A concise review on the cultivation of microalgal biofilms for biofuel feedstock production

Patwardhan, Sanchita Bipin; Pandit, Soumya; Ghosh, Dipankar; Dhar, Dolly Wattal; Banerjee, Srijoni; Joshi, Sanket; Gupta, Piyush Kumar; Lahiri, Dibyajit; Nag, Moupriya; Ruokolainen, Janne; Ray, Rina Rani; Kesari, Kavindra Kumar

doi:10.1007/s13399-022-02783-9

Cited by 16 publications

(3 citation statements)

References 87 publications

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“…The Ceiba pentandra (kapok) plant yields a strong and lightweight fiber used to stuff dolls, pillows, mattresses, and tapestries . The most prominent textile fiber is lint, produced from cotton, the king of natural fiber, collected from the torn Ceiba pentandra fruits . Lint is the most comfortable and environmentally friendly textile fiber.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Testing of Crop Waste Ceiba pentandra Shell Powder Reinforced Biodegradable Composite Films

Medadurai,

Pandiarajan,

Balasubramanian

et al. 2023

ACS Omega

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Ceiba pentandra shell powder (CPSP) biowaste is chosen as a biofiller combined with poly(vinyl alcohol) (PVA) as a matrix to make biofilms to increase the exploitation of biowaste materials and reduce the use of plastic materials. FTIR plots indicated no significant chemical reaction or formation of new functional groups during interaction between PVA and CPSP. XRD diffractograms showed that the crystallinity index (35.

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Section: Introductionmentioning

confidence: 99%

Fabrication and Testing of Crop Waste Ceiba pentandra Shell Powder Reinforced Biodegradable Composite Films

Medadurai,

Pandiarajan,

Balasubramanian

et al. 2023

ACS Omega

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“…The Ceiba Pentandra (Kapok) plant yields a strong and lightweight ber used to stuff dolls, pillows, mattresses, and tapestries [14]. The most prominent textile ber is lint, produced from cotton, the king of natural ber, collected from the torn Ceiba Pentandra fruits [15]. Lint is the most comfortable and environmentally friendly textile ber.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and testing of crop waste Ceiba Pentandra Shell Powder reinforced biodegradable composite films

Kaliraj¹,

Narayanasamy²,

Balavairavan³

et al. 2023

Preprint

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Ceiba Pentandra Shell Powder (CPSP) bio waste is chosen as a bio filler combined with Polyvinyl Alcohol (PVA) as a matrix to make biofilms to increase the exploitation of bio waste materials and reduce the use of plastic materials. The fabricated biofilms endured the structural, thermal, microstructural, mechanical, UV barrier, opacity, water absorption, and soil burial properties. FTIR plots indicated no significant chemical reaction or formation of new functional groups during an interaction between PVA and CPSP. XRD diffractograms represented the crystallinity index (35.3, 38.6, 42.3, 46.4 and 48.5%) and crystalline size (18.14, 20.89, 23.23, 24.87and 26.34 nm) of biofilms increased with CPSP loading (5–25 wt. %). The PVA/CPSP films are thermally stable up to 322 ℃. The peak highs of AFM images showed that the films surface roughness gradually increased from 94.75 nm (5 wt. % CPSP) to 320.17 nm (25 wt. % CPSP). The FESEM micrographs clarify the homogenous distribution of CPSP materials in the PVA matrix. Tensile strength and tensile modulus are noticeably increased by 26.32% and 37.92%, respectively, due to the loading of CPSP from 5 wt. % to 20 wt. % in the PVA matrix. The PVA/CPSP films outperform than pure PVA films in UV shielding (350–450 nm). The 59% of weight loss of films was estimated during 60 days of burial time. Overall, PVA/ CPSP (5–25 wt. %) films are biodegradable and have promising applications as good packaging material.

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“…However, most applications of microalgae for energy production remain underdeveloped mainly because of cost-intensive cultivation and harvest processes at an industrial scale [11]. Moreover, the investigation of the cultivation of microalgal biofilms for biofuel feedstock production has been limited to traditional open ponds and closed photobioreactors [12]. Algal biofilms are gaining attention from an economical perspective because of their high biomass density and relatively easier harvest.…”

Section: Introductionmentioning

confidence: 99%

Anaerobic digestion of algal–bacterial biomass of an Algal Turf Scrubber system

Cheenakula

Hoffstadt

Krafft

et al. 2022

Biomass Conv. Bioref.

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This study investigated the anaerobic digestion of an algal–bacterial biofilm grown in artificial wastewater in an Algal Turf Scrubber (ATS). The ATS system was located in a greenhouse (50°54′19ʺN, 6°24′55ʺE, Germany) and was exposed to seasonal conditions during the experiment period. The methane (CH4) potential of untreated algal–bacterial biofilm (UAB) and thermally pretreated biofilm (PAB) using different microbial inocula was determined by anaerobic batch fermentation. Methane productivity of UAB differed significantly between microbial inocula of digested wastepaper, a mixture of manure and maize silage, anaerobic sewage sludge, and percolated green waste. UAB using sewage sludge as inoculum showed the highest methane productivity. The share of methane in biogas was dependent on inoculum. Using PAB, a strong positive impact on methane productivity was identified for the digested wastepaper (116.4%) and a mixture of manure and maize silage (107.4%) inocula. By contrast, the methane yield was significantly reduced for the digested anaerobic sewage sludge (50.6%) and percolated green waste (43.5%) inocula. To further evaluate the potential of algal–bacterial biofilm for biogas production in wastewater treatment and biogas plants in a circular bioeconomy, scale-up calculations were conducted. It was found that a 0.116 km2 ATS would be required in an average municipal wastewater treatment plant which can be viewed as problematic in terms of space consumption. However, a substantial amount of energy surplus (4.7–12.5 MWh a−1) can be gained through the addition of algal–bacterial biomass to the anaerobic digester of a municipal wastewater treatment plant. Wastewater treatment and subsequent energy production through algae show dominancy over conventional technologies. Graphical abstract

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A concise review on the cultivation of microalgal biofilms for biofuel feedstock production

Cited by 16 publications

References 87 publications

Fabrication and Testing of Crop Waste Ceiba pentandra Shell Powder Reinforced Biodegradable Composite Films

Fabrication and Testing of Crop Waste Ceiba pentandra Shell Powder Reinforced Biodegradable Composite Films

Fabrication and testing of crop waste Ceiba Pentandra Shell Powder reinforced biodegradable composite films

Anaerobic digestion of algal–bacterial biomass of an Algal Turf Scrubber system

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