Influencing Factors And Result Of Landscape Water Body Bioremediation

This test was used test measurements such as concentration of TN,TP and COD,in 27 days was test period,the removal rate of pollutants was the evaluation standard.It selected six kinds of plant,for example canna,money plant,water bamboo,washington grass,scindapaus and calamus.The main results are as follows:1)The water purification experiment in single plant artificial floating island,calamus artificial floating island in the aquatic TN removal rate is the highest to 80.62%;Money plants artificial floating island to the removal efficiency of TP in water is 71.20%;Canna artificial floating island to the removal efficiency of COD in water is 68.16%.2)The water purification experiment in three plants combination artificial floating island,money grass,calamus,water bamboo were mixed artificial floating island in the aquatic TN,TP and COD removal rate is the highest to 91.76%,78.00% and 76.18%.The plants combination artificial floating island for water removal rate of pollutants as a whole is higher than the single plant artificial floating island.3)Experiment in the microbial and plant combination artificial floating island,the effect of microorganisms can generally improve plant combination artificial floating island pollutants removal rate,and calamus,scinadapsus,water bamboo combination and money grass,calamus,water bamboo combination with microbial removal effect than pure plant treatment effect is more ideal,calamus,scindapsus,water bamboo combination after adding microorganism instead,COD removal rate is 5.87%.4)The experiment in the early plant combination artificial floating island,water purification effect of money grass,calamus,water bamboo plants combined artificial floating island is the best.Changing the original water initial concentration of pollutants,the common phenomenon appeared with the increase of the overall pollutant concentration removal rate is more and more low.