Bioremediation of polycyclic aromatic hydrocarbon-contaminated saline–alkaline soils of the former Lake Texcoco

Betancur‐Galvis, Liliana; Álvarez-Bernal, Dioselina; Ramos-Valdivia, Ana C.; Dendooven, Luc

doi:10.1016/j.chemosphere.2005.07.026

Cited by 69 publications

(45 citation statements)

References 59 publications

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“…Fernández-Luqueño et al [6] reported that in soil of Texcoco with EC 30 dS m -1 or 80 dS m -1 , removal of Anthra was not affected by the application of wastewater sludge. However, Betancur-Galvis et al [15] found that the removal of Phen in wastewater sludge amended soil with EC 12 dS m -1 , and pH 10 was 54% compared to only 25% in the unamended soil after seven days and 71% and 29%, respectively, after 112 days. In the experiment reported here the wastewater sludge had less effect on the removal of Phen and Anthra than as reported by Betancur-Galvis et al [15], but more than found by Fernández-Luqueño et al [6].…”

Section: Discussionmentioning

confidence: 99%

“…However, Betancur-Galvis et al [15] found that the removal of Phen in wastewater sludge amended soil with EC 12 dS m -1 , and pH 10 was 54% compared to only 25% in the unamended soil after seven days and 71% and 29%, respectively, after 112 days. In the experiment reported here the wastewater sludge had less effect on the removal of Phen and Anthra than as reported by Betancur-Galvis et al [15], but more than found by Fernández-Luqueño et al [6]. This would indicate that the application of the wastewater sludge from the same treatment plant did not always have the same effect on the removal of Anthra and Phen from soil.…”

Section: Discussionmentioning

confidence: 99%

“…First, the removal of PAHs is normally most accentuated in the first days after spiking the soil and further decreases are normally small. Betancur-Galvis et al [15] found that 33% of added Phen was removed from an agricultural soil in seven days and an additional 15% in the next 105 days. The effect was even more outspoken in Texcoco soil with EC 12 dS m -1 and pH 10, as 25% of Phen was removed within seven days and only 4% in the next 105 days.…”

Section: Discussionmentioning

confidence: 99%

“…Second, the percentage of removal of Anthra and Phen was similar in this experiment, although the removal of Phen is normally higher than that of Anthra. Betancur-Galvis et al [15] stated that only 16% of added Anthra was removed from an agricultural soil, and 33% of Phen in seven days. The slower degradation of Anthra can be attributed to its low solubility in aqueous systems -(mg N kg -1 dry soil) from unamended soil and soil spiked with PAHs, and amended with wastewater sludge at 0, 1.5, 4.5, 9, or 18 g dry sludge kg-1.…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Do Application Rates of Wastewater Sewage Sludge Affect the Removal of PAHs from Alkaline Saline Soil?

Fernández-Luqueño

Mendoza-Cristino

Dendooven

2016

Pol. J. Environ. Stud.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Do Application Rates of Wastewater Sewage Sludge Affect the Removal of PAHs from Alkaline Saline Soil?

Fernández-Luqueño

Mendoza-Cristino

Dendooven

2016

Pol. J. Environ. Stud.

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“…In a previous experiment that used soil from Texcoco (pH 10.0 and electrolytic conductivity (EC) 12 dS m -1 ), the application of wastewater sludge to soil accelerated the removal of phenanthrene (PHEN) and anthracene (ANTHR) and nearly halved their final concentrations after 112 days [8]. However, soils with pH 9.3 and EC 7.3 dS m -1 for the application of wastewater sludge had no significant effect on the removal of ANTHR after 112 days [9].…”

Section: Introductionmentioning

confidence: 99%

Dissipation of Phenanthrene and Anthracene from Soil with Increasing Salt Content Amended with Wastewater Sludge

Fernández-Luqueño

Cabrera-Lazaro

Corlay-Chee

et al. 2017

Pol. J. Environ. Stud.

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The removal of PAHs was stimulated by wastewater sludge in an alkaline saline soil of the former Lake Texcoco, but not always to the same extent. We investigated how a varying electrolytic conductivity (EC) affected the removal of phenanthrene (PHEN) and anthracene (ANTHR) from wastewater sludge-amended soils. Soil with EC 6, 30, 80, and 146 dS m -1 was contaminated with PHEN and ANTHR and amended with or without wastewater sludge, while emissions of CO 2 and concentrations of ammonium, nitrite, and nitrate were monitored. A decrement on the concentrations of PHEN and ANTHR was observed and was faster in soil with EC 6 dS m -1 than in soil with EC 30 dS m -1 and 80 dS m -1, and was slower than in soil with EC 146 dS m -1 . Adding wastewater sludge to soil reduced the concentration of PHEN and ANTHR in soil after 56 days. Spiking soil with PAHs or amending it with wastewater sludge increased the CO 2 emission rate, but decreased at higher EC. The concentration of NO 3 -decreased when soil was spiked with PAHs and amended with sludge, except in soil with EC 146 dS m -1. It was found that the removal of PAHs was not inhibited by salt content and a principal component analysis indicated that none of the measured soil characteristics, i.e., pH, EC, particle size distribution, water-holding capacity, or organic C content predicted the removal of ANTHR or PHEN from contaminated soil. The application of wastewater sludge increased the dissipation of PHEN and ANTHR after 56 days.

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Effect of Co‐culture and Nutrients Supplementation on Bioremediation of Crude Petroleum Sludge

Devi

Reddy

Juwarkar

et al. 2011

CLEAN Soil Air Water

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Ex-situ bioremediation of real-field crude petroleum sludge was evaluated to elucidate the role of co-culture (bioaugmentation) and external nutrients supplementation (biostimulation) under anaerobic microenvironment. Maximum removal of total petroleum hydrocarbons (TPH) was observed by integrating biostimulation with bioaugmentation (R5, 44.01%) followed by bioaugmentation alone (R4, 34.47%), co-substrate supplemented operations [R6, 23.36%; R3, 16.5%; R2, 9.88%] and control (R1, 4.36%). Aromatics fraction showed higher degradation in all the conditions studied. Fate of six selected polycyclic aromatic hydrocarbons (PAHs) was evaluated during bioremediation. Among these, four ring PAHs compounds showed good degradation by integration of biostimulation with bioaugmentation (R5) while bioaugmentation alone (R4) documented good degradation of three ring PAHs. Lower ring PAHs compounds showed good degradation with the application of biostimulation (R6). Fluorescent in situ hybridization (FISH) detected the presence of known PAHs degrading microorganisms viz., Bacillus, Pseudomonas, Acido bacteria, Sulphur reducing bacteria Firmicutes, etc. Application of biostimulation and bioaugmentation strategies alone or in combinations documented noticeable influence on the degradation of petroleum sludge.

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Bioremediation of polycyclic aromatic hydrocarbon-contaminated saline–alkaline soils of the former Lake Texcoco

Cited by 69 publications

References 59 publications

Do Application Rates of Wastewater Sewage Sludge Affect the Removal of PAHs from Alkaline Saline Soil?

Do Application Rates of Wastewater Sewage Sludge Affect the Removal of PAHs from Alkaline Saline Soil?

Dissipation of Phenanthrene and Anthracene from Soil with Increasing Salt Content Amended with Wastewater Sludge

Effect of Co‐culture and Nutrients Supplementation on Bioremediation of Crude Petroleum Sludge

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