Leachate characteristics as influenced by application of anaerobic baffled reactor effluent to three soils: a soil column study

Bame, I.B.; Hughes, J. C.; Titshall, Louis; Buckley, C.A.

doi:10.1016/j.chemosphere.2013.07.080

Cited by 17 publications

(25 citation statements)

References 21 publications

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“…The pH of the Ia and SS leachates increased as the amount of effluent entering the soil columns increased, while it decreased in the Cf and Se with final leachate pH values of 6.0 and 6.2, respectively, in the latter 2 soils. Bame et al (2013), who used Ia and Se soils from the same location as in the present study, and a very similar sandy soil to the Cf, found the same trends in leachate pH in all 3 soils studied from their larger down-flow columns. The effluent is likely to undergo a filtration process as it passes through the soils that will change the chemical characteristics of both the effluent and the soil.…”

Section: Leachate Ec and Phsupporting

confidence: 57%

“…This could have caused the fall in pH of the leachate relative to that of the incoming effluent in the Se and Cf soils. The increasing pH of the leachates from the Ia soil with increasing number of PVs was likely a result of the liming effect of the incoming effluent on this initially highly acidic soil, as found by Bame et al (2013;.…”

Section: Leachate Ec and Phmentioning

confidence: 89%

“…Therefore, safe reuse of wastewater effluents must consider the fate of P and N when applied to land, as well as the presence of possible inorganic pollutants, such as heavy metals, and the pathogenic content of the wastewater. The ABR effluent used in the present study contains very low concentrations of inorganic pollutants (Bame et al, 2013; and investigating the fate of the pathogenic component of the ABR effluent was not within the scope of this paper.…”

Section: Introductionmentioning

confidence: 99%

“…Selected physical and chemical properties of the soils and effluent are given in Table 1. For more details of the effluent composition, the reader is referred to Bame et al (2013;.…”

Section: Soils and Effluentmentioning

confidence: 99%

“…However, if application of the effluent exceeds the capacity of the soil/plant system to utilise these elements and the water supplied, then environmental problems can arise. A study by Bame et al (2013) showed that soil type plays a major role in affecting the chemical composition of leachates from soils treated with ABR effluent compared to leaching with water and those soils of different properties retained plant nutrients from the effluent in varying amounts.…”

Section: Introductionmentioning

confidence: 99%

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The effect of anaerobic baffled reactor effluent on nitrogen and phosphorus leaching from four soils in a laboratory column experiment

Adhanom

Hughes

Odindo

2018

WSA

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Leaching of nitrogen and phosphorus from soil columns during application of anaerobic baffled reactor effluent was evaluated. The soils used were from Inanda (Ia), Cartref (Cf), and Sepane (Se) forms, and a silica sand (SS). Each was packed into duplicate columns (103 mm internal diameter; 200 mm length), four each for up-flow and down-flow leaching. Effluent was delivered continuously for 6, 8 and 35 days at high (32 mm·h ) rates, respectively. At each flow rate, 9 pore volumes were collected. Leachates were analysed for pH, electrical conductivity (EC), nitrate and phosphate. Leachate pH from all soils was lower than the original effluent (6.4). Leachate EC varied between 0.5 and 0.9 dS·m -1 compared to the effluent EC of 0.84 dS· m -1. At high flow rate, the amount of nitrogen leached was similar from all soils. At low and medium rates, more nitrogen was leached from the coarser-textured SS and Cf than the finer-textured Ia and Se, at both flow directions. Flow direction had a greater effect on nitrogen leaching from finer-than coarser-textured soils. Phosphorus concentrations were higher than the original effluent at medium and high flow rates indicating that the soils were a source of phosphorus. At low flow rate, phosphorus concentrations were much lower than the original effluent, indicating soil retention. Phosphorus leaching was greater from coarser-than finer-textured soils in the up-flow columns, but the opposite occurred in the down-flow columns.

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Section: Leachate Ec and Phsupporting

confidence: 57%

Section: Leachate Ec and Phmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

“…Selected physical and chemical properties of the soils and effluent are given in Table 1. For more details of the effluent composition, the reader is referred to Bame et al (2013;.…”

Section: Soils and Effluentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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