Synthesis and characterization of mango leaves biosorbents for removal of iron and phosphorous from contaminated water

• Published in: Applied surface science advances 2022-10, Vol.11, p.100292, Article 100292
• Main Authors: Dey, Subhashish, Sreenivasulu, Anduri, Veerendra, G.T.N., Phani Manoj, A.V., Haripavan, N.
• Format: Article
• Language: English
• Subjects: Biosorbents; Characterization and regeneration; Iron; Optimization; Phosphorous; Water
• ISSN: 2666-5239; 2666-5239
• DOI: 10.1016/j.apsadv.2022.100292

Heavy metals in drinking water pose a threat to the human health. The toxic metals be added into water deliver by manufacturing and housing waste or still from acidic precipitation breaking behind soils and producing into streams, lakes, rivers and groundwater. Iron and phosphorus plays an important role in the development of ecosystems, agriculture and industry, but also becomes a pollutant in the water bodies. Therefore it is necessary to remove iron and phosphorus from water. There are several methods aviliable for removal of iron and phosphorus present in water among these methods the biosorption is a simple, economical and environment-friendly method for removal of iron and phosphorus from water. Biosorption is a physiochemical process that occurs naturally in certain biomass which allows it to concentrate passively and bind contaminants onto its cellular structure. Every biosorbent had different physical, chemical and biological properties for iron and phosphorous removal from water. The mango leaves biosorbent is one of the best biosorbent for removal of iron and phosphorus from water. The optimum sorption over mango leaves biosorbents was obtained at basic pH is 4–8, dosage is 4.3 g, contact time is 60 min, temperature is 25 °C and agitation speed is 100 rpm. The performance of mango leaves biosorbents prepared in optimum conditions for iron and phosphorous sorption processes was associated with the modification in inherent textural and morphological characteristics such as measured by XRD, FTIR, BET and SEM-EDX techniques. The reusability of mango leaves biosorbent was also measured and found that mango leaves does not show any high level of significant change in its performances even after reuses for iron and phosphorous removal.