Indian Journal of Science and Technology

Abstract

Objectives: To study the effluent water quality and to compare the number of additional services within the petrol stations.

Methods: Effluent water quality of 22 petrol stations around the Ping River in Thailand was assessed. The effluent samples were collected by grab sampling method, analyzed the water quality index (pH, COD, SS, and O&G) in a laboratory, and compared the data of result analysis by mean and a percentage between the petrol stations with additional services and the petrol stations without additional services.

Findings: The results of the research found that the petrol stations were only passed the standard criteria according to effluent quality of 45.45 percent. The data were separately analyzed according to the effluent quality index, the pH values passed the highest criteria of 90.91 percent, and the COD values passed the least criteria of 54.55 percent. Comparison of data between the additional services and the effluent quality within the petrol stations found that most of the petrol stations without additional services passed the standard criteria more than the petrol stations with additional services.

Application/ improvements: Good effluent management should focus on additional services within stations, the future should study the knowledge and understanding of entrepreneurship, area, and determine the quantity of accessing those additional services.

Keywords: Effluent Quality, Petrol Stations, Monitoring, Northern Thailand.