Production of bioenergy and biochemicals from industrial and agricultural wastewater

Angenent, Largus T.; Karim, Khursheed; Al‐Dahhan, Muthanna H.; Wrenn, Brian A.; Domíguez-Espinosa, Rosa

doi:10.1016/j.tibtech.2004.07.001

Cited by 887 publications

(493 citation statements)

References 70 publications

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“…There are also human health concerns due to land related pathogenicity contained in the raw materials [44]. Industrial wastewaters from food processing industries, wineries, breweries and agricultural wastewater from animal confinements are ideal candidates for biotechnological production of high value substances and platform chemicals [45,46] however their effective formulation remains a desideratum. These effluents, if used as nutrient media, are potentially highly profitable, especially when compared to the traditional synthetic media or that derived from food sources such as crops.…”

Section: Waste: a Sustainable Point Of Supply Of Resources And Energymentioning

confidence: 99%

Grape Winery Waste as Feedstock for Bioconversions: Applying the Biorefinery Concept

Zacharof

2016

Waste Biomass Valor

139

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Grape wine is among the most important alcoholic beverages in the globe, with a continuously rising world demand, currently sizing at 25 billion litres. Such a large and heavily industrialised market calls for the maintenance of a steady production of raw materials to end products. Consequently, intensive cultivation of land, harvesting of the goods and manufacturing for the production of commercially available products are being implemented. Wine making is a timed, multistage process producing a large amount of organic and inorganic waste. It has been calculated that during cultivation and harvesting about 5 tonnes of solid waste are generated per hectare per year, while the winery wastewater varies according to the production size from 650,000 m 3 (Greece) to over 18,000,000 m 3 (Spain) per year. Conventional treatments of winery waste are becoming increasingly expensive, demanding significant amounts of effort, resources and energy for safe waste discharge. Therefore, the need to recycle, reuse and recover energy and valuable chemicals from winery waste and wastewater becomes apparent. Valorisation of winery waste is possible when introducing the concept of biorefinery, i.e. the use of winery waste as bioconversions feedstock in order to produce platform chemicals, biofuels, heat and energy.

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Section: Waste: a Sustainable Point Of Supply Of Resources And Energymentioning

confidence: 99%

Grape Winery Waste as Feedstock for Bioconversions: Applying the Biorefinery Concept

Zacharof

2016

Waste Biomass Valor

139

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“…Methane is considered as an important renewable energy source which can be generated by anaerobic digestion of wastewater and biomass (Angenent et al, 2004;De Mes et al, 2003;Prochnow et al, 2009). MNWs have been believed to play a role in methane production in syntrophic microbial communities (Morita et al, 2011;Rotaru et al, 2014;Summers et al, 2010;Wegener et al, 2015), which can be exploited further for improved methane production in anaerobic digesters.…”

Section: Bioenergymentioning

confidence: 99%

Microbial nanowires: an electrifying tale

et al. 2016

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Electromicrobiology has gained momentum in the last 10 years with advances in microbial fuel cells and the discovery of microbial nanowires (MNWs). The list of MNW-producing micro-organisms is growing and providing intriguing insights into the presence of such micro-organisms in diverse environments and the potential roles MNWs can perform. This review discusses the MNWs produced by different micro-organisms, including their structure, composition and mechanism of electron transfer through MNWs. Two hypotheses, metalliclike conductivity and an electron hopping model, have been proposed for electron transfer and we present a current understanding of both these hypotheses. MNWs not only are poised to change the way we see micro-organisms but also may impact the fields of bioenergy, biogeochemistry and bioremediation; hence, their potential applications in these fields are highlighted here.

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“…Bioelectrochemical systems (BES) such as microbial fuel cells (MFCs) have been proposed to treat wastewater treatment at the same time as they produce energy (Angenent et al, 2004). Energy is generated when electrons are transferred via an electric circuit.…”

Section: Bioelectrochemical Systemsmentioning

confidence: 99%

“…Reducing the cost of each step can contribute to the development of the bioproduct (van Wyk, 2001). Examples of (organic) acid producing microbial processes are acetic acid and lactic acid for production of deicing salt and bioplastic, respectively (Angenent et al, 2004), where CaCO 3 can potentially be substituted for the current neutralizing agent used such as sodium carbonate (Na 2 CO 3 ) (Wang et al, 2002). Some of the difficulties of buffering the pH by CaCO 3 might be due to the lack of understanding the 77 system instead of the CaCO 3 buffering capacity itself.…”

Section: Introductionmentioning

confidence: 99%