Modeling of Heavy Metal (Ni, Mn, Co, Zn, Cu, Pb, and Fe) and PAH Content in Stormwater Sediments Based on Weather and Physico-Geographical Characteristics of the Catchment-Data-Mining Approach

Bąk, Łukasz; Szeląg, Bartosz; Sałata, Aleksandra; Studziński, Jan

doi:10.3390/w11030626

Cited by 11 publications

(8 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The next step was to determine the initial and boundary conditions [52]. In the analysis, in terms of boundary conditions, the grey water inflow rate was 40 °C at 9 L/min and the same was the CFD modeling (computational fluid dynamics) is a computer method, which helps to analyze and solve problems connected with the flow of liquids and gases.…”

Section: Swot/tows Analysis Of Dwhr Systemsmentioning

confidence: 99%

“…The next step was to determine the initial and boundary conditions [52]. In the analysis, in terms of boundary conditions, the grey water inflow rate was 40 • C at 9 L/min and the same was the volume flow of cold water of 10 • C. The outflow of grey water from the heat exchanger was provided by setting the outlet pressure of 0 Pa.…”

Section: Potential Impact and Uncertainty Of Dwhr Systemsmentioning

confidence: 99%

See 1 more Smart Citation

Opportunities and Threats of Implementing Drain Water Heat Recovery Units in Poland

et al. 2019

View full text Add to dashboard Cite

In recent years an increase of interest in usage of renewable energy sources as a substitution of fossil fuels is being noticeable. However, the waste heat potential, which can be used as an additional source of energy for heating water in buildings, is being omitted. The sources of this heat can be grey water discharged from such sanitary facilities as showers or washing machines. In response to this issue, we took on the task to define and analyze key factors affecting the development of DWHR (Drain Water Heat Recovery) systems using PESTLE (political, economic, social, technological, legal and environmental) analysis. The strengths and weaknesses of these systems were also identified. The studies were based on CFD (computational fluid dynamics) modeling tools. In the Autodesk Simulation CFD software environment, a DWHR unit was made, which was then analyzed for heat exchange efficiency. The obtained results were the basis for preparing the strategy for the development of Drain Water Heat Recovery systems. It was made using the SWOT/TOWS (strengths, weaknesses, opportunities and threats/threats, opportunities, weaknesses and strengths) method, which precisely orders information and allows presenting the project characteristic in readable way for a recipient. The results of the conducted analysis indicated the lack of acceptance on the part of potential users and the resulting need to promote the use of Drain Water Heat Recovery systems at residential level.

show abstract

Section: Swot/tows Analysis Of Dwhr Systemsmentioning

confidence: 99%

Section: Potential Impact and Uncertainty Of Dwhr Systemsmentioning

confidence: 99%

Opportunities and Threats of Implementing Drain Water Heat Recovery Units in Poland

et al. 2019

View full text Add to dashboard Cite

show abstract

“…A similar situation applies to roadside inlets (marked No. Figure 2), whose structure also foresees sedimentation elements capturing polluting items of larger size [25]. Systems also incorporating runoff from roads include sediment wells (marked No.…”

Section: Malodorous Gases In the Sewer Systemmentioning

confidence: 99%

Odours in Sewerage—A Description of Emissions and of Technical Abatement Measures

et al. 2019

View full text Add to dashboard Cite

Malodorous compounds arise at practically every stage of wastewater management, starting from the sewer network, via the technological sewage-treatment system, through to the sludge-management stage. The formation of hydrogen sulphide is a significant problem even while sewage remains in sewers, as anaerobic conditions prevalent in the network are conducive to wastewater putrefaction, and therefore contribute to increased malodorous emissions. The development of such anaerobic conditions is favoured by the oversizing of conduits or designs that feature inadequate gradients, causing wastewater in the network to stagnate. Where emissions to the air from wastewater occur, they are found to constitute a complex mixture of perhaps even 1000 different substances, produced under varying process conditions. Among those present are compounds of sulphur and nitrogen, chlorinated compounds, and other organics. In Poland, the issue of odour annoyance has not yet been subject to standardisation in either legal or methodological terms. Indeed, as only 11 EU Member States have regulations in place regarding air-quality standards, it is likely that such a law will soon be developed to try and resolve problems with odour annoyance, including those originating in the systems dealing with wastewater. This denotes a need to develop methods of counteracting the formation of odours, and those of a chemical nature are regarded as among the most effective, hence their growing popularity. They also abide by green-technology principles. Against that background, this article seeks to consider the process by which malodorous substances arise in sewer and wastewater-treatment systems, as well as to discuss methods of odour abatement. The work also presents the current legal regulations of relevance to the issue.

show abstract

“…The GWR model was used for spatial prediction of trace metal concentrations in surface and ground waters based on spatial predictors in Pakistan [29]. The statistical models developed by Bąk et al [30] for forecasting the quality of stormwater sediments, in which artificial neural networks are used (multilayer perceptron neural networks), showed varied impacts of catchment characteristics and atmospheric conditions on the chemical composition of sediments. The authors of these investigations concluded that the concentration of heavy metals (Ni, Mn, Co, Zn, Cu, Pb, and Fe) in sediments was far more affected by catchment characteristics (land use, length of the drainage system) than by atmospheric conditions.…”

Section: Introductionmentioning

confidence: 99%

Assessment of quality of water and sediments in small reservoirs in Southern Poland - A case study

Michalec¹,

Cupak²

2021

Environmental Engineering Research

View full text Add to dashboard Cite

The paper presents an attempt to forecast heavy metal pollution of sediments of four designed reservoirs in southern Poland. For this purpose, concentration of dissolved heavy metals (lead, cadmium and nickel) was determined in water of watercourses on which the designed reservoirs will be constructed and also in sediments and water flowing into six reservoirs that are already in use. Based on the results of the heavy metal concentrations of six exploited reservoirs, a relationship was developed between heavy metal concentration in the sediment as a function of the concentration of these metals in the inflowing water. Using these relationships, the forecast concentrations of these metals in the sediments of the designed reservoirs were estimated. The mean concentrations of these metals in the planned reservoirs were 20.5 mg. kg-1 for lead, 3.4 mg. kg-1 for cadmium and 14.8 mg. kg-1 for nickel. No dangerous pollution of analyzed metal of water inflows to the planned reservoirs was found. The calculated geoaccumulation index indicates that in terms of the lead and nickel concentrations, sediments in the planned reservoirs will be unpolluted to moderately polluted, while for cadmium concentrations - they will be moderately to strongly polluted.

show abstract

Modeling of Heavy Metal (Ni, Mn, Co, Zn, Cu, Pb, and Fe) and PAH Content in Stormwater Sediments Based on Weather and Physico-Geographical Characteristics of the Catchment-Data-Mining Approach

Cited by 11 publications

References 27 publications

Opportunities and Threats of Implementing Drain Water Heat Recovery Units in Poland

Opportunities and Threats of Implementing Drain Water Heat Recovery Units in Poland

Odours in Sewerage—A Description of Emissions and of Technical Abatement Measures

Assessment of quality of water and sediments in small reservoirs in Southern Poland - A case study

Contact Info

Product

Resources

About