Dayı Bugra, Onac Canan, Kaya Ahmet, Akdogan Hatice Ardag, Rodriguez-Couto Susana
Department of Chemistry, Pamukkale University, 20020 Denizli, Turkey.
Ceit, Paseo Manuel de Lardizábal 15, 20018 San Sebastian, Spain.
ACS Omega. 2020 Apr 27;5(17):9813-9819. doi: 10.1021/acsomega.9b04433. eCollection 2020 May 5.
In traditional separation processes, there are environmental risks still because of the presence of toxic agents. Thus, a novel biomembrane microreactor named eco-green biomembrane (EgBM) was developed to perform the transport, biodegradation, and cleaning of a textile dye aqueous solution (3 mg/L) from the donor (., textile dye) to the acceptor (., laccase enzymes) phases. In the present work, pellets were used as carriers and degraders instead of using the traditional chemical carriers. The optimized EgBM was made of cellulose triacetate (16.1%) as a base polymer, 2-nitrophenyl octyl ether (25.2%) as a plasticizer, and fungus pellets (58.7%) as both carriers and degraders. A decoloration percentage of 98.6% ± 0.8 in 60 h was attained, which was due to two mechanisms: biosorption (15.4% ± 0.1) on fungal mycelium and biodegradation (83.2% ± 0.6) by laccase enzymes. The EgBM was achieved not only by the transport of reactive textile dyes used in the donor phase but also by the biodegradation and biosorption of the dyes.
在传统分离过程中，由于有毒物质的存在，仍然存在环境风险。因此，开发了一种名为生态绿色生物膜（EgBM）的新型生物膜微反应器，用于实现纺织染料水溶液（3毫克/升）从供体（即纺织染料）相到受体（即漆酶）相的运输、生物降解和净化。在本研究中，使用菌球作为载体和降解剂，而不是传统的化学载体。优化后的EgBM由三醋酸纤维素（16.1%）作为基础聚合物、2-硝基苯基辛基醚（25.2%）作为增塑剂以及菌球（58.7%）作为载体和降解剂组成。在60小时内实现了98.6%±0.8的脱色率，这归因于两种机制：真菌菌丝体上的生物吸附（15.4%±0.1）和漆酶的生物降解（83.2%±0.6）。EgBM不仅通过供体相中使用的活性纺织染料的运输来实现，还通过染料的生物降解和生物吸附来实现。
