摘要
为探索微藻对天然橡胶加工废水处理的可行性,笔者进行了念珠藻(Nostoc sp.)、鱼腥藻(Anabaena sp.)、鞘丝藻(Lyngbya sp.)和小球藻(Chlorella sp.)在天然橡胶加工废水中的适应性试验,检测了小球藻对不同处理阶段的天然橡胶加工废水的总氮(TN)、总磷(TP)、化学需氧量(COD)的去除效果;检测了废水培养小球藻至对数期后添加营养液后藻种密度、pH及导电率的变化。结果表明:4种藻种中,小球藻在天然橡胶加工废水中的适应性最强。废水中TN,TP,COD浓度越高,微藻对其去除效果越好。去除效果依次为废水原液>厌氧发酵废水>处理后废水。小球藻可以高效去除天然橡胶加工废水中的TN,TP,COD,对橡胶加工废水原液TN,TP,COD去除率分别为89.21%%,70.00%,49.33%。利用天然橡胶加工废水培养小球藻至对数期后添加营养液可以有效延长培养时间。
Microalgae Nostoc sp.,Anabaena sp.,Lyngbya sp.and Chlorella sp.were cultured in the effluent from the natural rubber processing factories to observe their effect on the treatment of the effluent.The total nitrogen(TN),total phosphorus(TP)and chemical oxygen demand(COD)removed from the effluent at different treatment stages was determined,and the cell density,pH value and conductivity of the effluent were measured after adding of nutrient solution into the effluent treated with the microalgae at the late log phase.The results show that Chlorella sp.was most adaptable in treatment of the effluent among the 4 species of microalgae.The higher the concentrations of the TN and TP and the COD in the effluent,the better the removal efficiency.Chlorella sp.could effectively remove TN,TP and COD from the effluent in the order of the original effluent>the anaerobically fermented effluent>the treated effluent,and its removal rates of TN,TP and COD from the effluent in the Rubber Processing Factory were 89.21%%,70.00%and 49.33%,respectively.Adding of nutrient solution in the effluent cultured at the late log phase prolonged effectively the culture time of Chlorella sp in the effluent.
作者
李兴涵
钟朝霞
方虹
李亚军
郑子阳
费小雯
邓晓东
LI Xinghan;ZHONG Zhaoxia;FANG Hong;LI Yajun;ZHENG Ziyang;FEI Xiaowen;DENG Xiaodong(Institute of Tropical Bioscience and Biotechnology/Hainan Key Laboratory for Development and Utilization of Functional Components of Marine Bio-resources,Chinese Academy of Tropical Agricultural Sciences,Haikou,Hainan 571101,China;School of Basic Medical Sciences and Life Sciences,Hainan Medical College,Haikou,Hainan 571199,China)
出处
《热带生物学报》
2020年第3期347-352,共6页
Journal of Tropical Biology
基金
海南省重点科技计划(ZDYF2018124)
国家自然科学基金(31870344)
农业农村部财政专项(NFZX2018)
中国热带农业科学院基本科研业务费专项资金(19CXTD-32)。
关键词
微藻
小球藻
天然橡胶
废水处理
microalgae
Chlorella sp.
natural rubber
effluent treatment
