Techno-economic analysis of a food waste valorization process via microalgae cultivation and co-production of plasticizer, lactic acid and animal feed from algal biomass and food waste

Kwan, Tsz Him; Pleißner, Daniel; Lau, Kin Yan; Venus, Joachim; Pommeret, Aude; Lin, Carol Sze Ki

doi:10.1016/j.biortech.2015.09.003

Cited by 127 publications

(45 citation statements)

References 26 publications

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“…While the associated PBT for AcoD plant (6.7 years) is very close to the typical values found for these installations in literature [41], the PBT for AmoD plant is moderately high (9.2 year) for the assumed plant's lifetime (15 years) and might compromise the final profitability. It must be noted that the findings presented here depend on unpredictable fluctuating variables set out as constant to enable the economic assessment.…”

Section: Tablesupporting

confidence: 58%

Techno-economic anaerobic co-digestion feasibility study for two-phase olive oil mill pomace and pig slurry

2016

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a b s t r a c tAnaerobic mono-(AmoD) and co-digestion (AcoD) of two-phase olive oil mill pomace (TPOP) and pig slurry (PS) at different ratios were studied in a semi-continuous stirred tank reactor (sCSTR) at mesophilic temperature (37 C). The methane yields for AcoD experiments ranged from 150.9 to 274.3 L CH 4 kg VS À1 d À1 . The maximum chemical oxygen demand (COD) removal rate (59.60%) was achieved for TPOP/PS 80:20 w/w substrate composition at OLR 3.68 g VS L reactor À1 d À1 and 24 days HRT. Despite the energy production from food waste is not a new process, the industrial implementation and application continue to be a challenge. Hence, the present paper also reports on the economic feasibility study of a full scale anaerobic co-digestion plant to treat 7000 t year À1 and 1750 t year À1 of TPOP and PS, respectively. The results of this study are compared against a conventional PS mono-digestion plant. Net present values (NPV) and payback time periods (PBT) were reported to be 782,493 V and 135,701 V and 6.7 and 9.2 years for AcoD and AmoD plants, respectively. Finally, the sensibility analysis concluded that AcoD configuration is less dependent on energy and compost sale prices variations.

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Section: Tablesupporting

confidence: 58%

Techno-economic anaerobic co-digestion feasibility study for two-phase olive oil mill pomace and pig slurry

2016

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“…Franchetti [11] evaluated the economic benefit of four different configurations of anaerobic digestion for food waste to energy conversion by using payback period analyses, Eq.1. This was also investigated in the work of the general economic assessment [12]. Net annual cash inflow During academic year 2009-2013, the rate of generated residual food waste in MFU is increased continuously, as seen in Table I.…”

Section: B Economic Analysismentioning

confidence: 99%

Design of a Food Waste Management Method Case Study the Cafeteria in Mae Fah Luang University

Dokinagam¹,

Laosipojana²

2019

IJESD

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The residual food waste is one source of greenhouse gas, which results in climate change and directly increases the risk of water-, food-, vector-and rodent-borne diseases. This research aimed to develop an alternative approach for food waste management at Mae Fah Luang University (MFU). The appropriated way was evaluated based on the quantity of generated food waste together with the chemical and physical properties. The amount of food waste was collected from the canteens at MFU and then sampled to analysis. All information was evaluated to propose the proper food waste management method for MFU. The food waste generation at MFU, during academic year 2009-2013, was around 603.72 kg/day. The greenhouse gas emission from this food waste degradation was approximately 12678.015 KgCO 2 -eq/day and increasing every year. When using COWTEC®, this generated food waste could be converted to electricity around 10.8 MWh/year with 23104.5 kg/year of fertilizer. Moreover, carbon emission is also reduced around 6058.80 KgCO 2 -eq/year. As the economic consideration, the payback period for this investment is around 4 years. Based on economic and environment health considerations, the appropriated way of food waste management at MFU is used as power generation.

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“…Further to laboratory research, the feasibility of applying newly developed synthesis methods in industry using organic waste as raw material needs detailed evaluation, such as techno-economic analysis and environmental impact assessment [62]. …”

Section: Comparison and New Trends Of Poly(lactic Acid) Synthesis mentioning

confidence: 99%

Newly Developed Techniques on Polycondensation, Ring-Opening Polymerization and Polymer Modification: Focus on Poly(Lactic Acid)

et al. 2016

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Polycondensation and ring-opening polymerization are two important polymer synthesis methods. Poly(lactic acid), the most typical biodegradable polymer, has been researched extensively from 1900s. It is of significant importance to have an up-to-date review on the recent improvement in techniques for biodegradable polymers. This review takes poly(lactic acid) as the example to present newly developed polymer synthesis techniques on polycondensation and ring-opening polymerization reported in the recent decade (2005–2015) on the basis of industrial technique modifications and advanced laboratory research. Different polymerization methods, including various solvents, heating programs, reaction apparatus and catalyst systems, are summarized and compared with the current industrial production situation. Newly developed modification techniques for polymer properties improvement are also discussed based on the case of poly(lactic acid).

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Techno-economic analysis of a food waste valorization process via microalgae cultivation and co-production of plasticizer, lactic acid and animal feed from algal biomass and food waste

Cited by 127 publications

References 26 publications

Techno-economic anaerobic co-digestion feasibility study for two-phase olive oil mill pomace and pig slurry

Techno-economic anaerobic co-digestion feasibility study for two-phase olive oil mill pomace and pig slurry

Design of a Food Waste Management Method Case Study the Cafeteria in Mae Fah Luang University

Newly Developed Techniques on Polycondensation, Ring-Opening Polymerization and Polymer Modification: Focus on Poly(Lactic Acid)

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