CO2 fixation capability of Chlorella sp. and its use in treating agricultural wastewater

Hariz, Harizah Bajunaid; Takriff, Mohd Sobri; Ba‐Abbad, Muneer M.; Yasin, Nazlina Haiza Mohd; Hakim, Noor Irma Nazashida Mohd

doi:10.1007/s10811-018-1488-0

Cited by 36 publications

(9 citation statements)

References 58 publications

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“…This result was higher than that obtained by Jacob-Lopes et al (2009), who achieved 0.562 g/L/day when they cultured Aphanothece microscopica Nägeli in a photobioreactor using a synthetic medium with a 12 h photoperiod. In another study by Hariz et al (2018), 0.1208 g CO2/L/day fixation rate was obtained under RSM optimum conditions using Chlorella sp. cultivated in a palm oil mill effluent.…”

Section: Co2 Fixation By the Microalgaementioning

confidence: 93%

Sustainable Cultivation of Desmodesmus armatus SAG276.4d using Leachate as a Growth Supplement for Simultaneous Biomass Production and CO2 Fixation

Fuad

Khalid

Kamarudin

2021

Int. J. Renew. Energy Dev.

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Microalgae cultivation has been identified to be highly beneficial for the production of valuable biomass. The recent worldwide interest is to cultivate microalgae in wastewater to replace the use of expensive commercial media. Microalgae can utilize nutrients from the wastewater for their biomass growth, which is useful as feedstock in many products. Interestingly, microalgae cultivation is also capable of reducing a greenhouse gas due to absorption of carbon dioxide (CO2) during photosynthesis. This study was conducted to study the growth of microalgae using leachate as a nutrient supplement. The scope of the research involved the cultivation of freshwater microalgae, Desmodesmus armatus, in the synthetics medium with various percentages of leachate under different light exposures. The growth parameters such as the specific growth rate, biomass productivity, and cell division time were used to evaluate the microalgae growth performance. The amount of CO2 absorbed during the cultivation was determined based on the total biomass production. The highest growth rate of 0.423/day was achieved using a 5% leachate medium under 12 h light duration, and the highest carbon fixation of 1.317 g CO2/L/day was calculated using a culture supplemented with 5% leachate with 24 h light period. The high presence of nutrients in the leachate has contributed to the growth of the microalgae; thus, it has great potential as an alternative growth medium to support biomass production and subsequently help to mitigate global warming.

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Section: Co2 Fixation By the Microalgaementioning

confidence: 93%

Sustainable Cultivation of Desmodesmus armatus SAG276.4d using Leachate as a Growth Supplement for Simultaneous Biomass Production and CO2 Fixation

Fuad

Khalid

Kamarudin

2021

Int. J. Renew. Energy Dev.

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“…Additionally, even after the anaerobic stabilization stage, the derived AP-POME still has a residual high biochemical and chemical oxygen demand, as well as a high concentration of nitrogen, that are above the levels permitted by most environmental policies and regulations PLOS ONE [10]. Table 2 shows that Chlamydomonas biconvexa Embrapa|LBA40 culturing in AP-POME leads to 34.7% reduction of the nitrate after 15 days of cultivation, as well as 99% reduction of the nitrite and ammoniacal nitrogen levels present in the effluent after 5 days of cultivation.…”

Section: Effect Of Algal Cultivation On Anaerobic Pond Palm Oil Mill mentioning

confidence: 99%

“…The main advantages are the high efficiency for organic and solid matter removal and the low cost of implementation and maintenance. However, pond systems require large areas, long stabilization periods (usually over 3 months) and do not completely eliminate the organic and inorganic load of the wastewater [9,10].…”

