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Continuous And Semicontinuous Reaction Systems For High-Solids Enzymatic Hydrolysis Of Lignocellulosics, A González Quiroga, A Bula Silvera, Ricardo Vasquez Padilla, A C. De Costa, R Maciel Filho
Continuous And Semicontinuous Reaction Systems For High-Solids Enzymatic Hydrolysis Of Lignocellulosics, A González Quiroga, A Bula Silvera, Ricardo Vasquez Padilla, A C. De Costa, R Maciel Filho
Dr Ricardo Vasquez Padilla
An attractive operation strategy for the enzymatic hydrolysis of lignocellulosics results from dividing the process into three stages with complementary goals: continuous enzyme adsorption at low-solids loading (5% w/w) with recycling of the liquid phase; continuous liquefaction at high-solids content (up to 20% w/w); and, finally, continuous or semicontinuous hydrolysis with supplementation of fresh enzymes. This paper presents a detailed modeling and simulation framework for the aforementioned operation strategies. The limiting micromixing situations of macrofluid and microfluid are used to predict conversions. The adsorption and liquefaction stages are modeled as a continuous stirred tank and a plug flow reactor, respectively. …
The Effect Of Consumerism And Regulation On Household Solid Waste Management In The United States And Germany: A Comparative Study, Amir Vafa
Amir Vafa
Private household recycling is a significant aspect of consumerism in economically developed countries and the inevitable question of household waste management has gained more importance among municipalities in recent years. The present study examined the effect of regulation on household solid waste management. Within a comparative, qualitative framework, the study explored and evaluated the pro-regulatory effects in Germany and the anti-regulatory policies in the United States by means of comparing two similar communities, Lincoln, Nebraska and Augsburg, Germany. By examining the present legislations, official documents, legal and operational procedures, and other relevant artifacts, laws, regulations and the degree of their …