Flocculant in wastewater affects dynamics of inorganic N and accelerates removal of phenanthrene and anthracene in soil

Fernández-Luqueño, F.; Thalasso, F.; Luna‐Guido, Marco; Ceballos-Ramírez, J.M.; Ordoñez-Ruiz, I.M.; Dendooven, Luc

doi:10.1016/j.jenvman.2009.03.010

Cited by 15 publications

(9 citation statements)

References 37 publications

(38 reference statements)

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“…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: Discussioncontrasting

confidence: 49%

“…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.…”

Section: Discussionmentioning

confidence: 99%

“…An HP-5 column from HewlettPackard (USA) with length of 15 m, inner diameter 0.53 mm, and film thickness 1.5 µm was used to separate the PAHs with He carrier gas flowing at a rate of 7 ml min -1 and maintained at 280ºC for 10 min. The temperature of the injector was 280ºC and that of the detector 300ºC [6].…”

Section: Chemical Analysismentioning

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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Section: Discussioncontrasting

confidence: 49%

Section: Discussionmentioning

confidence: 99%

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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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“…It is well known that autochthonous microorganisms can remove PAHs from soil [31] -even in the presence of salt [32]. In a previous experiment, 99% PHEN and 85% ANTHR were removed from an agricultural soil [23]. The removal of PHEN and ANTHR was much lower from soil with EC 30 dS m -1 (i.e., 11% and 5%, respectively), or with EC 60 dS m -1 (i.e., 15% and 12%, respectively).…”

Section: Discussionmentioning

confidence: 94%

“…Wastewater sludge contains large amounts of easily decomposable organic material that is rapidly mineralized when added to soil [9,23]. For instance, Zhang et al [24] reported that approximately 40% of the organic material in sludge mineralized within the first 50 days.…”

Section: Discussionmentioning

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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Enhancing Decontamination of PAHs-Polluted Soils: Role of Organic and Mineral Amendments

Fernández-Luqueño

López-Valdez

Pérez-Morales

et al. 2017

Enhancing Cleanup of Environmental Pollutants

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Flocculant in wastewater affects dynamics of inorganic N and accelerates removal of phenanthrene and anthracene in soil

Cited by 15 publications

References 37 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

Enhancing Decontamination of PAHs-Polluted Soils: Role of Organic and Mineral Amendments

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