Cultivation of Chlorella on brewery wastewater and nano-particle biosynthesis by its biomass

Subramaniyam, Vidhyasri; Subashchandrabose, Suresh R.; Ganeshkumar, Vimalkumar; Thavamani, Palanisami; Chen, Zuliang; Naidu, Ravi; Megharaj, Mallavarapu

doi:10.1016/j.biortech.2016.03.154

Cited by 73 publications

(16 citation statements)

References 27 publications

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“…The TP concentrations were also found to be to 17.13 ± 0.65, 14.54 ± 0.73, 15.03 ± 0.70 and 14.47 ± 0.69 mg L −1 with removal efficiencies of 65.28%, 72.81%, 69.88%, and 69.32% in December, March, June, and October at the end of experiments, respectively. The phosphorus nutrient concentrations obtained at the end of cultivation were found to be above the permissible discharge limit for brewery effluent standard recommended by EEPA (2003).The phosphorus removal efficiencies obtained in this study were lower than those attained by Farooq et al (2013), Darpito et al (2014), and Subramaniyam et al (2016), who reported a maximum removal of 80%, 90%, and 100% from brewery effluent using Chlorella vulgaris, Chlorella prototheocides and Chlorella sp., respectively, but higher than those obtained by Ferreira et al (2017), Choi (2016), and Marchão et al (2018), who reported 40%, 43%, and 54.67% TP removals from brewery effluent, respectively. The TP removal efficiencies in this study were comparable with those obtained by Raposo et al (2010), who attained a maximum of 66% TP from brewery effluent using Chlorella vulgaris.…”

Section: Phosphorus Removalcontrasting

confidence: 50%

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Nutrient removal and carbohydrate production potential of indigenous Scenedesmus sp. grown in anaerobically digested brewery wastewater

et al. 2020

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Background The combination of nutrient removal using microalgae from wastewater with carbohydrate production has been considered as a promising approach for sustainable wastewater treatment and production of valuable products such as biofuels. In Ethiopia, urbanization and industrial development are not in tandem with wastewater treatment system The objective of this study was to evaluate nutrient removal and carbohydrate production potential of the indigenous microalgae Scenedesmus sp. grown in anaerobically digested brewery wastewater. The indigenous Scenedesmus sp. was grown in an anaerobically digested brewery effluent in different seasons of the year. The biomass was converted into carbohydrate using microwave, autoclave, and oven as pretreatment, followed by optimization for acid concentrations and hydrolysis time. Result The overall removal efficiencies for the indigenous Scenedesmus sp. based wastewater treatment system were over 99%, 92%, 63%, 65% and 75% for NH4+-N, TN, PO43− -P, TP and COD, respectively. The concentrations of final effluent quality of these parameters except for phosphorus nutrient were below the permissible discharge limit for brewery effluent standard set by Ethiopian Environmental Protection Authority. With regard to carbohydrate production, microwave-assisted acid hydrolysis with HCl produced a higher total sugar than that of autoclave and oven pretreatments. Among acid concentrations, HCl with 3 N produced a higher total sugar, which is significantly different (P < 0.05) to the other acid concentrations. The highest total sugar (233.89 mg g−1) was obtained from microalgal biomass during the 20 min hydrolysis time with 3 N HCl and 5% (w/v) biomass at 1000 watts and 1200C. Conclusions This study showed that there is an opportunity for using the indigenous microalgae for sustainable wastewater treatment and for carbohydrate production that uses as bioethanol source in Ethiopia.

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Section: Phosphorus Removalcontrasting

confidence: 50%

“…Phosphorus is another essential macronutrient that has an influence on algae growth and is about 0.5-3.3% in algal biomass (Subramaniyam et al 2016). It is assimilated by microalgae as inorganic orthophosphate through an active process that requires energy (Rasoul-amini et al 2014;Chaudhary et al 2017).…”

Section: Phosphorus Removalmentioning

confidence: 99%

Nutrient removal and carbohydrate production potential of indigenous Scenedesmus sp. grown in anaerobically digested brewery wastewater

et al. 2020

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“…During the entire process of microalgae repair and CO 2 fixation, the microalgae absorbed C, N, P and trace elements in the wastewater, promoted the metabolism and cell growth of the wastewater, and thus treated the wastewater. At the same time, through exposure to sunlight, microalgae are able to convert CO 2 from point sources into useful biomass such as carbohydrates, proteins and fatty acids 80, 91 …”

Section: Microalgae‐co2‐biomass Cycle Systemmentioning

confidence: 99%

Advances in the biological fixation of carbon dioxide by microalgae

Zhang

Liu

2021

J of Chemical Tech & Biotech

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Global warming caused by carbon dioxide (CO2) emissions is one of the most important topics of concern in the fields of science, environment and global economy. Carbon dioxide emissions have increased dramatically in recent years, and this trend is likely to continue with a projected increase of both global energy consumption and CO2 emissions by 51% in 2050 compared with 2005. To mitigate the negative impacts arising, a potential strategy to convert CO2 into renewable fuels or valuable chemicals can be applied. Bio‐CO2 emission reduction is receiving more and more attention as an environmentally friendly method. Microalgae are attracting worldwide attention in this regard owing to their exceptional speed of growth, resistance to harsh environments and low production costs. In this review, the biochemical principles of microalgae‐CO2 fixation and the research progress of microalgae strains used for CO2 fixation are reviewed and discussed. The latest progress in the co‐development of a microalgae carbon sequestration industry and other industries are provided, along with a survey of the progress in methods to improve microalgae‐CO2 fixation. Finally, the problems to be solved in the industry and its future directions of development are clarified. © 2021 Society of Chemical Industry (SCI).

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“…Similarly, Ferreira et al [54] concluded in their report that Scenedesmus obliquus removed almost all the pollutants present in the various wastewater (poultry, swine and cattle breeding, brewery and dairy industries, and urban). Subramaniyam et al [55] cultivated Chlorella sp. in brewery wastewater and concluded that Chlorella sp.…”

Section: Current Wastewater Treatment Approachesmentioning

confidence: 99%

Microalgae Brewery Wastewater Treatment: Potentials, Benefits and the Challenges

Amenorfenyo

Huang

Zhang

et al. 2019

IJERPH

149

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Concerns about environmental safety have led to strict regulations on the discharge of final brewery effluents into water bodies. Brewery wastewater contains huge amounts of organic compounds that can cause environmental pollution. The microalgae wastewater treatment method is an emerging environmentally friendly biotechnological process. Microalgae grow well in nutrient-rich wastewater by absorbing organic nutrients and converting them into useful biomass. The harvested biomass can be used as animal feed, biofertilizer, and an alternative energy source for biodiesel production. This review discusses conventional and current brewery wastewater treatment methods, and the application and potential of microalgae in brewery wastewater treatment. The study also discusses the benefits as well as challenges associated with microalgae brewery and other industrial wastewater treatments.

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Cultivation of Chlorella on brewery wastewater and nano-particle biosynthesis by its biomass

Cited by 73 publications

References 27 publications

Nutrient removal and carbohydrate production potential of indigenous Scenedesmus sp. grown in anaerobically digested brewery wastewater

Nutrient removal and carbohydrate production potential of indigenous Scenedesmus sp. grown in anaerobically digested brewery wastewater

Advances in the biological fixation of carbon dioxide by microalgae

Microalgae Brewery Wastewater Treatment: Potentials, Benefits and the Challenges

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