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Lim, Hankwon
Sustainable Process Analysis, Design, and Engineering (SPADE)
Research Interests
  • Process analysis, Process design, Techno-economic analysis, Separation process, Reaction engineering, Computational fluid dynamics, Membrane reactor, H2 energy, Water electrolysis, Vanadium redox flow battery, Greenhouse gas reduction

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Economic and environmental sustainability for anaerobic biological treatment of wastewater from paper and cardboard manufacturing industry

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Title
Economic and environmental sustainability for anaerobic biological treatment of wastewater from paper and cardboard manufacturing industry
Author
Tawfik, AhmedBakr, Marwa H.Nasr, MahmoudHaider, JunaidAl Mesfer, Mohammed K.Lim, HankwonQyyum, Muhammad AbdulLam, Su Shiung
Issue Date
2022-02
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
CHEMOSPHERE, v.289, pp.133166
Abstract
The sustainable application of an up-flow anaerobic baffled reactor (UABR) to treat real paper and cardboard industrial effluent (PCIE) containing bronopol (2-bromo-2-nitropropan-1, 3-diol) was investigated. At a hydraulic retention time (HRT) of 11.7 h and a bronopol concentration of 7.0 mg L-1, the removal efficiencies of total chemical oxygen demand (CODtotal), CODsoluble, CODparticulate, total suspended solids (TSS), volatile suspended solids (VSS), carbohydrates, and proteins were 55.3 +/- 5.2%, 26.8 +/- 2.3%, 94.4 +/- 4.6%, 89.4 +/- 2.6%, 84.5 +/- 3.2%, 72.1 +/- 1.8%, and 22.4 +/- 1.8%, respectively. The conversion of complex organics (e.g., carbohydrates and proteins) into bio-methane (CH4) was assisted via enzyme activities of, in U (100 mL)(-1), alpha-amylase (224-270), alpha-xylanase (171-188), carboxymethyl cellulase (CM-cellulase) (146-187), polygalacturonase (56-126), and protease (67,000-75300). The acidogenic condition was dominant at a short HRT of 2.9 h, where methane yield dropped by 32.5%. Under this condition, the growth of methanogenic bacteria could be inhibited by volatile fatty acids (VFA) accumulation. The analysis of Fourier-transform infrared (FTIR) spectra detected peaks relevant to methylene and nitro groups in the sludge samples, suggesting that entrapment/adsorption by the sludge bed could be a major mechanism for removing bronopol. The economic feasibility of UABR, as proposed to receive 100 m(3) d(-1) of PCIE, showed a payback period (profits from environmental benefits, biogas recovery, and carbon credit) of 7.6 yr. The study outcomes showed a high connection to the environmental-, economic-, and social related sustainable development goals (SDGs).
URI
https://scholarworks.unist.ac.kr/handle/201301/56877
URL
https://www.sciencedirect.com/science/article/pii/S0045653521036389?via%3Dihub
DOI
10.1016/j.chemosphere.2021.133166
ISSN
0045-6535
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