Black liquor is one of the main by-products of the pretreatment process in bioethanol production from empty oil palm fruit bunches, with a high chemical oxygen demand (COD) and low dissolved oxygen (DO). The effect of FeSO4 as a coagulant and FeSO4-H2O2 for Fenton on the degradation of black liquor was examined. This study also identified the ability of a fungus to decolorize black liquor wastewater after the Fenton process and on original black liquor. One percent ferrous sulfate decolorized 84% of black liquor with a concentration of 30,000 ppm under the coagulation method. By adding H2O2 and FeSO4 through the Fenton process, decolorization of the original black liquor was approximately 52%. Combining Fenton and polyaluminum chloride decolorized black liquor up to 90% in 33 min, whereas Coriolus versicolor decolorized 54% and 75% Fenton-treated black liquor and original black liquor after 15 days, respectively.
CITATION STYLE
Sari, A. A., Kristiani, A., Kurniawan, H. H., & Anggraini, R. I. F. (2017). The potency of fenton-polyaluminum chloride for black liquor treatment. In Sustainable Future for Human Security: Environment and Resources (pp. 71–83). Springer Singapore. https://doi.org/10.1007/978-981-10-5430-3_7
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