Preparation and Characteristics of Media from Waste Tire Powder for Waste Water Treatment

(Journal of the Korean Institute of Chemical Engineers)

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Preparation and Characteristics of Media from Waste Tire Powder for Waste Water Treatment

Kwang-Hee Lim^†, Yong-Jun Jung*, Lee Soon Park** and Kyung-Sok Min*

Dept. of Chemical Engineering, Taegu University, Taegu 705-714, Korea

*Dept. of Environmental Engineering, **Dept. of Polymer Engineering, Kyungpook National University, Kyungpook 702-701, Korea (Received 13 April 2001; accepted 27 July 2001)

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Abstract−For recycling waste-tires the process conditions to prepare the media of waste-tire-powder for the fluidized treat- ment of waste-water were optimized by the analysis of their physical properties. The optimum ratio(w/w) of waste-tire-powder to EVA(ethyl vinyl acetate) binder to prepare waste-tire-powder media turned out to be 4 to 1 and their porosity was 0.74. Var- ious adsorbents were applied to the surface of the prepared media, after which they were used in the treatment of waste-water so that their removal rates of ammonium ion were evaluated under 5 modes of different operating conditions such as temper- ature and C/N ratios and were compared each other. At 20^oC the ammonium ion removal rates of 5 modes were similar regard- less of adsorbents applied to the surface of the prepared media. In the meantime, at 10^oC the ammonium ion removal rates of the media with coconut- or coal-based activated carbon were shown to be higher by more than 1.5 times than those of the media with synthetic calcium silicate.

Key words: Media, Waste-Tire-Powder, Waste-Water Treatment, Adsorbents, Ammonium Ion

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†To whom correspondence should be addressed.

E-mail: khlim@taegu.ac.kr

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Table 2. The composition of synthetic waste water

Major component Mode 1/Mode 3 Mode 2/Mode 4 Mode 5 Saccharide

NH₄Cl KH₂PO₄

20 mg/L 40 mg/L 15 mg/L

20 mg/L 80 mg/L 15 mg/L

80 mg/L 40 mg/L 15 mg/L

*Other minor components: MgSO₄¸ 7H2O-3.75 g/75 L, CaCl₂-1.1325 g/75 L, NaCl-3.75 g/75 L, FeCl₃¸ 6H2O-0.0281 g/75 L, MnSO₄¸ H2O-0.00285 g/75 L, ZnSO₄¸ 7H2O-0.00263 g/75 L

Table 3. Operating conditions of each mode used in the experiments

Mode 1 2 3 4 5

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Table 4. Characteristics of the adsorbents used in the preparation of waste-tire-media

CEL-E CEL-C C-209 C-281 Coal Coconut

MESH(%) +325(6) +325(4) +325(0.5) +325(1.5) +150(1.0) +150(1.0)

BET(m²/g) 120 175 10-20 2 962 1107

Moisture(%) 5.5 8.0 6.0 1.48 4.0 3.0

Component(%) CaO(32), SiO₂(17) CaO(27), SiO₂(50) CaO(0.5), SiO₂(86.7) CaO(0.5), SiO₂(89.6) CaO(8.9) CaO(2.1)

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Fig. 8. Volumetric ammonium removal rate of various waste-tire-media with the change of C/N ratio(0.25 and 0.5) and ambient temper- ature(20^oC and 10^oC).

Fig. 9. Volumetric ammonium removal rate of various waste-tire-media with the change of C/N ratio(0.25, 0.5 and 2) at 10^oC.

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1. Korea Resources Recovery and Reutilization Cooperation, “Waste Recycling Statistics(II): the Current Status on the Generation of Waste Tire and Its Recycling,”(1999).

2. Choung, Y.-K.: KOSEF Report, 853-1304-004-1(1985).

3. Lee, T. J., Kweon, O.-Y. and An, S. J.: J. of KSEE, 22, 16101(2000).

4. Stanley, J. T.: “Bergey’s Manual of Systematic Bacteriology,” 3, 1842 (1989).

5. Park, J. W., Roh, H. S., Kim, J. K. and Joe, Y. I.: Journal of the Korea Institute of Rubber Industry, 32, 325(1997).

6. Japan Water Works Association, “Sewage Analysis Method I,” (1997).

7. Sharma, B. and Ahlert, R. C.: Wat. Res., 11, 897(1977).

8. Kim, Y.-H., Cho, J.-H., Kim, M.-H. and Lee, Y.-W.: J. of KSEE, 19, 415(1997).

9. Cho, J.-H., Kim, Y.-H., Lee, Y.-W. and Lee, W.-K.: J. of KSEE, 20, 443(1998).

10. Park, Y.-S., Suh, J.-H. and Song, S.-K.: J. of the Korean Environ- mental Science Society, 6, 689(1997).

11. Pedersen, K.: Water Res., 24, 239(1990).

12. Chung, J.-C.: J. of KSEE, 16, 589(1994).

13. Hashiki, K. and Furukawa, S.: Proc. of the 22nd Symposium on Sew- erage and Sewage Treatment, Jun., Fukuoka, 259(1985).

14. Dubinin, M. M.: CARBON, 18, 355(1980).

15. Park, D. W., Jung, J. Y. and Jung, Y. C: ENVIRON. ENG. RES., 1, 37 (1996).