摘要
采用1株异养原核小球藻USTB-01对化肥厂废水中总氮的去除进行了研究。结果表明,添加一定量的磷酸盐和碳酸钠特别是葡萄糖分别作为磷、无机碳和有机碳源,不仅可以明显促进原核小球藻USTB-01的生长,而且可以大幅度提高废水的总氮去除效率。在4 d时间内原核小球藻USTB-01的生长从OD680 nm0.5增加到3.6,提高到7倍,而废水中总氮的浓度从125 mg/L降低到10.3 mg/L,去除率达到了93.1%,处理后的废水可以达标排放。不仅在高含氮废水的处理,而且在利用废水中的氮培养原核小球藻USTB-01的废水资源化利用方面均具有重要的意义。
Using an isolated strain of Chlorella protothecoides USTB-01 to remove total nitrogen （TN） from the wastewater discharged from a chemical fertilizer plant was investigated. The results showed that the removal efficiency of TN from wastewater was much improved by adding KHEP04, Na2CO3 and glucose as phosphorus, inorganic and organic carbon sources to support the rapid growth of C. protothecoides USTB-01. During four day＇ s culture, the biomass of C. protothecoides USTB-01 increased to more than seven times, which was from OD680nm 0. 5 to 3.6. The concentration of TN in wastewater decreased from 125 mg/L to 10.3 mg/L and the removal rate reached 93.1% , which could be discharged complying with TN national discharge standard. This study is very important not only in the treatment of wastewater containing a great amount of nitrogen, but also in the production of C. protothecoides USTB-01 using nitrogen in wastewater discharged from a chemical fertilizer plant.
出处
《环境工程学报》
CAS
CSCD
北大核心
2010年第4期737-740,共4页
Chinese Journal of Environmental Engineering
基金
国家自然科学基金资助项目(20777008)
北京市教委共建计划和教育部大学生创新基金联合资助项目
关键词
化肥厂废水
原核小球藻USTB—01
总氮
去除
chemical fertilizer plant wastewater
Chlorella protothecoides USTB-01
total nitrogen
removal
