engleski

Biological and physico-chemical treatment possibilities for landfill leachate in Zagreb, Croatia

The leachate from municipal solid waste landfill is highly polluted, so it is categorized as waste water. Its disposal poses an ecologic problem and presents a hygienic risk. The present study presents the experiences of the in vitro experiments of the biological and chemical purification of leachate. From the obtained data it is to conclude that satisfactory biological purification can be obtained by addition of the phosphates and zeolite tuff into leachate as well as by means of aeration. The effect of the chemical disinfection process, using raw leachates mixture with the hydrogen peroxide, was illustrated as an improvement of organoleptic properties, the oxidation of organic matter and ammonia content as well as the significantly decrease of heterotrophic bacteria and coliform bacteria.

leachate; purification; aeration; zeolite; disinfection; hydrogen peroxide

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