1. Inject clean water (and domestic sewage at the same time) into the aerobic pool to a certain water level, and pay attention to the water temperature.
2. Start the fan and blow air according to the fan operating procedures.
3. Add filtered concentrated fecal water to the aerobic pool (when fecal water is insufficient, it can be supplemented with sludge in the septic tank and drainage ditch.) Make the sludge concentration not less than 1000mg/L and the BOD reach a certain value.
4. If conditions permit, add activated sludge strains to speed up the cultivation and work efficiently. The strains are all screened in the laboratory.
5. Aerate, stir, settle and drain the reaction tank according to the activated sludge cultivation operation process.
6. Pay attention to the growth of activated sludge through microscopic examination and determination of sedimentation ratio and sludge concentration. And pay attention to the changes in the online pH value and DO values, and adjust the process in time.
7. Determine the water quality of the initial water and the water quality of the supernatant in the drainage stage. According to the changes in the concentration values of NH3-N, BOD, COD, NO3-, NO2- and other influent and effluent water, determine the activity of the activated sludge and the dominant bacterial species, and adjust the influent volume, replacement volume, manure, NH4Cl, H3PO4, CH3OH dosage and time distribution within the cycle.
8. Pay attention to the growth of the activated sludge. When a large number of dense bacterial flocs are observed through microscopic examination, and protozoa (such as bell worms) can be observed, and the number increases rapidly from a small number, it means that the sludge culture is mature and can be fed with production wastewater for domestication.
