The Application of Red Mud on Restoring Heavy Metal Contaminated Water and Soil

Abstract:

Red mud as environmental restoration materials has the characteristics of low cost, simple process and controlling waste by waste. The paper introduced the application of red mud on heavy metal contaminated water and soil in details. Powdered or granular red mud both has good adsorption efficiency of Cu , Zn, Pb, Ni, Ca, Cd, As and other heavy metal ions in wastewater. Langmiur or Frendlich model can express the adsorption isotherm of red mud on heavy metal ions. Red mud can not only solidify the heavy metals in soils, but also increase the soil microbial activity and population types. At the same time, de-alkali treatment can not be ignored in the process of using red mud avoiding the second pollution to environment, and achieve the zero pollution release of red mud.

• Periodical: Advanced Materials Research (Volumes 225-226)
• Pages: 1262-1265
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.225-226.1262
• Online since: April 2011
• Authors: Yan Fei Ma, Xue Dong Feng
• Keywords: Heavy Metal, In Situ Remediation, Red Mud, Soil, Wastewater

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