A Study on Preparation of Nano Iron Oxides-Based Metal Biochar Using Co-Pyrolysis in a CO2 Environment and Adsorption of Cr(VI)

Jeong-Yun Jang and Sun Joon Kim

doi:10.32390/ksmer.2022.59.2.127

All Issue

2022 Vol.59, Issue 2 Next Page

Research Paper

A Study on Preparation of Nano Iron Oxides-Based Metal Biochar Using Co-Pyrolysis in a CO₂ Environment and Adsorption of Cr(VI) 이산화탄소 환경 내 공동 열분해를 통한 나노 철 산화물 기반 금속 바이오차 제조 및 Cr(VI) 흡착 연구

30 April 2022. pp. 127-136

PDF XML

Abstract

본 연구는 이산화탄소 환경에서 금속 나노 철 산화물(NIO)과 커피찌꺼기(CG)의 혼합 열분해 공정에 대한 합성 가스(H₂ & CO) 생성에 미치는 영향 및 제조된 금속 바이오차(NICG1)의 수용액 내 6가 크롬 제거에 대해 조사하였다. 650°C에서 CG의 단독 열분해는 0.37 mole% H₂와 0.28 mole% CO의 합성 가스 생성을 보였고, NIO를 첨가한 공동 열분해를 통해 합성 가스의 생성량이 증가하였으며, NICG1의 동일한 온도에서 측정된 H₂ 및 CO 농도는 0.99, 0.86 mole%였다. 흡착 실험 결과, NICG1은 pH 2의 산성조건에서 가장 높은 제거 효율을 보였으며 유사 2차 속도 모델에 의한 6가 크롬 제거에 적합하다는 것을 보여주었다. 또한 NICG1을 사용한 6가 크롬 제거는 Freundlich Isothernm 흡착 모델(R²=0.9807)에 더 적합하였다. 결론적으로 폐자원인 커피찌꺼기와 나노 철 산화물의 co-pyrolysis를 통해 연료자원인 합성 가스(H₂와 CO)와 흡착제인 금속 바이오차를 동시에 생성할 수 있어 커피찌거기의 활용에 대한 높은 평가를 받을 수 있다.

키워드

커피찌꺼기

나노 철 산화물

공동 열분해

합성 가스

6가 크롬

This study explored the effects of blending nano iron (III) oxides (NIO) with coffee grounds (CG) in a pyrolytic process under a CO₂ environment on the generation of syngas (H₂ and CO) and biochar properties regarding the removal of Cr(VI) from aqueous solutions. CG and NIO were physically mixed; CG was mass maintained at 1 g while NIO was added. Based on the mass ratio, the resulting solution was named NICG1(NIO/CG ratio=1:1). Compared with the generation amounts of syngas (0.37 mole% H₂ & 0.28 mole% CO) at 650°C from single pyrolysis of CG, co-pyrolysis with NIO-based additives resulted in increased production of syngas, with the measured concentrations of H₂ and CO reaching 0.99 mole% and 0.86 mole% at the same temperature, respectively. During the pH effect experiments, NICG1 demonstrated the highest removal efficiency under acidic conditions with pH = 2. Adsorption kinetic experiments demonstrated that the pseudo-second-order rate model was suitable for assessing the removal of Cr(VI) by NICG1. Furthermore, the removal of Cr(VI) using NICG1 fitted well with the Freundlich isothernm adsorption model (R²= 0.9807). In conclusion, co-pyrolysis of blending nano iron(III) oxide and coffee grounds can be considered an efficient resource for simultaneously producing syngas (H₂ and CO) as a fuel (energy resource) and metal-biochar as an adsorbent.

Keywords

Coffee grounds

nano iron oxides

co-pyrolysis

syngas

Cr(VI)

References

Amjed, M.A., Wu, X.G., Ali, I., Naz, I., Dai, M., Tehrim, A., Niaz, W., Javaid, S.F., and Peng, C.S., 2021, Surface decoration and characterization of solar driven biochar for the removal of toxic aromatic pollutant, Journal of Chemical Technology and Biotechnology, 96, p.2310-2324. 10.1002/jctb.6759

Arora, S., Jung, J., Liu, M., Li, X., Goel, A., Chen, J.L., Song, S., Anderson, C., Chen, D.X. Leong, K., Lim, S.H., Fong, S.L., Ghosh, S., Lin, A., Kua, H.W., Tan, H.T.W., Dai, Y.J., and Wang, C.H., 2021, Gasification biochar from horticultural waste: An exemplar of the circular economy in Singapore, Science of the Total Environment, 781. 146573p. 10.1016/j.scitotenv.2021.14657333798876

