The Effectiveness of Macrocomposite Adsorbent for Treatment of COD and Suspended Solid of Car Wash Water Effluent

Abstract

In this study, the macrocomposite adsorbent from aggregates, zeolite, activated carbon, cement, and sand using a continuous flow fixed-bed adsorption column was determined in terms of COD and Suspended Solid (SS) from car wash water effluent. The effects of the flow rate in the adsorption system with different flow rates (ranged of 10-20 ml/min) were also evaluated. Furthermore, the fixed-bed macrocomposite adsorption was conducted and experimental data were fitted for Thomas and Yoon-Nelson models. The effective adsorption of COD and SS was obtained at a lower flow rate of influent concentration. However, due to the potential of the macrocomposite adsorbent for the car wash effluent removal, the treatment efficiency of the adsorbent has shown that the macrocomposite has the potential to be used for the treatment of pollutants of high strength wastewater.

Transition towards Sustainable Carwash Wastewater Management: Trends and Enabling Technologies at Global Scale

“…Chemical modifications could be performed for the cationization of adsorbents, after which they become able to form a strong electrostatic attraction with anionic contaminants. Moreover, abundant surface functional groups, including CO, NH 2 , and aliphatic and aromatic COOH, are essential for binding to various ions in CWW, leading to greater adsorption ability [33]. For instance, activated carbon prepared from bituminous minerals has been used to remove anionic surfactants from CWW, achieving an adsorption capacity of 5.65 mg/g after 2 h [34]), and a macrocomposite adsorbent containing activated carbon, aggregates, sand, zeolite, and cement has been used to remove COD (1.3-1.8 mg/g) and suspended solids (1.5-2.1 mg/g) from CWW in a fixed-bed adsorption column [33].…”

“…Cluster 2 (green) represents other components in CWW, such as COD and TSS. These parameters are enriched in the effluents of vehicle service stations, representing their soluble, particulate, and/or colloidal organic contents [33]. Colloidal particles can reach sewage drains through CWW along with cleaning street waste (e.g., sand, dust, and mud).…”