Monitoring and Management of Anions in Polluted Aqua Systems: Case Studies on Nitrate, Chromate, Pertechnetate and Diclofenac

Ahmed, Rana; Moisy, Philippe; Banerji, Amitabh; Hesemann, Peter; Taubert, Andreas

doi:10.1007/978-3-030-70757-6_11

Cited by 1 publication

(2 citation statements)

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“…The rather low surface areas observed for these materials are comparable with many other examples from the literature [14,16,18,19]. Many ACs made from agricultural waste show surface areas on the order of 10 to ca.…”

Section: Resultssupporting

confidence: 84%

“…Many of these industries release significant amounts of Cr(VI) into surface water bodies, which leads to critical Cr(VI) levels around these manufacturing sites [3,10]. Some of the most common methods to control Cr(VI) levels in water are ion exchange, precipitation, flocculation, reverse osmosis, electrocoagulation, electrodialysis, membrane filtration, solvent extraction, and adsorption [3,5,10,14,15]. Each of these methods has advantages and drawbacks.…”

Section: Introductionmentioning

confidence: 99%

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Activated Carbon from Sugarcane Bagasse: A Low-Cost Approach towards Cr(VI) Removal from Wastewater

et al. 2023

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The potential of pretreated sugarcane bagasse (SCB) as a low-cost and renewable source to yield activated carbon (AC) for chromate CrO42− removal from an aqueous solution has been investigated. Raw sugarcane bagasse was pretreated with H2SO4, H3PO4, HCl, HNO3, KOH, NaOH, or ZnCl2 before carbonization at 700 °C. Only pretreatments with H2SO4 and KOH yield clean AC powders, while the other powders still contain non-carbonaceous components. The point of zero charge for ACs obtained from SCB pretreated with H2SO4 and KOH is 7.71 and 2.62, respectively. Batch equilibrium studies show that the most effective conditions for chromate removal are a low pH (i.e., below 3) where >96% of the chromate is removed from the aqueous solution.

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Section: Resultssupporting

confidence: 84%