The Adsorption of Heavy Metal in Wastewater by Modified Chinese Walnut Shell
- 10.2991/meita-15.2015.85How to use a DOI?
- Adsorbent; Wastewater; Chinese Walnut Shell
This research use the modified Chinese Walnut Shell (MCWS) as adsorbent, purification for the wastewater from mechanical and electrical factory.It examines some factor to the effect such as adsorption time, mass, pH on the adsorption etc. The experiment of actual wastewater research shows that the adsorption rate of Cr6+ increased quickly after first 30 min. After 90 minutes, the trend of adsorbttion rate of Cd2+,Cu2+,Zn2+ increase slowing, after 150 min to reach adsorption equilibrium. when MCWS adsorption dose for 3g/L, removal rate of Cu2+ in practical wastewater can reach 89.21%, the water quality after copper content meet the national second class pollutants maximum allowable emission concentration level 3 standards; Adsorption of Cd2+ removal rate reached 77.89%, after the cadmium content in the water quality meet the national first class pollutant maximum allowable emission concentration standards; Cr6+ removal rate can reach 93.64%, the cadmium content of maximum allowable emission concentration meet the national first class standards.So, the MCWS is a good adsorbent.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Chunguang Yu AU - Dayu Zheng PY - 2015/08 DA - 2015/08 TI - The Adsorption of Heavy Metal in Wastewater by Modified Chinese Walnut Shell BT - Proceedings of the 2015 International Conference on Materials Engineering and Information Technology Applications PB - Atlantis Press SP - 470 EP - 474 SN - 2352-5401 UR - https://doi.org/10.2991/meita-15.2015.85 DO - 10.2991/meita-15.2015.85 ID - Yu2015/08 ER -