Dr. M. M. Mujumdar et al. International Journal of Recent Research Aspects ISSN: 2349-7688, Vol. 7, Issue 2, June 2020, pp. 1-5 © 2020 IJRAA All Rights Reserved page - 1- Treatment of Vehicle Washing Waste Water for Maximum Reuse of Treated Water and Reduce Fresh Water Consumption Dr. M. M. Mujumdar 1 , Sukanya Prakash Rajagolkar 2 , Pramod Jadhav 3 1 Registrar KIT’S, CoEK, 2 M tech Student of KIT’S, CoEK, 3 Asst. Prof. KIT’S, CoEK Abstract- Wastewater generated from car washing activity is one of the major wastewater resources, which contribute effectively in water contamination due to the chemical characteristics of the car wastes. It is observed that ample amount of water is being used during vehicle washing and the waste water generated though the activity is directly discharge into municipal drainage system without any treatment. As vehicle washed water is not highly polluted it can be treated easily and can be reused for vehicle wash again. The present work aimed to decide the treatment of waste water from servicing center and reuse the treated water for car wash and thus reduce the fresh water consumption. For study, the servicing center, The Exotica Car Detailing Studio , Ruikar Coloney, Kolhapur has been selected. Waste water samples were collected and concentration of parameters like pH, BoD, COD, TS, TDS, TSS, O & G, has been checked to know the Average concentration of these pollutant in car wash waste water. Depending on the results, the treatment of car wash wastewater finalized and with respect to same lab scale model prepared involving five process such as Collection, Screening with O & G removal, Chemical coagulation and flocculation , sedimentation and filtration. The coagulation and flocculation was carried out using different dosage and Best results are obtained with the dosing 5, 10, 1.7 mg/lit of Alum, Lime and poly respectively. After passing the waste water through lab scale model treated water characteristics were checked. It is observed that designed treatment system have 65-70% overall efficiency for treatment of raw carwash wastewater. The treated carwash wastewaters meet Environmental Protection rules Discharge standards as per Schedule VI 1986 for the parameters like pH, BoD, CoD, TSS, O & G etc. to dispose the treated water into land surface or for irrigation. Thus the treated water can be discharge into same land to increase or maintain ground water level and reuse again for car wash and thus reduce the fresh water consumption. Keywords—Treatment, Parameters, Model I. INTRODUCTION A car wash is defined as a non-domestic installation for external cleaning of cars. Car wash generates high amount of wastewater approximately 150 to 350 liters per vehicle Car washing consists of oil and grease leaking during engine washing, high suspended solids from brake linings, with sand and dust being washed away. All the accumulated sediments will flow to the drainage system and go into storm water system without any treatment. Hence, endangered the ecosystem when washes away to the drainage system, streams and to the receiving waters, leads to the increased environment pollution. Generally, public perceived that the wastewater from car washing is not severely contaminated compared with other industrial wastewaters. Hence, petite attention is given to the car wash industries. Presently, India has increased in car volumes on the road together with the existing number of cars. It has boosted the car wash industry, leading to the increase in car wash service stations, particularly in rapid development and high population of the focal point area. The carwash wastewater represents one of the contaminated wastes with impurities. It was due to presence of sand and particles, oil and grease, surfactants, detergent, phosphates and hydrofluoric acid. Therefore, the direct disposal for wastewater into the drainage exacerbates the natural water pollution. On the other hand, the discharge of the car wash wastewater directly into sewerage system has negative impact and disturbs the treatment efficiency in STPs. Further, the treatment of wastewater at source might be easier and more effective than that if they have collected into one treatment plant. Due to which the separate treatment process will take sufficient time to remove most impurities and contaminants. Indeed, the treatment of small amount of wastewater does not require a complicated treatment system to produce high quality of treated wastewater. Moreover, the simple treatment system might be more efficiency to produce good quality of treated wastewater suitable for car wash again. The aim of this study is to treat car wash waste water, reuse the same again for car wash and thus reduce the fresh water consumption. II. AREA OF STUDY Exotica Car Detailing Studio, Tarabai Park Kolhapur car wash center has been selected as study area. The source of the fresh water they used is ground water. The fresh water is pumped from ground and as it is hard water after passing through softner collected into storage tank having capacity 5000 lit. Mostly four wheeler car washing activity is carried out over