Removal of heavy metal ions from wastewater is of prime importance for a clean
environment and human health. Different reported methods were devoted to heavy metal …

The present era is seeking our attention on the dilemma caused by the contamination of the
aquatic system with chromium (Cr) and nickel (Ni). Amid Ni and Cr oxidation states …

This study examined> 140 relevant publications from the last few years (2018–2021). In this
study, classification was reviewed depending on the operation's progress …

Cyanobacterial pigments have an evolving market demand as natural colorants with
numerous health benefits and diversified applications. Nevertheless, scaling up …

The traditional chrome-based leather industry is facing several restrictions due to potential
risks to the environment, especially for the formation and release of hazardous and …

The chromium (Cr) used in leather processing has well-known negative impacts on the
environment, as the disposing of tannery effluent contains a significant amount of Cr …

The review presents advances in the removal of Cr (III) from the industrial effluents
published in the last ten years. Although Cr (III) has low solubility and is less dangerous for …

With the global water demand and environmental concerns, industries need more effective
and efficient wastewater treatment methods. Electroflotation is a wastewater treatment …

Chromium is widely applied in industries as an important metal resource, but the discharge
of Cr (VI) containing wastewater leads to the loss of chromium resources. This study …

The conventional membranes used for separating oil/water emulsions are typically limited
by the properties of the membrane materials and the impact of membrane fouling, making …