期刊名称：INTERNATIONAL JOURNAL OF RECYCLING OF ORGANIC WASTE IN AGRICULTURE
印刷版ISSN：2195-3228
电子版ISSN：2251-7715
出版年度：2020
卷号：9
期号：1
页码：75-83
DOI：10.30486/ijrowa.2020.1885285.1002
语种：English
出版社：ISLAMIC AZAD UNIVERSITY, KHOURASGAN BRANCH
摘要：Purpose The research was focused on evaluating phytotoxicity of sewage sludge from two selected wastewater treatment plants in Czech Republic.br / Methods Laboratory experiments were carried out with samples of sewage sludge, which were focused on the evaluation of their phytotoxicity by using the PhytotoxkitsupTM/sup testing set. Specifically, the inhibitory/stimulating effect was established on the growth of roots from the seeds of white mustard (emSinapis alba/em L.). The chosen proportions of sewage sludge were 10%, 30% and 50%. The test was conducted in three repetitions. Additionally, the research also included a comparison of the effect of compost addition to the sewage sludge and its potentially increased stimulating effect on the growth of roots from the seeds of white mustard (emSinapis alba/em L.). Ratios of compost were 5%, 15%, 25% and 50%. The test was conducted in three repetitions.br / Results Stimulating effect on the growth of white mustard (emSinapis alba/em L.) was demonstrated only in samples with the sludge proportion of 10%. The results also show that the addition of compost reduced phytotoxicity of sewage sludge in all three tested ratios (5%, 15%, 25% and 50%).br / Conclusion It was found out that the addition of compost resulted in the decreased phytotoxicity of all tested sewage sludge samples, and hence in their suppressed inhibitory effect.
