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231224s2016 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2015.642
|2 doi
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|a pubmed25n0863.xml
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|a (DE-627)NLM259174033
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|a (NLM)27054736
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Han, Chong
|e verfasserin
|4 aut
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|a Evaluation of the role of inherent Ca(2+) in phosphorus removal from wastewater system
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 14.06.2016
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|a Date Revised 07.12.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a The role of inherent Ca(2+) in phosphorus removal from wastewater was evaluated by batch tests. Precipitates were characterized by an X-ray diffractometer (XRD), Fourier transform infrared spectrophotometer (FT-IR) and scanning electron microscope with an energy dispersive spectrometer (EDS) system. Effects of inherent Ca(2+) on phosphorus removal through basic oxygen furnace slag (BOFS) were also analyzed. The results show that upon adjusting the pH to higher than 7.0, inherent Ca(2+) can remove phosphorus from wastewater and form Ca-P precipitates. Residual phosphorus exhibited a linear decreasing trend with increasing the pH from 7.0 to 10.0 and then remained unchanged at higher pH than 10.0. EDS determined that the precipitates contained the elements Ca, P and O. FT-IR spectra demonstrated that the functional groups of precipitates involved PO4(3-), OH(-) and CO3(2-). XRD indicated that the precipitates may consist of CaCO3 and some Ca-P phosphates such as CaHPO4, Ca4H(PO4)3, Ca3(PO4)2, and Ca5(PO4)3(OH). During the removal process of phosphorus by BOFS, due to the presence of inherent Ca(2+) in wastewater, the removal efficiency and rate of phosphorus increased by 15.5% and by a factor of about 3.0, respectively
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Phosphates
|2 NLM
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|a Waste Water
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|a Phosphorus
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|a 27YLU75U4W
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|a Calcium Carbonate
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|a H0G9379FGK
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|a Oxygen
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|a S88TT14065
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|a Calcium
|2 NLM
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|a SY7Q814VUP
|2 NLM
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| 700 |
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|a Wang, Zhen
|e verfasserin
|4 aut
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|a Wu, Qianqian
|e verfasserin
|4 aut
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|a Yang, Wangjin
|e verfasserin
|4 aut
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|a Yang, He
|e verfasserin
|4 aut
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|a Xue, Xiangxin
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 73(2016), 7 vom: 15., Seite 1644-51
|w (DE-627)NLM098149431
|x 1996-9732
|7 nnns
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|g volume:73
|g year:2016
|g number:7
|g day:15
|g pages:1644-51
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|u http://dx.doi.org/10.2166/wst.2015.642
|3 Volltext
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