technological process
The sewage first enters the collection and regulation tank for water quality control. The family water regulating pool is self provided by the user, usually using a concrete pool body. The user can determine the regulating time based on the production process, water quality, and stability of the water. The residence time of the regulating pool is generally 4-8 hours, and then it is lifted into the integrated sewage treatment device through a lifting pump The device can discharge water immediately.
1. Primary sedimentation tank: adopts a vertical flow sedimentation tank The sewage flow rate is 0.5-0.8mm/s. The sludge is transported to the sludge tank by air. When treating 2m3/h of water It can be merged with the water collection regulating pool to become a primary sedimentation regulating pool. The duration of stay is 2.5-6 days in the mountains.
2. Contact level chemical pool: The contact level chemical pool is divided into three levels The total dwell time is 4.5-6. Oh. Internally, it is advisable to combine fillers. The aeration system adopts microporous aerators Greatly improved the efficiency of oxygen utilization Thus reducing energy consumption The water to air ratio is generally 1:15-20.
3. Secondary sedimentation tank: The secondary sedimentation tank is a inclined plate sedimentation tank The total duration of stay is 1-2 hours.
4. Disinfection pool: The contact time of the disinfection pool is 30 minutes according to the TJ14-74 standard, and special sewage can be extended to 1-1.5 hours Generally, solid oxygen tablets are used for disinfection (other disinfection equipment can be equipped according to user requirements), and industrial organic wastewater is discharged after treatment Can eliminate the need for a disinfection tank.
5. Sludge tank: All sludge from the primary and secondary sedimentation tanks is discharged into the sludge tank for aerobic digestion The upper disinfectant flows back to the contact oxidation tank Due to the small amount of remaining sludge, it is generally cleaned up around September to September 15th during transportation.

Auto-Control
1. Adopt PLC centralized automatic control The lifting water pump is automatically controlled by a floating ball When the water level in the regulating pool reaches a certain height Automatically start the entire device, and when the water level reaches a certain low level, the entire device will automatically shut down and be in standby mode.
When the water level exceeds the reported value and the water level is particularly high, two lifting pumps can be automatically turned on to work simultaneously.
3. Use two fans alternately When one is damaged Another automatic continuous use And when the device is in a state of readiness The wind turbine will automatically operate intermittently to ensure the required level of microorganisms in the contact level tank.
4. The sludge can be automatically discharged and rescued several times a day according to the on-site debugging conditions.
5. There are protections and sound and light alarms for faults such as phase loss, undervoltage, and overvoltage of each motor in the equipment.

install
Debugging and maintenance
1. User provided installation method: buried or above ground At the same time, installation shall be carried out according to the equipment layout plan of Tianhe Water Company and the equipment foundation "Concrete Foundation". The average bearing capacity of the foundation shall be above 5000kg/m2.
2. The foundation must be level The relative elevation is accurate, and during earthwork construction, the width must be at least 500mm away from the edge line of the foundation Easy to install equipment pipelines.
3. After connecting the pipeline, first use drip water to test the pressure Confirm that the pipeline connection is leak free Simultaneously adjust the levelness and water outlet height of the sedimentation tank's buried plate. Check the forward and reverse rotation of each motor equipment.

debugging
During debugging, the sewage pump will lift the rated flow of sewage to the equipment. Open the gas barrier system (during the initial debugging stage, the gas barrier can be appropriately increased) and check the growth of biofilm in the contact tank through the inspection port every day. Conditional users can use a microscope to observe the species and approximate number of organisms in the pool When a colored or yellow organism is attached to the filling material, it can be considered that the biofilm cultivation has been successful. Can enter normal operation.
If the raw water is organic wastewater from a factory You can first use domestic sewage or artificially add some biological nutrients to cultivate biofilms, and then gradually add industrial organic aquatic organisms for domestication and inoculation.
3. The average gas sludge is at 20 ℃ The cultivation time of domestic sewage biofilm generally takes 1-2 weeks, while the cultivation and domestication time of industrial organic water biofilm generally takes 3-4 weeks.
maintain
In order to improve the use of the equipment and ensure stable effluent quality, necessary maintenance and upkeep must be carried out on the equipment. Pumps, fans, etc. need to be regularly refilled or replaced with engine oil Normally. The fan needs to be maintained once after running for 10000-12000 hours The submersible pump should be maintained every 8000-10000 hours of operation.
2. The overhaul cycle of this equipment is generally set at 10 years.

Supply Description
Due to the fact that the equipment is buried underground and difficult to maintain, we considered its maintenance free nature when designing and manufacturing the device Simultaneously equipped with inspection holes Facilitating the repair of sudden malfunctions.
2. The equipment is generally made of 0235 steel plate, with ordinary anti-corrosion (special anti-corrosion can also be carried out according to user requirements), and can also be made of fiberglass. The general service life can reach more than 15 years.
3. The lifting water pump matched with the equipment adopts an anti clogging and tear resistant Han water pump It can effectively pass through solid fibers with a diameter of 30-80mm and gradually crack long fiber materials No need to install a filter screen at the inlet of the water pump. The water pump operates safely for over 8000 hours. The fan room has no basin for one hand.
After selecting the device, users only need to connect the power supply of the device, connect the inlet and outlet pipelines of the device, and the pipelines between each individual unit of the device After entering the water, debugging and operation can be carried out.
5. If there are special requirements for the frozen soil layer in the user's area, a special declaration must be made when ordering In order to adjust the height of the inspection hole according to the thickness of the frozen soil layer in the user's device usage area.