Leaching of chromium from coal ash using citric acid, oxalic acid and gluconic acid by batch leaching procedure

• Main Authors: Pangayao, Denvert, Gallardo, Susan
• Format: text
• Published: Animo Repository 2014
• Subjects: Leaching; Chromium; Coal ash; Organic acids; Taguchi methods (Quality control); Chemical Engineering
• Online Access: https://animorepository.dlsu.edu.ph/faculty_research/2131; https://animorepository.dlsu.edu.ph/context/faculty_research/article/3130/type/native/viewcontent
• Institution: De La Salle University

This study aims to leach chromium from coal fly ash using citric acid, oxalic acid and gluconic acid. Fly ash obtained from coal ash pond comprises of 28 ppm chromium. After the batch leaching procedure, the results show that 27.66% of chromium was leached using 0.3 M citric acid with the contact ti...