1. Regulation tank and manual and mechanical grid safety technology operating rules: a domestic sewage must be screened by manual and mechanical grid before entering the collection tank, and the floating objects in front of manual grid must be removed in time; The mechanical grille can be operated manually or automatically. Press the automatic gear, the mechanical grille will automatically run, realize automatic start and stop, and the time can be set and adjusted at will. When the manual gear is pressed, the mechanical grille is manually operated. The garbage removed by the mechanical grille enters the car and is disposed of in time when it is fully loaded. 2. Operating rules for safety technology of biological contact oxygen biochemical pool: a, when debugging, start the submersible sewage pump in the water collection pool (domestic sewage) first, introduce the sewage after anaerobic treatment into the biochemical pool, conduct full stuffy aeration for 1-2 days, and start the sludge reflux device at the same time; B, the sewage in the biochemical tank automatically flows into the secondary sedimentation tank, and the precipitated sludge circulates and then flows back to the anaerobic tank. After two days of aeration, fuzzy flocs will appear in the aeration tank. At this time, nutrients (such as urea and phosphate fertilizer) can be added appropriately and metabolic substances harmful to microbial growth can be eliminated. C, to change the water in time, that is, to remove fresh water in time and replenish fresh water, and the water change can be carried out intermittently or continuously. Until the settling rate of MLSS reaches15%-20% within 30 minutes; D. Generally, the water temperature is above 15℃, and the above requirements can be achieved after rough culture for more than 10- 15 days. If the influent concentration is very low, in order to shorten the culture period, the sludge from the secondary sedimentation tank or sewage ditch can be directly introduced into the aeration tank, or part of the strain sludge or fecal water can be used as strains and nutrients to accelerate the formation of activated sludge. In the cultivation and operation stages, continuous aeration must be carried out in the aeration tank. (Stop aeration when changing water intermittently); E. Activated sludge culture can also be cultivated directly after inoculating fecal water or domestic sludge. When directly culturing with manure, dilute and filter the concentrated manure, put it in an aeration tank, then let it stand for culture (1-2 days), and then intermittently or continuously culture. For ordinary domestic sewage, in the initial stage of culture, intermittent culture is generally adopted, and it is best to introduce inoculated sludge and nutrients. Nutrients can be rice washing water, flour, nitrogen fertilizer, potassium fertilizer, phosphate fertilizer, etc. , carbon; Nitrogen; Phosphorus = 100: 5: 1 is appropriate. When the concentration of activated sludge reaches a certain value, intermittent culture can be changed to continuous culture immediately. After continuous inflow and outflow of water for a certain period of time, flocs appear in the aeration tank, indicating that activated sludge has been formed and can be put into operation formally; F. Roots blower must be turned on immediately after the biochemical pool is filled with water (to ensure continuous oxygen supply), and tiny bubbles must be evenly distributed during aeration in the pool; The dissolved oxygen in the biological contact oxidation tank is controlled at 3-5 mg/L, and the above is collected and sorted by Zhong Da Consulting Company.
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