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You searched for: Subject "Chlorella vulgaris" Remove constraint Subject: "Chlorella vulgaris"
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1. Capturing effects of filamentous fungi Aspergillus flavus ZJ-1 on microalgae Chlorella vulgaris WZ-1 and the application of their co-integrated fungi-algae pellets for Cu(II) adsorption

Author:
Chao Zhang; Minwang Laipan; Lei Zhang; Shenghui Yu; Yongtao Li; Junkang Guo
Source:
Journal of hazardous materials 2023 v.442 pp. 130105
ISSN:
0304-3894
Subject:
Chlorella vulgaris,   etc   ; Aspergillus flavus; adsorption; aqueous solutions; biomass; microalgae; mycelium; pH; remediation; sorption isotherms; wastewater; water treatment;     Show all 12 Subjects
Abstract:
... Using filamentous fungi to capture unicellular microalgae is an effective way for microalgae recovery in water treatment. Here, fungi Aspergillus flavus ZJ-1 and microalgae Chlorella vulgaris WZ-1 isolated from a copper tailings pond were used to study the capture effect of ZJ-1 on WZ-1. The highest capture efficiency (97.85%) was obtained within 6 h under the optimized conditions of 30 °C, 150 rp ...
DOI:
10.1016/j.jhazmat.2022.130105

2. Multistage optimization of growth and physiological condition of brackish green microalgae with the use of natural waters

Author:
Marek Klin; Filip Pniewski; Adam Latała
Source:
Aquaculture 2023 v.562 pp. 738820
ISSN:
0044-8486
Subject:
Chlorella vulgaris,   etc   ; Monoraphidium; absorbance; aquaculture; biochemistry; biomass; brackish water; carotenoids; chlorophyll; culture media; microalgae; nitrogen; physiological state; salt stress; water salinity;     Show all 15 Subjects
Abstract:
... We investigated the achievable maxima of optimisation of both growth and physiological condition of the preselected, Baltic green microalgae strains Chlorella vulgaris and Monoraphidium convolutum. The optimisation was divided into 3 consecutive stages of 8 days batch cultures, each focused on the effect of different set of factors on microalgae growth. The conditions identified as the most optima ...
DOI:
10.1016/j.aquaculture.2022.738820

3. Continuous electrocoagulation of Chlorella vulgaris in a novel channel-flow reactor: A pilot-scale harvesting study

Author:
Simona Lucakova; Irena Branyikova; Sara Kovacikova; Jiri Masojidek; Karolina Ranglova; Tomas Branyik; Marek C. Ruzicka
Source:
Bioresource technology 2022 v.351 pp. 126996
ISSN:
0960-8524
Subject:
Chlorella vulgaris,   etc   ; biomass; centrifugation; electrocoagulation; energy; microalgae;     Show all 6 Subjects
Abstract:
... The most frequently used method to harvest microalgae on an industrial scale is centrifugation, although this has very high energy costs. To reduce these costs, a continuous electrocoagulation process for harvesting Chlorella vulgaris was developed and tested using a pilot-scale 111 L working volume device consisting of an electrolyser with iron electrodes, aggregation channel and lamellar settler ...
DOI:
10.1016/j.biortech.2022.126996

4. Uptake of Cu2+ by unicellular microalga Chlorella vulgaris from synthetic wastewaters is attenuated by polystyrene microspheres

Author:
Imania Ghaffar; Arshad Javid; Shahid Mehmood; Ali Hussain
Source:
Chemosphere 2022 v.290 pp. 133333
ISSN:
0045-6535
Subject:
Chlorella vulgaris,   etc   ; genes; microalgae; microparticles; microplastics; polystyrenes; wastewater;     Show all 7 Subjects
Abstract:
... Aquatic and terrestrial ecosystems are receiving micro- and macro-plastic pollutants alarmingly from various anthropogenic activities. The complications caused by microplastics are largely unexplored and need substantial studies. In the current study, we investigated the repressive effects of negatively and positively charged polystyrene microspheres of two variable sizes (0.05 and 0.5 μm) on func ...
DOI:
10.1016/j.chemosphere.2021.133333

