DOI: 10.1016/j.watres.2018.12.044
Scopus记录号: 2-s2.0-85060934420
论文题名: Fractional removal of manganese and ammonia nitrogen from electrolytic metal manganese residue leachate using carbonate and struvite precipitation
作者: Shu J. ; Wu H. ; Chen M. ; Peng H. ; Li B. ; Liu R. ; Liu Z. ; Wang B. ; Huang T. ; Hu Z.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 229
结束页码: 238
语种: 英语
英文关键词: Ammonia nitrogen
; Carbonate
; Electrolytic metal manganese residue leachate
; Manganese
; Struvite precipitation
Scopus关键词: Ammonia
; Carbonates
; Carbonation
; Efficiency
; Fourier transform infrared spectroscopy
; Manganese
; Molar ratio
; Nitrogen removal
; Precipitation (chemical)
; Scanning electron microscopy
; Sulfur compounds
; X ray photoelectron spectroscopy
; Ammonia nitrogen
; Ammonia nitrogen removal
; Carbonate precipitation
; Chemical equilibrium modeling
; Fourier transform infra red (FTIR) spectroscopy
; Hydroxide precipitation
; Leachates
; Struvite precipitation
; Manganese compounds
; ammonia
; carbonic acid
; hydroxide
; manganese
; nitrogen
; phosphate
; struvite
; sulfide
; ammonia
; carbonate
; electrokinesis
; leachate
; manganese
; metal
; nitrogen
; precipitation (chemistry)
; struvite
; Article
; controlled study
; crystal structure
; Fourier transform infrared spectroscopy
; heavy metal removal
; hydrogen bond
; leaching
; nitrogen concentration
; pH
; phase transition
; precipitation
; priority journal
; scanning electron microscopy
; X ray diffraction
; X ray photoemission spectroscopy
英文摘要: A comparative investigation of hydroxide precipitation, sulfide precipitation, carbonate precipitation and the struvite formation process for removing manganese and ammonia nitrogen from electrolytic metal manganese residue leachate (EMMRL) was investigated. Chemical equilibrium model-Visual MINTEQ was applied to simulate the chemical reactions and optimize chemical dosages in manganese and ammonia nitrogen removal. Phase transition, morphology, and valence state of the precipitates were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray Photoelectron Spectroscopy (XPS). Results indicated that carbonate precipitation prior to the other two methods for removal of manganese and ammonia nitrogen. The removal efficiency of manganese was 99.9%, when molar ratio of C to Mn was 1.1:1 at pH 9.5, and manganese was removed in the form of MnCO 3 . When molar ratio of P to N was 1.1:1 at pH 9.5, the removal efficiency of ammonia nitrogen was 97.4%, and ammonia nitrogen was removed in the form of struvite. Economic evaluation reveals that the treatment cost was 9.316 $ m −3 when carbonate and phosphate was used to remove manganese and ammonia nitrogen from EMMRL. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/121979
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, China; College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China; Sichuan Jiuzhou Technician College, Ninesheng Road, Mianyang, 621099, China; School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China
Recommended Citation:
Shu J.,Wu H.,Chen M.,et al. Fractional removal of manganese and ammonia nitrogen from electrolytic metal manganese residue leachate using carbonate and struvite precipitation[J]. Water Research,2019-01-01