Fe, Mn and me

Article Engineering, Environmental

NaClO-based rapid sand filter in treating manganese-containing surface water: Fast ripening and mechanism

Shu Jiang et al.

Summary: This study aimed to develop new strategies to enhance the manganese removal by the sand filter. The results indicated that modified zeolite exerted the highest adsorption capacity for manganese. Introducing the NaClO oxidation would effectively improve the manganese removal efficiency by the modified zeolite filter, owing to the fast formation of catalytic oxidation capability. These findings are significant in developing simple, practical, and cost-effective strategies for seasonal manganese contamination.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2023)

添加到收藏夹

Article Environmental Sciences

Synergistic effects of prokaryotes and oxidants in rapid sand filters treatment of groundwater versus surface water: Purification efficacy, stability and associated mechanisms

Haiyang Yang et al.

Summary: The study demonstrated that the addition of potassium permanganate (KMnO4) significantly reduced the start-up period for treating groundwater and surface water in RSF systems, enhancing manganese removal rates. Prokaryotes played a crucial role in system performance and NH4+-N removal, enriching bacterial community diversity and improving RSF stability when facing hydraulic loading shock. The synergistic effect of KMnO4 and prokaryotes provided new insights into manganese and ammonium elimination in RSF systems, beneficial for practical applications.

CHEMOSPHERE (2022)

添加到收藏夹

Article Engineering, Environmental

Oxidants-assisted sand filter to enhance the simultaneous removals of manganese, iron and ammonia from groundwater: Formation of active MnOx and involved mechanisms

Haiyang Yang et al.

Summary: The study found that adding potassium permanganate significantly improves manganese removal efficiency and shortens the start-up period; there is a good correlation between manganese deposition concentration and removal rate; potassium permanganate facilitates the production of MnO2 and promotes manganese conversion.

JOURNAL OF HAZARDOUS MATERIALS (2021)

添加到收藏夹

Article Engineering, Environmental