| People | Locations | Statistics |
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| Seuring, Stefan |
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| Nor Azizi, S. |
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| Pato, Margarida Vaz |
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| Kölker, Katrin |
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| Huber, Oliver |
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| Király, Tamás |
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| Spengler, Thomas Stefan |
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| Al-Ammar, Essam A. |
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| Dargahi, Fatemeh |
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| Mota, Rui |
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| Mazalan, Nurul Aliah Amirah |
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| Macharis, Cathy | Brussels |
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| Arunasari, Yova Tri |
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| Nunez, Alfredo | Delft |
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| Bouhorma, Mohammed |
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| Bonato, Matteo |
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| Fitriani, Ira |
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| Autor Correspondente Coelho, Sílvia. |
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| Pond, Stephen |
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| Okwara, Ukoha Kalu |
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| Toufigh, Vahid |
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| Campisi, Tiziana | Enna |
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| Ermolieva, Tatiana |
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| Sánchez-Cambronero, Santos |
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| Agzamov, Akhror |
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Talebbeydokhti, Nasser
in Cooperation with on an Cooperation-Score of 37%
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Publications (13/13 displayed)
- 2023Assessment of Seismic Resilience in Urban Water Distribution Network Considering Hydraulic Indicescitations
- 2023Evaluation of Darcy–Weisbach Friction Factors of Fiberglass Pipes Based on Internal Surface Roughness Measurementcitations
- 2022Correction to: Analytical and Numerical Solutions to Level Pool Routing Equations for Simplified Shapes of Inflow Hydrographs
- 2022Investigation of Energy Dissipation Rate of Stepped Vertical Overfall (SVO) Spillway Using Physical Modeling and Soft Computing Techniquescitations
- 2022Investigation of Iron and Lead Changes in Wastewater Treatment Sludge Decomposition Reactor With and Without Worm Existence
- 2022Analytical and Numerical Solutions to Level Pool Routing Equations for Simplified Shapes of Inflow Hydrographscitations
- 2022Optimizing Operational Parameters of Electrokinetic Technique Assisted by a Permeable Reactive Barrier for Remediation of Nitrate-Contaminated Soilcitations
- 2020Comparison of Explicit Relations for Calculating Colebrook Friction Factor in Pipe Network Analysis Using h-based Methodscitations
- 2019Development of a New Flow-dependent Scheme for Calculating Grain and Form Roughness Coefficientscitations
- 2019Analytical Solutions for Water Infiltration into Unsaturated–Semi-Saturated Soils Under Different Water Content Distributions on the Top Boundarycitations
- 2017External Validation Criteria and Uncertainty Analysis of Maximum Scour Depth at Downstream of Stilling Basins Based on EPR and MT Approachescitations
- 2016New Analytical Solutions to 2-D Water Infiltration and Imbibition into Unsaturated Soils for Various Boundary and Initial Conditionscitations
- 2011Modeling of non-breaking and breaking solitary wave run-up using shock-capturing TVD-WAF schemecitations
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document
Investigation of Iron and Lead Changes in Wastewater Treatment Sludge Decomposition Reactor With and Without Worm Existence
Abstract
Mixture of industrial and municipal wastewater causes an increase in concentration of heavy metals in wastewater and sludge. Sludge can be recycled to vermicompost. Heavy metal concentration of resulting vermicompost is important, as they are being used in green spaces, where irrigation disperses heavy metals into the underground water resources and affect the quality of underground water. We study concentration of iron and lead in substrate and worm tissues over time and depth in batch reactors. Two bins of 40 × 40 × 120 cm^3 (length × width × depth) are built and filled with sludge (T1) and sludge + soil (T2). We put perforated tubes in four sides of bins and a faucet with constant flow of distilled water above each pilot to produce water flow from top to the bottom of reactors. Pilots run in two stages; with and without the presence of earthworms. To study changes in worm tissues, two bins of 30 × 30 × 30 cm^3 (length × width × depth) are built, and earthworm is then added. These bins are filled with sludge (T3) and sludge + soil (T4). Obtained results from (T1) and (T2) confirm heavy metal concentration decrease over time, but increase through depth of reactors. Presence of worms in both reactors shows decrease in concentration of heavy metals. Results obtained from (T3) and (T4) indicate reduction in concentration of lead and iron in substrate and bioaccumulation in worm body mass. TOC of substrate was decreased but TKN increased during time. Initial C/N ratio is 22.2 in pilot T3, and it is decreased to 7.4 and final pH is near 7.
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