摘要
探讨糖厂酒精车间发酵废液（COD＞4000mg／l）的一种生物处理方法。经石灰絮凝、Z氏培养基系列稀释的400ml糖蜜发酵酒精度水，在一定的光强下通气培养螺旋藻，约两周后可获得最高生物量产量达1g干重／l，叶绿素达3．56mg／l，同时糖分去除率达81％，COD去除率达74．3％。实验表明，螺旋藻在50％稀释度废水中的生理活性与100％Z氏培养基中的十分接近。
A biological treatment method for the wastewater (COD>4000mg/l) from fermented liquor of molasses for alcohol in sugar mill was discussed. Spirulina platensis was cultivated in 400ml wastewater pretreated by lime nocculation and diluted with Zarrouk medium,under illumination of certain light intensity and aeration. The highest yield of Spirulina biomass was obtained at lg dry wt. / 1 after 2 weeks, the concentration of chlorophylla was high up to 3. 56mg/L, meanwhile total sugar removal and total COD removal from medium were obtained at 81. 0% and 74. 3% respectively. It was identified from experiments that the physiological activity of Spirulina in 50% diluted wastewater was very sindlar with that of in 100% Zarrouk medium.
出处
《中国甜菜糖业》
1997年第6期13-16,共4页
China Beet & Sugar
关键词
螺旋藻
糖蜜发酵废水
废水处理
molasses-fermented wastewater
Spirulina
dilution
light intensity
biomass
COD
total sugar
