Aged Refuse Characterization as Resource for Wastewater Treatment and Landfill Remediation

Chinenyenwa, Anijiofor Sandra; Nik, Norsyhariati; Idrus, Syazwani; Amimul, Ahsan

doi:10.4172/2252-5211.1000269

Cited by 3 publications

(5 citation statements)

References 21 publications

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“…It may also lead to the formation of oxides in the presence of oxygen. Henceforth, the spectrum should be taken prior to the adsorption process [13]. Figures 3(A) and 3(B) show the SEM analysis of the chemically treated aged refuse (adsorbent) and the raw material, respectively, which is utilized to validate the structural characteristics of the surface.…”

Section: Resultsmentioning

confidence: 99%

“…Aged refuse refers to the waste material dumped in landfills for more than a decade and becomes stabilized and aged [12]. Aged refuse remains an unused resource that gets accumulated in the landfill and is difficult to manage [13]. Some of the aged refuse's properties are inclusive of volumetric weight, porosity, high organic content, and good adsorption capability.…”

Section: Introductionmentioning

confidence: 99%

“…Further, the researchers also focused on understanding the characteristics of surface area in aged refuse for wastewater treatment. The composition of the aged refuse is inclusive of 4.53% organic content with a particle size of 0.2 to 1 mm, while the organic content sized below 0.2 mm is 5.69% [13]. To better understand the significance of these naturally occurring complex minerals, the characteristics of the hematite loaded on kaolin clay complexes were examined earlier (Shuai [16]).…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Adsorptive Removal of Chromium (VI) from Aqueous Solution on Using Aged Refuse: Resource Recovery and Environmental Applications

Manimekalai

Sivanesan

Kumar

2023

Adsorption Science & Technology

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“Aged refuse” corresponds to municipal solid waste material dumped in land, for several years. This solid waste material is chosen as an adsorbent for the current study since it is available abundantly in the state of Tamil Nadu, India, and has not been used for any other applications. The current study was conducted to get rid of the element chromium (VI) from wastewater by using the adsorption process. The aged refuse was analytically tested through various processes such as BET, TGA, XRD, SEM, and FTIR to determine the surface morphology, functional groups, thermal stability, nature of the crystalline, and surface area. The researchers conducted the batch adsorption study to validate the influence exerted by different sorts of adsorption parameters like contact time (10-100 min), initial concentration of the pollutant (50 mg·L-1 to 250 mg·L-1), pH (1-7), and the dosage of the adsorbent (0.5 g·L-1-3.0 g·L-1). In the current study, the researchers achieved the maximum adsorption capacity of 195.54 mg·g-1. From the kinetic results, it can be understood that the pseudo-first-order model was the most suitable kinetic model. Further, the study outcomes confirm that the Langmuir isotherm model is the best fit by isotherm studies which indicate the monolayer adsorption process. This study indicated that the aged refuse can be potentially used in removing Cr (VI) from water environment under standard optimized conditions.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enhanced Adsorptive Removal of Chromium (VI) from Aqueous Solution on Using Aged Refuse: Resource Recovery and Environmental Applications

Manimekalai

Sivanesan

Kumar

2023

Adsorption Science & Technology

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“…Previous studies have shown that after approximately 10 years of burial, the degradable substances in a landfill are fully broken down, and the natural gas or leachate has reached a low level [4,5]. The aged refuse at this stabilized or mature stage has the potential to be utilized in many ways; for instance, it has certain characteristics of fertile soil and can be used for the adsorption treatment of pollutants [6,7]. In recent years, there have been many reports on the use of aged refuse in landfill leachate, water pollution, and biological reaction vessels [6,[8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…The aged refuse at this stabilized or mature stage has the potential to be utilized in many ways; for instance, it has certain characteristics of fertile soil and can be used for the adsorption treatment of pollutants [6,7]. In recent years, there have been many reports on the use of aged refuse in landfill leachate, water pollution, and biological reaction vessels [6,[8][9][10]. For instance, reports have shown that it can be used to promote anaerobic catabolism in kitchen waste, as well as the harmless treatment of soil contaminated by total petroleum hydrocarbons [9,10].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Microbial Communities in Aged Refuse Based on 16S Sequencing

Hou

Yuan

et al. 2021

Sustainability

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Aged refuse is widely considered to have certain soil fertility. 16S rRNA amplicon sequencing is used to investigate the microbial community of aged refuse. The aged refuse is found to contain higher soil fertility elements (total nitrogen, total phosphorus, total potassium, etc.) and higher concentrations of heavy metals (Pb, Cd, Zn, and Hg). Taxonomy based on operational taxonomic units (OTUs) shows that Actinobacteria, Proteobacteria, Chloroflexi, Acidobacteria, and Gemmatimonadetes are the main bacterial phyla in the two soils and there is a palpable difference in the microbial community composition between the two groups of samples. The genera Paramaledivibacter, Limnochorda, Marinobacter, Pseudaminobacter, Kocuria, Bdellovibrio, Halomonas, Gillisia, and Membranicola are enriched in the aged refuse. Functional predictive analysis shows that both the control soil and aged refuse have a high abundance of “carbohydrate metabolism” and “amino acid metabolism”, and show differences in the abundance of several metabolism pathways, such as “xenobiotics biodegradation and metabolism” and “lipid metabolism”. Aged refuse and undisturbed soil show significant differences in alpha diversity and microbial community composition. Multiple environmental factors (Hg, TN, Cr, Cd, etc.) significantly impact microorganisms’ abundance (Marinobacter, Halomonas, Blastococcus, etc.). Our study provides valuable knowledge for the ecological restoration of closed landfills.

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Aged Refuse Recycling to Treat Wastewater from Coffee Processing

Rodiles-Cruz,

Ulloa-Gutiérrez,

Gutiérrez-Hernández

et al. 2024

Recycling

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Over the last two decades, the use of bioreactors filled with aged refuse extracted from closed areas of landfills has proven to be a viable alternative for the treatment of different types of wastewater. This study presents the results obtained during the evaluation of aged refuse used as filling material for a downflow bioreactor during the removal of the organic load present in wastewater generated in the wet processing of coffee. The tests were carried out over a period of 120 days, with 15 days to start up and stabilize the bioreactor and 105 days to perform treatability tests. The aged refuse, once extracted, was dried and sifted to a particle size of less than 50 mm. The bioreactor used had a cylindrical geometry (Ø = 0.20 m, and h = 3.40 m), and it was fed with hydraulic loads of 50, 100, and 150 L m−3 d−1. The analysis of the data obtained shows that the system studied achieves the removal of 98.3% of the initial organic load when fed with 150 L m−3 d−1. This showcases recycling aged refuse as a technically viable alternative to treat the wastewater generated during coffee processing. Also, the evaluated system has the advantage of needing a short period of time to achieve its stabilization, which turns out to be of great value, especially in its possible use in the treatment of residual water generated in the harvest of agricultural products where the period of harvest is very short.

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Aged Refuse Characterization as Resource for Wastewater Treatment and Landfill Remediation

Cited by 3 publications

References 21 publications

Enhanced Adsorptive Removal of Chromium (VI) from Aqueous Solution on Using Aged Refuse: Resource Recovery and Environmental Applications

Enhanced Adsorptive Removal of Chromium (VI) from Aqueous Solution on Using Aged Refuse: Resource Recovery and Environmental Applications

Analysis of Microbial Communities in Aged Refuse Based on 16S Sequencing

Aged Refuse Recycling to Treat Wastewater from Coffee Processing

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