• VFAs are decisive for the enrichment of Accumulibacter and stable EBPR activity. N 2 O formation was strongly related to presence Accumulibacter. Amino acids promoted Burkholderiaceae unstable EBPR. Glucose resulted in Saccharimonadaceae GAOs rather than PAOs. Performance enhanced biological phosphorus removal (EBPR) is often investigated with simple synthetic wastewater containing volatile f...

Abstract Basic sanitation is still lacking in many developing countries, resulting significant environmental health risks. The efficient disposal of food waste with potential resource recovery has recently gained much attention. Food considered to be a favourable substrate for the anaerobic digestion (AD) because it easy biodegradability, rich nutrient availability, and high water content. Wast...

Mustard and grapeseed meals are low-cost by-products generated by the oil industry. We aimed to investigate effects of fiber level on concentration volatile fatty acids (VFAs) in ileum cecum, as well microflora enteric methane (E-CH4) pigs. A total 70 Topigs hybrid pigs, 56 ± 3 days old, 20.96 0.26 kg live weight, were randomly allotted two feeding groups: (i) SM diet based sunflower meal; (ii)...

Microbial lipids produced by Y. lipolytica have the potential to be used as feedstock for biodiesel industry, but high costs of pure substrates its production are limiting this application. Volatile fatty acids (VFAs), obtained in anaerobic fermentation organic wastes, inexpensive carbon sources cost-effective microbial lipids. In work, two-stage batch cultures were tested a strategy improve W2...

Accurate determination of the volatile fatty acids (VFA) content of the rumen liquid is indispensable for assessing feedstuffs utilization and effects at ruminal level. Moreover, nowadays feeding strategies require more detailed information such as post-prandial dynamics of VFAs, content of minor VFAs, etc. which leads to the need for precise, rapid and economic determination. In this context, ...

The growth rate and biomass yield efficiency of anaerobic ammonium oxidation (anammox) bacteria are markedly lower than those of most other autotrophic bacteria. Among the anammox bacterial genera, the growth rate and biomass yield of the marine anammox bacterium "Candidatus Scalindua sp." is still lower than those of other anammox bacteria enriched from freshwater environments. The activity an...

Research was conducted to study the effects of biphasic anaerobic fermentation upon an organic fraction of municipal solid waste, and to observe the fate of heavy metals and pathogenic organisms in the acidogenic and methanogenic environments of the biphasic process. The high-solids (16 wt % solids) substrate was packed in a bench-scale, anaerobic, solid-state fermenter with amounts of lead nit...