Possibilities of applying biosorption systems for ballast water treatment

Abstract

This article represents applying of biosorption process for the treatment of wastewater, contaminated with light oil products, SC "Klaipedos nafta", which works in the field of transshipment of oil and its products in Lithuania, has installed biosorbers for the treatment of ballast and bilge water from the vessels, Biosorption process is sustained by integrated running of the Granulated Activated Carbon (GAC) and the active branches of particular microorganisms, This wastewater treatment method is preeminent for treatment of this kind of wastewater, comparing with the treatment efficiency of other methods, Wastewater is pumped into biosorbers after flotation and remaining concentration of Total Petroleum Hydrocarbons (TPH) varies about 2 mg/L At the very beginning of the biosorbers operation wastewater treatment efficiency of 0.2 mg/I was reached, For the process control main parameters are being analyzed: sorption capacity of the activated carbon, biomass amount and enzymatic activity of the microorganisms. Interdependence of the values of these parameters and treatment efficiency according to TPH is being established, Obtained results support the theory of biosorption process and the process workability for the treatment of wastewater, polluted with light oil products, In this article there are given principle technological solutions and parameters of the biosorbers in SC "Klaipedos nafta", KEYWORDSBiosorption application; Petroleum hydrocarbons treatment; Ballast and bilge waste water treatment; Wastewater treatment efficiency 289 https://doi.