RETRACTED ARTICLE: Soybean processing wastewater supported the removal of propyzamide and biochemical accumulation from wastewater by Rhodopseudomonas capsulata

Autor: Yanling Wang, Pan Wu, Zhaobo Chen, Ziqiao Han, Ying Zhang, Yuying Dong, Hongjie Sun, Yubo Cui, Xiaozhen Wu, Wentao Mo, Xuejun Zou
Rok vydání: 2019
Předmět:
Zdroj: Bioprocess and Biosystems Engineering. 42:1375-1384
ISSN: 1615-7605
1615-7591
DOI: 10.1007/s00449-019-02137-2
Popis: Simultaneous (SPW and propyzamide) wastewater treatment and the production of biochemicals by Rhodopseudomonas capsulata (R. capsulata) were investigated with supplement of soybean processing wastewater (SPW). Compared to control group, propyzamide was removed and biochemicals production were enhanced with the supplement of SPW. Propyzamide induced camH gene expression through activating MAPKKKs gene in MAPK signal transduction pathway. The induction of camH gene and CamH occurs after 1 day for R. capsulata. However, lack of organics in original wastewater did not maintain R. capsulata growth for over 1 day. The supplement of SPW provided sufficient carbon source for R. capsulata under three addition dosages. This new method resulted in the mixed (SPW and propyzamide) wastewater treatment and improvement of biochemicals simultaneously, as well as the realization of reutilization of wastewater and R. capsulata as sludge. Meanwhile, high-order nonlinear mathematical model of the relationship between propyzamide removal rate, Xt and Xt/r, was established.
Databáze: OpenAIRE
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