Treatment Of Inorganic Nitrogen In Micro Polluted Water By CW-MFC System

Water resource is the base of human survival,with social development and population's explosion,water resource having serious waste.Efficient's water treatment technology for social sustainable development is very important.Research object of this experiment is CW-MFC,research removal effect of COD and inorganic nitrogen in micro polluted water with wetland substrate?Cordierite Ceramic and pelelith?,any plants CW-MFC and CW,also research any plants CW-MFC's electricity generation.Firstly,research the influence of system's hydraulic residence time?HRT?,though the observe and record.The inorganic nitrogen concentration in the system is bast in 60 h.Other condition of Plant-CW-MFC system remain unchanged,two kinds of substrates were placed in two devices respectively to study the removal effect of inorganic nitrogen.The results showed that the cordierite systems removal rates of NH4+-N,NO3--N and NO2--N are 90.15%,87.94% and 81.95%respectively.The pelelith system removal rates of NH₄⁺-N,NO₃+^--N and NO₂^--N are 85.22%,90.78% and 78.11% respectively.The concentration of outflow water of inorganic nitrogen is less than 1mg/L;the removal rates of COD in cordierite system and pelelith system are 76.45% and 73.83% respectively.Cordierite system productes voltage is 734 m V,ampere density is 1.36A/m³,power density is 0.21W/m³ and the internal resistance is about 540 ?.Pelelith system's are 651 m V,1.06A/m³,0.15W/m³ and 614?.Through the SEM,two wetland substrates are discovered have too much hole,provide the habitat for a large number of microorganisms;Kinetic analysis of ammonia nitrogen analyze ammonia nitrogen's concentration,time,p H's influence for the two wetland substrates' ammonia nitrogen adsorption;XRD analyze the two wetland substrates are no difference before and after use.Figure 57;Table 13;Reference 74...