A novel approach to the recycling of polystyrene is reported here; polystyrene is converted to a biodegradable plastic, namely polyhydroxyalkanoate (PHA). This unique combinatorial approach involves the pyrolysis of polystyrene to styrene oil, followed by the bacterial conversion of the styrene oil to PHA by Pseudomonas putida CA-3 (NCIMB 41162). The pyrolysis (520 degrees C) of polystyrene in ...

The use of organic liquids as vectors to enhance mass transfer has been applied since the 1970s. However, mass transfer in three-phase reactors is only partially understood. This paper aimed to characterize oxygen transfer in three-phase reactors containing air as gas, silicone oil as vector andwater as aqueous phase. Amass transfermodel that considers separately air/vector, vector/water and ai...

With the rapid development of world economy, petrochemical industry energy reserve strategy and production demand increase, storage tank farm scale is also expanding, continue to large, intensive direction development. In recent years, there are many disastrous accidents such as oil leakage, explosion combustion tank, so it necessary study behavior tank. This paper studies mechanism in crude ar...

This article is mainly based on the characteristics of marine environment islands and coastal seas current corrosion problems storage tanks as well their main locations, analyse reasons for formation consider potential safety hazards, so to propose several effective tank protection methods, which has important positive significance long-term development oil tanks.

Thirty-five years ago, B.F. Skinner (1976) lamented a decreasing trend in the prevalence of cumulative records in the Journal of the Experimental Analysis of Behavior ( JEAB). The editorial began with the two memorable lines, ‘‘Evidently we have not long to wait for an issue of JEAB without a single cumulative record! I shall not miss the records so much as the kinds of experiments that could s...