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NameEcodas T150
SummaryThe Ecodas T150 steam autoclave uses temperatures of 138°C and pressures of around 3,8 bar that produces sterile fragments that are discharged from the bottom of the machine and can be disposed of in a conventional landfill site.
Capacity [Kg/h]30
Annual capacity[kg/year]:72'000   (Capacity x 8 hours/day x 300 days/year)
Lifespan [years] :25
Capital cost [USD]0
Annual capital cost [USD]0   (Capital cost / ( (pow(1.03,Lifespan) - 1) / (0.03 * pow(1.03,Llifespan))
Recurrent costs[USD/kg]0.06
Annual recurrent cost [USD]:4'320   (Annual capacity * Recurrent cost)
Total annual costs [USD]4'320   (Annual capital cost + Annual recurrent cost)
Total cost [USD/kg]:0.06   (Capital cost + (Annual recurrent cost * Lifespan)) / (Annual capacity * Lifespan)
Dimensions l-w-h160 x 200 x 240 cm, weight: 800 kg
Operation1. loading
2. shredding when the upper lid is closed (2 mn)
3. heating by steam (138 °C for 3 mn at 3,8 bars)
4. sterilisation (138 °C for 10 mn at 3,8 bars)
5. cooling down to 80°C achieved by spraying cold water onto the outer walls of the system
6. draining of the cooling and the condensed water
7. vacuum used before opening to condense the steam coming from the sterilised waste
8. discharge of waste into containers ready to be landfilled
Disadvantage- requires water (50 l), electricity (1.4 kWh), high operation & maintenance skills
- cannot treat cytotoxic wastes
- relatively important investement and maintenance costs
Advantage- good operational security
- reduction of the volume of waste by approx. 80%
- environmentally friendly solution
- waste water is sterilized at the end of the cycle and can be drained in the sewer
Remark- units already installed in several countries
- can be associated with a compactor
Picture
Level(s)medium HCFs  
Step(s)treatment and final disposal  
Institution(s)Ecodas  
Last updated 05.11.2008   WHO > WHO sites > WSH > Healthcare Waste > Search > Technical