Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water

Pap, Sabolč; Knudsen, Tatjana Šolević; Radonić, Jelena; Maletić, Snežana; Igić, Saša; Sekulić, Maja Turk

doi:10.1016/j.jclepro.2017.06.083

Cited by 94 publications

(20 citation statements)

References 67 publications

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“…It is possible to extract some valuable compounds from organic waste such as pectine, fibers, antioxidants etc., but often vast quantities of lignocellulose fraction stay unused [1]. In order to minimize lignocellulosic waste a number of such materials have been investigated as adsorbents for the removal of heavy metals from the wastewaters: either in its native form [2,3], treated form [4,5,6], or in active carbon form [7,8,9]. Removal of heavy metals from aqueous solution by lignocellulosic materials is provided by the presence of various functional groups on their surface (hydroxyl, carbonyl, phosphate, amino and thiol groups plays a major role in heavy metals binding mechanism).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment

Šoštarić

Petrović

Pastor

et al. 2018

Journal of Molecular Liquids

100

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Locally available apricot (Prunus armeniaca L.) shells classified as a waste product from fruit processing, were alkali activated in order to develop an efficient heavy metal ions sorbent for water purification. To examine the changes occurred after alkali treatment, raw (SH) and modified apricot shells (SHM) were thoroughly characterized in terms of their chemical composition and surface properties. Chemical analysis revealed that alkaline treatment causes the disintegration of hemicellulose (its content decreased from 19.2 to 3.5 %), which was in accordance with FTIR results. SEM micrographs and the mercury intrusion porosimetry revealed a larger surface area and porosity of SHM. Bohem's acid-base titration method indicated that the most of the SHM surface carboxylic groups were in sodium salt form and together with the pH of points of zero charge showed increase of surface alkalinity after modification. Treatment with NaOH enhanced the adsorption capacity by 154, 61 and 90 % for Cu 2+ , Zn 2+ and Pb 2+ , respectively. The amount of cations released from SHM was almost equal to the amount of adsorbed metal ions, suggesting ion exchange mechanism. The pseudo-second order kinetic indicated that the heavy metals cations were bound predominantly by complexation. In order to establish the effectiveness of the biosorbent in real wastewater sample, SHM was employed for cleaning-up of drain water emanating from atomic adsorption spectrophotometer. The SHM showed high removal efficiency towards multiple metal ions. The amounts of Fe, Pb, Cu and Cr ions were reduced by 97, 87, 81 and 80 %, respectively, while Ni and Zn amounts were reduced for 33 and 14 %. Used biosorbent SHM can be successfully regenerated with HCl (desorption > 95 %) and after regeneration biosorbent can be reused or it can be safely disposed.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment

Šoštarić

Petrović

Pastor

et al. 2018

Journal of Molecular Liquids

100

View full text Add to dashboard Cite

show abstract

“…According to current information, the cost of commercial adsorbents in the world market varies between~800 and 5000 US$/ton (depending on the quality/type of adsorbent) (Selvaraju and Bakar 2017). The optimised activation method proposed here requires short processing times and low temperatures/heat energy, potentially three times less energy than that required for conventional thermochemical activation at higher temperature (500-1000°C) (Pap et al 2017). As such, this approach indicates that this material could be economically feasible, demonstrating the potential for this CCM as a scaled-up commercial product.…”

Section: Modification and Optimisation Processmentioning

confidence: 99%

Synthesis optimisation and characterisation of chitosan-calcite adsorbent from fishery-food waste for phosphorus removal

Pap

Kirk

Sekulić

et al. 2020

Environ Sci Pollut Res

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Here, Box-Behnken design (BBD) approaches were utilised to optimise synthesis methodology for the chitosan-calcite rich adsorbent (CCM) made from fishery-food waste material (crab carapace), using low-temperature activation and potassium hydroxide (KOH). The effect of activation temperature, activation time and impregnation ratio was studied. The final adsorbent material was evaluated for its phosphorus (P) removal efficiency from liquid phase. Results showed that impregnation ratio was the most significant individual factor as this acted to increase surface deacetylation of the chitin (to chitosan) and increased the number of amine groups (-NH 2 ) in the chitosan chain. P removal efficiency approached 75.89% (at initial P concentration of 20 mg/L) under optimised experimental conditions, i.e. where the impregnation ratio for KOH:carapace (g/g) was 1:1, the activation temperature was 105°C and the activation time was 150 min. Predicted responses were in good agreement with the experimental data. Additionally, the pristine and CCM material were further analysed using scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX), Brunauer-Emmett-Teller technique (BET), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and thermal gravimetric analysis (TGA). Characterisation showed enhancements in surface chemistry (introducing positively charged amine groups), textural properties and thermal stability of the CCM.

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“…Adsorption is the most applied method for heavy metal removal. Among all the commonly used adsorbents (various zeolite, fly ash, clay, and zero-valent irons, activated carbon), activated carbon is considered as the best performed one (Da'na and Awad 2017; Karnib et al 2014;Pap et al 2017). However, the high cost of heavy metal removal by activated carbon has hindered its application, and thus, seeking on costeffective adsorbent is highly needed.…”

Section: Water Treatmentmentioning

confidence: 99%

The potential utilization of slag generated from iron- and steelmaking industries: a review

Zhang

Chen

Jiang

et al. 2019

Environ Geochem Health

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Along with iron and steel production, large amount of slag is generated. Proper management on the iron-and steelmaking slag is highly demanded due to the high cost of direct disposal of the slag to landfill, which is the most adopted management approach. In this article, the potential application of iron-and steelmaking slag has been reviewed, which included the slag utilization in construction as cement and sand, in water, soil, and gas treatment, as well as in value material recovery. In addition, the challenge and required effort to be made in iron-and steelmaking slag management have been discussed.

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Utilization of fruit processing industry waste as green activated carbon for the treatment of heavy metals and chlorophenols contaminated water

Cited by 94 publications

References 67 publications

Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment

Study of heavy metals biosorption on native and alkali-treated apricot shells and its application in wastewater treatment

Synthesis optimisation and characterisation of chitosan-calcite adsorbent from fishery-food waste for phosphorus removal

The potential utilization of slag generated from iron- and steelmaking industries: a review

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