Szukana fraza: [Abstract = "In thermal conditioning various technological parameters are applied \(from 60\-80°C to even 250°C, retention times from 15 min. to 2 hours\). Effectiveness of the processes can be increased by using combined processes, e.g. thermal treatment and chemical stabilization. Chemical methods are at present mainly applied in laboratory scale. They include alkaline and acidic pretreatment or advanced chemical oxidation methods."]

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