Bacillus foecalis alkaligenes and method for catalysis degradation of phynol wastewater

Abstract

The invention discloses a microbial strain which can effectively degrade phenol and relates to alcaligenes faecalis JH1013 CCTCC NO: M 208006 and a method for degrading phenol wastewater by using a fixed alcaligenes faecalis that is produced by alcaligenes faecalis. The method has the following advantages that: 1. the alcaligenes faecalis is easy to culture, the fixing technique is simple, the catalytic degradation effect is good, the high-concentration phenol can be resistance, the phenol degradation capacity is strong, which can high efficiently degrade the phenol wastewater with the concentration of as high as 2000mg. L<-1> and be used repeatedly; 2. hydrotalcite, hydrotalcite-like compounds, nano calcium carbonate, Gamma-Al2O3 or the loading solid base are used as carriers for preparing the fixed alcaligenes faecalis, the elasticity is good, the temperature and pH value resistances are strong, the mechanical strength is high, the degradation performance is stable and the half-time is long; 3. the carriers of the hydrotalcite, the hydrotalcite-like compounds, the nano calcium carbonate and the Gamma-Al2O3 of the fixed cell can be used repeatedly by calcinations; 4. the fixed alcaligenes faecalis is used for degrading the phenol, the degradation process is simple, the conditions are moderate, the environment is friendly, the bacterial cells are difficult to loss, the concentration of the microorganisms in the carriers is high, the degradation speed is fast, the degradation efficiency is high and the secondary pollution is not easy to be caused.

Description

technical field [0001] The invention relates to a method for catalytically degrading phenol wastewater by using microorganisms Background technique [0002] Phenol is one of the main pollutants in petrochemical, papermaking, coking and textile industrial wastewater, and many countries have listed it as a key pollutant for control. Biological degradation of phenol wastewater has the advantages of simple process, mild conditions, environmental friendliness, low treatment cost, and less secondary pollution. Generally believed to contain phenol 5-500mg·L -1 The wastewater is suitable for biological treatment, but the treatment effect for higher phenol-containing wastewater is not ideal [Zhang Jie et al., Sichuan Environment. 2006, 25(1): 8-10; Sun Min et al., Chinese Journal of Medical Engineering .2004, 12(3):93-94]. Free microorganisms can also degrade high-concentration phenol wastewater (1000-2000mg L -1 )[Gong Bin et al., Journal of Environmental Science. 2006, 37(6): 2...

AI Technical Summary

Problems solved by technology

Generally believed to contain phenol 5-500mg·L -1 The wastewater is suitable for biological treatment, but the treatment effect for higher phenol-containing wastewater is not ideal [Zhang Jie et al., Sichuan Environment. 2006, 25(1): 8-10; Sun Min et al., Chinese Journal of Medical Engineering .2004, 12(3):93-94]

Free microorganisms can also degrade high-concentration phenol wastewater (1000-2000mg L -1 )[Gong Bin et al., Journal of Environmental Science. 2006, 37(6): 2008-2012; Yang Suliang, Chemical Industry and Engineering. 2006, 23(4): 287-290; CN1500802 Phenol Hydroxylase Gene and Its Application] , but there are deficiencies such as easy loss of bacteria, low microbial concentration, slow reaction speed, large amount of sludge, easy to cause secondary pollution, and large floor area.