VNU Journal of Science Earth and Environmental Sciences, Год журнала: 2024, Номер unknown

Опубликована: Окт. 24, 2024

:Industrial wastewater contains high ammonium concentration, leading to difficulties in the treatment process using conventional methods. This study used heat distillation method following alkalization of remove and recover from an industrial plant. The influent has a pH 6.41 very concentration (28000 mgN/L). system was designed consist heating, cooling, recovery units. After alkalinization, sample boiled electric stove, ammonia vapor passed through cooler condensed into liquid ammonia, recovered. controlling factors for removal efficiency including solution (7-12) time (0.5, 10, 15, 30, 60 90 min) were investigated. Experimental results show that optimal conditions are at 12 30 min, corresponding 100% efficiency. In terms recovery, ice cooling mode more efficient than tap water vacuum evaporating modes. Final reached 215 mgN/L potential production.

Язык: Английский