Electronic Resource
Role of phosphogypsum and NPK amendments on the retention or leaching of metals in different soils
| العنوان: | Role of phosphogypsum and NPK amendments on the retention or leaching of metals in different soils |
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| المؤلفون: | UCL - SST/ELI/ELIE - Environmental Sciences, Ammar, Rawaa, Jaafar Kanbar, Hussein, Kazpard, Véroniue, Wazne, Mahmoud, El Samrani, Antoine G., Amacha, Nabil, Saad, Zeinab, Chou, Lei |
| المصدر: | Journal of Environmental Management, , no.178, p. 20-29 (2016) |
| بيانات النشر: | Academic Press 2016 |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Column leaching tests were conducted to investigate the effects of soil physicochemical characteristics on metal mobility in the subsurface. The metals investigated originated from disposed industrial waste byproducts and from agrochemicals spread over the farmlands. Soil column tests can provide insights into leaching of metals to underlying water compartments. The findings of this study can be used for prevention strategies and for setting risk assessment approaches to land-use and management, and soil and water quality and sustainability. Soils collected from an industrial (IS) watershed and an agricultural (AQ) hydrographic basin were used in soil column leaching experiments. The soil samples were characterized for mineralogy, functional groups, grain size, surface charge, soil type, porosity, and cation exchange capacity (CEC) along with elemental composition. Varying concentrations of phosphogypsum industrial waste or agrochemical (NPK fertilizer) was then added to the surface of the packed columns (n ¼ 28). The columns were subjected to artificial rain over a period of 65 days. Leachates were collected and analyzed for dissolved Naþ, Kþ, and Cd2þ throughout the experimental period, whereas residual Cd content in the subsurface soil was measured at the end of the experiment. Physicochemical characterization indicated that the AQ soil has a higher potential for metal retention due to its fine clay texture, calcareous pH, high organic matter content and CEC. Metal release was more prominent in the IS soil indicating potential contamination of the surrounding soil and water compartments. The higher metal release is attributed to soil physicochemical characteristics. High calcium concentrations of phosphogypsum origin is expected to compete for adsorbed bivalent elements, such as Cd, resulting in their release. The physicochemical characteristics of the receiving media should be taken into consideration when planning land-use in order to achieve sustainable develo |
| مصطلحات الفهرس: | Mediterranean soils, Disturbed oil columns, Leachates, Elemental mobility, Agrochemicals, Industrial waste, 1413, info:eu-repo/semantics/article |
| URL: | |
| الاتاحة: | Open access content. Open access content info:eu-repo/semantics/restrictedAccess |
| ملاحظة: | English |
| Other Numbers: | UCDLC oai:dial.uclouvain.be:boreal:173761 boreal:173761 info:doi/10.1016/j.jenvman.2016.04.042 urn:ISSN:0301-4797 urn:EISSN:1095-8630 1130469931 |
| المصدر المساهم: | UNIVERSITE CATHOLIQUE DE LOUVAIN From OAIster®, provided by the OCLC Cooperative. |
| رقم الانضمام: | edsoai.on1130469931 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |