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DOI: https://doi.org/10.4491/eer.2020.254
The performance of wastewater treatment by two-species immobilized lignin-degrading mycelial pellet GX-1310
Gaijuan GUO, Wei GUO, Xia DU, Qie FENG, Jinda LI, and Hong YAN
College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin, China
Corresponding Author: Hong YAN ,Tel: +86-451-86392720 , Fax: +86-451-86392708, Email: 1449897310@qq.com
Received: May 21, 2020;  Accepted: September 6, 2020.
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ABSTRACT
This study found a new type of immobilized mycelial pellet GX-1310, which can better treat industrial wastewater. Among them, Aspergillus fumigatus G-13 (degradable lignin) was combined with Bacillus cereus X10-1-2 (having the ability to produce cellulase), and the two synergistically produce strong degradation ability. Taking combined mycelial pellet as the research object, its ability to treat papermaking wastewater, heavy metal wastewater and dye wastewater was investigated. The combined mycelial pellet was superior to the single fungal mycelium in the degradation of lignocellulose, removal of heavy metal ions and adsorption capacity of dyes. And the combined mycelial pellet has a wide range of application conditions (temperature range 28-34 °C and pH range 4-8), which can maintain high processing capacity for papermaking wastewater, heavy metal wastewater and dye wastewater. After three batches of wastewater treatment, the combined mycelial pellet still maintains high activity and can continuously treat wastewater. The study fixed the single fungal mycelium together with cellulose-degrading bacteria, the strains producing different enzymes were combined to form a multi-functional combined mycelial pellet. This method provides a new way for industrial wastewater treatment.
Keywords: Dye | Heavy metal ions | Immobilized mycelial pellet | Lignin | Wastewater treatment
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