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Adsorptive Removal of Bisphenol -A

Adsorptive Removal of Bisphenol -A. Being Presented by P SUDHAKAR M.Tech . 2 nd year. Under the guidance of Dr. I.D. MALL. CONTENT. 1. INTRODUCTION. 2. LITERATURE REVIEW. 3. OBJECTIVE. 4. METHODOLOGY. 5. RESULTS and DISCUSSIONS. 6. CONCLUSIONS. 7. REFERENCES.

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Adsorptive Removal of Bisphenol -A

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  1. Adsorptive Removal of Bisphenol-A Being Presented by P SUDHAKAR M.Tech. 2nd year Under the guidance of Dr. I.D. MALL

  2. CONTENT 1 INTRODUCTION 2 LITERATURE REVIEW 3 OBJECTIVE 4 METHODOLOGY 5 RESULTS and DISCUSSIONS 6 CONCLUSIONS 7 REFERENCES

  3. INTRODUCTION In the past few years, the research on the endocrine disrupting chemicals (EDCs) has been increased with great interest in the area of environmental science and technology owing to the reason that these chemicals (EDCs) have various properties such as estrogenic, antiestrogenic or antiandrogenic and hence their existence leads to the potential damage the endocrine systems of human beings and wildlife. One of the ECDs such as Bisphenol A [2, 2-bis(4- hydroxyphenyl)propane] or BPA is of the important concern due its adverse potentiality to the human health(European Food Safety Authority, 2006) and environment.). BPA is mainly used in the manufacturing of resins and polycarbonate plastics. There is chance of entering the BPA into water bodies while manufacturing plastic products, leaching from plastic products, disposed at the landfill sites .

  4. PRODUCTION of BISPHENOL-A Fig. 1.1: Synthesis of Bisphenol A Figure 1.2 Reaction of Biphenol-A with diphenyl carbonate

  5. Bisphenol-A • Synonyms:4,4'-(propane-2,2-diyl)diphenol; Bisphenol-A (BPA) • p,p'-isopropylidenebisphenol,or 2,2-bis(4-hydroxyphenyl)propane • Table : Physicochemical Properties Bisphenol-A

  6. MAJOR ISSUES OF BISPHENOL-A ON HUMAN HEALTH Figure 1.4 & 1.5 effects of BPA found & Effcets of BPA yet to found

  7. DISCHARGE STANDARDS DISCHARGE STANDARDS FOR INDUSTRIAL WASTEWATER The wastewater as well as emissions from any manufacturing complex must adhere to the standards set by regulatory authorities. In India, these standards are set by the Central Pollution Control Board (CPCB) under the guidance of Ministry of environment and forest (MOEF). These have been communicated in the form of MINAS (Minimum National Standards) for the discharge of pollutant from these industries. Various water treatment techniques focused on water treatment to match these standards have been developed.

  8. DISCHARGE STANDARDS Discharge effluent standard for chemical industry [CPCB, 2012]

  9. OBJECTIVE OF THE STUDY • 1. To characterize the Rice husk Ash and GAC before and after adsorption of Bisphenol-A (BPA) by using FTIR, BET Surface Area, SEM, XRD and TGA and Proximate Analysis. • 2. To optimize the process variables such as • a. Initial pH of solution • b. Dose of RHA and GAC • c. Initial concentration of Bisphenol-A • d. Contact time • 3.To study the equilibrium data for removal efficiency of the adsorbent using Freundlich adsorption isotherm, Langmuir adsorption, Tempkin, isotherm models using a non linear regression method.

  10. 4 .To study the adsorption kinetics of BPA-RHA system by using various models such as pseudo first order, pseudo second order 5. Comparative study of low cost RHA with high cost GAC on removal of Bisphenol-A

  11. LITERATURE REVIEW Many natural adsorbents and polymeric adsorbents were used for the removal of BPA from the waste water like chitosan, bark, wood chips, sugarcane, peat, bagasse, rice husks, straw and activated bamboo,polysulphone etc. in this chapter the adsorption studies of various researchers for the removal of BPA using different adsorbents were presented.

  12. ADSORBATE AND ADSORBENTS • Adsorbate: Bisphenol-A was used as an adsorbate Bisphenol-A provided by S.D Fine chemicals Pvt. Ltd., Mumbai, India. • Adsorbent: Rice Husk ash (RHA) was used as adsorbent and obtained from Kanha Chamber Tejgarhi Crossing, University Road,), Meerut,Uttar Pradesh, India.Laboratory grade GAC was supplied by GSE Chemical Testing Laboratory and Allied industry, New Delhi and it was used and adsorbent as procured • The percentage removal (Y) of Bisphenol-A at any time(t) was calculated as: • Adsorption capacity (mg/g) at any time ‘t’ was calculated as

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