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Antibiotics are a broad group of drugs that are used in human and veterinary medicine. Antibiotics are slow to be degraded, so they can live for a long time in water, and this leads to the possibility of bioaccumulation in the environment. After metabolism, antibiotics are released into the aquatic environment. These compounds can be removed in many different ways, but after reviewing the treatment by advanced oxidation process (AOPs), it was found that this treatment has the ability to completely remove antibiotics from wastewater. This paper provides an overview of the Advanced Oxidation Processes (AOPs) for treatment of antibiotics in wastewater and has focused on Nonphotochemical processes (Ozonation), Photochemical Processes (such as photo-Fenton), heterogeneous photocatalysis (TiO2 / UV systems) were reviews. These methods achieved very high removal efficiency of antibiotics from industrial wastewater.

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The presence of oil in water bodies posses hazards to aquatic life. The essential target of this research is to examine the feasibility using Fish scale as biosorbents to clear up the oil spills in water body. The biosorbent used in this study was fish scale (FS). The effect of absorbent weight, concentration of oil, and pH were investigated using batch system to find the optimum condition. The maximum removal efficiency was 93% at pH 7 and at the concentration of 400 ppm. The equilibrium isotherm data were studied using Langmuir and Freundlich isotherm model and it was found that the data fitted well with Freundlich isotherms.

Yeast is a single-celled organism that is classified as a member of the fungi kingdom. Yeast has a significant role in the biological treatment of wastewater. The bio-sorption technology is applied to remove many pollutants such as heavy metal, dyes, and organic materials such as phenol. This technology is characterized by being inexpensive and environment-friendly. This research reviews yeast’s effectiveness as an adsorbent in removing heavy metals, dyes, and phenol from wastewater. The effects of some factors such as the concentration of pollutants, pH of the solution, and yeast mass in the bio-sorption process are reviewed. The bio-sorption process at equilibrium can be described using the isotherm model such as Langmuir and Freundlich isotherm models reviewed in this paper.