Distribution of 137Cs and 60Co in plough layer of farmland: Evidenced from a lysimeter experiment using undisturbed soil columns

ABSTRACT Managed Aquifer Recharge (MAR) is a useful tool for the treatment and use of sewage effluent because it complements conventional treatment, recovers the aquifer and minimizes risk of saltwater intrusion. This study aims to investigate technical data to determine the treatment of wastewater stabilization pond effluent using undisturbed soil columns collected from a coastal watershed study area within the BRAMAR (BRAzil Managed Aquifer Recharge) project. The treatment efficiency was monitored by measuring physico-chemical parameters (BOD 5, COD, DOC, TSS, NH3 and NO3) in two columns filled with undisturbed sandy soil in which sewage effluent was infiltrated under unsaturated condition for 72 days with an average input flow of 10 mm h-1. Results indicated reduction greater than 60% of organic matter, suspended solids and ammoniacal nitrogen. However, high concentrations of nitrate in the outflow were detected originating from nitrification of ammoniacal nitrogen. Moreover, difficulties in relation to soil clogging were observed. Furthermore, this study brought relevant contributions to understanding the influence of the infiltration rate and ability to treat effluent from wastewater stabilization ponds using undisturbed soil columns. Future research should be undertaken to improve the pretreatment methods and the operation of a MAR system in the study area.

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Transport of Sulfadiazine in Undisturbed Soil Columns: Effects of Flow Rate, Input Concentration and Pulse Duration

Journal of Environmental Quality ◽

10.2134/jeq2009.0445 ◽

2010 ◽

Vol 39 (6) ◽

pp. 2147-2159 ◽

Cited By ~ 9

Author(s):

M. Unold ◽

R. Kasteel ◽

J. Groeneweg ◽

H. Vereecken

Keyword(s):

Pulse Duration ◽

Flow Rate ◽

Soil Columns ◽

Undisturbed Soil ◽

Input Concentration

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The Uptake of 203 Hg‐Labeled Mercury Compounds by Bromegrass from Irrigated Undisturbed Soil Columns

Journal of Environmental Quality ◽

10.2134/jeq1978.00472425000700030030x ◽

1978 ◽

Vol 7 (3) ◽

pp. 445-450 ◽

Cited By ~ 19

Author(s):

T. J. Hogg ◽

J. R. Bettany ◽

J. W. B. Stewart

Keyword(s):

Soil Columns ◽

Undisturbed Soil ◽

Mercury Compounds

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Transport and accumulation of heavy metals in undisturbed soil columns

Global NEST Journal ◽

10.30955/gnj.000469 ◽

2013 ◽

Vol 9 (3) ◽

pp. 187-194

Keyword(s):

Heavy Metals ◽

Kola Peninsula ◽

Forest Floor ◽

High Capacity ◽

Soil Columns ◽

Undisturbed Soil ◽

Podzolic Soils ◽

Floor Layer

The podzolic soils of the Kola Peninsula, Russia, have in localised areas been highly contaminated with copper and nickel from smelting activities. Migration and retention of these metals were investigated in undisturbed soil columns irrigated with simulated background and polluted precipitation in order to study the temporal processes of retention and release within the soil. The mineral layers were strongly acidified by the contaminated precipitation. Forest floor layers demonstrated a high capacity to retain input Ni and Cu under all conditions. Mineral layers accumulated some Cu, but released Ni. In general, Ni leached through the soil faster than Cu. Since metals are strongly retained in the forest floor layer, even after reduction or cessation of inputs there may be a significant long–term risk of their leaching to deeper soil and groundwater. This risk cannot be ameliorated without remediative intervention.

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