GREEN INNOVATIONS IN FLOTATION, PROTEIN SEPARATION, FLUE GAS REUSE, NEW PROCESS SYSTEMS, SULFIDE PRECIPITATION, CHROMIUM REMOVAL, AND TANNERY WASTE TREATMENT
Wang, LK and Wang, MHS (2022). Green innovations in flotation, protein separation, flue gas reuse, new process systems, sulfide precipitation, chromium removal, and tannery waste treatment. In: “Evolutionary Progress in Science, Technology, Engineering, Arts and Mathematics (STEAM)”, Wang, LK and Tsao, HP (eds.), 4 (7E), STEAM-VOL4-NUM7E-JULY2022. ISBN 978-0-9890870-3-2. 119 pages. July 2022., Lenox Institute Press, Massachusetts, USA.............ABSTRACT: This publication reviews the technical information from UNIDO, USEPA and LIWT, and covers the following subjects concerning the leather tanning industry: industry description, subcategories, tannery operations, pollutants, effluent discharge limitations, Best Practical Control Technology Achievable (BPCTA), Best Available Technology Economically Achievable (BATEA), current waste treatment systems, environmental problems, process improvements, new process equipment, innovative process systems, independent PC WW Treatment System, DAF, DAFF, combined DAF-DAFF, dissolved protein analysis and removal, BPCTA and BATEA examples, dissolved carbon dioxide flotation (DCDF), carbonation, flue gas recycle, GHG reduction, ferrous sulfide precipitation process for removing toxic sulfides, ferrous sulfide sludge recycle for removing toxic chromium (III) , physicochemical sequencing batch reactor (PC-SBR); biological flotation aerobic-anoxic contact stabilization process, membrane biological flotation reactor (MFBR), tannery discharge limitations, and glossary. This publication is one of the authors' memoirs. The researchers around the world are invited to investigate the green innovations explored by LIWT for further improvement