Audry, S., Schafer, J., Blanc, G., and Jouanneau, J.M., 2004, Fifty-year sedimentary record of heavy metal pollution (Cd, Zn, Cu, Pb) in the Lot River reservoirs (France), Environmental Pollution, 132, p.413-426. 10.1016/j.envpol.2004.05.02515325457

Chandra Sekhar, K., Chary, N.S., Kamala, C.T., Suman Raj, D.S., and Sreenivasa Rao, A., 2004, Fractionation studies and bioaccumulation of sediment-bound heavy metals in Kolleru lake by edible fish, Environment International, 29, p.1001-8. 10.1016/S0160-4120(03)00094-1

Chen, X.C., Chen, G.C., Chen, L.G., Chen, Y.X., Lehmann, J., McBride, M.B., and Hay, A.G., 2011, Adsorption of copper and zinc by biochars produced from pyrolysis of hardwood and corn straw in aqueous solution, Bioresource Technology, 102, p.8877-8884. 10.1016/j.biortech.2011.06.07821764299

Cho, S.H., Jung, S., Park, Y.K., Lin, K.Y.A., Chen, W.H., Tsang, Y.F., and Kwon, E.E., 2021, Biofuel Production as an Example of Virtuous Valorization of Swine Manure, Acs Sustainable Chemistry & Engineering, 9, p.13761-13772. 10.1021/acssuschemeng.1c04382

Choi, J. Y.,Jung, Y. J. and Lee, W. J., 2008, Fe(II)-initiated reduction of hexavalent chromium in heterogeneous iron oxide suspension, Korean Journal of Chemical Engineering, 25(4), p.764-769 10.1007/s11814-008-0125-z

Jarup, L., 2003, Hazards of heavy metal contamination, British Medical Bulletin, 68, p.167-82. 10.1093/bmb/ldg03214757716

Kwon, G., Cho, D.W., Yoon, K., and Song, H., 2021, Valorization of plastics and goethite into iron-carbon composite as persulfate activator for amaranth oxidation, Chemical Engineering Journal, 407. p.127188 10.1016/j.cej.2020.127188

Lee, S., Jung, S., Lin, K.Y.A., Tsang, Y.F., and Kwon, E.E., 2021, Use of CO₂ and nylon as the raw materials for flammable gas production through a catalytic thermo-chemical process, Green Chemistry, 23, p.8922-8931. 10.1039/D1GC02540F

Li, Y., Wei, Y.N., Huang, S.Q., Liu, X.S., Jin, Z.H., Zhang, M., Qu, J.J., and Jin, Y., 2018, Biosorption of Cr(VI) onto Auricularia auricula dreg biochar modified by cationic surfactant: Characteristics and mechanism, Journal of Molecular Liquids, 269, p.824-832. 10.1016/j.molliq.2018.08.060

Liu, S.S., Wu, G., Gao, Y., Li, B., Feng, Y., Zhou, J.B., Hu, X., Huang, Y., Zhang, S., and Zhang, H., 2021, Understanding the catalytic upgrading of bio-oil from pine pyrolysis over CO₂-activated biochar, Renewable Energy, 174, p.538-546. 10.1016/j.renene.2021.04.085

Molday, R.S. and Molday, L.L., 1984, Separation of Cells Labeled with Immunospecific Iron Dextran Microspheres Using High-Gradient Magnetic Chromatography, Febs Letters, 170, p.232-238. 10.1016/0014-5793(84)81319-8

Park, J.H., Choppala, G.K., Bolan, N.S., Chung, J.W., and Chuasavathi, T., 2011, Biochar reduces the bioavailability and phytotoxicity of heavy metals, Plant and Soil, 348, p.439-451. 10.1007/s11104-011-0948-y

Qi, W.F., Zhao, Y.X., Zheng, X.Y., Ji, M., and Zhang, Z.Y., 2016, Adsorption behavior and mechanism of Cr(VI) using Sakura waste from aqueous solution, Applied Surface Science, 360, p.470-476. 10.1016/j.apsusc.2015.10.088

Rahman, M.A., Lamb, D., Rahman, M.M., Bahar, M.M., x Sanderson, M.M., Abbasi, S., M.F. Bari, A.S., and Naidu, R., 2021, Removal of arsenate from contaminated waters by novel zirconium and zirconium-iron modified biochar, Journal of Hazardous Materials, 409 p.124488. 10.1016/j.jhazmat.2020.12448833246815

