Microalgal bioremediation of heavy metal pollution in water: Recent advances, challenges, and prospects

Yan, Chicheng; Qu, Zhengzhe; Wang, Jieni; Cao, Lu; Han, Qiuxia

doi:10.1016/j.chemosphere.2021.131870

Cited by 104 publications

(31 citation statements)

References 90 publications

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“…Kelompok-kelompok ini dengan cepat dihidrolisis pada suhu tertentu dan melepaskan ion dan kation, sehingga memungkinkan sel alga untuk mengisi dan secara efisien menyerap ion logam berat di dalam air. Selanjutnya logam berat akan bereaksi dengan kelompok pada permukaan sel alga atau enzim pengikat pada permukaan membran plasma sel alga untuk membentuk kompleks, kristal, atau endapan sel, yang kemudian ditransfer ke bagian dalam sel alga melalui transportasi aktif dan akhirnya mengikat ke bagian pengikatan internal protein intraseluler dan peptida [28].…”

Section: ) Phunclassified

Kajian Fikoremediasi pada Air Tanah Tercemar Timbal dan Kadmium di Sekitar TPA Wukirsari, Gunungkidul

Fadhila¹,

Purwanti²

2022

JTITS

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Abstrak-Kehadiran TPA sering kali berpotensi menimbulkan pencemaran lingkungan seperti pencemaran air tanah yang disebabkan oleh lindi. Lindi dapat mengandung logam berat seperti timbal dan kadmium. Fikoremediasi menggunakan mikroalga menjadi salah satu alternatif untuk mengatasi pencemaran air tanah karena dinilai lebih sederhana, mudah diaplikasikan, dan tidak memberikan dampak negatif pada lingkungan dibandingkan metode remediasi secara fisik dan kimia. Studi ini mengkaji literatur yang membahas pencemaran timbal dan kadmium pada air tanah, pemanfaatan mikroalga dalam fikoremediasi, dan kemampuan Spirulina platensis dalam menyisihkan logam berat untuk pencemaran air tanah di TPA Wukirsari, Gunungkidul. Hasil kajian menunjukkan bahwa mikroalga memiliki enzim pada permukaan sel yang mampu mengikat logam berat. Penambahan Spirulina platensis pada air tanah tercemar di sekitar TPA Wukirsari menyebabkan konsentrasi timbal dan kadmium berkurang masing-masing sebesar 90% dan 85%.

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Section: ) Phunclassified

Kajian Fikoremediasi pada Air Tanah Tercemar Timbal dan Kadmium di Sekitar TPA Wukirsari, Gunungkidul

Fadhila¹,

Purwanti²

2022

JTITS

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“…Heavy metal pollution is one of such, and it remain so, partly owing to the high-level resource’s exploitation at industrial scale in a bid to provide fundamental needs. From the perspective of environmental safety, heavy metals (HMs) are defined as metals with inherent capacity to induce eco-physiological damages arising from their high toxicity 9 . In this regard, metals such as mercury (Hg), lead (Pb), silver (Ag), cadmium (Cd) and chromium (Cr) are mostly implicated.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of biocompatible Konjac glucomannan stabilized silver nanoparticles, with Asystasia gangetica phenolic extract for colorimetric detection of mercury (II) ion

Jayeoye

Eze

Olatunji

et al. 2022

Sci Rep

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Herein, the synthesis of a biocompatible silver nanoparticles (AgNPs), for colorimetric detection of toxic mercury (II) ion (Hg2+), is reported. Phenolic-rich fraction of Asystasia gangetica leaf was extracted and used as a reductant of silver salt, all within the hydrophilic konjac glucomannan (KgM) solution as stabilizer, at room temperature (RT). The bioactive components of Asystasia gangetica phenolic extract (AGPE), as elucidated with a (UHPLC-MS-QTOF-MS), revealed plethora of phenolic compounds, which can facilitate the reduction of silver salt at ambient conditions. Sparkling yellow colloidal solution of KgM-AgNPs was realized within 1 h, at RT, having a UV–vis maximum at 420 nm. KgM-AgNPs was characterized using UV–vis, Raman and (FTIR), TEM, SEM, EDS, XRD, TGA/DTG. TEM and FESEM images showed that KgM-AgNPs were spherical, with particle size distribution around 10–15 nm from TEM. The KgM-AgNPs biocompatibility was investigated on mouse L929 fibrobroblast and rat erythrocytes, without any harmful damages on the tested cells. In aqueous environment, KgM-AgNPs demonstrated good detection capacity toward Hg2+, in a Hg2+ concentration dependent fashion, within 3 min. Absorbance ratios (A360/A408) was linear with Hg2+ concentrations from 0.010–10.0 to 10.0–60.0 µM, with an estimated (LOD) of 3.25 nM. The probe was applied in lake water sample, with satisfactory accuracy.

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“…Microalgae such as Chlorella sp. have shown their priority in the field of environmental remediation, and their application and the mechanism of removing heavy metals from water were well discussed [ 37 , 38 ]. The aim of this work was to detect the effects of Cd on the growth and activities of PSI and PSII and CEF of the green alga Chlorella pyrenoidosa .…”

Section: Introductionmentioning

confidence: 99%

Cadmium Caused Different Toxicity to Photosystem I and Photosystem II of Freshwater Unicellular Algae Chlorella pyrenoidosa (Chlorophyta)

Wang

Wufuer

Duo

et al. 2022

Toxics

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Heavy metals such as Cd pose environmental problems and threats to a variety of organisms. The effects of cadmium (Cd) on the growth and activities of photosystem I (PSI) and photosystem II (PSII) of Chlorella pyrenoidosa were studied. The growth rate of cells treated with 25 and 100 µM of Cd for longer than 48 h were significantly lower than the control, accompanying with the inhibition of photosynthesis. The result of quantum yields and electron transport rates (ETRs) in PSI and PSII showed that Cd had a more serious inhibition on PSII than on PSI. Cd decreased the efficiency of PSII to use the energy under high light with increasing Cd concentration. In contrast, the quantum yield of PSI did not show a significant difference among different Cd treatments. The activation of cyclic electron flow (CEF) and the inhibition of linear electron flow (LEF) due to Cd treatment were observed. The photochemical quantum yield of PSI and the tolerance of ETR of PSI to Cd treatments were due to the activation of CEF around PSI. The activation of CEF also played an important role in induction of non-photochemical quenching (NPQ). The binding features of Cd ions and photosystem particles showed that Cd was easier to combine with PSII than PSI, which may explain the different toxicity of Cd on PSII and PSI.

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Microalgal bioremediation of heavy metal pollution in water: Recent advances, challenges, and prospects

Cited by 104 publications

References 90 publications

Kajian Fikoremediasi pada Air Tanah Tercemar Timbal dan Kadmium di Sekitar TPA Wukirsari, Gunungkidul

Kajian Fikoremediasi pada Air Tanah Tercemar Timbal dan Kadmium di Sekitar TPA Wukirsari, Gunungkidul

Synthesis of biocompatible Konjac glucomannan stabilized silver nanoparticles, with Asystasia gangetica phenolic extract for colorimetric detection of mercury (II) ion

Cadmium Caused Different Toxicity to Photosystem I and Photosystem II of Freshwater Unicellular Algae Chlorella pyrenoidosa (Chlorophyta)

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