A Novel Eco-Friendly Circular Approach to Comprehensive Utilizing Bittern Waste and Oyster Shell

Efficient waste management, especially in relation to swaste reuse, has become a pressing societal issue. The bittern generated during salt production and discarded oyster shells present formidable environmental challenges of resources for some coastal regions. Therefore, this work developed two-stage circular process the environmentally friendly efficient utilization both materials. In first stage, CO2 gas an organic extraction phase comprising Tri(octyl-decyl)amine (R3N) isoamyl alcohol were introduced into obtain MgCO3·3H2O (s). second stage involved reacting reacted with shell powders produce CaCl2·2H2O (s) (g) regenerate R3N. This focused on investigating yield regeneration ratio R3N, which are crucial indicators two stages process. results indicate that, under optimal operating conditions, maximum 87% was achieved, R3N reached 97%. Furthermore, reaction mechanism thermodynamic functions elucidated as element achieving findings offer sustainable solution pollution from shells, provide promising avenue green chemical production.