Song, H., Tsang, D.C.W., Kwon, G., Kwon, E.E., and Cho, D.W., 2019, Coupling carbon dioxide and magnetite for the enhanced thermolysis of polyvinyl chloride, Science of the Total Environment, 696 p.133951. 10.1016/j.scitotenv.2019.133951

Su, M., Fang, Y.L., Li, B., Yin, W.Z., Gu, J.J., Liang, H., Li, P., and Wu, J.H., 2019, Enhanced hexavalent chromium removal by activated carbon modified with micro-sized goethite using a facile impregnation method, Science of the Total Environment, 647, p.47-56. 10.1016/j.scitotenv.2018.07.37230077854

Treybal, R.E., 1980, Mass-transfer operations. New York: McGraw-Hill.

Wan, S.L., Lin, J.D., Tao, W.X., Yang, Y., Li, Y., and He, F., 2019, Enhanced Fluoride Removal from Water by Nanoporous Biochar-Supported Magnesium Oxide, Industrial & Engineering Chemistry Research, 58, p.9988-9996. 10.1021/acs.iecr.9b01368

Wan, S.L., Qiu, L., Li, Y., Sun, J.J., Gao, B., He, F., and Wan, W.B., 2020, Accelerated antimony and copper removal by manganese oxide embedded in biochar with enlarged pore structure, Chemical Engineering Journal, 402 p.126021. 10.1016/j.cej.2020.126021

Xu, F., Xing, X.X., Gao, S.F., Zhang, W.Q., Zhu, L., Wang, Y.F., Chen, J.B.A., Chen, H.J., and Zhu, Y.Z., 2021, Direct chemical looping gasification of pine sawdust using Fe2O3-rich sludge ash as an oxygen carrier: Thermal conversion characteristics, product distributions, and gasification performances, Fuel, 304 p.121499. 10.1016/j.fuel.2021.121499

Yoon, K., Cho, D.W., Bhatnagar, A., and Song, H., 2020, Adsorption of As(V) and Ni(II) by Fe-Biochar composite fabricated by co-pyrolysis of orange peel and red mud, Environmental Research, 188 p.109809. 10.1016/j.envres.2020.10980932563749

Yoon, K., Lee, S.S., Ok, Y.S., Kwon, E.E., and Song, H., 2019, Enhancement of syngas for H-2 production via catalytic pyrolysis of orange peel using CO₂ and bauxite residue, Applied Energy, 254 p.113803. 10.1016/j.apenergy.2019.113803

Zhang, W.H., Mao, S.Y., Chen, H., Huang, L., and Qiu, R.L., 2013, Pb(II) and Cr(VI) sorption by biochars pyrolyzed from the municipal wastewater sludge under different heating conditions, Bioresource Technology, 147, p.545-552. 10.1016/j.biortech.2013.08.08224013292

Zhang, X., Lv, L., Qin, Y.Z., Xu, M., Jia, X.B., and Chen, Z.H., 2018b, Removal of aqueous Cr(VI) by a magnetic biochar derived from Melia azedarach wood, Bioresource Technology, 256, p.1-10. 10.1016/j.biortech.2018.01.14529427861

Zhang, X., W. Fu, J., Yin, Y.X., Chen, Z.H., Qiu, R.L., Simonnot, M.O., and Wang, X.F., 2018a, Adsorption-reduction removal of Cr(VI) by tobacco petiole pyrolytic biochar: Batch experiment, kinetic and mechanism studies, Bioresource Technology, 268, p.149-157. 10.1016/j.biortech.2018.07.12530077171

Zhou, L., Liu, Y.G., Liu, S.B., Yin, Y.C., Zeng, G.M., Tan, X.F., Hu, X., Hu, X.J., Jiang, L.H., Ding, Y., Liu S.H., and Huang, X.X., 2016, Investigation of the adsorption-reduction mechanisms of hexavalent chromium by ramie biochars of different pyrolytic temperatures, Bioresource Technology, 218, p.351-359. 10.1016/j.biortech.2016.06.10227376834

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 59
No :2
Pages :127-136
Received Date :2022. 04. 05
Revised Date :2022. 04. 21
Accepted Date : 2022. 04. 26
DOI :https://doi.org/10.32390/ksmer.2022.59.2.127

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

All Issue