Quantifying the difference between CO2-release and carbon conversion in aerobic aquatic biodegradation tests
Fritz, I.; Hergolitsch, L.; Dalnodar, D.; Zerobin, A.
Show abstract
Quantitative biodegradation measurement of polymers (plastic) is, usually, done by monitoring indirect parameter, such as CH4- or CO2-release or oxygen consumption, which are a result of microbial activity. The microorganisms in such a test bottle will metabolise a polymer only if they can use a certain part of the substrate for growth of new biomass (new cells). This part can not be measured with the indirect parameter. In our long time study we investigated a wide range of fast to slowly biodegradable polymers by measuring the biomass growth in addition to the CO2-release. To that end we extended and improved the information about the metabolisation of the polymer for a full carbon balance. We quantified the biomass growth by measuring insoluble, therefore cellular, protein content from the inocula, from the suspensions during the biodegradation test runtime and at the end of each test. The procedure reduces the doubt about full biodegradability of all polymers, but especially that of mixtures and blends composed from different polymers. Our method evaluation is based on the results of 150 biodegradation tests.
Matching journals
The top 9 journals account for 50% of the predicted probability mass.
Similar papers in this journal
- Production, purification and evaluation of biodegrading potential of PHB depolymerase of Stenotrophomonas sp. RZS 7 95%
- A biochemical analysis of Black Soldier fly (Hermetia illucens) larval frass plant growth promoting activity 95%
- Analysis of migration of pathogenic drug-resistant bacteria to soils and groundwater after fertilization with sewage sludge 95%
Similar papers in this journal
- Antibiotic resistance genes and mobile genetic elements removal from treated wastewater by sewage-sludge biochar and iron-oxide coated sand 96%
- First wastewater surveillance-based city zonation for effective COVID-19 pandemic preparedness powered by early warning: A study of Ahmedabad, India 96%
- Impact of pH and removed filtrate on E. coli regrowth and microbial community during storage of electro-dewatered biosolids 96%
Similar papers in this journal
- Long-term monitoring of SARS-CoV-2 in wastewater of the Frankfurt metropolitan area in Southern Germany 95%
- Pig manure treatment strategies for mitigating the spread of antibiotic resistance 95%
- Sustained organic loading disturbance favors nitrite accumulation in bioreactors with variable resistance, recovery and resilience of nitrification and nitrifiers 95%
Similar papers in this journal
- Operational and biochemical aspects of co-digestion (co-AD) from sugarcane vinasse, filter cake and deacetylation liquor 96%
- The feedstock microbiome selectively steers process stability during the anaerobic digestion of waste activated sludge 95%
- Synthetic and biological surfactant effects on freshwater biofilm community composition and metabolic activity 95%
Similar papers in this journal
- Co-culturing Hyphomicrobium nitrativorans strain NL23 and Methylophaga nitratireducenticrescens strain JAM1 allows sustainable denitrifying activities under marine conditions 96%
- Impact of NaCl, nitrate and temperature on the microbial community of a methanol-fed, denitrifying marine biofilm 95%
- Quantitation of human enteric viruses as alternative indicators of fecal pollution to evaluate wastewater treatment processes 95%
"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.