自然光照下补光策略对Chlamydomonas sp.JSC4生物膜除污固碳的影响  

The effect of light supplementing strategy on pollution removal and carbon sequestration of Chlamydomonas sp.JSC4biofilm under sunlight

作　　者：王莎 张华[3] 程海翔 Wang Sha;Zhang Hua;Cheng Haixiang(Intelligent Manufacturing College,Changzhou Vocational Institute of Engineering,Changzhou 213164,China;College of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350108,China;Mechanical and Eletrical Engineering Institute,Quzhou College of Technology,Quzhou 324000,China;College of Chemical and Material Engineering,Quzhou University,Quzhou 324000,China)

机构地区：[1]常州工程职业技术学院智能制造学院,江苏常州213164 [2]福州大学机械工程及自动化学院,福建福州350108 [3]衢州职业技术学院机电工程学院,浙江衢州324000 [4]衢州学院化学与材料工程学院,浙江衢州324000

出　　处：《可再生能源》2022年第6期743-750,共8页Renewable Energy Resources

基　　金：国家自然科学基金项目(32071626);国家自然科学基金青年基金项目(42007309);衢州市指导性科技攻关项目(2021055)。

摘　　要：为解决微藻生物膜系统运行成本高、传质效率低、野外放大培养不可控因素多的问题,文章针对冬季室外自然光照时数不足的情况,设计了一种封闭式旋转盘光生物反应器,探究室内LED光照下培养液体积大小和室外自然光照下LED补光时间对衣藻Chlamydomonas sp.JSC4生物膜产率、固碳率、生物燃料生产、废水处理和光合效率的影响。结果显示,在培养体积为1.5 L及补光7 h(光周期为16∶8)的条件下,可获得最大生物膜产率、固碳率和蛋白质、碳水化合物产率,分别为(69.77±1.17),(130.12±2.19),(29.87±0.50),(27.48±1.24)g/(m^(2)·d),总氮(TN)和总磷(TP)的去除分别达到(98.85±0.80)%和(98.35±0.14)%,同时光合效率高达11.80%。研究表明,该生物膜系统能耗低,运行稳定,补光策略促进了生物膜生长、除污固碳效果。In order to settle the problems of the microalgae biofilm system, such as high operating cost, low mass transfer efficiency, and many uncontrollable factors in field amplification culture,a new type of closed rotating disk photobioreactor was designed to solve the problem of insufficient light time in outdoor sunlight environment in winter. The effects of culture medium volume under indoor LED light and the light supplement time under outdoor sunlight on the yield of microalgae biofilm,carbonation ratio, biofuel production, wastewater treatment and photosynthesis efficiency were investigated. The results showed that the maximum biofilm yield, carbonation ratio, and carbohydrate yield could be obtained under the conditions of 1.5 L and 7 h light supplement time,which were(69.77±1.17),(130.12±2.19),(27.48±1.24) g/(m^(2)·d), respectively. The removal of total nitrogen and total phosphorus in wastewater reached(98.85±0.08)%,(11.86±0.10) g/(m^(2)·d) and(98.35±0.14)%,(2.17±0.01) g/(m^(2)·d), the efficiency of photoconduction was 11.80%. Studies have shown that this biofilm system had low energy consumption and stable operation, and light-supplementing strategy could promote the growth of biofilm, pollution removal and carbon sequestration.

关 键 词：微藻生物膜 旋转盘光生物反应器 自然光照 光合效率 除污固碳 

分 类 号：TK6[动力工程及工程热物理—生物能]