光合细菌对棉秆机械浆废液的转化条件研究

Photosynthetic Bacteria Transforming Conditions of Cotton Stalk Mechanical Pulp Wastewater

造纸过程中产生的棉浆废液是较难降解的高浓度有机废水,但利用其作为培养光合细菌的基质,生产有益微生物制剂,可实现循环经济。本文通过实验,稀释5倍的棉浆废液,当初始pH为7.0,培养温度为30℃时,最有利于光合细菌的生长。5%的接种量,培养16h可使光合细菌达到较大密度;利用热风循环烘干箱,可实现光合细菌液的固定化,载体与菌体质量之比为1.5∶1。

Cotton pulp wastewater was high concentration organic wastewater and difficult degradation.Using it as a microbial culturephotosynthetic bacteria and beneficialmicrobial agents,could realize the circular economy.Through the experiment,cotton pulp wastewaterdiluted5times,initial pH=7,temperature30℃was most conducive to the growth of photosynthetic bacteria.Inoculation5%,16h of culturecould make the photosynthetic bacteria reach the higher density.Using hot air circulation drying box,immobilized photosyntheticbacteria liquid could be realized,carrier,and the biomass mass ratio was1.5:1.