Removal of petroleum compounds from aqueous solutions in the aeration and reverse osmosis system

Abstract

A B S T R A C TThe prevalent occurrence and use of oil lead to an increasing environmental pollution by petroleum products. Petrochemical-based products penetrate the soil and then indirectly get to water along with the sewage and stormwaters that wash away the surface of streets and roads. The object of this work was to study the removal of oil from water. The study examined the use of test system: aeration-reverse osmosis (RO) in order to remove C 7 -C 35 petroleum compounds from aqueous solutions. Tests were conducted using the model water-distilled water with the addition of diesel oil and gasoline. The effectiveness of the integrated process was evaluated based on the degree of petroleum compounds removal from the water after various stages of the process, and after completion of water purification. Hydraulic performance of the membrane was also investigated. Six test series, starting from 2,997.87 to 96.5 mg/dm 3 concentration, were performed. The test water was aerated and then subjected to the RO process. Determination of petroleum hydrocarbons was made using a gas chromatograph according to Polish Norm PN-C-04643 and expressed as mineral oil index.

Temporal variation of bacterial population and response to physical and chemical parameters along a petrochemical industry wastewater treatment plant

“…According to the National Water Agency from Brazil -ANA (Agencia Nacional das Águas 2013), the industrial sector consumes approximately 18% of the total water intended for population uses. In view of their high toxicity, effective methods of effluent treatment should be investigated in order to protect human health and prevent damage to water resources (Piekutin and Skoczko 2016).…”