'Chromium vi' presentation slideshows

HEXAVALENT CHROMIUM OVERVIEW

2.27k views • 174 slides

HEXAVALENT CHROMIUM OVERVIEW

2.17k views • 174 slides

Working with Hexavalent Chromium (Chromium VI)

Working with Hexavalent Chromium (Chromium VI). Meeting Training Requirements. Preview this program and include your specific workplace information before conducting the training. Modify, add, delete, or otherwise customize slides as needed for your workplace .

880 views • 49 slides

Chapter 6 Toxic Metals and Elements

Chapter 6 Toxic Metals and Elements. February 4, 2010. Toxic Metals. Include: Heavy metals (e.g., lead, mercury, nickel) Other metallic compounds (e.g., aluminum, iron, tin) Entire human population is exposed to low-levels of heavy metals from deposits in the earth (naturally occurring)

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Area Office Interesting Cases

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The Clear Advantages of Smoke-Free Apartments

The Clear Advantages of Smoke-Free Apartments. Three Stages of Truth. All truth passes through three stages: First it is ridiculed Second it is violently opposed Third it is accepted as being self-evident. Remember When . . . It was legal to dump raw sewage in lakes and streams.

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Application of immobilized banana peels Musa paradisiaca L. into calcium alginate beads for removal of chromium VI from

The capacity of banana peels Musa paradisiaca L. immobilized into calcium alginate beads to remove chromium VI ions from aqueous solution was studied. Immobilization enhances sorption of chromium VI and repetitive use of sorbent could be achieved. The immobilized banana peels in to calcium alginate beads was characterized by FTIR, SEM and XRD. The influence of several operating experimental parameters such as solution pH, biosorbent dose concentration, initial chromium VI ions concentration, contact time, temperature and agitation rate determine the efficiency of metal uptake by biosorbent. Desorption efficiency of banana peels immobilized in to calcium alginate beads was highest for sulphuric acid followed by hydrochloric acid and nitric acid. The equilibrium isotherm data were comparing by using the Langmuir, Freundlich, DKR and Temkin adsorption isotherm models in which Langmuir isotherm was found to be fitted best. The Kinetics of sorption of chromium VI were described by a pseudo First order kinetic, pseudo second order kinetic, Elovich and Weber and Morris intra particle diffusion model in which pseudo second order model was found to be fitted best. Thermodynamic studies were also carried out. The results showed that immobilized banana peels Musa paradisiaca L. in to calcium alginate beads was a low cost promising sorbent for sequester of chromium VI from wastewater. Amit S. Sharma | Prof. Dr. Satish A. Bhalerao "Application of immobilized banana peels (Musa paradisiaca L.) into calcium alginate beads for removal of chromium (VI) from aqueous solution" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-2 , February 2018, URL: https://www.ijtsrd.com/papers/ijtsrd9665.pdf Paper URL: http://www.ijtsrd.com/other-scientific-research-area/enviormental-science/9665/application-of-immobilized-banana-peels-musa-paradisiaca-l-into-calcium-alginate-beads-for-removal-of-chromium-vi-from-aqueous-solution/amit-s-sharma

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SYNTHETIC ORGANIC TANNING SYSTEM

Soaking Liming Fleshing Deliming Bating. Pickling Chrome Tanning Wet blue. Alternative tanning Wet-white. Splitting Shaving. Complete the tanning. Retanning. Finishing. SYNTHETIC ORGANIC TANNING SYSTEM. Viorica Deselnicu, Marian Crudu, Ioannis Ioannidis, Dana Corina Deselnicu

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