5. Harvesting Chlorella vulgaris by electro-flotation with stainless steel cathode and non-sacrificial anode

Author:
Wenkui Li; Yali Zhang; Yue Hu; Shanshan Luo; Xiaodan Wu; Yuhuan Liu; Andy Min; Roger Ruan
Source:
Bioresource technology 2022 v.363 pp. 127961
ISSN:
0960-8524
Subject:
Chlorella vulgaris,   etc   ; anodes; cathodes; microalgae; polymers; stainless steel; technology;     Show all 7 Subjects
Abstract:
... As a promising method for efficiently harvesting microalgae, electro-flotation’s performance is related to various factors including electrode design and process operating parameters. In this paper, bubble generation behavior on stainless-steel cathodes, with wire diameters of 0.8 mm, 0.2 mm and 0.05 mm, was studied. The results show that the bubble size increased with the increasing diameter of t ...
DOI:
10.1016/j.biortech.2022.127961

6. Microwave catalytic co-pyrolysis of chlorella vulgaris and oily sludge: Characteristics and bio-oil analysis

Author:
Chunxiang Chen; Hongjian Ling; Song Qiu; Xiaodong Huang; Dianzhao Fan; Jian Zhao
Source:
Bioresource technology 2022 v.360 pp. 127550
ISSN:
0960-8524
Subject:
Chlorella vulgaris,   etc   ; biofuels; furnaces; nickel oxide; pyrolysis; sludge; synergism;     Show all 7 Subjects
Abstract:
... Co-pyrolysis of Chlorella vulgaris (CV) and Oily sludge (OS) under different mixing ratios were investigated by microwave furnace. NiO, activated carbon (AC) and their 1:1 compound (N1A1) with different additions (5%, 10%, 15% and 20%) were selected as microwave additives to study the effects on optimum mixing ratio of co-pyrolysis. The results indicated that mixing ratio of CV/OS = 1:1 (C1O1) was ...
DOI:
10.1016/j.biortech.2022.127550

7. Influence of augmentation of biochar during anaerobic co-digestion of Chlorella vulgaris and cellulose

Author:
Jessica Quintana-Najera; A. John Blacker; Louise A. Fletcher; Andrew B. Ross
Source:
Bioresource technology 2022 v.343 pp. 126086
ISSN:
0960-8524
Subject:
Chlorella vulgaris,   etc   ; anaerobic digestion; biochar; biogas; cellulose; methane production; microalgae;     Show all 7 Subjects
Abstract:
... The anaerobic co-digestion (AcoD) of microalgae is a prospective option for generating biomethane from renewable sources. This study investigates the effects of inoculum-to-substrate ratio (ISR), C/N ratio and biochar (BC) load on the AcoD of Chlorella vulgaris and cellulose. An initial augmentation of BC at ISR 0.5–0.9 and C/N ratio 10–30 offered a pH buffering effect and resulted in biomethane y ...
DOI:
10.1016/j.biortech.2021.126086

8. Microalgal flocculation and sedimentation: spatiotemporal evaluation of the effects of the pH and calcium concentration

Author:
Yuanjun Xia; Masatoshi Kishi; Youta Sugai; Tatsuki Toda
Source:
Bioprocess and biosystems engineering 2022 v.45 no.9 pp. 1489-1498
ISSN:
1615-7591
Subject:
Chlorella vulgaris,   etc   ; adhesion; bioprocessing; calcium; flocculation; industry; microalgae; pH; sediments;     Show all 9 Subjects
Abstract:
... The high cost of harvesting microalgae is a major hurdle for the microalgae industry, and an efficient pre-concentration method is required. In this study, the effects of using different pH values (between pH 3 and 11) and calcium (Ca²⁺) concentrations (between 0 and 5 mM) on Chlorella vulgaris sedimentation were investigated by evaluating the spacio-temporal distributions of microalgae cells. Fas ...
DOI:
10.1007/s00449-022-02758-0

