Small-scale Formation of Struvite by Electrochemical Deposition and its Characterization
Precipitates with high content of struvite were harvested by electrochemical deposition method from an aqueous solution containing Mg2+, NH4 + and HnPO4 3-n ions. The generation of OH-via electrochemical reduction of dissolved oxygen increased the interfacial pH near cathode, resulting into the formation of struvite precipitates. The structure, the morphology, the composition and the thermal properties of the harvested precipitates were investigated by X-ray diffraction (XRD), micro-image analysis by high-resolution color digital camera, Infrared (IR) spectra, energy-dispersive spectrometry(EDS), element analysis (EA) and thermogravimetric analysis (TGA). Especially a new and novel calculation method was introduced to determine exactly the struvite content in the precipitates harvested by electrochemical deposition.
struvite electrochemical deposition XRD IR EDS TGA
WANG Chong-chen HAO Xiao-di
School of Environment and Energy Engineering,Beijing University of Civil Engineering and Architecture,Beijing,100044,P.R.China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）