Authors:
Mirela Alina Constantin, Gheorghe Batrinescu, Ionut Cristea, Valeriu Robert Badescu
Mirela Alina Constantin, Gheorghe Batrinescu, Ionut Cristea, Valeriu Robert Badescu
Conference: International Symposium “The Environment and the Industry”
Date: October 13-14, 2016
Location: Bucharest, Romania
Published: 2016
Keywords:
Bottom ash
Filter ash
Medical waste
Waste treatment
Bottom ash
Filter ash
Medical waste
Waste treatment
Abstract:
Waste represents one of the most important topics in the field of environmental protection due to induced
pollution on all environmental media (water, air and soil). From the three known categories of waste (inert,
non-hazardous, and hazardous), the last one rises serious issues from the point of view of technical and
financial management. A special category of hazardous waste according to national regulations is
represented by medical waste that cannot be disposed without adequate treatment. Experimental results
obtained on treatment of bottom and filter ashes resulted from incineration of medical waste are presented.
Chemical analysis of waste samples and corresponding leachates has revealed that values of many
indicators exceed maximum admissible values for storage on hazardous waste deposits. Two variants of
technological flows were developed for treatment of bottom and filter ash waste: washing under mixing
with acid solution followed by filtration of obtained mixtures and incorporation of waste in “concrete” type
matrices through mixing with sand and cement. These two technological flows variants had as final result
waste types for which leaching indicators values were situated below the legal norms for storage on nonhazardous waste deposits.
Waste represents one of the most important topics in the field of environmental protection due to induced
pollution on all environmental media (water, air and soil). From the three known categories of waste (inert,
non-hazardous, and hazardous), the last one rises serious issues from the point of view of technical and
financial management. A special category of hazardous waste according to national regulations is
represented by medical waste that cannot be disposed without adequate treatment. Experimental results
obtained on treatment of bottom and filter ashes resulted from incineration of medical waste are presented.
Chemical analysis of waste samples and corresponding leachates has revealed that values of many
indicators exceed maximum admissible values for storage on hazardous waste deposits. Two variants of
technological flows were developed for treatment of bottom and filter ash waste: washing under mixing
with acid solution followed by filtration of obtained mixtures and incorporation of waste in “concrete” type
matrices through mixing with sand and cement. These two technological flows variants had as final result
waste types for which leaching indicators values were situated below the legal norms for storage on nonhazardous waste deposits.