TY - JOUR
TI - Application of composite construction and demolition debris in heavy metals removal from industrial wastewater
AU - Jelić Ivana V
AU - Antonijević Dragi Lj.
AU - Šljivić-Ivanović Marija Z
AU - Dimović Slavko D
JN - Thermal Science
PY - 2023
VL - 27
IS - 1
SP - 1
EP - 10
PT - Article
AB - The utilization of construction and demolition debris in industrial  wastewater treatment by sorption of Co2+ and Ni2+ ions was investigated.  Selected waste composites are cost-effective and locally available, still  their sorption characteristics and application are not sufficiently  investigated. The samples of concrete, facade, ceramic materials, and  asphalt were characterized in terms of mineral and surface composition,  radioactivity, and stability at different pH values, as well as pH values of  suspension and filtrate and electrical conductivity of the filtrate. The  sorption capacities were determined in batch experimental conditions in one-  and multi-component solutions. Characterization showed different crystal  structures and mineralogical compositions of components. The results of  gamma spectrometry confirmed the radiological safety of samples. Based on  stability testing results, waste materials are suitable for further  utilization and do not pose any risk to the environment. The overall  sorption results suggested that cement-based materials, in addition to high  affinity for the tested ions, represent a sorbent that binds contaminants  firmly enough, reduces their mobility and bioavailability, and are suitable  for removing Co2+ and Ni2+ ions from wastewaters.