Characterization and performances of an Algerian diatomite-based gas chromatography support

Hadjadj-Aoul, O.; Belabbes, Ramdan; Belkadi, Mustapha; Guermouche, M. H.

doi:10.1016/j.apsusc.2004.06.108

Cited by 23 publications

(6 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The XR-diffractogram of diatomite is shown in Figure 2. The prominent peaks correspond to quartz, calcite, cristobalite, and a mixture of kaolinite, smectite, and hematite [46][47][48].…”

Section: Characterization Of the Raw Diatomitementioning

confidence: 99%

Valorization of diatomaceous earth as a sustainable eco-coagulant for wastewater treatment: optimization by response surface methodology

et al. 2022

View full text Add to dashboard Cite

The use of natural, eco-friendly coagulant-flocculants in wastewater treatment can help to reduce suspended particles in a way that includes less exhaustible materials with minimal adverse effects on the environment. Hence, this study is to investigate raw diatomaceous earth (diatomite) as a sustainable ecological coagulant to reduce colloids and suspended matter in wastewater and optimize the coagulation process parameters to improve efficiency, save energy consumption, and reduce costs in the urban sewage treatment plants. The Box-Behnken response surface design was applied to model the individual and combined interactions between four variable factors (initial pH, coagulant dose, coagulation speed, and coagulation time) and their effect on turbidity removal efficiency and final pH of water. Results showed that diatomite has excellent efficiency in reducing the turbidity of wastewater; Elimination reached a maximum of 85.74%. The optimal operating conditions for reducing energy consumption and cost of the operation while improving turbidity removal effectiveness and achieving a neutral final pH to avoid a post-adjustment are an initial pH of 7, a dose of diatomite of 0.5 g/L of effluent, and a coagulation speed of 100 rpm for 3 min. It results in 72.6% turbidity removal and a pH of 7.27. diatomaceous earth shows very usefully for reducing the turbidity of the sewage in the urban wastewater treatment plant.

show abstract

“…The XR-diffractogram of diatomite is shown in Figure 2. The prominent peaks correspond to quartz, calcite, cristobalite, and a mixture of kaolinite, smectite, and hematite [46][47][48].…”

Section: Characterization Of the Raw Diatomitementioning

confidence: 99%

Valorization of diatomaceous earth as a sustainable eco-coagulant for wastewater treatment: optimization by response surface methodology

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The mineral impurities on the EAS surface were removed by thoroughly washing with (10% v/v) HCl and then washing to the neutrality (26). Leaching of amorphous silica extracted from crude diatomite was carried out with a solid-liquid ratio of 1:2 volumes; the amorphous silica was in contact with HCl (10%) at 100 °C for 3 hrs under moderate agitation (300 rpm), in an agitated vessel of 500 mL capacity, equipped with a reflux heating system to maintain the acid concentration constant.…”

Section: Preparation Of Treated Extract Of Amorphous Silica (Teas)mentioning

confidence: 99%

Characterization of new adsorbent prepared from apricot stones activated carbon mixed with amorphous SiO2 from Algerian diatomite for removal of p-nitroaniline

et al. 2021

View full text Add to dashboard Cite

This work aims to evaluate the adsorption efficiency of p-nitroaniline (PNA) onto apricot stones activated carbon (ASAC) mixed with treated extract of amorphous SiO2 (TEAS), prepared from Algerian diatomite (AD). The best removal percentage (85%) is obtained for a ratio ASAC/TEAS (1/1). Adsorbent characteristics are investigated by the Brunauer-Emmett-Teller (BET), the scanning electron microscope (SEM), infrared spectroscopy (IR), X-ray fluorescence (XRF) and X-ray diffraction (XRD). The impregnation of TEAS and ASAC produces good adsorbent properties towards PNA especially in the ratio (1/1) and an increase in the specific surface. The isotherm data are well fitted by the Langmuir and Freundlich models. The maximum PNA uptake obtained is 94.34 mg g-1. The performances of ASAC/TEAS for the PNA adsorption were compared with some adsorbents previously studied for the same purpose, and results show that the composite in the present work exhibit better performances. The adsorption behavior of the concerned material is explained on the basis of its chemical nature and porous texture.

show abstract

“…Concerning Bû Baghla, as mentioned in Section 3.3, rumors circulated about his willingness to marry her, while Lalla Fatma couldn't contract a new marriage since her husband didn't consent to divorcing her, as in Feredj [8] (p. 133). Not surprisingly, TV and cinema fictions on Lalla Fatma's life (Janadi [31] and Hadjadj [32]) focused on this alleged impossible love story.…”

Section: Resistance To the Frenchmentioning

confidence: 99%

Lalla Fatma N’Soumer (1830–1863): Spirituality, Resistance and Womanly Leadership in Colonial Algeria

Touati

2018

Societies

View full text Add to dashboard Cite

Lalla Fatma N'Soumer (1830-1863) is one of the major heroines of Algerian resistance to the French colonial enterprise in the region of Kabylia. Her life and personality have been surrounded by myths and mysteries. Although her name is mentioned in colonial chronicles recording the conquest of Algeria, her exact role in leading a movement of local resistance to the French army doesn't seem to be very clear. This paper aims at shedding light on this exceptional Berber woman through the analysis of French colonial sources describing these military campaigns-despite their obvious bias-and later secondary sources. This paper focuses on the spiritual dimension which has been somehow overlooked in the existing literature. It precisely describes her family background whereby her ancestry goes back to a marabout lineage affiliated with the Rah . māniyya sufi order. It argues that her level of education in spiritual and religious matters was probably higher than what had been so far assumed. This article discusses how this spiritual aspect helps explain the tremendous popularity she enjoyed among her people in Kabylia, where she has been considered almost a saint.

show abstract

Characterization and performances of an Algerian diatomite-based gas chromatography support

Cited by 23 publications

References 11 publications

Valorization of diatomaceous earth as a sustainable eco-coagulant for wastewater treatment: optimization by response surface methodology

Valorization of diatomaceous earth as a sustainable eco-coagulant for wastewater treatment: optimization by response surface methodology

Characterization of new adsorbent prepared from apricot stones activated carbon mixed with amorphous SiO2 from Algerian diatomite for removal of p-nitroaniline

Lalla Fatma N’Soumer (1830–1863): Spirituality, Resistance and Womanly Leadership in Colonial Algeria

Contact Info

Product

Resources

About