Solutions to Limit COVID-19 Spread Using Dulevo Road Sweepers

Urban waste management in COVID-19 infected or high-risk areas has become a critical concern for environmental service providers. In Ho Chi Minh City, medical and contaminated waste is handled under strict hazardous waste procedures, with an estimated volume of 42 tons per day.

I. Waste Handling Process in COVID-19 Risk Areas

Waste in quarantine or infected zones can become a transmission source if not properly managed. Therefore:

• Waste must be sealed in specialized yellow bags with warning labels
• Workers must wear full protective equipment
• Waste must be disinfected before and after transport
• Final treatment is conducted through high-temperature incineration

II. Solutions from Dulevo Road Sweepers

1. Reducing Direct Labor Exposure

Dulevo road sweepers significantly reduce the number of workers required on the streets:

• One Dulevo 3000 can replace ~52 workers
• Across a city, this can reduce over 1,000 workers exposed daily

This minimizes human-to-human contact, a key factor in COVID-19 transmission.

Additionally:

• Operators work in enclosed cabins → safer working environment
• Reduced exposure to contaminated surfaces and waste

2. Contactless Cleaning and Disinfection

Dulevo sweepers can be equipped with:

• High-pressure water spraying systems
• Vacuum suction systems with extended hoses

This allows:

• Simultaneous sweeping and surface cleaning
• Reduced need for additional equipment and manpower
• Efficient sanitation of public spaces

The vacuum hose system also enables cleaning in narrow or hard-to-reach areas without direct human contact.

3. Containment of Contaminated Particles

Dulevo sweepers are equipped with advanced dust filtration systems:

• Capable of capturing PM10 and up to 80% of PM5 particles
• Prevents re-dispersion of contaminated dust into the air

Since virus-carrying droplets can range from <5 to 100 microns:

• The filtration system helps trap these particles effectively
• Reduces airborne transmission risks

The entire cleaning and waste collection process is conducted in a closed system, minimizing environmental contamination.

Conclusion

Dulevo road sweepers provide an effective solution for pandemic control by:

• Reducing human exposure
• Enabling contactless cleaning
• Containing potentially infectious particles

This makes them a valuable tool in urban sanitation during public health crises.