Performance evaluation of sulfide-based autotrophic denitrification for petrochemical industry wastewater

Decorated reduced graphene oxide transfer sulfides into sulfur and sulfone in wastewater

“…27 Fe 2+ was oxidized to Fe 3+ by the hydroxyl (OH), alkoxy (C-O-C) and carbonyl (C]O), and carboxylic acid (COOH), which were reduced simultaneously with the formation of RGO. The detailed redox reaction mechanisms are described in eqn ( 5)- (7).…”

“…The average sulde concentrations in wastewater from the petrochemical and leather industries are around 150 g L −1 and 360 mg L −1 , respectively. 6,7 Dissolved suldes also have been frequently detected in the municipal wastewater treatment, pulp and paper production, and the manufacturing of coke and steel. 1 The removal of suldes from aqueous solutions is usually done by chemical precipitation, which is dened as suldes reacting with metal ions such as iron and zinc ions to form insoluble precipitates.…”

Tratamento anaeróbio de água residuária salina, seguido de nitrificação/desnitrificação simultâneas e desnitrificação autotrófica com sulfeto

“…A união de diferentes processos auxilia para minimizar o impacto ambiental de águas residuárias no meio ambiente, além de gerarem potencialmente produtos atrativos para a biotecnologia. Um exemplo dessas águas pode ser a produzida em indústrias petroquímicas (ANDREIDES et al, 2021), ou mais conhecida como água produzida em plataformas de óleo e gás, que além elevada salinidade é rica em N e S.…”