Fate of saline ions in a planted landfill site with leachate recirculation

Loncnar, Mojca; Zupančič, Marija; Bukovec, Peter; Justin, Maja Zupančič

doi:10.1016/j.wasman.2009.09.010

Cited by 22 publications

(19 citation statements)

References 18 publications

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“…Similarly, Glenn et al (2009) also showed an increase in Na + at the surface of a soil that received Na + -rich wastewater when the irrigation level was kept below the potential evapotranspiration. In the present work, Na + concentrations in the soil ranged from near zero up to 1.2 cmol kg −1 , showing that concentrations throughout the soil profi le depend on the rainfall aff ecting Na + concentrations in the leachate (Loncnar et al, 2010) and its movement through the soil aft er application (Gloaguen et al, 2007). Leal et al (2009) added up to 6000 kg ha −1 of Na + to a soil receiving sewage effl uent, resulting in high Na + levels in the soil for up to 16 mo.…”

Section: Leachate Composition and Salinizing Cations In Soilsupporting

confidence: 51%

“…In addition, as stated above, the lower occurrence of rain after the first application and consequently the higher concentration in the topsoil also favored NH 3 –N losses because it remained closer to the soil surface (Sommer and Hutchings 2001). Climatic events, especially rainfall, are some of the most important factors affecting the movement of solutes in soil (Loncnar et al, 2010) and NH 3 –N volatilization (Génermont and Cellier, 1997; Sommer and Hutchings, 2001; Sommer et al, 2003; Van der Stelt et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

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Land Application of Municipal Landfill Leachate: Fate of Ions and Ammonia Volatilization

Santos

Panchoni

Bini³

et al. 2013

J. Environ. Qual.

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Landfill leachates are pollutants rich in ammoniacal N, Na, and K, but land application potentially offers an alternative for recycling these leachate nutrients. We applied landfill leachate corresponding to 0, 110, 220, 330, and 440 kg ha of total N, divided in three applications (July, August, and October 2008), onto the surface of an acidic (pH 5.5-6.0) clay (79% clay) Ultisol and monitored NH volatilization just after applications and microbiological (0-10 cm) and chemical attributes (0-60-cm soil depth) in August 2008, January 2009, and May 2009. Ammonium (up to 30 mg kg), NO (up to 160 mg kg), Na, K (up to 1.1 cmol kg each), and electrical conductivity (up to 1 dS m) increased transiently in soil following applications. Despite >90% of the total leachate N being ammoniacal, NO predominated in the first soil sampling, 14 d after the second application, suggesting fast nitrification, but it decreased in the soil profile thereafter. From 5 to 25% of the total applied N volatilized as NH, with maximum losses within the first 3 d. Applications inhibited (50%) the relative nitrification rate and increased (50%) hot-water-soluble carbohydrates in the soil at the highest rate. No effects were observed on soil microbial biomass C (114-205 mg kg) and activity (5-8 mg CO-C kg d) or on corn grain yields (6349-7233 kg ha). Controlled land application seems to be a viable alternative for landfill leachate management, but NO leaching, NH volatilization, and accumulation of salinizing ions must be monitored in the long term to prevent environmental degradation.

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Section: Leachate Composition and Salinizing Cations In Soilsupporting

confidence: 51%

Section: Discussionmentioning

confidence: 99%

Land Application of Municipal Landfill Leachate: Fate of Ions and Ammonia Volatilization

Santos

Panchoni

Bini³

et al. 2013

J. Environ. Qual.

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“…reduced from the first day and remained at a similar low level until 4 weeks of the experimental period. Meanwhile, Loncnar et al (2010) discovered that the planted willows at a recirculation process of leachate showed a high sustainability of saline ions. The concentration of saline ions was recorded at ranges 132 to 2,592 mg Cl -/L, 69 to 1,310 mg Na ?…”

Section: Bioreactormentioning

confidence: 99%

Sustainable treatment of landfill leachate

et al. 2014

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“…Se ha estudiado poco acerca de la composición de los lixiviados obtenidos del compostaje de material vegetal agrícola; actualmente se conoce que poseen alto contenido de sodio, potasio, nitrógeno (Loncnar et al, 2010); (Popa & Green, 2012), fós-foro , materia orgánica (Cheyns, 2009) y Actinomicetos (Cuesta et al, 2012).…”

Section: Introductionunclassified