A circular economy approach for phosphorus removal using algae biochar

Antunes, Elsa; Vuppaladadiyam, Arun K.; Kumar, Ravinder; Vuppaladadiyam, Varsha S.S.; Sarmah, Ajit K.; Islam, Md Anwarul; Dada, Tewodros Kassa

doi:10.1016/j.clcb.2022.100005

Cited by 18 publications

(18 citation statements)

References 61 publications

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“…Higher temperature leads to a greater decomposition of the organic part of algae, which this is consistent with other studies—for freshwater macroalga Cladophora glomerata , the pyrolysis yield was 63% for 300 °C, 56% for 350 °C, 50% for 400 °C, and 47% for 450 °C (Michalak et al 2019 ). Also, Antunes et al ( 2022 ) noted a relationship between an increase in pyrolysis temperature and a decrease in the process efficiency. In the cited work, the yield of biochar produced from macroalgae Ulva ohnoi at 300 °C was 60.4% and at 800 °C was 29.4%.…”

Section: Resultsmentioning

confidence: 99%

“…Intense or unmanaged fertilization increases the amount of phosphorus in soils, which when combined with rainfall, causes phosphorus to end up in water bodies (lakes, ponds, rivers, seas, etc.) or sewage (Antunes et al 2022 ; Eduah et al 2020 ). Eutrophication of water reservoirs increases algae bloom (Arumugam et al 2018 ; Jiang et al 2019 ).…”

Section: Introductionmentioning

confidence: 99%

“…Current research focuses on Ulva intestinalis , a green macroalga that has found several applications, for example, in agriculture (use of algae extracts as liquid fertilizers (Chatzissavvidis and Therios 2014 ), as for animal feed (Oucif et al 2020 ), as food for humans (Ganesan et al 2014 ), in wastewater treatment (Michalak and Chojnacka 2010 ) and recently for biochar production (Antunes et al 2022 ). The solution mentioned last seems to be of particular interest.…”

Section: Introductionmentioning

confidence: 99%

“…The conditions of this thermal process (temperature, time, use of catalysts, etc.) and the type of raw material (from which the biochar will be produced) are very important, because they determine process durability, aromaticity, element content, and the possibility of binding bioproducts with other compounds (Antunes et al 2022 ; Leng and Huang 2018 ; Michalak et al 2019 ; Vijayaraghavan and Balasubramanian 2021 ). Due to their porous structure and their many functional groups, biochars are of great interest as agents removing pollutants from aqueous solutions (for wastewater treatment) and could play an important role in mitigating non-point pollutants (Pinto et al 2019 ).…”

Section: Introductionmentioning

confidence: 99%

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Potential use of Ulva intestinalis-derived biochar adsorbing phosphate ions in the cultivation of winter wheat Tristicum aestivum

Niedzbała,

Lorenc-Grabowska,

Rutkowski

et al. 2024

Bioresour. Bioprocess.

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In this work, the properties of biochar produced from green macroalga Ulva intestinalis by pyrolysis were studied at temperatures of 300, 500, and 700 °C. This biochar was characterized in terms of multielemental composition, BET surface area, total pore volume, and biosorption properties toward phosphate ions. Biochar produced at 700 °C–25 m2/g had the highest surface area. The kinetics and isotherms of sorption processes of phosphate ions as sorbate by these sorbents were investigated. Modified biochar was able to remove 84.3% of phosphate ions from wastewater, whereas non-modified biochar—only 40.6%. Hence, biochar enriched with phosphate ions can serve as a valuable soil amendment. Pot experiments performed on winter wheat (Triticum aestivum) with a 3% addition of dry Ulva intestinalis, pristine biochar, and Mg-modified biochar enriched with phosphate ions showed that these amendments stimulated plant growth (length and fresh weight of plants) as well as enlarging the chlorophyll content in leaves. Our results indicate that the production of biochar (pristine and Mg-impregnated) is a sustainable option to valorize the biomass of seaweeds, and to recycle phosphorus from wastewater. Graphical Abstract

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Potential use of Ulva intestinalis-derived biochar adsorbing phosphate ions in the cultivation of winter wheat Tristicum aestivum

Niedzbała,

Lorenc-Grabowska,

Rutkowski

et al. 2024

Bioresour. Bioprocess.

