Multifaceted applications of isolated microalgae Chlamydomonas sp. TRC-1 in wastewater remediation, lipid production and bioelectricity generation

Behl, Kannikka; SeshaCharan, Pasupuleti; Joshi, Monika; Sharma, Mahima; Mathur, Ashish; Kareya, Mukul Suresh; Jutur, Pannaga Pavan; Bhatnagar, Amit; Nigam, Subhasha

doi:10.1016/j.biortech.2020.122993

Cited by 64 publications

(26 citation statements)

References 42 publications

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“…In a recent study, it was reported that Chlamydomonas sp. TRC-1 produced for textile wastewater treatment produced biomass which further produced bioelectricity and produced power of 1.83 m −2 (Behl et al, 2020).…”

Section: Microalgae-microbial Fuel Cell (Mmfc)mentioning

confidence: 99%

Valorization of Wastewater Resources Into Biofuel and Value-Added Products Using Microalgal System

et al. 2021

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Wastewater is not a liability, instead considered as a resource for microbial fermentation and value-added products. Most of the wastewater contains various nutrients like nitrates and phosphates apart from the organic constituents that favor microbial growth. Microalgae are unicellular aquatic organisms and are widely used for wastewater treatment. Various cultivation methods such as open, closed, and integrated have been reported for microalgal cultivation to treat wastewater and resource recovery simultaneously. Microalgal growth is affected by various factors such as sunlight, temperature, pH, and nutrients that affect the growth rate of microalgae. Microalgae can consume urea, phosphates, and metals such as magnesium, zinc, lead, cadmium, arsenic, etc. for their growth and reduces the biochemical oxygen demand (BOD). The microalgal biomass produced during the wastewater treatment can be further used to produce carbon-neutral products such as biofuel, feed, bio-fertilizer, bioplastic, and exopolysaccharides. Integration of wastewater treatment with microalgal bio-refinery not only solves the wastewater treatment problem but also generates revenue and supports a sustainable and circular bio-economy. The present review will highlight the current and advanced methods used to integrate microalgae for the complete reclamation of nutrients from industrial wastewater sources and their utilization for value-added compound production. Furthermore, pertaining challenges are briefly discussed along with the techno-economic analysis of current pilot-scale projects worldwide.

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Section: Microalgae-microbial Fuel Cell (Mmfc)mentioning

confidence: 99%

Valorization of Wastewater Resources Into Biofuel and Value-Added Products Using Microalgal System

et al. 2021

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“…Numerous researchers have been successful in treating effluent via the use of microalgal strains isolated from TDW itself, since the species thus isolated would be acclimated to growth in the presence of dyes. 7,12 Genetic and metabolic engineering techniques could also be employed for improvement of microalgal strains for enhanced biodegradation of dyes. 42 Microalgae of the genus Chlorella have demonstrated the ability to tolerate and effectively remediate TDW due to their robustness and ability to proliferate under harsh environmental conditions.…”

Section: Microalgae Species Employed In Bioremediation Of Textile Dye Wastewatermentioning

confidence: 99%

“…In addition, the microalgal biomass generated through the process was constituted of carbohydrates (19.5%) and lipids (11%), indicating its potential as feedstock for biofuel production. 12 Moreover, the electrogenic properties of the microalga demonstrated its feasibility for use in bioelectrode fabrication. Furthermore, the ability of microalgae to function as a biocathode of a microbial fuel cell during the simultaneous generation of bioelectricity and the degradation of textile dye has been reported.…”

Section: Strategies For Microalgal Bioremediation Of Textile Dye Wastewatermentioning

confidence: 99%

“…Therefore, supplementation of external organic carbon sources is not required in microalgal treatment, making it a more cost effective and environmentally sustainable option for bioremediation as compared to use of heterotrophic organisms. 12 Microalgae can effectively proliferate in TDW while simultaneously performing decolorization via adsorption and/or metabolizing dye as a source of carbon. 5 Furthermore, microalgae are also effective in the concurrent removal of COD, nitrogen, phosphorous and heavy metals.…”

