Effect of long-term electrodialytic soil remediation on Pb removal and soil weathering

Publication date: Available online 17 May 2018Source: Journal of Hazardous MaterialsAuthor(s): Gry Skibsted, Lisbeth M. Ottosen, Maria Elektorowicz, Pernille E. JensenAbstractWeathering of soil minerals during long-term electrochemical soil remediation was evaluated for two different soils: an industrially Pb contaminated soil with high carbonate content and an unpolluted soil with low carbonate content. A constant current of 5 mA was applied for 842 days, and sampling was made 22 times during the treatment. The overall qualitative mineral composition was unaffected by electrodialysis, except for calcite removal which was complete. However, dissolution and removal of Al, Fe, Si, Mg, Ca and Pb from the soil during the treatment exceeded the fraction extractable by digestion in 7 M HNO3, and provided evidence of enhanced mineral dissolution induced by the current. Nevertheless, the total dissolved Si and Al only constituted 0.2–0.3% and 1.1–3.5% of the total content, while the Pb overall removal from the contaminated soil was only 8.1%. An observed reduction in the dry matter of 4.5% and 13.5% from the two soils, respectively was mainly due to dissolution of CaCO3 and organic matter, but also included a minor dissolution of other soil minerals.
Source: Journal of Hazardous Materials - Category: Environmental Health Source Type: research

Related Links:

Authors: Mukai M, Komori K, Oka T Abstract The advent of new chemotherapeutic and immunotherapeutic treatments has markedly improved outcomes in patients with cancer. However, increasing numbers of elderly patients with cancer and prolonged periods of treatment have made the management of cardiovascular complications and treatment-induced cardiotoxicity an important concern, and onco-cardiology has received increasing attention. The number of patients with cardiotoxicity, particularly atherosclerotic lesions, and the usage of angiogenesis inhibitors have increased, making the involvement of onco-cardiologists essen...
Source: Journal of Atherosclerosis and Thrombosis - Category: Cardiology Tags: J Atheroscler Thromb Source Type: research
CONCLUSION: In a relatively young but high-risk population, a lipoprotein profile predominated by triglyceride-rich lipoproteins was associated with increased risk of CAC, while one predominated by HDL lipoproteins offered modest protection. Lipoprotein sub-fraction analysis may help to further discriminate patients who require more intensive cardiovascular work-up and treatment. PMID: 30224606 [PubMed - as supplied by publisher]
Source: Journal of Atherosclerosis and Thrombosis - Category: Cardiology Tags: J Atheroscler Thromb Source Type: research
Conclusion: DRT is inversely associated with UFR in CHD patients. Whether a high UFR should be recommended to reduce the DRT needs to be elucidated through an adequate prospective randomized study.Blood Purif
Source: Blood Purification - Category: Hematology Source Type: research
ConclusionWe have consolidated a Portuguese version of the European Anatomical Terminology of the Internal Nose and Paranasal Sinuses, which will help in the publication of technical announcements, scientific publications and the teaching of the internal anatomical terms of the nose and paranasal sinuses in Brazil.ResumoIntroduçãoA cirurgia endoscópica funcional endonasal é um procedimento cirúrgico frequente entre os otorrinolaringologistas. Em 2014, a Sociedade Europeia de Rinologia publicou o “Documento Europeu para Posicionamento sobre a Terminologia Anatômica Interna do N...
Source: Brazilian Journal of Otorhinolaryngology - Category: ENT & OMF Source Type: research
Ana B. Tinoco, Dean C. Semmens, Emma C. Patching, Elizabeth F. Gunner, Michaela Egertov á, Maurice R. Elphick
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
Ivan N. Tyurenkov, Denis V. Kurkin, Dmitry A. Bakulin, Elena V. Volotova, Evgeny I. Morkovin, Mikhail A. Chafeev, Ruben N. Karapetian
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
Markku Lehto, Per-Henrik Groop
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
Yoshio Yamauchi, Maximillian A. Rogers
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
Ramiro Alsina, Milagros Trotta, Viviana Florencia Bumaschny
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
Shavi Fernando, Euan Morrison Wallace, Beverley Vollenhoven, Nicholas Lolatgis, Nicole Hope, Melissa Wong, Mark Lawrence, Anthony Lawrence, Chris Russell, Kenneth Leong, Philip Thomas, Luk Rombauts
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
More News: Minerals | Organic