Multivariate Exploratory Analysis of Metals and Phosphorus Concentrations of Leachates Collected Monthly from a Municipal Sanitary Landfill

Oliveira, Djalma Menezes de; Santos, Márcio José Silva dos; Filho, Hélio R. Sousa; Cardoso, Luiz Augusto Martins; Souza, Cheilane T. de; Bezerra, Marcos Almeida; Souza, Anderson Santos

doi:10.1007/s00128-015-1559-8

Cited by 4 publications

(1 citation statement)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Traditional disposal of MSW in landfills has induced severe deterioration of quality of air, underground water, public health, etc. [2]. Therefore, municipal solid waste incineration (MSWI) is considered the most effective alternative to the landfill disposal of MSW.…”

Section: Introductionmentioning

confidence: 99%

Solidification and Biotoxicity Assessment of Thermally Treated Municipal Solid Waste Incineration (MSWI) Fly Ash

Gong

Deng

Yang

et al. 2017

IJERPH

View full text Add to dashboard Cite

In the present work, thermal treatment was used to stabilize municipal solid waste incineration (MSWI) fly ash, which was considered hazardous waste. Toxicity characteristic leaching procedure (TCLP) results indicated that, after the thermal process, the leaching concentrations of Pb, Cu, and Zn decreased from 8.08 to 0.16 mg/L, 0.12 to 0.017 mg/L and 0.39 to 0.1 mg/L, respectively, which well met the limits in GB5085.3-2007 and GB16689-2008. Thermal treatment showed a negative effect on the leachability of Cr with concentrations increasing from 0.1 to 1.28 mg/L; nevertheless, it was still under the limitations. XRD analysis suggested that, after thermal treatments, CaO was newly generated. CaO was a main contribution to higher Cr leaching concentrations owing to the formation of Cr (VI)—compounds such as CaCrO4. SEM/EDS tests revealed that particle adhesion, agglomeration, and grain growth happened during the thermal process and thus diminished the leachability of Pb, Cu, and Zn, but these processes had no significant influence on the leaching of Cr. A microbial assay demonstrated that all thermally treated samples yet possessed strong bactericidal activity according to optical density (OD) test results. Among all samples, the OD value of raw fly ash (RFA) was lowest followed by FA700-10, FA900-10, and FA1100-10 in an increasing order, which indicated that the sequence of the biotoxicity for these samples was RFA > FA700-10 > FA900-10 > FA1100-10. This preliminary study indicated that, apart from TCLP criteria, the biotoxicity assessment was indispensable for evaluating the effect of thermal treatment for MSWI fly ash.

show abstract

Section: Introductionmentioning

confidence: 99%

Solidification and Biotoxicity Assessment of Thermally Treated Municipal Solid Waste Incineration (MSWI) Fly Ash

Gong

Deng

Yang

et al. 2017

IJERPH

View full text Add to dashboard Cite

show abstract

Environmental monitoring of water resources around a municipal landfill of the Rio Grande do Sul state, Brazil

Engelmann

Santos

Moser

et al. 2017

Environ Sci Pollut Res

View full text Add to dashboard Cite

In Brazil, landfills are commonly used as a method for the final disposal of waste that is compliant with the legislation. This technique, however, presents a risk to surface water and groundwater resources, owing to the leakage of metals, anions, and organic compounds. The geochemical monitoring of water resources is therefore extremely important, since the leachate can compromise the quality and use of surface water and groundwater close to landfills. In this paper, the results of analyses of metals, anions, ammonia, and physicochemical parameters were used to identify possible contamination of surface water and groundwater in a landfill area. A statistical multivariate approach was used. The values found for alkali metals, nitrate, and chloride indicate contamination in the regional groundwater and, moreover, surface waters also show variation when compared to the other background points, mainly for ammonia. Thus, the results of this study evidence the landfill leachate influence on the quality of groundwater and surface water in the study area.

show abstract

An assessment of landfill leachate influences on water quality in the Boi Piguá river basin (Paraná, Brazil) using the TXRF technique

et al. 2020

View full text Add to dashboard Cite

Multivariate Exploratory Analysis of Metals and Phosphorus Concentrations of Leachates Collected Monthly from a Municipal Sanitary Landfill

Cited by 4 publications

References 13 publications

Solidification and Biotoxicity Assessment of Thermally Treated Municipal Solid Waste Incineration (MSWI) Fly Ash

Solidification and Biotoxicity Assessment of Thermally Treated Municipal Solid Waste Incineration (MSWI) Fly Ash

Environmental monitoring of water resources around a municipal landfill of the Rio Grande do Sul state, Brazil

An assessment of landfill leachate influences on water quality in the Boi Piguá river basin (Paraná, Brazil) using the TXRF technique

Contact Info

Product

Resources

About