Section: Introductionmentioning

confidence: 99%

“…6 In contrast to conventional treatment methods, microalgal bioremediation generates lower quantities of sludge, and the biomass generated as a result of the effluent treatment process could be processed into biofuel and bioenergy. 12,13 Nonetheless, while most studies in the literature have focused on the phycoremediation of TDW, few studies have performed in-depth analyses on the feasibility of utilizing microalgal biomass for value-added applications, thereby representing a research gap that should be addressed.…”

Section: Introductionmentioning

confidence: 99%

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Bioremediation of textile dye wastewater using microalgae: current trends and future perspectives

Premaratne

Nishshanka

Liyanaarachchi

et al. 2021

J of Chemical Tech & Biotech

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Wastewater generated from the textile industry contains numerous pollutants, most notably dyes, which can cause adverse effects, including negative impact on aesthetics, eutrophication, decrease of photosynthetic activity and bioaccumulation of toxins in aquatic ecosystems, if discharged without adequate treatment. The cultivation of microalgae in the textile dye effluent has been identified as a promising alternative to conventional methods of wastewater treatment. During microalgae cultivation, dyes present in effluent are remediated through bioconversion/biodegradation or biosorption. Thus, treatment using microalgae reduces the color and nutrient load of textile effluent, which mitigates numerous negative environmental impacts caused by its discharge into the natural environment. Furthermore, compared to conventional treatment processes, use of microalgae for bioremediation of textile effluent provides the added advantage of generating valuable biomass that can be processed into bioproducts, biofuels and bioenergy. Wastewater-integrated cultivation would enhance the sustainability of microalgal biomass production by reducing the freshwater footprint and recovery of waste nutrients from effluent, thereby promoting the concept of a biobased economy. In this mini-review, the current status and future perspectives of using microalgae for bioremediation of textile dye wastewater were analyzed, with focus on various strategies reported in the literature. A critical review of the literature showed that most studies focused on wastewater treatment, while exploring applications for concomitantly generated biomass was a secondary consideration. Hence, the requirement of a paradigm shift in current research for valorization of microalgal biomass was highlighted. Moreover, it was concluded that comprehensive feasibility studies are necessary prior to industrial-scale bioremediation of textile dye effluent.

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Nitrogen‐Doped Graphene Nanosheets for Sustainable Removal of Pharmaceutical Contaminants from Water: Kinetics and ANFIS Modeling

et al. 2023

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In this work, nitrogen‐doped graphene nanosheets (NGS) were synthesized to remove diclofenac sodium (DFS) from water. The NGS exhibited 99.8 % removal efficiency, adsorption capacity of 278 mg g−1 for DFS within 30 min, and excellent reusability up to 5 cycles of adsorption. The experimental data fit well with pseudo‐second order kinetic model and Langmuir isotherm model. X‐ray photoelectron spectroscopy (XPS) and FTIR studies revealed that the carboxylic group, triazine group, graphitic‐N, and pyridinic‐N groups were involved in the adsorption of DFS. The adaptive neuro‐fuzzy inference system (ANFIS) was modeled for accurate prediction of optimizing parameters for the maximum adsorptive removal (%) of DFS by NGS. A subsequent cytotoxicity assay of NGS on a green alga Chlamydomonas sp. signified non‐toxic nature. This study suggests NGS to be a promising economic adsorbent for water remediation in resource‐poor environments to fulfill “UN‐Sustainable Development Goal‐ 6”.

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Multifaceted applications of isolated microalgae Chlamydomonas sp. TRC-1 in wastewater remediation, lipid production and bioelectricity generation

Cited by 64 publications

References 42 publications

Valorization of Wastewater Resources Into Biofuel and Value-Added Products Using Microalgal System

Valorization of Wastewater Resources Into Biofuel and Value-Added Products Using Microalgal System

Bioremediation of textile dye wastewater using microalgae: current trends and future perspectives

Nitrogen‐Doped Graphene Nanosheets for Sustainable Removal of Pharmaceutical Contaminants from Water: Kinetics and ANFIS Modeling

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