Safer Medical Waste Treatment Technology

Rotoblock's medical waste treatment non-incinerator systems offer a safer and more efficient alternative to managing medical waste. Unlike incinerators, which can release dangerous substances into the air, Rotoblock's system eliminates the risk of dioxins and consumes less energy. The equipment works under high-pressure and high-temperature and uses recycled steam to sterilize and disinfect the medical waste. After treatment, the medical waste is non-recognizable and harmless, ready for landfill. The technology is also more efficient and environmentally-friendly with lower maintenance costs and fully compliant with international health standards.

Components of the Daifu System

The Daifu MWT system is usually made up of the following components:

Sterilizer

The system is the main component. The sterilizer sterilizes the waste with high temperature and pressure and simultaneously fragments and dries the waste to reduce significantly the weight and volume of the waste.. The sterilize has 2 different styles: 1) front loading systems and 2) top loading systems.

Boiler

The boiler generates the high temperature steam used in the sterilizer. The boiler can be operated using various fuel types based on availability and customer preferences. The most common fuels are oil, natural gas, propane, coal or diesel. Steam from the boiler can also be used to heat water for the Container Cleaning System.

Conveyor

The conveyer moves the treated waste from the sterilizer to the shredder and to a compactor or a collection container or truck. The conveyors are custom designed and built to suit the specific installations.

VOC Waste Gas Filter System

The filter system is an important component that condenses and filters the pressurized gases generated during treatment of the medical waste in the sterilizer. Volatile organic compounds (“VOCs”) are produced during the high temperature treatment and must be filtered before being released to the atmosphere. This specially engineered system ensures that these gases are cooled below 40°C and filtered to release environmentally non-harmful emissions to the atmosphere.

Shredder

The shredder (or grinder) is used to further reduce the size of the waste fragments after the treatment cycle. The waste is already fragmented and considerably reduced in size within the sterilizer’s treatment cycle. However, some local regulations or landfill operators require additional shredding to ensure the fragments are “unrecognizable” to prevent reclamation of any waste residues.

Container Cleaning System

The cleaning system is automated and is used to clean the soiled waste bins that are used to transport the waste to the facility from the hospitals or other sources. A chain conveyor method conveys the soiled waste bins through a series of high pressure hot water sprays and then through another series of sprays that chemically sanitize the containers. The excess water is blown off to dry the waste bins before they are shipped back to customers for reuse.

Control Panel

The control panel fully automates the system by using state-of-the-art logic controllers and a large touch screen. The panel is designed for ease of use and requires minimal operator training. Smaller remote panels can be used for ease of access by connection to the main control panel. The system logs all treatment cycle data and is accessible via the internet, making data retrieval convenient and allowing technicians to troubleshoot remotely.

Technical Advantages of Our System

Compared to other MWT techniques, such as incinerator, microwaving and heat-pressure, the Daifu system has the following advantages:

• Zero-emission of Dioxin, the most toxic elements often found in medical wastes treatment.
• The sterilization result passes the industrial standard of LOG4 (for which the survival probability rate after-treatment is 1:10,000), reaching LOG6 (for which the survival probability rate is 1:1,000,000) to LOG8 (for which the survival probability rate is 1:100,000,000);
• The steam generated can be recycled and reused, thus saving energy and cost;
• Low operating and maintenance cost and low emission;
• Complete automated operation, ensuring safety;
• No emission of any toxic, hazardous and infectious substances into the air;
• Greatly reduce the volume and weight of disposable post-treatment waste.