Environmental impact associated with activated carbon preparation from olive-waste cake via life cycle assessment

Hjaila, Kefah; Baccar, Rim; Sarrà, Montserrat; Gasol, Carles M.; Blánquez, Paqui

doi:10.1016/j.jenvman.2013.08.061

Cited by 111 publications

(83 citation statements)

References 19 publications

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“…Currently, biomass agricultural waste materials such as rice husks [2], rice straw [3], waste tea [4], olive waste [5], coffee husks [6], barley husks [7], forest industries waste materials such as sawdust [8], fibers [9], switchgrass [10], bamboo culms [11], and agricultural-industries waste such as oil palm shell [12] etc. were used as raw materials for preparing AC, because these materials possess high carbon contents and are low in cost [13].…”

Section: Introductionmentioning

confidence: 99%

A low cost and highly efficient adsorbent (activated carbon) prepared from waste potato residue

Zhang

Luo

Liu

et al. 2015

Journal of the Taiwan Institute of Chemical Engineers

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Section: Introductionmentioning

confidence: 99%

A low cost and highly efficient adsorbent (activated carbon) prepared from waste potato residue

Zhang

Luo

Liu

et al. 2015

Journal of the Taiwan Institute of Chemical Engineers

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“…The production of 1 kg BMC and BWC resulted in emissions of 0.43 and 0.20 kg CO 2 eq., respectively, which was significantly lower than those reported for AC from olive waste cake (11.1 kg CO 2 eq. kg −1 ) (Hjaila et al 2013). GWP for ACs produced from conventional raw materials was 1.15 kg CO 2 eq.…”

Section: Global Warming Potentialmentioning

confidence: 99%

“…More studies investigating the technical and environmental aspects of using residual biomasses consisting of a high ash content would enable a wider range of biomasses to be utilised for AC production. Studies assessing the environmental impacts of producing AC utilising residual biomasses were either carried out on a laboratory or protype scale (Hjaila et al 2013, Kim et al 2019 or using literature data (Arena et al 2016). Applying data obtained from a commercial scale AC production unit at a WWTP for modelling the environmental impacts would result in a more accurate assessment.The aims of this study were to assess the enviromental impact and energy demand of (i) production of AC from a biomass mixture (BMC) and biowaste (BWC) and (ii) the usage of this AC as an additional treatment step for micropollutant removal at a WWTP in comparison to conventional activated carbon (CC).…”

Section: Gaps In Knowledgementioning

confidence: 99%

Sustainability assessment of activated carbon from residual biomass used for micropollutant removal at a full-scale wastewater treatment plant

Joseph

Kaetzl

Hensgen

et al. 2020

Environ. Res. Lett.

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Activated carbon (AC), used for removal of organic micropollutants in European wastewater treatment plants (WWTPs), is usually produced from non-renewable resources that need to be transported over long distances. Utilising local residual biomass as a raw material may be advantageous in terms of sustainability. This study investigated the environmental and energy balances of using biowaste and biomass from landscape management for micropollutant removal at a commercial scale WWTP. Both residual biomasses were processed using the integrated generation of solid fuel and biogas from biomass (IFBB) technique to obtain a press cake that was used as feedstock for AC production. The results showed a lower global warming potential (GWP) and cumulative energy demand in comparison to a fossil-based conventional AC Differences in GWP between residual and fossil ACs were enhanced when the end-of-life incineration step was considered, and residual AC had a lower social risk associated with its production. Energy efficiency of AC production was substantially increased by utilising waste heat generated in the pyrolysis process of biochar production and by using electricity generated in a combined heat and power plant using biogas from the methanation of IFBB press fluids. Converting residual biomass into activated carbon using IFBB and a state-of-the-art pyrolysis and activation unit along with energy recovery would improve WWTP sustainability and self-sufficiency in terms of the raw materials required.

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“…Techno‐economic analysis and LCA were performed on the activated carbon production and its utilization as an adsorbent material for toxic gases. There were several adsorption studies about TEA and LCA using bio‐waste activated carbon . The levelized cost considering the equipment operating cost and operation efficiency/performance was used to investigate the potential trade‐offs and overall AC production costs .…”

Section: Experimental Apparatus and Experimental Proceduresmentioning

confidence: 99%

Utilization of cocoa activated carbon for trimethylamine and hydrogen sulfide gas removals in a confined space and its techno‐economic analysis and life‐cycle analysis

Wang

Nam

2019

Env Prog and Sustain Energy

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In this study, a removal technique of porous activated carbon filter was developed using copper impregnated on commercially available cocoa activated carbon (Cu/AC) for the removal of toxic pollutant gases (trimethylamine [TMA] and hydrogen sulfide [H2S]). Cu/AC (filter) was characterized with Scanning electron microscope (SEM), Energy dispersive X‐ray spectroscopy (EDS), Thermogravimetric analysis (TGA)/Differential thermal analysis, proximate analysis, Carbon, hydrogen, nitrogen, sulfur (CHNS)/O, and Brunauer–Emmett–Teller, the results indicated the Cu/AC possesses good physical and chemical characteristics and is suitable for adsorption of air pollutants. The Cu/AC filter exhibited excellent adsorption capacity for the removal of TMA (qe = 654.8 mg/g) and H2S (qe = 220.37 mg/g). The isotherm and kinetic models were applied to analyze the adsorption properties and adsorption mechanism. Langmuir isotherm showed best fit for the adsorption of TMA and H2S, whereas the pseudo‐first‐ and second‐order kinetic models best fitted in describing the adsorption of H2S and TMA, respectively. Also, the adsorption process for the removal of TMA and H2S was controlled by the intraparticle diffusion model. The H2S‐adsorbed Cu/AC filter can be regenerated but not lasting too many cycles. Techno‐economic analysis and life‐cycle analysis (LCA) were performed at a plant scale. Production costs were ¢1.37 for cocoa AC filter and ¢10.13 for activated rice husk (ARH) filter. Also, the LCA result for during the filter production was estimated to be 2.52 kg CO2‐eq for cocoa AC filter and 4.47 kg CO2‐eq for ARH filter. This study proves the competitiveness compared to ARH filter of the previous study in the adsorption performance and the filter production cost.

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Environmental impact associated with activated carbon preparation from olive-waste cake via life cycle assessment

Cited by 111 publications

References 19 publications

A low cost and highly efficient adsorbent (activated carbon) prepared from waste potato residue

A low cost and highly efficient adsorbent (activated carbon) prepared from waste potato residue

Sustainability assessment of activated carbon from residual biomass used for micropollutant removal at a full-scale wastewater treatment plant

Utilization of cocoa activated carbon for trimethylamine and hydrogen sulfide gas removals in a confined space and its techno‐economic analysis and life‐cycle analysis

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