Research On Environmental Effects Of Nitrogen Concentration In Reed Wetland Soil Treating The Laboratory Wastewater And Humic Acid

Plants need nitrogen nutrition that environment provides. But Nitrogen environment provides was more than the use of plant growth, that is, to pollute the environment. Laboratory wastewater has the instability, variability, toxic hazardous and other notable features. If this waste will not be properly treated and disposed, it will cause serious damage to the environment or humans. Humic acid is a natural mixture of synthetic organic molecules, the main constituent elements are carbon, nitrogen, sulfur, and hydrogen. Humic acid is widely distributed in China, the role of soil improvement is obvious. Reed wetland treatment system is an artificial composite processing system, with strong adaptability, low capital investment costs, easy cultivation, economic value advantages.Whether treating the laboratory wastewater and humic acid with reed wetland provides a favorable environment nitrogen. Different researchers give different answers. The researches were done to estimate the removal of nitrogen pollutants in Laboratory wastewater and humic acid, it were also explored the reed nitrogen distribution and variation.The results showed that:1) Laboratory wastewater and humic acid is added, increasing the nitrogen content of the soil, while promoting the use of plants to absorb nitrogen. The average soil nitrogen control were higher than wastewater treatment laboratory soil and humic acid soil.The average nitrogen soil content of humic acid is more than wastewater’s0.04g/kg, high5.26percent. The average nitrogen soil content of wastewater is low than control’s0.67g/kg, low46.85percent. The average nitrogen soil content of humic acid is low than control’s0.63g/kg, low44.06percent.2) Variance analysis method for data collation and comparison, we can see whether there is the essential difference between the experimental subjects. The nitrogen concentration between the soil of treating the Laboratory wastewater and humic acid and the contrast soil; Laboratory waste water and humic acid is added to accelerate decomposition rates of biological soil for nitrogen-containing organic compounds, increase the utilization of nitrogen.3) Limits for nitrogen in the soil, increasing the nitrogen content, will promote the growth of plants on nitrogen absorption. Conversely, over limit, continue to increase the nitrogen content, nitrogen absorption plants are suppressed. The nitrogen concentration in the soil did not reach the limit (216×103mg/kg). No impact on the growth of reeds, can further increase the amount of processing.In this study, an artificial wetland dispose of nitrogen pollutants of laboratory wastewater, removal more stable, but poor for humic acid removal. Therefore, this deficiency has yet to be coming more in-depth study.