The two-stage biological contact oxidation processes all adopt plug-flow biologicalcontact oxidation, and the treatment effect is better than that of completelymixed or two-stage series completely mixed biological contact oxidationtanks. Compared with activated sludge tank, it has small volume, strongadaptability to water quality, good impact load resistance, stable effluentquality and no sludge bulking.  A novel elastic three-dimensional filleris adopted in the tank, so that the specific surface area is large,microorganisms are easy to hang films and remove films, the organic matterremoval rate is high under the same organic matter loading condition, and thesolubility of oxygen in air in water can be improved. Advanced Cases of Integrated Domestic Sewage Treatment Equipment in Shannan Region. Make the blower run safely and stably.  (4) often pay attention to andregularly listen to the sound of the unit operation and the vibration of the bearing,if found abnormal sound or vibration intensifies, should take immediatemeasures, when necessary, should stop to check, find out the reason,troubleshooting.  ⑤ It is strictly prohibited to operate thecentrifugal blower unit in surge area.  ⑥ Check and maintain the motor or gear boxaccording to the requirements of the manual.  ⑦ Incase of any of the following conditions during the operation of the blower, stop immediately for inspection: A. sudden strong vibration of the unit orfriction sound in the casing;  B, any bearing smoke;  C, bearingtemperature suddenly increased beyond the allowable value, take variousmeasures still can't reduce.  D, 200h after the first drive should changethe oil.  If the replaced oil has not deteriorated, it can be reused afterbeing filtered by the filter.  Oil sample analysis shall be conducted 500hafter the first start-up and once a month thereafter. If oil deterioration isfound, the oil shall be changed immediately.  The oil number must conformto the regulations, and other brands of oil are strictly prohibited.  E.check the extraction position in the oil tank.

For the equipment used and debugged for the first time, when the water level reaches half the height of the equipment, stop the water intake of the water pump, open the inlet valve of the fan, open the fan, slowly open the outlet valve of the fan, aerate the oxygen tank for 48 hours, then start the water intake lift pump to add the sewage to three quarters of the equipment, and aerate the tank for 24 hours. Advanced Cases of Integrated Domestic Sewage Treatment Equipment in Shannan Region. The main sources of rural sewage are residents' daily living water, washing water and kitchen water.  The pollutants in the sewage are mainly nitrogen, phosphorus and organic matters. Rural sewage treatment equipment can treat these rural sewage. What are the advantages of rural sewage treatment equipment?  It is assembled on site.  Lightweight, easy to transport and easy to install.  Anti-corrosion components made of glass fiber reinforced plastic, carbon steel and stainless steel have excellent characteristics of corrosion resistance, aging resistance and long service life.  It is placed below the ground surface, and the ground surface above the equipment can be used as greening or other land without building houses, heating and heat preservation.  The integration of the system is realized to a greater extent and the occupied area is reduced.  Small pollution, no noise, no peculiar smell, reduce secondary pollution.  It is not limited by the amount of domestic sewage and is flexible and can be used singly or in combination.  The whole equipment processing system is equipped with PLC full-automatic electrical control system and equipment failure alarm system, which is safe and reliable in operation.  Usually, there is no need to assign special personnel to manage the equipment, only the equipment needs to be maintained and maintained in a timely manner, and the management cost is small.