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Enhanced lipidic algae biomass production using gas transfer from a fermentativ...

In order to produce single-cell oil for biodiesel, a yeast and a microalga were, for the first time, grown in two separate reactors connected by their gas-phases, taking advantage of their complementary nutritional metabolisms, i.e., respiration and photosynthesis. The yeast Rhodosporidium toruloides was used for lipid production, originating a carbon dioxideenriched outlet gas stream which in turn was used to ...

Staged and non-staged anaerobic filters: performance in relation to physical an...

This work describes a comparative study of staged and non-staged anaerobic filters for treating a synthetic dairy waste. The effect of decreasing the hydraulic retention time from 2 days to 10 h at a constant substrate concentration of 9 g COD dm-3 by applying lateral feedings in the staged digester was evaluated with respect to overall reactor performance, in comparison with a conventional up-flow anaerobic fi...

A new device to select microcarriers for biomass immobilization : application t...

A new device was designed to compare the biomass retention capacity of different microcarriers. Microcarriers were placed in as many as 28 independent, parallel minibioreactors under selected and identical flow conditions. Sepiolite pozzolana, clay, and foam glass (Poraver™) were examined for biomass retention capacity, characterized in terms of attached volatile solids and specific methanogenic activity, and e...

A new method to study interactions between biomass and packing material in anae...

A new anaerobic, random-packed, fixed-bed reactor, where the fixed bed matrix is distributed between up to 36 independent mini-bioreactors, has been developed to investigate biomass-support interactions in anaerobic filters. Glass, Plexiglas and polyvinyl chloride (PVC) of three sizes all gave similar results though entrapped biomass was maximal at 3 g/L of matrix void volume for the smallest size and a maximum...

Staged and non-staged anaerobic filters : microbial activity segregation, hydro...

This work describes a comparative study of staged and non-staged anaerobic flters for treating a synthetic dairy waste under similar operating conditions. The effect of increasing the substrate concentration from 3 to 12 g COD dmˉ³ at a constant hydraulic residence time (HRT) of 2 days was evaluated with respect to overall reactor performance, biogas production, volatile fatty acids profiles along the height, m...

Physico-chemical properties of porous microcarriers in relation with the adhesi...

Influence of lipid acclimatization on the oleic acid toxicity towards methanoge...

A new device to select microcarriers for biomass immobilization : application t...

A new method to study interactions between biomass and packing material in anae...

Influence of lipid acclimatization on the support matrix colonisation in anaero...