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Respirometric tests

Two very actual applications of respirometric test were performed on radon pollution and cellular phone field effect on biological system, both of great actuality and object of controversies due to contrasting conclusions reached by different authors, very often basing on unclear and poorly accurate measurements. Particularly for cellular phone field, it was concluded that 900 and 1800 MHz, corresponding to cellular... [Pg.1036]

The results of the respirometric tests are presented in Figures 1 and 2 for 35 °C and 25 °C experiment, respectively. Oxygen uptake data registered by the respirometer was used to monitor biological activity in the reactors. The control represents the oxygen consumption due to endogenous respiration of the microbial cells at the absence of the polymer substrate. The effects of the... [Pg.96]

Respirometric test on a solid anaerobic medium with the measurement of emitted biogases... [Pg.322]

Respirometric test in a liquid aerobic medium with the measurement of CO2 released ... [Pg.324]

Respirometric test on an aerobic solid medimn by measuring CO2 released... [Pg.326]

Figure 14.14. Diagram of an entirely automated set-up of the respirometric test on compost (Siemens)... Figure 14.14. Diagram of an entirely automated set-up of the respirometric test on compost (Siemens)...
In the present contribution an investigation on the biodegradation of blends and graft copolymers of PHB of both natural and synthetic origin and PVA/PVAc blends is reported. The evaluation of the effects of each component in blends and copolymers on both the overall extent of biodegradation and the biodegradation of counterparts, was investigated in aqueous media and in soil by means of respirometric tests. [Pg.330]

Three different films obtained by a hot pressing procedure of powder mixtures containing plasticized PVA, PVAc with and without bactmal PHB were submitted to the biological degradation of soil microorganisms in a respirometric test aimed at simulating soil burial conditions. The compositions of the blend films are summarized in Table 1. [Pg.332]

Biodegradation of these products has been tested in different environments [90]. Ten months of aerobic biological treatment performed by a high-sensitivity respirometric test, brought to the degradation of more than 90% w/w of a product consisting of 60% of maize starch and... [Pg.20]

R. Solaro, A. Corti and E. Chiellini, A new respirometric test simulating soil burial conditions for the evaluation of polymer biodegradation , J Environ Polym Degrad, 1998,6,203-8. [Pg.53]

Figure 6-11 Biodegradation curves of a PVA-based film and filter paper recorded in simulated soil burial respirometric tests. Reprinted with permission from [116],... Figure 6-11 Biodegradation curves of a PVA-based film and filter paper recorded in simulated soil burial respirometric tests. Reprinted with permission from [116],...
Complete biodegradability of the product, measured through respirometric tests like ASTM D5338-92, ISO/CD14855 and CEN proposal xxl or the modified Sturm test ASTM 5209, in a time period compatible with the composting technology (few months). [Pg.104]

ISO/CD 14855 Respirometric test disintegration of the material during fermentation phase, no negative effects on compost quality... [Pg.510]

Figure 6. Biodegradation profiles of PVAc-lignin blends (PVAcLlOs, PVAcL30s) and graft copolymer (LVAO) in mature compost respirometric tests. Figure 6. Biodegradation profiles of PVAc-lignin blends (PVAcLlOs, PVAcL30s) and graft copolymer (LVAO) in mature compost respirometric tests.
Other respirometric tests (BODIS and head space tests)... [Pg.501]

Sinha Ray et al. also conducted a respirometric test to study the degradation of the PLA matrix in a compost environment.Unlike weight loss or... [Pg.101]

See other pages where Respirometric tests is mentioned: [Pg.78]    [Pg.293]    [Pg.476]    [Pg.212]    [Pg.329]    [Pg.300]    [Pg.7805]    [Pg.317]    [Pg.151]    [Pg.156]    [Pg.169]    [Pg.42]    [Pg.65]    [Pg.281]    [Pg.351]    [Pg.510]    [Pg.74]    [Pg.74]    [Pg.75]    [Pg.267]    [Pg.320]    [Pg.536]    [Pg.131]    [Pg.146]    [Pg.93]    [Pg.504]   
See also in sourсe #XX -- [ Pg.293 ]



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