Quantitative detection of powdered activated carbon in wastewater treatment plant effluent by thermogravimetric analysis (TGA)

Krahnstöver, Thérèse; Plattner, Julia; Wintgens, Thomas

doi:10.1016/j.watres.2016.06.008

Cited by 23 publications

(7 citation statements)

References 20 publications

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“…The behavior of TGA curves with a heating step in oxygen of DPF as illustrated in Figure 5 comprises of 157, 445, 540 and 724 • C. The first peak at 157 • C can be explained by the volatilization, hemicelluloses material in TFC and the moisture loss from the surface. The evaporation of these smaller volatile molecules due to the decomposition of thermal treatment [48]. Until the temperature reached 445 • C, the massive loss of DPF sample was documented at only 20%.…”

Section: Thermogravimetric Analysis (Tga)mentioning

confidence: 99%

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Synthesis and Characterization of Natural Extracted Precursor Date Palm Fibre-Based Activated Carbon for Aluminum Removal by RSM Optimization

et al. 2019

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The Powder-Activated Carbon (PAC) under optimum conditions from a new low-cost precursor Date Palm Fibre (DPF) biomass through a carbonization followed by KOH activation has been synthesized by response surface methodology (RSM) combined with central composite design (CCD). The special effects of activation temperature, time, and impregnation ratio on bio-PAC Aluminum (Al3+) removal and uptake capacity were examined. The optimum conditions for synthesized bio-PAC were found to be 99.4% and 9.94 mg·g−1 for Al3+ removal and uptake capacity, respectively at activation temperature 650 °C, activation time 1h and impregnation ratio 1. The optimum bio-PAC was characterized and analyzed using FESEM, FTIR, XRD, TGA, BET, and Zeta potential. RSM-CCD experimental design was used to optimize removal and uptake capacity of Al3+ on bio-PAC. Optimum conditions were found to be at bio-PAC dose of 5 mg with pH 9.48 and contact time of 117 min. Furthermore, at optimized conditions of Al3+ removal, kinetic, and isotherm models were investigated. The results reveal the feasibility of DPF biomass to be used as a potential and cost-effective precursor for synthesized bio-PAC for Al3+ removal.

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Section: Thermogravimetric Analysis (Tga)mentioning

confidence: 99%

“…The first peak at 157 °C can be explained by the volatilization, hemicelluloses material in TFC and the moisture loss from the surface. The evaporation of these smaller volatile molecules due to the decomposition of thermal treatment [48]. Until the temperature Figure 3.…”

Section: Thermogravimetric Analysis (Tga)mentioning

confidence: 99%

Synthesis and Characterization of Natural Extracted Precursor Date Palm Fibre-Based Activated Carbon for Aluminum Removal by RSM Optimization

et al. 2019

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“…The abundance of bacteria in the group with diarrhoea incidence was significantly lower than that in group I (negative control group), and these bacteria were considered to have the effect of inhibiting diarrhoea during the food supplementation period. The thermogravimetry method was used to determine the water content in stool (Krahnstover et al ., 2016).…”

Section: Methodsmentioning

confidence: 99%

Breast milk contains probiotics with anti‐infantile diarrhoea effects that may protect infants as they change to solid foods

Niu

Zhou

Zhang³

et al. 2021

Environmental Microbiology

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Infants often experience complementary foodinduced diarrhoea (CFID), which occurs when infants switch from breast milk to solid foods. The relative abundances of Prevotella and Rothia were higher in stools of infants with CFID, while the relative abundances of Enterococcus and Escherichia were higher in healthy infants. The abundance of Lactobacillus spp. normally found in breast milk fed to infants with CFID was significantly reduced, and Enterococcus spp. were less abundant when diarrhoea occurred. Furthermore, Lactobacillus and Enterococcus were present as shared bacteria in both mother and infant, and they were considered potential anti-CFID probiotics as their relative abundances in breast milk were negatively correlated to infant CFID. Kyoto encyclopedia of genes and genomes (KEGG) functional analysis showed that the function of amino acid metabolism differed between infants with CFID and healthy infants. Therefore, CFID might be related to the decomposition of proteins in food supplements. The screening revealed seven hydrolytic casein and five hydrolytic casein and rice protein isolates from 320 suspected Lactobacillus and Enterococcus isolates. The animal experiments demonstrated that a mixture of five isolates effectively hydrolysed the casein and rice protein and prevented diarrhoea in young rats. Thus, the occurrence of CFID was found to be closely related to the intestinal and breast milk microbiota, and bacteria that could assist in the digestion of cereal proteins were involved in CFID.

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“…Figure 11 shows that sample mass of AC only decreased slightly throughout the measurement, remaining stable up to 700 • C before showing signs of decomposition. The relatively stagnant phase also indicates high AC hydrophobicity since not much removal of weakly adsorbed water is observed before 150 • C [49]. On the other hand, mass loss above 700 • C corresponds to the decomposition of functional groups and the result of partial gasification of the least thermally stable fragments contained in the carbon structure [50].…”

Section: Tgamentioning

confidence: 99%

Can metal organic frameworks outperform adsorptive removal of harmful phenolic compound 2-chlorophenol by activated carbon?

Azmi

Ladewig

2020

Chemical Engineering Research and Design

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Removal of persistent organic compounds from aqueous solutions is generally achieved using adsorbent like activated carbon (AC) but it suffers from limited adsorption capacity due to low surface area. This paper describes a pioneering work on the adsorption of an organic pollutant, 2-chlorophenol (2-CP) by two MOFs with high surface area and water stability; MIL-101 and its amino-derivative, MIL-101-NH 2 .Although MOFs have higher surface area than AC, the latter was proven better having the highest equilibrium 2-CP uptake (345 mg.g -1), followed by MIL-101 (121 mg.g -1 ) and MIL-101-NH 2 (84 mg.g -1 ). Used MIL-101 could be easily regenerated multiple times by washing with ethanol and even showed improved adsorption capacity after each washing cycle. These results can open the doors to meticulous adsorbent selection for treating 2-CP-contaminated water File list (2) download file view on ChemRxiv manuscript.pdf (472.28 KiB) download file view on ChemRxiv SI.pdf (1.85 MiB) Article Can metal organic frameworks outperform adsorptive removal of harmful phenolic compound 2-chlorophenol by activated carbon?

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Quantitative detection of powdered activated carbon in wastewater treatment plant effluent by thermogravimetric analysis (TGA)

Cited by 23 publications

References 20 publications

Synthesis and Characterization of Natural Extracted Precursor Date Palm Fibre-Based Activated Carbon for Aluminum Removal by RSM Optimization

Synthesis and Characterization of Natural Extracted Precursor Date Palm Fibre-Based Activated Carbon for Aluminum Removal by RSM Optimization

Breast milk contains probiotics with anti‐infantile diarrhoea effects that may protect infants as they change to solid foods

Can metal organic frameworks outperform adsorptive removal of harmful phenolic compound 2-chlorophenol by activated carbon?

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