9. Removal and fate of 18 bisphenols in lab-scale algal bioreactors

Author:
David Škufca; Franja Prosenc; Tjaša Griessler Bulc; Ester Heath
Source:
Science of the total environment 2022 v.804 pp. 149878
ISSN:
0048-9697
Subject:
Chlorella vulgaris,   etc   ; algae; biomass; bioreactors; chlorophyll; environment; hydrophobicity; pH; wastewater;     Show all 9 Subjects
Abstract:
... The removal of 18 bisphenols at wastewater relevant concentrations (μg L⁻¹ range) was investigated and compared between Chlorella vulgaris cultures with pH adjusted to 6.8 and pH non-adjusted cultures where pH raised to above 10. Bisphenols with a high partition coefficient (log P > 6) partitioned to biomass soon after spiking, whereas bisphenols with a low partition coefficient (log P < 4) remain ...
DOI:
10.1016/j.scitotenv.2021.149878

10. Efficient high-concentration dewatering of Chlorella vulgaris utilising spiral inertial microfluidics

Author:
Catherine Hill; Nik Willoughby; Helen Bridle
Source:
Bioresource technology reports 2022 v.18 pp. 101014
ISSN:
2589-014X
Subject:
Chlorella vulgaris,   etc   ; bioprocessing; dewatering; energy use and consumption; microalgae; microfluidic technology;     Show all 6 Subjects
Abstract:
... The aim of this study was to explore an alternative mode of operation for inertial focusing systems and determine the maximum inlet volume fractions at which device performance can be maintained (i.e. cell retention efficiency remains high, here defined as >95%). Microalgae dewatering was selected as a demonstrator application, specifically using Chlorella. A spiral inertial focusing device was ch ...
DOI:
10.1016/j.biteb.2022.101014

11. Enhanced cultivation and lipid production of isolated microalgae strains using municipal wastewater

Author:
Laila Dina Amalia Purba; Fatin Syahirah Othman; Ali Yuzir; Shaza Eva Mohamad; Koji Iwamoto; Norhayati Abdullah; Kazuya Shimizu; Joni Hermana
Source:
Environmental technology & innovation 2022 v.27 pp. 102444
ISSN:
2352-1864
Subject:
Chlorella vulgaris,   etc   ; Desmodesmus; biodiesel; environmental technology; microalgae; municipal wastewater; total phosphorus;     Show all 7 Subjects
Abstract:
... Cultivation of microalgae in wastewater is strongly related to the selection of suitable species for a specific type of wastewater. Thus, this study presented the cultivation of isolated microalgae strains, Acutodesmus obliquus CN01 and Desmodesmus maximus CN06 using municipal wastewater, along with Chlorella vulgaris NIES-1269 as the control species. The highest growth rate of 0.23/day was achiev ...
DOI:
10.1016/j.eti.2022.102444

12. Microalgal fractionation for lipids, pigments and protein recovery

Author:
Sara Obeid; Nicolas Beaufils; Jérôme Peydecastaing; Séverine Camy; Hosni Takache; Ali Ismail; Pierre-Yves Pontalier
Source:
Process biochemistry 2022 v.121 pp. 240-247
ISSN:
1359-5113
Subject:
Chlorella vulgaris,   etc   ; Nannochloropsis; cakes; chlorophyll; fractionation; microalgae; supercritical fluid extraction; temperature;     Show all 8 Subjects
Abstract:
... Microalgae fractionation was investigated combining supercritical carbon dioxide extraction of lipids and pigments and protein extraction from the residues, on Chlorella vulgaris and Nannochloropsis oculata. The results indicated that for N. oculata, chlorophyll (a) is extracted rapidly and selectively apart from Chlorophyll (b), representing 34% and 0.41% in 30 min at 450 bar and 50 °C and up to ...
DOI:
10.1016/j.procbio.2022.07.002