Section: Introductionmentioning

confidence: 99%

Biochemical and phylogenetic characterization of the wastewater tolerant Chlamydomonas biconvexa Embrapa|LBA40 strain cultivated in palm oil mill effluent

et al. 2021

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The increasing demand for water, food and energy poses challenges for the world´s sustainability. Tropical palm oil is currently the major source of vegetable oil worldwide with a production that exceeds 55 million tons per year, while generating over 200 million tons of palm oil mill effluent (POME). It could potentially be used as a substrate for production of microalgal biomass though. In this study, the microalgal strain Chlamydomonas biconvexa Embrapa|LBA40, originally isolated from a sugarcane vinasse stabilization pond, was selected among 17 strains tested for growth in POME retrieved from anaerobic ponds of a palm oil industrial plant located within the Amazon rainforest region. During cultivation in POME, C. biconvexa Embrapa|LBA40 biomass productivity reached 190.60 mgDW • L-1 • d-1 using 15L airlift flat plate photobioreactors. Carbohydrates comprised the major fraction of algal biomass (31.96%), while the lipidic fraction reached up to 11.3% of dry mass. Reductions of 99% in ammonium and nitrite, as well as 98% reduction in phosphate present in POME were detected after 5 days of algal cultivation. This suggests that the aerobic pond stage, usually used in palm oil industrial plants to reduce POME inorganic load, could be substituted by high rate photobioreactors, significantly reducing the time and area requirements for wastewater treatment. In addition, the complete mitochondrial genome of C. biconvexa Embrapa|LBA40 strain was sequenced, revealing a compact mitogenome, with 15.98 kb in size, a total of 14 genes, of which 9 are protein coding genes. Phylogenetic analysis confirmed the strain taxonomic status within the Chlamydomonas genus, opening up opportunities for future genetic modification and molecular breeding programs in these species.

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“…Such limitations may be overcome by a three-level statistical design as it can minimize the total number of experiments, provide appropriate models for process optimization and give better illustration of the inter-variable interactions. The most well-known statistical approach is response surface methodology (RSM), which consists of a central composite design (CCD) (Lingamdinne et al 2020), Box-Behnken design (BBD) (Bahari et al 2019) and D-optimal design (Ba-Abbad et al 2013;Hariz et al 2018). RSM has been proven to provide significantly improved results using few experimental runs.…”

Section: Introductionmentioning

confidence: 99%

Optimizing and control of effective synthesize parameters for Fe3O4 nanoparticles using response surface methodology

et al. 2022

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To control Fe3O4 nanoparticles (Fe3O4 NPs) size, different molar ratio of Fe2+ and Fe3+ as well as ammonium hydroxide (pH) was used to synthesize Fe3O4 NPs through co-precipitation method. The Box–Behnken design was selected to explore the interaction between process parameters (factors) such as Fe2+ molar ion, Fe3+ molar ion and pH on the final size. The interactive effect between the process variables was evaluated by analysis of variance (ANOVA). The quadratic model predicted by the Box–Behnken design was significant with a P value of < 0.0001. The optimum synthesis conditions were predicted by the model indicating optimum size obtained using 1.00 mol Fe2+ ion with 3.00 mol Fe3+ ion with pH at 12.00. From the experiment, the particle size was 10 ± 2 nm at optimum conditions, while the model predicted a particle size of 6.80 nm. The magnetic properties of Fe3O4 NPs were displayed typical ferromagnetic behavior with saturation magnetization value to be 49.729 emu/g. Finally, the optimized Fe3O4 NPs showed about 80% removal of Congo red (CR) dye, which confirms their applicability in adsorption process for future applications.

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CO2 fixation capability of Chlorella sp. and its use in treating agricultural wastewater

Cited by 36 publications

References 58 publications

Sustainable Cultivation of Desmodesmus armatus SAG276.4d using Leachate as a Growth Supplement for Simultaneous Biomass Production and CO2 Fixation

Sustainable Cultivation of Desmodesmus armatus SAG276.4d using Leachate as a Growth Supplement for Simultaneous Biomass Production and CO2 Fixation

Biochemical and phylogenetic characterization of the wastewater tolerant Chlamydomonas biconvexa Embrapa|LBA40 strain cultivated in palm oil mill effluent

Optimizing and control of effective synthesize parameters for Fe3O4 nanoparticles using response surface methodology

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