Alternative Fuel Generation from Dangerous Solid Waste in a Protected Environmental Area

Pedro Mora, Daniel Barettino, Antonio Ponce, Laura Sánchez-Martín and Bernardo Llamas
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Pedro Mora: Department of Geological and Mining Engineering, Universidad Politécnica de Madrid, ETSI Minas y Energía, c/ Ríos Rosas 21, 28003 Madrid, Spain
Daniel Barettino: Department of the Environment and Land Use Planning, Regional Government of Madrid, c/ Alcalá 16, 28014 Madrid, Spain
Antonio Ponce: GVC Valorización, c/ Tecnología 2, 28096 Madrid, Spain
Laura Sánchez-Martín: Department of Geological and Mining Engineering, Universidad Politécnica de Madrid, ETSI Minas y Energía, c/ Ríos Rosas 21, 28003 Madrid, Spain
Bernardo Llamas: Department of Geological and Mining Engineering, Universidad Politécnica de Madrid, ETSI Minas y Energía, c/ Ríos Rosas 21, 28003 Madrid, Spain

Energies, 2022, vol. 15, issue 2, 1-14

Abstract: The present investigation project aims to evaluate the extraction of contaminant material from two settling ponds to be used as alternative fuel in two cement plants. The extraction is carried out through mechanical means, and after that extraction, two options are compared: energy recovery and incineration. Through energy recovery, a potentially contaminated area is decontaminated and its waste is used; its high calorific value makes this option a viable one. The waste extraction is carried out through mechanical means due to the high density and viscosity of the waste. Because of these characteristics, the waste undergoes an on-site security adaptation to stabilize it, reduce declivity risk and make it suitable to be handled and moved. The second treatment is carried out in external installations where the final product is obtained (alternative fuel), which is to be used at industrial kilns. The entire described process shows a difference on the consumed energy of 6060.42 kWh/t waste between the two options under study: waste incineration and energy recovery. In addition, it also reduces CO 2 emissions on 2.178 t CO2 /t waste .

Keywords: waste to fuel; solid waste; settlings pond; cement plants; CO 2 emissions (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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