Anaerobic treatment of fishery wastewater using a marine sediment inoculum

Aspé, Estrella; Martí, M. Cristina; Roeckel, Marlene

doi:10.1016/s0043-1354(97)00051-1

Cited by 95 publications

(31 citation statements)

References 25 publications

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“…Excluding outliers, such as the value of 60 g Na L -1 based on interpolation between 20.8 and 120 g Na L -1 under batch conditions [53], reported tolerances for sodium in non-acclimated mesophilic consortia are generally < 12.0 g Na + L -1 [25], which is considerably below the average concentration found in seawater. The main ions in sea water (Na + , K + , Mg + and Ca ++ ) are required in moderate concentrations for microbial growth and can have both an inhibitory and stimulating effect [25], but at sea water salinity adaption may be required before fullscale anaerobic digestion of marine material is considered [54,55].…”

Section: Discussionmentioning

confidence: 99%

Comparative testing of energy yields from micro-algal biomass cultures processed via anaerobic digestion

2016

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. Comparative testing of energy yields from microalgal biomass cultures processed via anaerobic digestion. Renewable Energy, 87,[744][745][746][747][748][749][750][751][752][753] http://www.sciencedirect.com/science/article/pii/S0960148115304286 doi:10.1016/j.renene.2015.11.009 __________________________________________________________________________________ Comparative testing of energy yields from micro-algal biomass cultures processed via anaerobic digestion Keiron P. Roberts, Sonia Heaven, Charles J. Banks Faculty of Engineering and the Environment, University of Southampton, Southampton, SO17 1BJ, UK (Email K.P. Roberts@soton.ac.uk, S.Heaven@soton.ac.uk, C.J.Banks@soton.ac.uk) Abstract Although digestion of micro-algal biomass was first suggested in the 1950s, there is still only limited information available for assessment of its potential. The research examined six laboratory-grown marine and freshwater micro-algae and two samples from large-scale cultivation systems. Biomass composition was characterised to allow prediction of potentially available energy using the Buswell equation, with calorific values as a benchmark for energy recovery. Biochemical methane potential tests were analysed using a pseudo-parallel first order model to estimate kinetic coefficients and proportions of readily-biodegradable carbon. Chemical composition was used to assess potential interferences from nitrogen and sulphur components. Volatile solids (VS) conversion to methane showed a broad range, from 0.161-0.435 L CH 4 g -1 VS; while conversion of calorific value ranged from 26.4-79.2%. Methane productivity of laboratory-grown species was estimated from growth rate, measured by changes in optical density in batch culture, and biomass yield based on an assumed harvested solids content. Volumetric productivity was 0.04-0.08 L CH 4 L -1 culture day -1 , the highest from the marine species Thalassiosira pseudonana. Estimated methane productivity of the large-scale raceway was lower at 0.01 L CH 4 L -1 day -1 . The approach used offers a means of screening for methane productivity per unit of cultivation under standard conditions.

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Section: Discussionmentioning

confidence: 99%

Comparative testing of energy yields from micro-algal biomass cultures processed via anaerobic digestion

2016

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“…The model substrate used for developing the anaerobic microorganisms corresponds to the modified Balch-3 culture medium 14 presented by Gonzalez et al 15 and satisfies the characteristics indicated by Aspé et al 16 The principal modification performed on the original culture medium consisted in replacing the original tripticase of the Balch-3 medium with meat peptone obtained by peptic digestion (product No. 7224, Merck, Darmstadt, Germany), whose protein content is greater than 800 g kg −1 and whose solubility is 1500 g dm −3 at 20 • C.…”

Section: Inoculum and Culture Mediummentioning

confidence: 99%

Kinetics of syntrophic acetogenesis in a saline medium

Huiliñir

Roa

Vargas

et al. 2008

J of Chemical Tech & Biotech

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BACKGROUND: The anaerobic degradation kinetics of volatile fatty acids (VFA) in a saline (24 g NaCl dm −3 ) and mesophilic (37 • C) medium was studied under batch test conditions. The acetate production kinetics without inhibition by propionic, butyric and valeric acids was determined. The inhibition of acetate production during syntrophic acetogenesis by VFA and pH was studied. The acetogenesis without inhibition was modelled using a Monod equation. The pH inhibition was represented by a Michaelis pH function, while the inhibition by acetic acid (HAc) was represented by a non-competitive model.

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“…The model substrate used to simulate fishery discharge is presented in Table 1; it corresponds to the modified Balch-3 culture medium 14 and satisfies the characteristics indicated by Aspé et al 15 The principal modification performed on the original culture medium consisted of replacing the original tripticase of the Balch-3 medium by meat peptone obtained by peptic digestion (product No 7224, Merck, Germany), whose protein content is greater (14) 10.0 cm 3 Trace vitamins (14) 10.0 cm 3 Mineral 3 (14) 500 cm 3 H 2 O (distilled) 1000 cm 3 than 800 g kg −1 and whose solubility is 1500 g dm…”

Section: Kinetics Experimentsmentioning

confidence: 99%