Application of quantitative XRD on the precipitation of struvite from Brine Water

11th Joint Conference on Chemistry in Conjunction with the 4th Regional Biomaterials Scientific Meeting

材料科学;化学;生物科学

Heraldy, E.^1,2 ; Rahmawati, F.^1,2 ; Heryanto^1 ; Putra, D.P.^1

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Indonesia^1

Porous Materials Research Group, Jl. Ir. A. Sutami 36A, Kentingan, Surakarta

57126, Indonesia^2

关键词: Amorphous content;    Brine water;    Crystal phasis;    Molar ratio;    Phase samples;    Powder XRD;    Quantitative x ray diffraction;    Struvite formation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/172/1/012015/pdf
DOI  :  10.1088/1757-899X/172/1/012015

来源: IOP

【 摘 要 】

The present studies have been conducted to quantify the varied phases in struvite formation from brine water as the magnesium source. The quantitative X-ray Diffraction (QXRD) method was performed to quantitatively determine the crystal phases and amorphous content of struvite samples. Substantial phase samples were employed quantitative analysis to calibrate against known phase composition information by Rietveld refinement on powder XRD data. The results showed that brine water could be considered as magnesium source the formation of struvite products. The study demonstrated that in general, the high N:P molar ratio (both pH 9 and 10) might lead to the significant formation of struvite.