Method for treating phenol-containing wastewater using wood chip immobilized Alcaligenes faecalis

Abstract

The invention discloses a method for treating phenol-containing waste water by sawdust immobilized alcaligenes faecalis. The method has the advantages that (1) the immobilized alcaligenes faecalis is easy to culture and has the advantages of simple immobilization process, excellent catalytic degradation effect, resistance to high-concentration phenol-containing waste water with the concentration of phenol up to 3000mg.milligram<-1>, strong phenol decomposition capability and repeated use; (2) the carrier of the immobilized alcaligenes faecalis is sawdust, and modified utilization of the sawdust is realized by a chemical method, so the method improves the treatment efficiency for the phenol-containing waste water by means of microbial degradation, and has a broad development prospect; (3) the immobilized alcaligenes faecalis prepared through taking sawdust as the carrier has excellent elasticity, strong resistance to temperature and pH value, stable degradation property and long half life period; and (4) when used for treating the phenol-containing waste water, the sawdust immobilized alcaligenes faecalis has the advantages of simple process, low running cost, moderate conditions, environmental protection, uneasy loss of thalli, high concentration of microorganism inside the carrier, quick degradation speed, high degradation efficiency and no secondary pollution, and can realize continuous industrial degradation of the phenol-containing waste water at the same time.

Description

technical field

[0001] The invention relates to a method for catalytically degrading phenol-containing wastewater by using microorganisms. Background technique

[0002] Phenol-containing wastewater is a source of water pollution with a wide range of sources, a large quantity, high concentration, and great environmental hazards. It is also one of the key difficulties in water pollution control in my country. Biological degradation of phenol-containing wastewater has the advantages of simple process, mild conditions, environmental friendliness, low treatment cost, and less secondary pollution. Generally 5-500mg·L -1 The phenol-containing wastewater is suitable for biological treatment, but the treatment effect for higher levels of phenol-containing wastewater is not ideal [Sun Min et al., Chinese Journal of Medical Engineering. 2004, 12(3): 93-94; Zhang Jie et al., Sichuan Environment. 2006, 25(1): 8-10]. Free microorganisms can degrade high-concentration phenol-containing ...