13. View on a mechanistic model of Chlorella vulgaris in incubated shake flasks

Author:
Fabian Kuhfuß; Veronika Gassenmeier; Sahar Deppe; George Ifrim; Tanja Hernández Rodríguez; Björn Frahm
Source:
Bioprocess and biosystems engineering 2022 v.45 no.1 pp. 15-30
ISSN:
1615-7591
Subject:
Chlorella vulgaris,   etc   ; biomass; bioprocessing; bioreactors; culture flasks; mechanistic models; microalgae; nitrates;     Show all 8 Subjects
Abstract:
... Kinetic growth models are a useful tool for a better understanding of microalgal cultivation and for optimizing cultivation conditions. The evaluation of such models requires experimental data that is laborious to generate in bioreactor settings. The experimental shake flask setting used in this study allows to run 12 experiments at the same time, with 6 individual light intensities and light dura ...
DOI:
10.1007/s00449-021-02627-2

14. Removal of Phenolic Compounds from Olive Mill Wastewater by Microalgae Grown Under Dark and Light Conditions

Author:
Astrid Victoria Lindner; Daniel Pleissner
Source:
Waste and biomass valorization 2022 v.13 no.1 pp. 525-534
ISSN:
1877-2641
Subject:
Chlorella vulgaris,   etc   ; Monoraphidium; biomass; culture media; glucose; microalgae; olive mill wastewater; toxicity;     Show all 8 Subjects
Abstract:
... Phenolic compounds in olive mill wastewater (OMW) are considered an environmental threat due to their antimicrobial properties. Because of the metabolic versatility of microalgae, a biotic removal of these compounds seems a suitable approach. To investigate the biotic removal of phenolic compounds, the three microalgae species Chlorella vulgaris, Acutodesmus obliquus and Monoraphidium braunii were ...
DOI:
10.1007/s12649-021-01536-5

15. The concurrent production of lipid and lutein in Chlorella vulgaris triggered by light coupling nitrogen tactics

Author:
Yuqin Li; Zhenhua Qi; Yiwen Fan; Yufang Tang; Rong Zhou
Source:
Biochemical engineering journal 2022 v.182 pp. 108435
ISSN:
1369-703X
Subject:
Chlorella vulgaris,   etc   ; biomass; biosynthesis; lutein; microalgae; monounsaturated fatty acids; nitrogen; specific growth rate;     Show all 8 Subjects
Abstract:
... Co-production of multiple products was praised as potential scheme in expanding low-cost applications of microalgal biomass. This work explored concurrent accumulation of lipid/lutein in Chlorella vulgaris triggered by high-light (HL), moderate-light (ML) or low-light (LL) coupling nitrogen-depletion (ND), nitrogen-limitation (NL), and nitrogen-repletion (NR) tactics. Amongst all combination cases ...
DOI:
10.1016/j.bej.2022.108435

16. Least square and Gaussian process for image based microalgal density estimation

Author:
Linh Nguyen; Dung K. Nguyen; Truong X. Nghiem; Thang Nguyen
Source:
Computers and electronics in agriculture 2022 v.193 pp. 106678
ISSN:
0168-1699
Subject:
Chlorella vulgaris,   etc   ; agriculture; data collection; electronics; image analysis; microalgae; normal distribution; regression analysis;     Show all 8 Subjects
Abstract:
... Efficiently monitoring microalgal density in real time is critical in closed systems of cultivating algae. In the monitoring methods proposed in the literature, image based techniques present practically potential since they are nondestructive and more biosecured. However, in the existing image analysis methods, parameters of the color-to-grayscale conversion formulae are predefined and only appli ...
DOI:
10.1016/j.compag.2021.106678

17. Catalytic co-pyrolysis of Chlorella vulgaris and urea: Thermal behaviors, product characteristics, and reaction pathways

