FERTILIZER WASTE TREATMENT USING KAOLIN CLAY.pptx

KAOLIN CLAY IS USEFUL FOR TREATMENT OF FERTILIZER WASTE

1. FERTILIZER WASTE EFFLUENT TREATMENT USING KAOLIN CLAY

2. PRESENTATION OUTLINE BACKGROUND OF THE STUDY STATEMENT OF PROBLEM AIM AND OBJECTIVES OF THE STUDY SIGNIFICANCE OF THE STUDY SCOPE OF THE STUDY RELATED WORK METHODOLOGY RESULTS AND DISCUSSION CONCLUSION REFERENCES

3. BACKGROUND OF THE STUDY Definition of Effluent Wastewater Treatment methods kaolin Clay Absorbent Importance of Kaolin Clay Absorbent

4. STATEMENT OF THE PROBLEM High toxic nature of effluent from chemical fertilizer industries. Fertilizer waste water are hardly biodegradable. Fertilizer effluents are harmful to the ecosystem leading to the day by day deterioration of the ecosystem.

5. AIM AND OBJECTIVES OF THE STUDY The aim of this study is to investigate the removal of heavy metals such as chromium (Cr) from chemical fertilizer waste water using kaolin clay. This aim will be carried out through the following objectives; To modify the kaolin clay via beneficiation and calcination. To characterize the physical and chemical properties of the treated fertilizer waste water. To determine the metal ion uptake from fertilizer waste water using batch process.

6. SIGNIFICANCE OF THE STUDY Inexpensive, efficient and promising approach to the treatment of fertilizer effluent. To provide a more ecofriendly method of chemical fertilizer waste water treatment. To proffer solution to problems associated with the cost of fertilizer waste water treatment.

7. SCOPE OF THE STUDY Though chemical fertilizer waste water contains many other pollutants such as alcohol, ammonia, suspended solids, nitrates, phosphorus, large amounts of BOD and COD and other organic matter, but this work will be limited to the removal of heavy metals such as chromium.

8. RELATED WORK S/N TITLE FEATURES 1 Removal of Nickel from Aqueous Solution by low cost Clay Adsorbent (Al- Mahwes clay sample and Khulias clay deposit) The adsorption data followed Langmuir and Freundlich isotherm data and correlation coefficients (R 2 ) ranged from 0.90 to 0.99. Column studies results showed that 92-99% of the added Ni was retained in the top soil layer (0-5 cm). 2 Isotherm Studies of lead(II) , manganese(II) and cadmium(II) adsorption by Nigerian Bentonite Clay in a single and multimetal solutions The natural bentonite exhibits a specific surface area of 23.5m 2 /g and a CEC value of 47.7 mEq /100g and displays a higher adsorption capacity of all heavy metals in single and multimetal solution than the calcined bentonie . The order of selectivity is lead(II) > cadmium(II) > manganese(II) . Results also shows that both clays demonstate a preferable adsorption towards lead(II) The adsorption data followed Langmuir model

9. METHODOLOGY

10. RESULTS AND DISCUSSION X-RAY FLUORESCENCE ANALYSIS (XRF) Chemical Composition ( wt %) Sample SiO 2 Al 2 O 3 Fe 2 O 3 Na 2 O MgO TiO 2 K 2 O CaO P 2 O 5 ZnO MnO SO 3 NK 52.38 25.71 4.72 2.24 1.92 0.88 0.83 0.18 0.07 0.04 0.02 0.02 CK 51.68 26.41 4.38 2.20 1.70 0.94 0.61 0.17 0.06 0.03 0.05 0.03 NK, Natural kaolin, CK, Calcined Kaolin

11. BRUNAUER-EMMET TELLER (BET) SURFACE AREA ANALYSIS Parameters/ Adsorbent Surface area (m 2 g −1 ) Pore volume (cm 3 g −1 ) Pore Diameter (nm) Unmodified 7.0836 0.1129 44.197 Modified 9.8836 0.0927 40.697

12. SCANNING ELECTRON MICROGRAPH OF MODIFIED KAOLIN CLAY Scanning electron micrograph of unmodified kaolin clay Scanning electron micrograph of modified kaolin clay

13. EFFECT OF INITIAL METAL ION CONCENTRATION Initial metal Ion Concentration (mg/L) Initial metal Ion Composition (ppm) Final metal Ion Composition for modified (ppm) Final metal Ion Composition for unmodified (ppm) Removal Efficiency for modified (%) Removal Efficiency for unmodified (%) 10 0.41 0.05 0.12 87.80 70.73 20 0.38 0.05 0.10 86.84 73.68 30 0.26 0.04 0.11 84.62 57.69 40 0.23 0.02 0.05 91.30 78.26 50 0.18 0.04 0.09 77.78 50.00

14. EFFECT OF CONTACT TIME Initial metal Ion Concentration (mg/L) Initial metal Ion Composition (ppm) Contact Time (minutes) Final metal Ion Composition for modified (ppm) Final metal Ion Composition for unmodified (ppm) Removal Efficiency for modified (%) Removal Efficiency for unmodified (%) 10 0.41 15 0.17 0.25 55.26 32.21 20 0.38 30 0.15 0.21 60.53 44.74 30 0.26 45 0.14 0.20 63.16 47.37 40 0.23 60 0.09 0.16 76.32 57.89 50 0.18 75 0.11 0.18 71.05 52.63

15. ADSORPTION ISOTHERMS USING LINEAR MODELS Sample Langmuir Freundlich   q m (mg/g) b (l/mg) R 2 (%) n (L/mg) K f (mg/g).(L/mg) 1/n R 2 (%) Modified kaolin clay 0.19 -119.89 0.9573 -3.46 0.096 0.7188 Unmodified kaolin clay 0.11 -34.80 0.8635 -0.73 0.008 0.6189

16. ADSORPTION KINETICS USING LINEAR MODELS Sample Pseudo first order Pseudo second order   q e (mg/g) K 1 (min -1 ) R 2 (%) q e (mg/g) K 2 (min -1 ) R 2 (%) Modified kaolin clay 0.03 -0.02 0.8555 0.09 -1.18 0.9317 Unmodified kaolin clay 0.11 0.02 0.4336 0.16 -0.98 0.9778

17. ADSORPTION ISOTHERMS USING NON-LINEAR MODELS Sample Langmuir Freundlich   q m (mg/g) b (l/mg) R 2 (%) n (L/mg) K f (mg/g).(L/mg) 1/n R 2 (%) Modified kaolin clay 82.59 0.03 0.9196 13635.94 0.32 0.8298 Unmodified kaolin clay 2.05 0.59 0.9724 92287.59 0.19 0.9731

18. ADSORPTION KINETICS USING NON-LINEAR MODELS Sample Pseudo first order Pseudo second order   q e (mg/g) K 1 (min -1 ) R 2 (%) q e (mg/g) K 2 (min -1 ) R 2 (%) Modified kaolin clay 0.132 1.07 0.8103 0.132003 138083.9 0.9317 Unmodified kaolin clay 0.127 1.07 0.8931 0.200000 138084.16 0.9631

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