Deleted Journal, Год журнала: 2022, Номер unknown, С. 33 - 44

Опубликована: Авг. 11, 2022

Biochar made from agricultural waste products can be used as a low-cost adsorbent targeting dissolved organic matter (DOM). In water treatment plant (WTP), DOM reacts with chlorine-based disinfectant and forms carcinogenic disinfection by-products. The objective of this study was to investigate the applicability bamboo biochar derived wood vinegar production an for removal subsequently trihalomethane formation potential (THM-FP) reduction. Raw (BCRaw) 800°C post-heated (BC800) tested its surface characteristics including scanning electron microscopy, Fourier transform infrared spectroscopy Brunauer, Emmett Teller analysis. post-pyrolysis increased area 90.3 274 m2 g-1. natural collected Tapra WTP, Khon Kaen, Thailand, which uses Chi River source. adsorption capacities dissolve carbon at 24-h equilibrium (Qe) BCRaw BC800 were 0.148 0.551 mg-C g-1 adsorbent, respectively. kinetics described well pseudo-second order model, implied chemisorption multiple mechanisms. While THM-FP relatively unaffected by BCRaw, resulted in 12.4% reduction preferential precursor chloroform over other THMs observed. Fluorescent excitation-emission matric employed characterize before after biochar. achieved greater terrestrial humic-like fulvic-like DOM, due presence oxygen functional groups, enhances capacity aromatic compounds. Overall, shows use material THM removal.

Язык: Английский