Showing papers on "Bioreactor published in 1978"
01 Jan 1978
TL;DR: The results indicate that the scale-up of the bioreactor from 5 cm i.d. to 10 cm i-d.
Abstract: The purpose for the preceeding development program was to design a mobile denitrification pilot plant that could be used in a number of DOE and commercial nuclear fuel cycle operations to test the applicability of this biological denitrification process to their individual nitrate wastewaters. The results indicate that the scale-up of the bioreactor from 5 cm i.d. to 10 cm i.d. is directly proportional. The tests with the single and dual 10-cm-i.d. by 6-m tall bioreactors corresponded satisfactorily with the 5-cm-i.d. bioreactor empirical curve of nitrate concentration vs. bioreactor length. Therefore, we have a basis for predicting the performance of our mobile pilot plant. The mobile pilot plant will contain two 20-cm-i.d. by 7-m long bioreactors operated in series. For near-zero NO/sub 3//sup -/ effluent (5 to 10 g/m/sub 3/), the feed will have a maximum concentration of 4000 g/m/sup 3/ and will be introduced at a flow rate of 16 liter/min. The temperature will be regulated between 22 and 30/sup 0/C. 13 figures, 3 tables.
15 citations
30 May 1978
TL;DR: Topics presented include: solid waste to methane gas; pipeline fuel gas from an environmental cattle feed lot; heat treatment of organics for increasing anaerobic biodegradability; promoting faster anaerobe digestion; permselective membrane control of algae and wood digesters for increased production and chemicals recovery.
Abstract: Progress was reported by all contractors. Topics presented include: solid waste to methane gas; pipeline fuel gas from an environmental cattle feed lot; heat treatment of organics for increasing anaerobic biodegradability; promoting faster anaerobic digestion; permselective membrane control of algae and wood digesters for increased production and chemicals recovery; anaerobic fermentation of agricultural residues; pilot plant demonstration of an anaerobic, fixed-film bioreactor for wastewater treatment; enhancement of methane production in the anaerobic diegestion of sewage; evaluation of agitation concepts for biogasification of sewage sludge; operation of a 50,000 gallon anaerobic digester; biological conversion of biomass to methane; dirt feedlot residue experiments; anaerobic fermentation of livestock and crop residues; current research on methanogenesis in Europe; and summary of EPA programs in digestion technology. (DC)
1 citations