Mumtaz Khan, Shazma Ashraf, Thaqal M. Alhuzaymi, Lubna Ghani, Wooyong Um
{"title":"Low level radioactive waste treatment by coagulation flocculation technique: a review","authors":"Mumtaz Khan, Shazma Ashraf, Thaqal M. Alhuzaymi, Lubna Ghani, Wooyong Um","doi":"10.1007/s10967-024-09825-8","DOIUrl":null,"url":null,"abstract":"<div><p>Current review reports coagulation-based flocculation for treatment of radioactive wastewater. At low pH, high dosages are necessary to achieve charge neutralization resulting poor separation yield. Most radionuclides coagulate and flocculate under alkaline conditions. Stirring also affects the morphology of flocs while excessive stirring re-dissolves the flocs and decreases the SEPARATION yield. Yield depends on coagulant mixing rate, pH, concentration, temperature, stirring time and rate, settling time and sedimentation rate. The commonly used coagulants are Fe and Al while Fe is famous among all coagulants. This review is useful to develop a radionuclides separation plan from environmental protection perspective in the emergency situation.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"333 12","pages":"6079 - 6091"},"PeriodicalIF":1.5000,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Radioanalytical and Nuclear Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10967-024-09825-8","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
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Abstract
Current review reports coagulation-based flocculation for treatment of radioactive wastewater. At low pH, high dosages are necessary to achieve charge neutralization resulting poor separation yield. Most radionuclides coagulate and flocculate under alkaline conditions. Stirring also affects the morphology of flocs while excessive stirring re-dissolves the flocs and decreases the SEPARATION yield. Yield depends on coagulant mixing rate, pH, concentration, temperature, stirring time and rate, settling time and sedimentation rate. The commonly used coagulants are Fe and Al while Fe is famous among all coagulants. This review is useful to develop a radionuclides separation plan from environmental protection perspective in the emergency situation.
期刊介绍：
An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.
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