【摘要】 借助人工装置和露天水池,通过分析实验水体中氮、磷元素浓度的变化,研究了实验室条件下一种绿球藻(Chlorococcumsp.)和露天小型生态系统中寡枝刚毛藻(Cladophora oligoclonaKütz).对污水中氮磷营养的去除效果.结果显示:绿球藻在高浓度氮和磷的污水中生长良好并维持较高的氮磷去除率,在6天处理期间,人工污水中总溶解性氮、硝酸盐氮、氨氮、总溶解性磷的去除率分别达到46.2%,37.8%,98.4%和79.3%;在对天然湖泊水的处理中,绿球藻对总溶解性磷的去除率在第5天为79.2%.室外条件下,该刚毛藻通过吸收水体中的氮、磷营养维持自身正常生长代谢,从而降低水体的电导率和改善水质.根据本次研究,结果两种被试藻类均可作为污水处理用藻类,其中Chlorococcumsp.适合用于静态水体的修复与改善,Cladophora oligoclona适合于流动水体的减负与治理.更多还原

【Abstract】 By analyzing the concentration changes of nitrogen and phosphorus in experimental water,both a laboratory study and an outdoor experiment have been conducted for testing the removal efficiency of nutrients by algae.The test alga for the laboratory study is Chlorococcum sp.and for the field experiment is Cladophora oligoclona Kütz.respectively.The results show that Chlorococcum sp.grow quite well and have high removal rates of nitrogen and phosphorus in the sewage with very high concentrations of nitrogen and phosphorus.The removal rates of total soluble nitrogen,nitrate,ammonia and total soluble phosphorus from synthetic sewage were 46.2%,37.8%,98.4% and 79.3% in six days.The removal rate of total soluble phosphorus from crude lake water by the alga was 79.2% in five days.Cladophora oligoclona can grow normally and absorb relatively on nitrogen and phosphorus from the natural water in outdoor conditions.It plays an important role on reducing the specific conductance and improving the water quality.According to the results obtained in this study and referring to other relational research reports,both Chlorococcum sp.and Cladophora oligoclona have ability for removing nutrients from wastewater.Chlorococcum sp.is suitable for rehabbing and improving in static water and Cladophora oligoclona is suitable for treating and protecting in flowing water.更多还原