Study on Immobilized Algal Cells for Treatment and Recycle of Refinery Wastewater

摘要

Compared to the algal oxidation pond,treatment of wastewater using the immobilized algal cell technology has excellent effect,which not only can effectively avoid the disadvantage of oxidation pond,but can also remarkably improve the efficiency of treating system and the effluent quality.When the treating system operates under an optimal control conditions,such as a 55% loading rate,an illumination intensity of 2500-3500 lux and a hydraulic residence time of 4 hours,the COD and ammonia nitrogen removal can reach 90%.Water after deep treatment can comply with the requirement of the refinery for the quality of recycled water.