大米草净化生活污水的研究

Experimental research on the purification of spartina anglica to household wastewater

采用大米草净化生活污水 ,吸附生活污水中的CODcr、BOD5、TN、TP ,从而达到净化生活污水的目的。通过对比法实验 ,结果表明 ,大米草虽然是一种海滩盐沼植物 ,但也能适应贵州高原性气候 ,在此条件下生长仍具有原有的生物特性 ,在用于处理生活污水的过程中对污染物CODcr、BOD5、TN、TP的去除率分别为 86 .34%、93.11%、80 .11%、82 .15 % ,如果污水在大米草的系统中停留 5d ,其污染物的去除率更高 ,均在 90 %以上 。

The biological characteristics of spartina anglica,which absorbs COD cr ,BOD 5,TN,TP in the water,were used to purify household water and reduce the affection of waste water on the environment.Spartina anglica is a good succulence.When it is used to purify waste water,there will be environmental benefit as well as economic benefit.The comparison experiment showed that spartina anglica could acclimate the climate in the plateau of Guiyang and had the primary biological features even if it lives on the salt marsh and beach.The pollutants removal rates were 86.34%,93.11%,80.11% and 82.15%,respectively for COD cr ,BOD 5,TN,TP during the experiment.If waste water was kept in the system with spartina anglica,pollutants removal rates would be higher,all were higher than 90% and the effect was better.The waste water could reach the first class standard after treatment.