Removal of EDCs from Industrial Sludge by Electron Beam
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Endocrine disrupting chemicals (EDCs) and potential EDCs are mostly man-made,found in various materials such as pesticides, additives or contaminants in food, and personal careproducts. The high energy ionizing radiation has the ability to remove the EDCs with a very highdegree of reliability and in a clean and efficient manner. The ionizing radiation interacts withEDCs both directly and indirectly. Direct interaction takes place with EDCs and the structure ofEDCs is destroyed or changed. During indirect interaction, radiolysis products of water result inthe formation of highly reactive intermediates which then react with the target molecules, culminatingin structural changes. To confirm the radiation reduction of EDCs in industrial sludge, apilot scale experiment up to 50 kGy of electron beam (EB) was conducted with samples from thetextile dyeing industries. The experimental result showed the over 90% of reduction of Nonylphenol(NP) and Di(2-ethylhexyl) phthalate (DEHP) at around 10 kGy of absorbed doses.
Abstract
Endocrine disrupting chemicals (EDCs) and potential EDCs are mostly man-made,found in various materials such as pesticides, additives or contaminants in food, and personal careproducts. The high energy ionizing radiation has the ability to remove the EDCs with a very highdegree of reliability and in a clean and efficient manner. The ionizing radiation interacts withEDCs both directly and indirectly. Direct interaction takes place with EDCs and the structure ofEDCs is destroyed or changed. During indirect interaction, radiolysis products of water result inthe formation of highly reactive intermediates which then react with the target molecules, culminatingin structural changes. To confirm the radiation reduction of EDCs in industrial sludge, apilot scale experiment up to 50 kGy of electron beam (EB) was conducted with samples from thetextile dyeing industries. The experimental result showed the over 90% of reduction of Nonylphenol(NP) and Di(2-ethylhexyl) phthalate (DEHP) at around 10 kGy of absorbed doses.
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