Triphosphate removal processes over ternary CaMgAl-layered double hydroxides
Source abstract
Abstract
Mg(2-x)Ca(x)Al-Cl-layered double hydroxides (LDHs, x = 0.0-2.0) were investigated as absorbents to remove triplepolyphosphate (triphosphate, TPP). The removal amount of TPP over Mg(2)Al-LDH was 35.3 mg(P)/g, due to the surface adsorption and intercalation while that over Ca(2)Al-LDH was 107.8 mg(P)/g LDH. attributed to the precipitation of dissolved Ca with TPP. The investigation of TPP removal over ternary Mg(2-x)Ca(x)Al-LDH (x = 0.5-1.5) demonstrated that TPP was removed predominantly either via the surface adsorption/intercalation (x = 0.5-1.0) or Ca-TPP precipitation (x = 1.5). This observation reveals that there is no synergic effect between these removal processes. The detail analyses of the aqueous solution and the solid materials suggest that the release of Al in the form of Al(OH)(4)(-) is responsible for the absence of synergy. (C) 2011 Elsevier B.V. All rights reserved.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Magnesium Oxide Properties and Applications · Phosphorus and nutrient management
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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