressure Vessels
• Assembles UL Labeled Control Panels
• Timely Response to Changes and Questions
• Training and After-Sale Support
• Unprecedented Technical Support in the Industry

PRI Manufacturing
PRI is an experienced manufacturer with metal fabrication, processing and welding capabilities.

As an equipment manufacturer, PRI:

• Maintains Quality
• Identifies Ongoing Improvements
• Controls the Process for Cost Effective Systems
• Fabricates ASME Certified Pressure Vessels
• Assembles UL Labeled Control Panels

Quality Assurance
PRI provides single source responsibility for the engineering design, manufacturing, testing and field implementation of the system. All systems are completely assembled in our shop where Factory Acceptance Testing (FAT) takes place. This allows the client to see the system operate and challenge the system with any unique operational needs that will occur at the facility.

When it is time to start the unit in the field, a PRI Engineer will verify the installation, check the system integrity, validate the operational modes, run a series of checks, and provide training for the facility's maintenance crew and operators.

Engineering, Fabrication and Safety Standards
Adhered to by PRI

• American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, Section VIII
• ASME B31.3 Chemical Plant and Petroleum Refinery Piping
• ASME SA 240 Specification for Heart-Resisting Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip for Pressure Vessels
• ASME SA 312 Specification for Seamless and Welded Austenitic Stainless Steel Pipe
• Underwriters Laboratory (UL, CUL) certified electrical panel assembly department.
• Occupational Safety and Health Standards, CFR 29, Chapter XVII, Part 1910
• National Electrical Manufacturers Association (NEMA) Control Panel Enclosure
• American Society of Testing and Materials (ASTM), Type V polyurethane finish coat of painted surfaces
• American Welding Society (AWS) AWS D1.1 Structural Welding Code-Steel
• All materials shall have Material Test Reports traceable to point of manufacture
• Additional safety codes such as Tubular Exchanger Manufacturer's Association (TEMA) may be applicable for unique situations