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CaO2 Nano

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https://www.readbyqxmd.com/read/28808820/benzene-contaminated-groundwater-remediation-using-calcium-peroxide-nanoparticles-synthesis-and-process-optimization
#1
Hamid Mosmeri, Ebrahim Alaie, Mahmoud Shavandi, Seyed Mohammad Mehdi Dastgheib, Saeideh Tasharrofi
Nano-size calcium peroxide (nCaO2) is an appropriate oxygen source which can meet the needs of in situ chemical oxidation (ISCO) for contaminant remediation from groundwater. In the present study, an easy to handle procedure for synthesis of CaO2 nanoparticles has been investigated. Modeling and optimization of synthesis process was performed by application of response surface methodology (RSM) and central composite rotatable design (CCRD) method. Synthesized nanoparticles were characterized by XRD and FESEM techniques...
August 14, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28540550/simultaneous-enhancement-of-sludge-dewaterability-and-removal-of-sludge-borne-heavy-metals-through-a-novel-oxidative-leaching-induced-by-nano-cao-2
#2
Boran Wu, Xiaohu Dai, Xiaoli Chai
The production of sewage sludge with the presence of various contaminants has been a serious issue for the operation of wastewater treatment plants on both the economical and environmental sides. To minimize the sludge volume to be handled and limit the potential environmental risk, this study developed a novel oxidative leaching process for enhanced sewage sludge dewatering and simultaneous removal of heavy metals based on nano-CaO2 . Response surface methodology determined the following optimal conditioning parameters in terms of capillary suction time reduction: 0...
July 2017: Environmental Science and Pollution Research International
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