Clay- and zeolite-based biogeosorbents: modelling and properties

Abstract

This work presents data on the mineral and chemical composition of zeolite-containing and clay rocks considered as carriers for oil-oxidizing microorganisms, as well as their textural characteristics. The authors proved the use of mineral sorbents based on clay and zeolitecontaining rocks for design of a biogeosorption material of destructive type. The minerals met the requirements for oil sorbents (environmental compatibility, oil capacity, feasibility), and were biocompatible with Biotrin consortium. Hydrocarbon-oxidizing microorganisms combined with mineral sorbents had a significant destructive potential. The degradation of petroleum hydrocarbons by biogeosorbents modeled on 551, 541-31, 539-40 samples were 77, 60 and
65.5 % for 4 days, respectively.
Keywords: biogeosorbents, clays, zeolites, Biotrin, petroleum hydrocarbons, n-alkanes, biodegradation, sorption Kulcsszavak: biogeoszorbensek, agyagok, zeolitok, Biotrin, ásványolaj-szénhidrogének, n-alkánok, biodegradáció, szorpció

1. Introduction

Today, zeolite and zeolite-alumina composites, based on zeolite and clay rocks, are used in a wide area of industry and everyday life primarily as sorbents because of their technical, chemical, biological and medical properties. Water and soil pollution with hydrocarbons during exploration, mining, transportation, storage and processing should be noted to remain a significant environmental problem.

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