The characteristics of Zn in highly alkaline wastewater by CO2 aerated
Fengling Hao, Hehua Gao, Lei Wang
Available Online March 2016.
- https://doi.org/10.2991/icmmct-16.2016.144How to use a DOI?
- Co-precipitation, highly alkaline wastewater, CO2, PHREEQC, adsorption.
- In the process of CO2 aerated, the variation of pH value, the characteristics of Carbonate precipitation and hydroxide precipitate by Zn, the adsorption and co-precipitation characteristics with the hydrated oxides of iron and aluminum and calcite have been researched. After CO2 was aerated to the high alkaline wastewater, the content of Zn after filtering was measured by Inductively Coupled Plasma (ICP), and then analyzed the precipitate by X-ray powder diffraction (XRD). The co-precipitation characteristics of Zn in highly alkaline waste by CO2 aerated was simulated by PHREEQC. The results showed that CO2 neutralized the high alkaline waste effectively, and the content of Zn was significantly decreased. The outcome showed that the sediment mainly consisted of CaCO3 and Zn. With CO2 continuing aerating, co-precipitation with CaCO3 created. Iron and aluminum hydroxide can adsorbent Zn, but the phenomenon is not obvious because colloid contains less.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Fengling Hao AU - Hehua Gao AU - Lei Wang PY - 2016/03 DA - 2016/03 TI - The characteristics of Zn in highly alkaline wastewater by CO2 aerated BT - Proceedings of the 2016 4th International Conference on Machinery, Materials and Computing Technology PB - Atlantis Press SP - 743 EP - 746 SN - 2352-5401 UR - https://doi.org/10.2991/icmmct-16.2016.144 DO - https://doi.org/10.2991/icmmct-16.2016.144 ID - Hao2016/03 ER -