The heavy metals cadmium (Cd) and chromium (Cr) are extensively used in industry and
result in water and soil contamination. The highly toxic Cd (II) and Cr (VI) are the most …

Limitation in the availability of natural resources like water is the main drive for focussing on
resource recovery from wastewater. Rapid urbanization with increased consumption of …

Acid mine drainage (AMD) is a global issue and causes harmful environmental impacts.
AMD has high acidity and contains a high concentration of heavy metals and metalloids …

Iron-assisted biological wastewater treatment processes have shown a promising potential
in removing various types of contaminants. Synergistic effects between iron and microbes on …

Gravel-based subsurface-flow constructed wetlands (CWs) amended with a walnut shell
(WS) substrate were established to treat synthetic acid mine drainage (AMD) in this study …

Industrial development has led to generation of large volumes of wastewater containing
heavy metals, which need to be removed before the wastewater is released into the …

Sulfate-rich metal-laden wastewater (SRMLW) shows a significant threat on the ecological
environment and human health. Sulfate-reducing bacteria (SRB) can remove sulfate from …

The aim of this study was to develop a biological method for the simultaneous removal of
sulfate and metals from acidic low-temperature mining effluents. A mixed consortium of cold …

Ion exchange technology removes ionic compounds from waters effectively but treatment of
the spent regenerant is expensive. The bioregeneration of sulfate-laden strong base anion …

This research describes the development of a very cheap mesoporous silica material similar
to hexagonal mesoporous silica (HMS) and using a silicate extract as precursor. This …