Repeated batch fermentation for photo-hydrogen and lipid production from wastewater of a sugar manufacturing plant

Assawamongkholsiri, Thitirut; Reungsang, Alissara; Plangkang, Pensri; Sittijunda, ‪Sureewan

doi:10.1016/j.ijhydene.2017.12.119

Cited by 33 publications

(11 citation statements)

References 48 publications

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“…KKU-PS1 was highly efficient in production of hydrogen from a wastewater rich in carbon. SMW not only contained lactate, acetate and butyrate but also some sugars, succinate and propionate, as reported in our previous study (Assawamongkholsiri et al, 2018). Thus, the complex chemical compostions and a high initial substrate concentration of 8 g-COD/L influenced the microbial metabolism, which decreased substrate utilization leading to low hydrogen production and HY.…”

Section: Resultssupporting

confidence: 86%

“…Aji-L was the best nitrogen source in the current study. Aji-L is rich in glutamate (314 g/L) and consists of ammonium, sulfate and chloride (Assawamongkholsiri et al, 2018). Additionally, it contains reducing sugars, metal ions such as calcium, potassium, manganese, magnesium, phosphorus and iron (Zhang et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

“…The particles were removed from raw SMW by filtering through cotton wool and then refiltered using filter paper (Whatman No.1) before use as a substrate. SMW consisted of (all in g/L), 8.00 total chemical oxygen demand (tCOD), 2.60 total sugar, 0.043 total nitrogen, 3.99 total VFAs (0.78 lactic acid, 1.45 acetic acid, 0.74 butyric acid, 0.92 propionic acid, 0.10 succinic acid) (Assawamongkholsiri et al, 2018). The two nitrogen sources were used i.e., sodium glutamate and Aji-L. Aji-L was obtained from Ajinomoto (Thailand) Co., Ltd., Pathum Thani, Thailand.…”

Section: Methodsmentioning

confidence: 99%

“…The unsustainability of fossil fuel consumption and the climate change resulting from fossil fuel combustion have stimulated strategies for developing alternative energy sources that are renewable and eco-friendly (Sagnak & Kargi, 2011). Among the biofuels, bio-hydrogen and biodiesel are considered important alternative energy resources (Assawamongkholsiri, Plangklang & Reungsang, 2016; Assawamongkholsiri et al, 2018; Bagy et al, 2014; Carlozzi et al, 2010). The requirement of hydrogen gas worldwide is 50 million tonnes per year with a growth rate of about 10% per year (Winter, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…001, and Rhodopseudomonas palustris WP3-5 have the capacity to convert hydrogen from a single organic acid (Assawamongkholsiri, Plangklang & Reungsang, 2016; Assawamongkholsiri & Reungsang, 2015; Laocharoen & Reungsang, 2014) and mixed volatile fatty acids (VFAs), which are the major substrates in dark fermentation effluents (Lo et al, 2011; Uyar et al, 2009; Yang et al, 2012). Moreover, a variety of wastewaters such as brewery wastewater (Hay et al, 2017; Seifert, Waligorska & Laniecki, 2010a), dairy wastewater (Seifert, Waligorska & Laniecki, 2010b), sugar industry wastes (Assawamongkholsiri et al, 2018; Keskin & Hallenbeck, 2012) and effluent from dark fermentation processes (Argun, Kargi & Kapdan, 2008; Ozmihci & Kargi, 2010; Sagnak & Kargi, 2011) can be used by PNSB. The limitations of photofermentation are its low hydrogen production rate and high raw material costs (Levin, Pitt & Love, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Photo-hydrogen and lipid production from lactate, acetate, butyrate, and sugar manufacturing wastewater with an alternative nitrogen source byRhodobactersp.KKU-PS1

Assawamongkholsiri¹,

Reungsang

Sittijunda

2019

PeerJ

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Photo-hydrogen and lipid production from individual synthetic volatile fatty acids (VFAs) and sugar manufacturing wastewater (SMW) by Rhodobacter sp. KKU-PS1 with sodium glutamate or Aji-L (i.e., waste from the process of crystallizing monosodium glutamate) as a nitrogen source was investigated. Using individual synthetic VFAs, the maximum hydrogen production was achieved with Aji-L as a nitrogen source rather than sodium glutamate. The maximum hydrogen production was 1,727, 754 and 1,353 mL H2/L, respectively, using 25 mM of lactate, 40 mM of acetate and 15mM of butyrate as substrates. Under these conditions, lipid was produced in the range of 10.6–16.9% (w/w). Subsequently, photo-hydrogen and lipid production from SMW using Aji-L as nitrogen source was conducted. Maximal hydrogen production and hydrogen yields of 1,672 mL H2/L and 1.92 mol H2/mol substrate, respectively, were obtained. Additionally, lipid content and lipid production of 21.3% (w/w) and 475 mg lipid/L were achieved. The analysis of the lipid and fatty acid components revealed that triacyglycerol (TAG) and C18:1 methyl ester were the main lipid and fatty acid components, respectively, found in Rhodobacter sp. KKU-PS1 cells.

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Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Photo-hydrogen and lipid production from lactate, acetate, butyrate, and sugar manufacturing wastewater with an alternative nitrogen source byRhodobactersp.KKU-PS1

Assawamongkholsiri¹,

Reungsang

Sittijunda

2019

PeerJ

Self Cite

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Investigating and modeling the effect of light intensity on Rhodopseudomonas palustris growth

Turco

Pott

2022

Biotech & Bioengineering

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Photosynthetic bacteria can be useful biotechnological tools-they produce a variety of valuable products, including high purity hydrogen, and can simultaneously treat recalcitrant wastewaters. However, while photobioreactors have been designed and modeled for photosynthetic algae and cyanobacteria, there has been less work on understanding the effect of light in photosynthetic bacterial fermentations. To design photobioreactors, and processes using these organisms, robust models of light penetration, utilization, and conversion are needed. This stydy uses experimental data from a tubular photobioreactor designed to focus in on light intensity effects, to model the effect of light intensity on the growth of Rhodopseudomonas palustris, a model photosynthetic bacterium. The work demonstrates that growth is controlled by light intensity, and that this organism does experience photolimitation below 200 W/m 2 and photoinhibition above 600 W/m 2 . This has implications for outdoor applications, as there will be low growth during the periods of limited light, and growth may be inhibited during the light intensive hours of mid-day. Further, the work presents a model for light penetration in cylindrical photobioreactors, which tends to be the most common geometry. The model developed showed good fit to the experimental data for each light intensity investigated, with high R 2 values and NRMSE values all below 20%. The work extends the modeling tools for these organisms, and will allow for better photobioreactor design, and the integration of modeling tools in designing processes which use photosynthetic bacteria.

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Methane Production from the Co-digestion of Algal Biomass with Crude Glycerol by Anaerobic Mixed Cultures

Sittijunda

Reungsang

2018

Waste Biomass Valor

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Repeated batch fermentation for photo-hydrogen and lipid production from wastewater of a sugar manufacturing plant

Cited by 33 publications

References 48 publications

Photo-hydrogen and lipid production from lactate, acetate, butyrate, and sugar manufacturing wastewater with an alternative nitrogen source byRhodobactersp.KKU-PS1

Photo-hydrogen and lipid production from lactate, acetate, butyrate, and sugar manufacturing wastewater with an alternative nitrogen source byRhodobactersp.KKU-PS1

Investigating and modeling the effect of light intensity on Rhodopseudomonas palustris growth

Methane Production from the Co-digestion of Algal Biomass with Crude Glycerol by Anaerobic Mixed Cultures

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