Efficient treatment of rice byproducts for preparing high-performance activated carbons

Basta, Altaf H.; Lotfy, Vivian F.; Hasanin, Mohamed S.; Trens, Philippe; El‐Saied, Houssni

doi:10.1016/j.jclepro.2018.09.216

Cited by 47 publications

(20 citation statements)

References 36 publications

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“…The benefit of using the black liquor from neutral sulfite pulping as precursor for production of AC is proved when its adsorption capacity of MB and I 2 are compared with the previous published articles dealing with lignin-based ACs (table 6). Here, the adsorption capacity of BL-RS-AC surpasses the ACs investigated in most literature that reported on lignin-based ACs [57–60].…”

Section: Resultsmentioning

confidence: 80%

Electiveness of agro-pulping process in the sustainable production of black liquor-based activated carbons

Lotfy

Basta

2019

R. Soc. open sci.

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During the production of paper pulp, the waste water loaded with organic materials from pulping process is discharged. Therefore, water treatment should be performed before disposing of such effluent. The use of such effluent for production of activated carbon will be effective in omitting the wastewater treatment and in obtaining the product required in many industries. In this respect, this paper deals with evaluating the performance of activated carbons (ACs) produced from black liquors (BLs) as by-products from three pulping processes of rice straw (RS) and sugar-cane bagasse (SCB), namely: alkaline, sulfite and neutral sulfite, which are coded SP, SSP and NSP, respectively. Elemental analysis and thermal analysis (TGA and DTGA) are carried out on the BLs, while the surface area ( S BET ), micro-/mesoporous distribution, adsorption capacity of methylene blue (MB) and iodine (I 2 -value), as well as Fourier transform infrared spectra (FT-IR) and scanning electron micrograph (SEM) are studied on synthesizing ACs. The optimal pulping approach for achieving BL-based AC, with the following characteristics: specific surface area ( S BET ) ∼ 921 and 545 m 2 g −1 , MB adsorption capacity 238 and 370 mg g −1 , and I 2 -value 928 and 1255 mg g −1 of BL-based ACs, are from neutral sulfite pulping of SCB (B-NSP) and RS (RS-NSP), respectively. These finding data are ascribed to the carbon content of BL, as well as greatest total volume ( V T 0.786 and 0.701 cm 3 g −1 ) together with decreasing the volume of micropores/total (38 and 48%) of BL-NSP-ACs. It is interesting to note that the AC provided from RS-NSP has greater adsorption capacity for I 2 and MB than the AC produced from RS-pulp fibres.

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Section: Resultsmentioning

confidence: 80%

Electiveness of agro-pulping process in the sustainable production of black liquor-based activated carbons

Lotfy

Basta

2019

R. Soc. open sci.

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“…Band positions and assignments are recorded according to the previously published results [51]. The shape of all the spectra is identical to those of other prepared ACs with different methods [6,50,52]. The displayed features in the spectral domain ranging from 2900 cm -1 to 3300 cm -1 are attributed to the OH hydroxyl groups.…”

Section: Resultsmentioning

confidence: 90%

“…Rice straw represents the most unutilized crop residue in Egypt, accounting for 3.61 million tons per year [2][3][4][5]. It causes environmental pollution and contributes to black cloud formation when it is burned in the open atmosphere [6]. Therefore, its exploitation in the industrial sector will certainly contribute to improving the ecological environment as well as participating in technological development [7].…”

Section: Introductionmentioning

confidence: 99%

Structural-Property Relationship in Activated Carbon Synthesized from Rice Straw for Electronic Application

daiem¹,

Alotaibi²,

Alosime³

et al. 2020

Pol. J. Environ. Stud.

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Activated carbons have been prepared from rice straw by considering the material forms of rice straw, the chemical activation agent and the preparation method. The study seeks optimal conditions for giving better mico-and nano-properties, and to support the corresponding molecular structure. All the obtained results are referred to those of a commercial sample. Fourier transform infrared absorption, X-ray photoelectron spectroscopy, and dispersive X-ray spectroscopy are combined to determine functional groups. Moreover, a quantum chemical calculation has been done using density functional theory to argue the proposed molecular structure. Principally, the vibrational properties are compared to experimental results, and the corresponding electronic structure is calculated. Thermal stability and eventual reactions are evidenced by both differential and gravimetric thermal analysis. The surface topography of the resulting activated carbon is checked by scanning electron microscope and correlated with their chemical and textual characteristics carried out from Brunauer, Emmett and Teller analysis. Results illustrate that the resulting product is a mixture of carbon graphic structure and acidic/basic entities and exhibit a global acidic pH. The use of KOH as oxidant agent and the ground raw material form leads to obtain good properties such as higher surface area and higher porosity. Based on the size compatibility making it possible to introduce low-radius single-walled carbon nanotubes, the electronic structures of the prepared activated carbon and that of chiral (5,5) SWCNTs and their corresponding *

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“…It also takes a long time to cultivate anammox bacteria in granular sludge to produce high activity. With a porous structure and high thermal stability, activated carbon (AC) can be used as an adsorbent, catalyst, or catalyst carrier for various industrial applications (such as wastewater treatment, discoloration, and recovery of chemicals) (Basta et al, 2019). AC is a good prospective candidate as the carrier of anammox granular sludge.…”

Section: Introductionmentioning

confidence: 99%

Rapid start-up of anammox reactor using granular sludge supported on activated carbon

2020

Global NEST: The International Journal

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<p>The long start-up time and high demand of anaerobic ammonium oxidation (anammox) limit the practical applications of the anammox process. In this study, granular sludge supported on activated carbon (AC) was used as seed sludge. The start-up time of the reactor was substantially shortened, and the expanded granular sludge bed (EGSB) reactor could be started quickly (in only 17 days). The nitrogen load rate (NLR) increased from 0.61 kg m-3 d-1 to 1.19 kg m-3 d-1, the removal rate of total nitrogen (TN) increased from 78.04% to83.15%, and the final ratio NH4+: NO2-: NO3- was 1:1.33:0.30. Moreover, in the gas analysis phase, the reactor load could be further improved and increased to 1.70 kg m-3 d-1 from the 18th–22nd day, and the reactor run stably. During this period, N2O and CO2 production was 0.8% and 0.02%, respectively. According to the analysis of microorganisms, the main functional microorganism in the reactor was Candidatus Kuenenia. The content of Candidatus Kuenenia increased by 5.45% after the reactor was started successfully. The color of sludge was brick red. This showed that the operation mode and inoculated sludge employed in this study are highly effective for the fast start-up of an EGSB reactor.</p>

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Efficient treatment of rice byproducts for preparing high-performance activated carbons

Cited by 47 publications

References 36 publications

Electiveness of agro-pulping process in the sustainable production of black liquor-based activated carbons

Electiveness of agro-pulping process in the sustainable production of black liquor-based activated carbons

Structural-Property Relationship in Activated Carbon Synthesized from Rice Straw for Electronic Application

Rapid start-up of anammox reactor using granular sludge supported on activated carbon

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