Waste water purification using new porous ceramics prepared by recycling waste glass and bamboo charcoal

Nishida, Tetsuaki; Morimoto, Akane; Yamamoto, Yoshito; Kubuki, Shiro

doi:10.1007/s13201-017-0561-1

Cited by 6 publications

(2 citation statements)

References 4 publications

(6 reference statements)

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“…Nishida et al reported on the fabrication of porous glass ceramic by sintering waste soda lime silicate and charcoal for water purification [ 24 ]. The porous glass ceramic produced from their study was successful in removing water turbidity and the pores maintained suitable environments for microbial proliferation.…”

Section: Introductionmentioning

confidence: 99%

Upcycling Glass Waste into Porous Microspheres for Wastewater Treatment Applications: Efficacy of Dye Removal

et al. 2022

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Each year about 7.6 million tons of waste glasses are landfilled without recycling, reclaiming or upcycling. Herein we have developed a solvent free upcycling method for recycled glass waste (RG) by remanufacturing it into porous recycled glass microspheres (PRGMs) with a view to explore removal of organic pollutants such as organic dyes. PRGMs were prepared via flame spheroidisation process and characterised using Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) and Mercury Intrusion Porosimetry (MIP) analysis. PRGMs exhibited 69% porosity with overall pore volume and pore area of 0.84 cm3/g and 8.6 cm2/g, respectively (from MIP) and a surface area of 8 m2/g. Acid red 88 (AR88) and Methylene blue (MB) were explored as a model source of pollutants. Results showed that removal of AR88 and MB by PRGMs was influenced by pH of the dye solution, PRGMs doses, and dye concentrations. From the batch process experiments, adsorption and coagulation processes were observed for AR88 dye whilst MB dye removal was attributed only to adsorption process. The maximum monolayer adsorption capacity (qe) recorded for AR88, and MB were 78 mg/g and 20 mg/g, respectively. XPS and FTIR studies further confirmed that the adsorption process was due to electrostatic interaction and hydrogen bond formation. Furthermore, dye removal capacity of the PRGMs was also investigated for column adsorption process experiments. Based on the Thomas model, the calculated adsorption capacities at flow rates of 2.2 mL/min and 0.5 mL/min were 250 mg/g and 231 mg/g, respectively which were much higher than the batch scale Langmuir monolayer adsorption capacity (qe) values. It is suggested that a synergistic effect of adsorption/coagulation followed by filtration processes was responsible for the higher adsorption capacities observed from the column adsorption studies. This study also demonstrated that PRGMs produced from recycled glass waste could directly be applied to the next cyclic experiment with similar dye removal capability. Thus, highlighting the circular economy scope of using waste inorganic materials for alternate applications such as pre-screening materials in wastewater treatment applications.

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Section: Introductionmentioning

confidence: 99%

Upcycling Glass Waste into Porous Microspheres for Wastewater Treatment Applications: Efficacy of Dye Removal

et al. 2022

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“…As a result, the most appropriate sintering temperature was determined to be 800°C. Related porous ceramics was prepared by recycling the waste glass bottle with bamboo charcoal by sintering a powder mixture with a mass ratio of 80:20 at 800°C for 60 min (Nishida et al 2017a). It is noted that waste glass bottle, i.e., soda-lime silicate glass which was free from heat-resistant Al 2 O 3 , was the main component in these porous ceramics when recycled with wood charcoal or bamboo charcoal.…”

Section: Introductionmentioning

confidence: 99%

Water purification using porous ceramics prepared by recycling volcanic ash and waste glass

et al. 2017

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Water purification was examined using porous ceramics prepared by sintering a powder mixture of volcanic ash, waste glass and a small amount of wood charcoal. The porous ceramics had cross-linked 3D-channels of which the diameter ranged from several nm to several lm. Three kilograms of porous ceramics placed in 90 L of circulating artificial seawater, in which several tropical fishes were actually living under aeration, caused a decrease in COD from 23.8 to 13.1 mg L -1 in a week. The number of coliform bacteria was almost constant in a range of 52-65 mL -1 despite that a lot of excrements were discharged frequently. The number of the coliform bacteria in the seawater examined ''without the tropical fishes'' decreased from 900 to 1 mL -1 in 2 weeks, and COD decreased from 37.9 to 7.9 mg L -1 . It proved that several aerobic bacteria proliferating in the macropores inside the porous ceramics could effectively decompose several organic materials. Graphical abstractChange of COD and increased transparency of the artificial sea water after the purification with porous ceramics and aerobic bacteria 0 day 7 days later 14 days later

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Advancing glass recycling and environmental applications with porous glass: a mini-review

Kim,

Baek,

Jang

2024

J Mater Cycles Waste Manag

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Waste water purification using new porous ceramics prepared by recycling waste glass and bamboo charcoal

Cited by 6 publications

References 4 publications

Upcycling Glass Waste into Porous Microspheres for Wastewater Treatment Applications: Efficacy of Dye Removal

Upcycling Glass Waste into Porous Microspheres for Wastewater Treatment Applications: Efficacy of Dye Removal

Water purification using porous ceramics prepared by recycling volcanic ash and waste glass

Advancing glass recycling and environmental applications with porous glass: a mini-review

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