Author:
Zigan Huang; Zhaosheng Yu; Meirong Li; Yanhui Bin; Xikui Zhang; Chen Wei; Yanfen Liao; Anqing Zheng; Xiaoqian Ma
Source:
Journal of analytical and applied pyrolysis 2022 v.167 pp. 105667
ISSN:
0165-2370
Subject:
Chlorella vulgaris,   etc   ; catalysts; density functional theory; energy; morpholines; nitriles; pyrolysis; synergism; temperature; thermogravimetry; urea;     Show all 11 Subjects
Abstract:
... The catalytic pyrolysis behavior of Chlorella vulgaris (CV) with urea (UR), and its product distribution were investigated using TG-FTIR and Py-GC/MS. The mechanism of formation of nitrogen- and oxygen- containing compounds (NOCCs) were determined using density functional theory (DFT). The thermogravimetric results demonstrated that the introduction of UR reduced the temperature (342 ℃) of the mas ...
DOI:
10.1016/j.jaap.2022.105667

18. Effects of harvesting on morphological and biochemical characteristics of microalgal biomass harvested by polyacrylamide addition, pH-induced flocculation, and centrifugation

Author:
Unnikrishnan Kuzhiumparambil; Leen Labeeuw; Audrey Commault; Hang P. Vu; Luong N. Nguyen; Peter J. Ralph; Long D. Nghiem
Source:
Bioresource technology 2022 v.359 pp. 127433
ISSN:
0960-8524
Subject:
Chlorella vulgaris,   etc   ; Phaeodactylum tricornutum; Porphyridium; biomass; centrifugation; flocculation; freshwater; industry; metabolites; microalgae; pH; polyacrylamide;     Show all 12 Subjects
Abstract:
... The effects of microalgae harvesting methods on microalgal biomass quality were evaluated using three species namely the freshwater green alga Chlorella vulgaris, marine red alga Porphyridium purpureum and marine diatom Phaeodactylum tricornutum. Harvesting efficiencies of polyacrylamide addition, alkaline addition, and centrifugation ranged from 85 to 95, 59–92 and 100%, respectively, across thes ...
DOI:
10.1016/j.biortech.2022.127433

19. Quantifying the bioaccumulation of Pb to Chlorella vulgaris in the presence of dissolved organic matters with different molecular weights

Author:
Zhiqiang Shi; Haiyan Du; Changhui Wang; Huacheng Xu
Source:
Environmental science and pollution research 2022 v.29 no.47 pp. 70921-70932
ISSN:
0944-1344
Subject:
Chlorella vulgaris,   etc   ; bioaccumulation; dissolved organic matter; humic acids; pollution; research; risk assessment; rivers; toxicity;     Show all 9 Subjects
Abstract:
... Dissolved organic matter (DOM) is ubiquitous in natural waters which exhibits obvious effects on the toxicity of heavy metals. However, information on the toxicity of heavy metals in the presence of DOMs with different molecular weights (MWs) was still unclear. In this study, Suwannee river humic acid (SRHA) and algae-derived organic matter (ADOM) were selected as typical terrestrial and microbial ...
DOI:
10.1007/s11356-022-19699-6

20. Photoperiod influences the shape and scaling of freshwater phytoplankton responses to light and temperature

Author:
Meredith E. Theus; Tamara J. Layden; Nancy McWilliams; Stephen Crafton‐Tempel; Colin T. Kremer; Samuel B. Fey
Source:
Oikos 2022 v.2022 no.6 pp. e08839
ISSN:
0030-1299
Subject:
Chlorella vulgaris,   etc   ; Chlamydomonas reinhardtii; Cryptomonas; algae; autotrophs; freshwater; light intensity; meta-analysis; physiology; phytoplankton;     Show all 10 Subjects
Abstract:
... Light fluctuations are ubiquitous, exist across multiple spatial and temporal scales, and directly affect the physiology and ecology of photoautotrophs. However, the indirect effects of light fluctuations on the sensitivity of organisms to other key environmental factors are unclear. Here, we evaluate how photoperiod regime (period of time each day where organisms receive light), a dynamic element ...
DOI:
10.1111/oik.08839