Removal efficiency and mechanism of phycocyanin in water by zero-valent iron

Liu, Cheng; Chen, Dan-wen; Ren, Yuanyuan; Chen, Wei

doi:10.1016/j.chemosphere.2018.11.101

Cited by 17 publications

(2 citation statements)

References 42 publications

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“…Other chemical reagents, which were bought from nearby vendors, are of the analytical or biochemical quality. The standard substance was dissolved in 50% ethanol to create MTBE stock solution (10 mg mL1), which was then kept at 50°C [29]. For the creation of the MTBE standard curve, the stock solution was diluted to various concentrations ranging from 1.0 to 10g mL1 using 50% ethanol [30].…”

Section: 3hplc Techniquesmentioning

confidence: 99%

MTBE adsorption on surface modified adsorbent Kaolin-KOH – A study on Kinetic equilibrium and surface morphology

2023

Global NEST: The International Journal

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<p>The purpose of this research was to evaluate the effectiveness of low-cost adsorbents for the removal of MTBE by employing natural kaolin clay with surface modification by KOH. The feasibility of MTBE examination by High Pressure Liquid Chromatography (HPLC) in aqueous solution was investigated. To get rid of impurities, the kaolin clay goes through a beneficiated process. Then, the thermal procedure was carried out at 990°C to prepare the adsorbent. XRD, SEM, and FTIR were used to characterize the geochemical and surface characteristics of the kaolin adsorbent. Basic operation parameters were evaluated in the batch experiment, including beginning MTBE concentrations, pH, contact time, and adsorbent dosage. For three different sized columns that were 12cm, 8cm, and 4cm, respectively, the percentage removal efficiency for MTBE was recorded as 97.79%, 99.08%, and 98.13%. This study demonstrated that the adsorbent's contact time and retention period are crucial for the elimination of MTBE, as demonstrated by the Thomas model and Thomson model with R2 values of 97.81, 99.21, and 98.36.</p>

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Section: 3hplc Techniquesmentioning

confidence: 99%

MTBE adsorption on surface modified adsorbent Kaolin-KOH – A study on Kinetic equilibrium and surface morphology

2023

Global NEST: The International Journal

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“…In this study, the PC concentration was evidently not the main factor affecting the chromaticity of the lake (R 2 ¼ 0.03). Researchers have attempted to purify PC-containing water using zerovalent iron (Liu et al 2019) and chitosan (Lee et al 2016).…”

Section: Calculation Of Pc On Eutrophic Lakementioning

confidence: 99%

Detection of chlorophyll fluorescence as a rapid alert of eutrophic water

Chen

2021

Water Supply

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An in-situ detection of chlorophyll fluorescence was used in an innovative manner to detect eutrophic water, and the results were compared with the Carlson's Trophic State Index (CTSI) indicators. Eutrophication was due to climate warming and anthropogenic activities. The turbidity and chromaticity showed a strong linear relationship (R2 = 0.85) of the Bi Lake in Taipei city. Both the swimming area and the bridge are popular with the general public and had the worst turbidity (35.80–44.00 NTU) and chromaticity (495.37–552.27 Pt). The CTSI had a stronger linear relationship with the phycocyanin (PC) concentration (R2 = 0.605) than with any other three CTSI factors like chlorophyll-a concentration, total phosphorus (TP) concentration, and transparency. The TP pollution had a potential to cause an increase in PC concentration found in this study (R2 = 0.86). The absorbances of the water samples represented that the environment is PC (cyanobacteria) dominant in winter. The PC concentration in Bi Lake ranged from 75.55 to 80.24 μg/L and was higher with lower water temperature. Measurement of in-situ chlorophyll fluorescence is similar to lab-scale spectrophotometer (R2>0.92). The real-time detection of PC concentration could be the basis of a rapid alert system for biological threats to waters.

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