Paradigms of homo/heterogonous Fenton systems incorporating 'Solar Energy' based on 'Emerging Pollutants' removal– challenges, advancements and visualized bibliometric analysis

ABSTRACT

Today’s necessity is to achieve a sustainable environment. But, over the past three decades, various research articles reported the presence of new compounds in aquatic environment as well as in wastewater effluents, called ‘Emerging Pollutants’. Although such materials are widespread in water effluents, their toxicity and impacts on both human health and the ecosystems are poorly understood since there are no regulatory data for those contaminants. However, ever increasing of the socio-economic awareness and scientific information, scientists have become more concern for the Emerging Pollutants (EPs), widespread and their distribution in the environment. Their successful control represents the primary challenge to the industrial sector and academia. Therefore, developing technological advancement in eco-friendly environmental wastewater treatment strategies is a must. This drive the multi-disciplinary blend of chemical science, environmental engineering and industry to realise this concern from both an operational and public health standpoint. The boom of Fenton or Fenton-type modified reactions offers potential opportunities for innovative remediation techniques. The aim of this review is to update and contribute the recent developments to overcome the Fenton reaction obstacles such as acidic environment, ferric sludge production and reagent’s cost that limits its application for better frameworks. In particular, recent Fenton’s reaction approaches on the EPs removals deserve further research to adopt the system and could give rise to real applications.

KEYWORDS:

• Emerging pollutants
• Fenton’s reagent
• modified fenton reaction
• sludge reuse

Statement of novelty

Emerging pollutants have been emerged as unregulated materials and must be treated prior to disposal. Fenton treatment based on modified Fenton reaction techniques and solar energy is a viable option. However, there is a lack in the literature dealing with EPs treatments based on solar Fenton’s reaction. These modified Fenton including reuse of iron from waste streams, iron support mediums, magnetised catalyst and non-iron catalyst are illustrated and reviewed specially for EPs to sustainable development. Hence, this article reviews the modified different solar/Fenton types for EPs elimination as a novel critical literature review article dealing with solar and modified Fenton reaction for EPs elimination.

Disclosure statement

No potential conflict of interest was reported by the author(s).