View full text Add to dashboard Cite

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“…An alternative approach to heavy metal water remediation is biosorption, a traditional water treatment technique that uses natural polymers as biomaterials. Biosorption has several advantages, including its low cost, biodegradability, sustainability, and renewability [11][12][13]. Moreover, biosorption aligns with the goals of the circular economy [14] which aims to minimize waste production by maximizing the reuse and recycling of materials.…”

Section: Introductionmentioning

confidence: 99%

Untreated Opuntia ficus indica for the Efficient Adsorption of Ni(II), Pb(II), Cu(II) and Cd(II) Ions from Water

et al. 2023

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The raw cladode of Opuntia ficus indica (OFI) was evaluated as a sustainable biosorbent for the removal of heavy metals (Ni, Pb, Cu, and Cd) from aqueous solutions. The functional groups of OFI were identified by employing DRIFT-FTIR and CP-MAS-NMR techniques before and after contact with the ions in an aqueous media, showing a rearrangement of the biomass structure due to the complexation between the metal and the functional groups. The adsorption process was studied in both single- and multi-component systems under batch conditions at different pHs (4.0, 5.0, and 6.0), different metal concentrations, and different biomass amounts. The results show that the raw OFI had a removal capacity at room temperature of over 80% for all metals studied after only 30 min of contact time, indicating a rapid adsorption process. Biosorption kinetics were successfully fitted by the pseudo-second-order equation, while Freundlich correctly modelled the biosorption data at equilibrium. The results of this work highlight the potential use of the untreated cladode of OFI as an economical and environmentally friendly biosorbent for the removal of heavy metals from the contaminated aqueous solution.

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In Situ Ca‐ and Mg‐ Codoped Biochar Derived from Tobacco Stem for Phosphate Adsorption and Desorption

Tu,

Cen,

Deng

et al. 2024

ChemistrySelect

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Phosphorus is an important element for plant growth. The efficient use and recovery of phosphorus is crucial due to limited phosphate resource reserves. This study explored the potential application of an in situ Ca and Mg co‐doped biochar derived from tobacco stem to reclaim and reuse phosphate from aqueous solutions. We performed various batch adsorption experiments and industrial analysis based on different parameters. The findings indicate that biochar prepared using the raw material particle size range of 0.85–2 mm and pyrolyzed at 800 °C presented good pore structure and specific surface area. Ca and Mg elements in biochar exhibited great influence on its phosphate adsorption property. The maximum phosphate adsorption capacity of the tobacco stem‐based biochar was 54.66 mg/g, and the experimental data agreed with the Langmuir equation, suggesting monolayer adsorption. The adsorption process conformed to the pseudo‐second‐order kinetic equation, indicating that chemisorption was the dominant adsorption process and that the adsorption was controlled by intra‐particle diffusion. Furthermore, phosphate adsorbed on tobacco stem‐based in situ Ca and Mg co‐doped biochar was released under acidic, alkaline, and neutral conditions. Therefore, in situ Ca and Mg co‐doped biochar prepared from tobacco stems is a potential environmentally friendly and low‐cost adsorbent for phosphorus recovery.

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A circular economy approach for phosphorus removal using algae biochar

Cited by 18 publications

References 61 publications

Potential use of Ulva intestinalis-derived biochar adsorbing phosphate ions in the cultivation of winter wheat Tristicum aestivum

Potential use of Ulva intestinalis-derived biochar adsorbing phosphate ions in the cultivation of winter wheat Tristicum aestivum

Untreated Opuntia ficus indica for the Efficient Adsorption of Ni(II), Pb(II), Cu(II) and Cd(II) Ions from Water

In Situ Ca‐ and Mg‐ Codoped Biochar Derived from Tobacco Stem for Phosphate Adsorption and Desorption

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