Production of Mesoporous Activated Carbon from Tea Fruit Peel Residues and Its Evaluation of Methylene Blue Removal from Aqueous Solutions

Gao, Junjie; Kong, Dedong; Wang, Yuefei; Wu, Jing; Sun, Shuzheng; Xu, Ping

doi:10.15376/biores.8.2.2145-2160

Cited by 30 publications

(17 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The suitability of the PSO kinetic model indicated that the step that controls the adsorption rate was mainly chemical sorption. The PSO kinetic model also indicated that the colour, TSS and COD adsorption rates were affected more by the number of available adsorption sites on the CSAC surface than the effect of POME solution concentration [21]. The adsorption rate was governed by a second-order rate law.…”

Section: Adsorption Kinetics Studymentioning

confidence: 95%

Adsorption of colour, TSS and COD from palm oil mill effluent (POME) using acid-washed coconut shell activated carbon: Kinetic and mechanism studies

2016

View full text Add to dashboard Cite

Abstract. The disposal of palm oil mill effluent (POME) without proper treatment before being discharged into natural water sources has become undesirable because of high concentration of suspended solid (SS), oil and grease (O&G), chemical oxygen demand (COD) and biological oxygen demand (BOD). This study investigated the feasibility of removing colour, total suspended solid (TSS) and COD using acid-washed coconut shell based activated carbon (CSAC) through the evaluation of the adsorption uptake as well as the adsorption kinetics and mechanism. The percentage removal of colour, TSS and COD from POME onto CSAC were 61%, 39%, 66%, respectively achieved within 48 hours of contact time. The kinetic models studied were pseudo-first-order (PFO), pseudo-secondorder (PSO), and Elovich models. The intra-particle diffusion (IPD) model was studied to interpret the adsorption diffusion mechanism. The adsorption of colour, TSS and COD onto CSAC were best interpreted by the PSO model, and well fitted by the Elovich model. The IPD and Boyd plots indicated that IPD and film diffusion controlled the adsorption of colour, TSS and COD onto the CSAC.

show abstract

Section: Adsorption Kinetics Studymentioning

confidence: 95%

Adsorption of colour, TSS and COD from palm oil mill effluent (POME) using acid-washed coconut shell activated carbon: Kinetic and mechanism studies

2016

View full text Add to dashboard Cite

show abstract

“…The findings showed that the step controlling adsorption rate of CBA-HCl was chemical sorption and POME colour adsorption rate was affected by the number of available adsorption sites on the surface of CBA-HCl rather than POME solution concentration. 41,42 Table 5 shows the respective q e , K 1 of first order adsorption, and K 2 of pseudo second order adsorption.…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Treated Coal Bottom Ash for Palm Oil Mill Effluent (POME) Decolourisation

Saleh¹,

Karim²,

Loh³

2019

JPS

View full text Add to dashboard Cite

The coal bottom ash (CBA) sourced from thermal power plant was chemically treated using hydrochloric acid (HCl), namely CBA-HCl, and used as an adsorbent for palm oil mill effluent (POME) decolourisation. The treated CBA-HCl was characterised for surface property via Brunauer-Emmett-Teller (BET), surface chemistry via Fourier transform infrared (FTIR) and surface morphology via scanning electron microscopy (SEM). Its effectiveness for adsorption of POME colour was investigated via batch experiments as a function of pH, initial POME concentration, adsorbent dosage and contact time. The adsorption increased with increasing contact time until an equilibrium state was achieved within 18 h to 24 h. The maximum POME colour removal, 81.15% was achieved at pH 6 utilising 14% (w/v) adsorbent dosage for 24 h. The colour adsorption isotherm and kinetics of the CBA-HCl was well-fitted with Freundlich and pseudo-second order models with correlation coefficient, R 2 = 0.9991 and R 2 = 0.9996, respectively. Based on the results, CBA can be a potential adsorbent in removing POME colour before being discharged into a watercourse.

show abstract

“…Researchers have developed alternatives for biomass from agricultural waste such as flax shives (MARSHALL et al, 2007), rice stalk (AI et al, 2013), rice straw (HU; HSIEH, 2014), orange peel (KÖSEOĞLU; AKMIL-BAŞAR, 2015), cotton stalk (NAHIL; WILLIAMS, 2012), cocoa shell (AHMAD et al, 2013), grape stalk (DEIANA et al, 2009), apple peel (HESAS et al, 2013), and tea fruit peel (GAO et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Morphological and Elementary Evaluation of Wooden Carbonaceous Materials From Activated Carbon Industry

Banczek

Brugnera

Christofóro

et al. 2019

NAT

View full text Add to dashboard Cite

AVALIAÇÃO MORFOLÓGICA E ELEMENTAR DE MATERIAIS CARBONÁCEOS DE MADEIRA DA INDÚSTRIA DE CARBONO ATIVADA A preocupação mundial na redução dos gases de efeito estufa para a atmosfera, combinada com leis ambientais mais rigorosas, tem levado a um aumento dos estudos sobre a energia renovável. Esta pesquisa teve como objetivo caracterizar lascas de madeira e carvão ativado por microscopia eletrônica de varredura (MEV) e espectroscopia de energia dispersiva (EDS). Os cavacos são oriundos de uma floresta de Pinus elliottii voltada para fins energéticos e foram queimados em uma fornalha de uma caldeira de geração de vapor. Esse vapor gerado pela caldeira em fornalhas apropriadas é utilizado na ativação de carvão vegetal por pequenos produtores regionais. MEV indicou um aumento na porosidade do carvão vegetal com o processo de ativação, e a análise EDS indicou que tanto os cavacos quanto os carvões, com e sem ativação, não apresentaram contaminantes, como os metais pesados. Este estudo revelou uma baixa toxicidade dos materiais lignocelulósicos à base de Pinus elliottii. A queima de cavacos de madeira na caldeira e o processo de ativação de carvão vegetal não apresentaram riscos ambientais.Palavras-chave: energia florestal, carbonização, carvão ativado, metais, porosidade. ABSTRACT: The worldwide concern of reducing greenhouse gases into the atmosphere combined with more stringent environmental laws has led to an increase in studies of renewable energy. This research aimed to characterize wood chips and activated charcoal by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The chips came from an energy forest of Pinus elliottii and were burned in the furnace of a boiler for steam generation. This steam generated by the boiler in appropriate furnaces is used in the activation of wood charcoal from small regional producers. SEM showed an increase in the porosity of the charcoal with the activation process, and EDS analysis indicated both chips and charcoals, with and without activation, have no contaminants, such as heavy metals. This study revealed a low toxicity of lignocellulosic materials based on Pinus elliottii. The burning of wooden chips in the boiler as well as the activation process of wood charcoal did not present apparent environmental risks.Keywords: forestry energy, carbonization, activated carbon, metals, porosity.

show abstract

Production of Mesoporous Activated Carbon from Tea Fruit Peel Residues and Its Evaluation of Methylene Blue Removal from Aqueous Solutions

Cited by 30 publications

References 32 publications

Adsorption of colour, TSS and COD from palm oil mill effluent (POME) using acid-washed coconut shell activated carbon: Kinetic and mechanism studies

Adsorption of colour, TSS and COD from palm oil mill effluent (POME) using acid-washed coconut shell activated carbon: Kinetic and mechanism studies

Treated Coal Bottom Ash for Palm Oil Mill Effluent (POME) Decolourisation

Morphological and Elementary Evaluation of Wooden Carbonaceous Materials From Activated Carbon Industry

Contact Info

Product

Resources

About