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The influence of brown coal and peat on the fatty waste bioutilisation - initial laboratory examination

100%
Wierzba S. L. A., Latala B.
Biotechnologia
|
2000
|
issue 3
193-201
EN
The aim of the paper is to determine whether the addition of brown coal and peat influences the rate of the aliphatic substance biodegradation in oily bleaching soil (OBS) by properly selected bacterial strains. OBS was taken from the NZPT (a fat-processing factory); its characteristics were acidity (pH 4.8) and a 14% aliphatic substance content. Laboratory examination showed that a 35% addition of brown coal and peat provided best conditions for the aliphatic substance degradation process. After 44 days of the experiment, the organic substance reduction was 47.1%, and the fat content was reduced to 0.9%. The application of the composite considerably reduced the period of the OBS biodegradation. In order that low-pH fatty waste could be utiliseed with the aid of bacterial strains, it needs to be neutralised beforehand.
2

Biological utilisation of fatty waste - initial laboratory examination

81%
Latala A., Wierzba S., Latala B.
Biotechnologia
|
2000
|
issue 1
124-134
EN
This article presents the process of biodegradation of aliphatic substances in oily bleaching soil. For the experiment, oily bleaching soil from the NZPT (a fat-processing plant) from the town of Brzeg was used. Its characteristic features were a high aliphatic substance content and low (3.8-4.5) pH. By means of experiment three composites of bacteria and yeast were prepared with the use of field and library strains. In a 44-day process, the mixture of field and library strains caused the aliphatic substance content in the oily bleaching soil to drop by 69-71%. The application of bacterial and yeast strains proved efficient for the aliphatic low-pH waste.
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