Water Pasteurization System Knowledge

The video tutorial explains that water does not need to be boiled to be safe; heating it to 65°C is sufficient for pasteurization. The concept has been developed over time, with significant contributions from Dale Andrietta. The speaker has been involved in cook stove development since 2002 and describes a fuel-powered water pasteurizer system. The system uses a thermostatic valve to ensure water is heated to at least 71°C, making it efficient and suitable for emergency situations. It can produce 60 gallons of clean water per hour using minimal wood, making it ideal for use in developing regions.

What is the minimum temperature required for water pasteurization according to microbiologists?

• 100 degrees Celsius

• 65 degrees Celsius

• 85 degrees Celsius

• 50 degrees Celsius

Who is credited with significant contributions to the idea of water pasteurization?

• Dale Andrietta

• Damon

• Fred

• Cottage Grove

What was the main purpose of the talk given at Ethos in 2009?

• To explain the history of pasteurization

• To introduce a new cooking stove

• To propose a fuel-powered water pasteurizer

• To discuss the boiling point of water

What is the capacity of the cooking stove designed for the pasteurization system?

• 150 liters

• 50 liters

• 100 liters

• 200 liters

What mechanism is used to control the water level in the pasteurization system?

• A manual pump

• A float valve

• An electric sensor

• A pressure gauge

At what temperature does the thermostatic valve start to open?

• 80 degrees Celsius

• 71 degrees Celsius

• 76 degrees Celsius

• 65 degrees Celsius

What is the estimated water production capacity of the system per hour?

• 120 gallons

• 60 gallons

• 90 gallons

• 30 gallons

How much wood is approximately required to produce 60 gallons of water?

• 1 kilo

• 2-3 kilos

• 5 kilos

• 10 kilos

Where is the pasteurization system envisioned to be most useful?

• Urban areas

• Third-world countries

• Industrial zones

• Suburban neighborhoods

What is the main benefit of the pasteurization system in emergency situations?

• It purifies water efficiently

• It is portable

• It can boil water quickly

• It requires no fuel