Tools and Techniques for Purification of Water Using Nano Materials

Big data is a fast-growing technology that has the scope to mine huge amount of data to be used in various analytic applications. With large amount of data streaming in from a myriad of sources: social media, online transactions and ubiquity of smart devices, Big Data is practically garnering attention across all stakeholders from academics, banking, government, heath care, manufacturing and retail. Big Data refers to an enormous amount of data generated from disparate sources along with data analytic techniques to examine this voluminous data for predictive trends and patterns, to exploit new growth opportunities, to gain insight, to make informed decisions and optimize processes. Data-driven decision making is the essence of business establishments. The explosive growth of data is steering the business units to tap the potential of Big Data to achieve fueling growth and to achieve a cutting edge over their competitors. The overwhelming generation of data brings with it, its share of concerns. This paper discusses the concept of Big Data, its characteristics, the tools and techniques deployed by organizations to harness the power of Big Data and the daunting issues that hinder the adoption of Business Intelligence in Big Data strategies in organizations.

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Application of Nano Materials to Enhance Mechanical Performance and Microstructure of Recycled Aggregate Concrete

10.23918/iec2018.10 ◽

2018 ◽

Author(s):

Khaleel H. Younis ◽

Shelan Muhammed Mustafa

Keyword(s):

Mechanical Performance ◽

Recycled Aggregate Concrete ◽

Recycled Aggregate ◽

Nano Materials ◽

Aggregate Concrete

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Solar photocatalysis mediated by ZnO for the removal of last traces of Indigo carmine dye pollutant from water

International Journal of Science and Engineering Invention ◽

10.23958/ijsei/vol04-i02/02 ◽

2018 ◽

Vol 4 (02) ◽

Author(s):

Veena Vijayan ◽

Suguna Yesodharan ◽

E. P. Yesodharan

Keyword(s):

Indigo Carmine ◽

Parent Compound ◽

Oxygen Demand ◽

Green Technology ◽

Solar Photocatalysis ◽

Reaction Proceeds ◽

Transient Intermediates ◽

Significant Chemical ◽

Hydroxyl Free Radicals ◽

Purification Of Water

Solar photocatalysis as a potential green technology for the removal of traces of the dye pollutant Indigo carmine (IC) from water is investigated using ZnO as the catalyst. Degradation/decolorization alone does not result in complete decontamination as seen from the significant Chemical Oxygen Demand (COD) of water even after the parent compound has disappeared completely. The degradation proceeds through many intermediates which also get mineralized eventually but slowly. Oxalic acid is identified as a stable slow mineralizing degradation product which itself is formed from other transient intermediates. Effect of various parameters such as catalyst dosage, concentration of the dye, pH, temperature, presence of contaminant salts etc. on the degradation is investigated and quantified. Oxidants such as S2O82- and H2O2 have only moderate influence on the degradation. The degradation follows variable kinetics depending on the concentration of the substrate. The reaction proceeds very slowly in the absence of O2 indicating the importance of reactive oxygen species and hydroxyl free radicals in photocatalysis. H2O2 formed insitu in the system undergoes concurrent decomposition resulting in stabilization in its concentration. The study demonstrates that solar photocatalysis can be used as a viable tool for the purification of water contaminated with traces of IC.

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