Method for removing ammonia nitrogen and nitrite from water body
A technology of nitrite and ammonia nitrogen, which is applied in chemical instruments and methods, water pollutants, biological water/sewage treatment, etc., can solve the problems that water quality is difficult to be purified, ammonia nitrogen and nitrite are difficult to be completely removed, etc.
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Embodiment 1
[0013] Take 100 kg of anaerobic sludge with a bacterial content of 1×10 6 CFU / g, weight ratio water content 30%, 0.01 kg of chlorella algae mud and spore mixture, stir the two evenly, let stand for 10 minutes, then add 100 kg of water without disinfectant, water temperature 5 ° C, light intensity 3000 lux , Stir evenly, put it into a transparent glass container and stir it at a low speed for 10 minutes (the speed is lower than 15 rpm) for cultivation, until all the sludge turns from gray-black to green, then the sewage to be treated can be discharged into the container. The volume ratio of the bacteria and algae complex solution to the sewage is 0.0001:50, the ammonia nitrogen content in the sewage is 55mg / l, the volume of the bacteria and algae group accounts for 10% of the effective pool capacity, the hydraulic retention period is 24 hours, and the ammonia nitrogen removal rate reaches 80% at 28°C. The removal rate of nitrite reaches 92%.
Embodiment 2
[0015] Take 40 kg of anaerobic sludge and 60 kg of aerobic sludge, with a bacterial content of 4×10 8 CFU / g, weight ratio water content 85%, 0.3 kg of diatom mud and spore mixture, 0.2 kg of Chaetoceros moushii and spore mixture, stir the two evenly, let stand for 3 minutes, add no disinfectant, salinity 15 -25‰ water 1000 kg, stir again and pour it into a concrete sewage treatment tank, store the light intensity at 30000 lux, water temperature 25-40 ℃, stir at low speed for 120 minutes, until all the sludge turns from gray black to After gray or yellowish brown, the sewage discharged from mariculture to be treated can be discharged into the pool. The volume ratio of the bacteria and algae complex solution to the sewage is 1:1, the ammonia nitrogen content in the sewage is 25mg / l, and the volume of the bacteria and algae group accounts for the effective pool capacity. 5%, the hydraulic retention period is 24 hours, 28 ℃, the removal rate of ammonia nitrogen reaches 95%, and th...
Embodiment 3
[0017] Take 100 kg of aerobic sludge with a bacterial content of 1×10 9 CFU / g, weight ratio water content 95%, 60 kg of microalgae mud and spore mixture, stir the two evenly and let stand for 15 minutes, then add 300 kg of nitrogen-containing sewage without disinfectant to be treated, stir again and pour into In a concrete sewage treatment tank, keep the light intensity at 8000-10000lux, water temperature at 18-30°C, and stir at a low speed for 60 minutes. After all the sludge turns from gray-black to green, it can be discharged into the pool to be treated. For the sewage discharged from the pig farm after biochemical treatment, the volume ratio of the bacteria and algae complex solution to the sewage is 25:50, the ammonia nitrogen content in the sewage is 560mg / l, the volume of the bacteria and algae group accounts for 25% of the effective pool capacity, and the hydraulic retention period is 24 hours. At 28°C, the removal rate of ammonia nitrogen reaches 92%, and the removal ...
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