Assessment of respiration activity and ecotoxicity of composts containing biopolymers
PBN-AR
Instytucja
Wydział Rolniczo-Ekonomiczny (Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Ecotoxicology and Environmental Safety
ISSN
0147-6513
EISSN
Wydawca
DOI
URL
Rok publikacji
2013
Numer zeszytu
89
Strony od-do
137-142
Numer tomu
Identyfikator DOI
Liczba arkuszy
0.5
Autorzy
Słowa kluczowe
en
Compost, Biodegradable polymer, Respiration activity, Biotest, Toxicity
Streszczenia
Język
en
Treść
The research was conducted to determine if introducing biodegradable polymer materials to the composting process would affect selected biological properties of mature compost. Determination of biological properties of composts composed of testing their respiration activity and toxicity. Respiration activity was measured in material from the composting process by means of OxiTop Control measuring system. The ecotoxicity of composts was estimated by means of a set of biotests composed of three microbiotests using five test organisms. Introduction of polymer materials caused a decrease in respiration activity of mature compost. Similar dependencies as in the case of mass loss were registered. Compost to which a biodegradable polymer with the highest content of starch was added revealed the smallest difference in comparison with organic material composted without polymers. Lower content of starch in a polymer caused lower respiration activity of composts, whereas microorganism vaccine might have accelerated maturing of composts, thus contributing to the smallest respiration of compost. In composts containing biopolymers the following were observed: an increase in germination inhibition − 2.5 times, roots growth inhibition − 1.8 times, growth inhibition of Heterocypris incongruens − four times and luminescence inhibition of Vibrio fischeri − 1.6 times in comparison with the control (compost K1). Composts containing biopolymers were classified as toxicity class III, whereas the compost without polymer addition as class II.
Inne
System-identifier
URd97a554e034e4e4f87884bd191cbe3bc
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