ABSTRACT
Saline water contains many salts which is a threatening problem of the current time. It causes several problems for humans and aquatic lives as well as for vegetation. The generation of salinity in the groundwater includes many factors such as normal and manmade. The main concern here is the treatment of saline water. For saline water therapy, a variety of traditional techniques are used. However, because of their high biodegradability and low toxicity, these approaches are only useful for low saline water. For successful treatment of the mature and highly saline sample, advanced technologies are needed. Advanced oxidation processes (AOPs) are well suited to the treatment of such complex wastewaters as those described in the literature. Following a review of the literature, it can be inferred that Fenton-based methods are useful for treating different high/low-intensity saline water. Due to their flexibility, cost-effectiveness, and durability for the reduction of high salinity, Fenton-based approaches are commonly used and accepted, as stated in several studies. Furthermore, the procedure is comparatively cost-effective due to the use of fewer chemicals, simple equipment, and low-energy consumption. The traditional and advanced Fenton’s methods, as well as their extensive reaction mechanisms and applications for saline water treatment, are discussed in this study. The impact of controlling variables such as pH, chemical dose, and reagent ratio on treatment efficiencies is also highlighted. Additionally, the removal of different salts and compounds from saline water, as well as combined procedures and pre/post-treatment options, are discussed. The scope of prospective research is summarized to find long-term alternatives to the limitations of these approaches for successful saline water treatment.
