【摘要】 从实际应用的角度研究景观水防腐技术,采用生物滤池、紫外线照射、投加次氯酸钠三种方法处理景观水,对景观水水质的TN、TP、COD、chla等指标进行检测,计算景观水的营养化指数,从而探索景观水防腐的最佳方法,为防止景观水富营养化提供科学依据。结果表明:经生物滤池处理的景观水可使TN、TP等营养物质下降到0.3 mg/L和0.01 mg/L,去除率为78.8%和61.3%,去除率明显高于其他2种。经生物滤池处理的景观水中chla、COD的含量相对于紫外线照射和投加次氯酸钠处理均较低,且浓度变化较稳定,波动性小。生物滤池处理的景观水,从第8周开始水体的营养化程度降低到50以下,维持在中营养程度,有效防止了水质腐败。更多还原

【Abstract】 The technologies of biological filter,UV radiation and sodium hypochlorite were used to deal with landscape water. In order to compare the anticorrosive effect and choose the best method,the content of total nitrogen(TN),total phosphorus(TP),chemical oxygen demand(COD) and chla were detected,and the eutrophication index of landscape water was calculated.The results showed that the content of TN and TP decreased to 0.3 mg/L and 0.01 mg/L,respectively by biological filter treated,and removal rates of TN and TP were 78.8% and 61.3%,respectively.The anticorrosive effect was better than other two methods significantly.The content of chla and COD,maintain at a stabilized level,was depressed by biological filter treated than UV radiation and sodium hypochlorite.The eutrophication level reduced to less than 50 after eight weeks and maintained in the level of mesotropher by biological filter treated.Biological filter could prevent corruption of landscape water effectively.更多还原