Treating landfill leachate using passive aeration trickling filters; effects of leachate characteristics and temperature on rates and process dynamics

Matthews, Richard; Winson, Michael K.; Scullion, John

doi:10.1016/j.scitotenv.2009.01.034

Cited by 22 publications

(30 citation statements)

References 28 publications

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“…Determination of the capability of NO 3 − uptake by Eichhornia crassipes sp. during leachate treatment was conducted in an aerobic reactor (glass container, 10 L).…”

Section: Methodsmentioning

confidence: 99%

“…It can cause serious issues when NO 3 − contamination has caused severe problem to surface water and ground water due to point sources and nonpoint sources of nitrogen leaching usually from landfill activities [1,2]. Previous studies revealed that high concentration of inorganic nitrogen compounds such as NO 3 − and numerous organic-N compounds present in leachate [3][4][5]. Indeed, leachate generated from landfills can cause considerable contamination that can be transmitted from environment into soils, surface water and groundwater [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…However, biological nitrogen removal in landfill leachate is a critical environmental problem due to the formation of ammonium (NH 4 + ). NH 4 + may inhibit the degradation process and produce bad smell and organic materials such as volatile fatty acids, phenolics and humic acids which can inhibit degradation of NO 3 − [5]. Since the ammonium-nitrogen strength is high, it could pose microbial inhibition problem [10].…”

Section: Introductionmentioning

confidence: 99%

“…Hence, Eichhornia crassipes sp. is the example of fast growing perennial aquatic plant which is widely distributed throughout the world that can be used to treat NO 3 − contaminants [18][19][20]. Evidences from the previous studies show that there are lot of advantages of applying plant based remediation in treating contaminated sites where it provides low cost treatment methods which usually carried out at the landfill site and it is an environmentally friendly treatment [21].…”

Section: Introductionmentioning

confidence: 99%

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Removal of Nitrate by Eichhornia crassipes sp. in Landfill Leachate

2015

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− . This study shows that concentration of NO 3 − was higher in young landfill (27 mg/L) than that in old landfill (9 mg/L) at neutral pH. Finding of these results indicate that Eichhornia crassipes sp. has the ability to remove NO 3 − at different concentrations in three days. Approximately 69 and 64 % of NO 3 − that present in leachate from young landfill was removed in sample without dilution and 50 % dilution, respectively. While approximately 28 and 33.6 % of NO 3 − present in leachate collected from old landfill was removed in similar dilution samples. This study is very significant to identify the capability of Eichhornia crassipes sp. to remove NO 3 − in landfill leachate.

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“…Determination of the capability of NO 3 − uptake by Eichhornia crassipes sp. during leachate treatment was conducted in an aerobic reactor (glass container, 10 L).…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Removal of Nitrate by Eichhornia crassipes sp. in Landfill Leachate

2015

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“…Mondal and Warith [45] reported using shredded tire chips as packing media in trickling filter systems for landfill leachate treatment. Matthews et al [46] evaluated treatment of landfill leachate using passive aeration trickling filters, reporting on the effects of leachate characteristics and temperature on rates and process dynamics. Ziolko et al [47] reported about 49% effectiveness of conventional trickling filters at reducing copper concentrations in wastewaters.…”

Section: Trickling Filtersmentioning

confidence: 99%

Biofilm Fixed Film Systems

Gullicks

Hasan

Das

et al. 2011

Water

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The work reviewed here was published between 2008 and 2010 and describes research that involved aerobic and anoxic biofilm treatment of water pollutants. Biofilm denitrification systems are covered when appropriate. References catalogued here are divided on the basis of fundamental research area or reactor types. Fundamental research into biofilms is presented in two sections, Biofilm Measurement and Characterization and Growth and Modeling. The reactor types covered are: trickling filters, rotating biological contactors, fluidized bed bioreactors, submerged bed biofilm reactors, biological granular activated carbon, membrane bioreactors, and immobilized cell reactors. Innovative reactors, not easily classified, are then presented, followed by a section on biofilms on sand, soil and sediment.

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