The Use of Sodium to Calibrate the Transport Modeling of Water Pollution in Sandy Formations Around an Uninsulated Sewage Disposal Site

Szabó, György; Bessenyei, Éva; Hajnal, Andor; Csige, I.; Szabó, Gergely; Tóth, Csaba; Posta, József; Mester, Tamás

doi:10.1007/s11270-015-2742-6

Cited by 9 publications

(6 citation statements)

References 17 publications

(3 reference statements)

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“…Contaminants accumulating in the soil due to industrial activities is a serious environmental issue which needs to be managed by society (MacCormack, 2005;Wycisk et al, 2009;Marshall et al, 2020). Uncontrolled emissions of contaminants lasting for decades leads to severe environmental pollution which can only be managed by expensive remediation measures (Ahmed 2009;Mustak et al, 2015;Fischer, 2008, Szabó et al, 2016. The amount of contaminants occurring under the surface in various states of matter can nowadays be determined with several geoinformatics software programmes, which can be used to identify the sources and the spread of contaminants in order to facilitate the remediation process (Yang et al 2004;Kátai 2008;Hürkamp et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Case study for estimation of the amount of contaminants stored in soil in an industrial area

Karancsi¹,

Kiss

Béres

et al. 2021

Landsc. environ.

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One of the main sources of contaminants in the soil is industrial activity which has become one of the major environmental problems of the last few decades. The development of geoinformatics as well as the introduction of standards and regulations has led to a decreased risk of soil contamination and the cost-effective optimization of remediation activities. Based on the above, the aim of our study is to demonstrate the geoinformation processing of the remediation performed in an industrial area located in the Great Hungarian Plain, with special regard to the estimation of the amount and spread of the contaminants accumulated in the soil. In order to reveal the lithological and hydrogeological properties of the investigated area and the environmental status of the underground areas, we performed a large number of shallow land drillings (115). During the field sampling, 1000–1500 grams of samples were collected from the drill bit and were processed in an accredited laboratory. Based on the concentration and volume models created it can be concluded that with the estimations performed via modeling, we were able to locate the most critical areas from the standpoint of contamination. It was revealed that the focal point of the contaminants accumulated in the soil was in the central part of the investigated area. Furthermore, the model demonstrated the effect of lithological factors, since contaminants tend to accumulate more heavily in cohesive soils compared to porous rocks. The extent of contaminant concentration in the aquifer increased with decreasing depth; however, after reaching the floor clay the extent of contaminant concentration began to decrease. The lithological layer closest to the surface contained the most contaminants.

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Section: Introductionmentioning

confidence: 99%

Case study for estimation of the amount of contaminants stored in soil in an industrial area

Karancsi¹,

Kiss

Béres

et al. 2021

Landsc. environ.

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“…In the rural areas of Hungary, one of the most important sources of organic and inorganic (NH 4 + , NO 2 , NO 3 − ) nitrogen compounds is wastewater originating from households, the collection of which remains an unsolved problem in many places (Mester and Szabó 2013;Szabó et al, 2016). Hungary with the accession to the European Union ratified the Water Framework Directive (WFD) (2000/60/EC) and the Urban Wastewater Treatment Directive (UWTD) (271/91/EEC), which regulate the issue of contamination originating from agriculture and domestic wastewater.…”

Section: Introductionmentioning

confidence: 99%

“…After reviewing the literature, we concluded that even though papers have been published on the environmental problems caused by sewage effluent in settlements (Wolf et al, 2004;McArthur et al, 2012;Edo et al, 2014, Augustsson et al, 2016Szabó et al, 2016), few studies have been carried out focusing on the direct environmental impact of a specific sewage tank (Mester et al, 2016(Mester et al, , 2017. We are not aware of studies showing what types of changes occur in the quality of groundwater after eliminating a sewage tank.…”

Section: Introductionmentioning

confidence: 99%

Effects of nitrogen loading from domestic wastewater on groundwater quality

Mester

Balla

Karancsi

et al. 2019

WSA

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In this study the effects of nitrogen effluent from a permeable constructed sewage tank on groundwater quality were investigated. Sampling took place before and 1.5 years after the closure. Using a 3D hydrogeological model, the spatial distribution of dissolved inorganic nitrogen (DIN), comprising the species NH4+, NO2- and NO3-, was modelled in the saturated zone and the amounts and changes in the ratio of NH4-N, NO2-N, NO3-N were determined. The first part of our general hypothesis, that the groundwater was heavily contaminated in the area surrounding the sewage tank, was clearly verified, since every investigated nitrogen compound exceeded the contamination limit values; but the second part of our hypothesis, that the degree of contamination would significantly decrease after the sewage tank was taken out of use has not been confirmed, since the amount of nitrogen present in inorganic forms increased in the modelled zone. The increase in DIN and the relatively high concentration of NH4+ (35 mg/L) in the immediate vicinity of the tank can be explained by the fact that organic matter (OM) accumulated over the decades provided a constant supply of inorganic nitrogen forms.

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“…The most important contamination sources are related to raw sewage, domestic or industrial wastewater discharges, as well as agricultural runoff (Lewis and Claasen, 2018). Uninsulated underground sewage sites, which have direct contact with groundwater therefore, wastewater infiltrates easily into the shallow aquifer (Szabó et al 2016 andMester et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of groundwater quality changes following the establishment of a sewage network

et al. 2019

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The Use of Sodium to Calibrate the Transport Modeling of Water Pollution in Sandy Formations Around an Uninsulated Sewage Disposal Site

Cited by 9 publications

References 17 publications

Case study for estimation of the amount of contaminants stored in soil in an industrial area

Case study for estimation of the amount of contaminants stored in soil in an industrial area

Effects of nitrogen loading from domestic wastewater on groundwater quality

Evaluation of groundwater quality changes following the establishment of a sewage network

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