Qingyang City Hospital Wastewater Treatment Equipment - Hospital Wastewater Treatment Device

scope of application

The equipment is suitable for the treatment and reuse of domestic sewage in residential areas, villages, towns, office buildings, shopping malls, hotels, restaurants, nursing homes, government agencies, schools, hospitals, highways, railways, factories, mines, tourist attractions, and similar small and medium-sized industrial organic wastewater such as slaughter, aquatic product processing, and food. The sewage treated by this equipment meets the national comprehensive sewage treatment discharge standard level B standard.

Hospital sewage discharge is generally divided into two parts:

Part of it isDomestic sewage,a partWastewater generated by relevant hospitals. In response to the requirements for water quality and quantity of inflow and outflow, the design process of integrated hospital sewage treatment equipment is: first level slag separation and regulation; Secondary biochemical degradation; The treatment process of three-level contact disinfection and filtration. The first level mainly removes animal and vegetable oils and solid waste from sewage through grilles, and adjusts the water volume and quality through regulating tanks; The secondary biodegradation mainly involves A/O biodegradation treatment process (two-stage contact oxidation process), which can effectively reduce the organic pollutant indicators in sewage to the discharge standards through contact reactions; Third level contact disinfection is a necessary and effective treatment for the sterilization of Escherichia coli and other bacteria in hospital wastewater. By controlling the contact disinfection time and dosing program, the number of Escherichia coli can be kept at a low level, and the effluent from the filtration system can be ensured to meet water quality requirements.

Design scope

The self flowing sewage enters the regulating pool of the treatment facility and is discharged after reaching the standard after sewage filtration treatment. Including the design of sewage treatment facilities, buildings, structures, water supply and drainage, electrical automation, and other related content.

Process characteristics

By adopting the contact oxidation method, the removal efficiency of pollutants has been improved, and there is less residual sludge;
2. Set up accident bypass for use in emergency and special situations;
By selecting reasonable design parameters such as surface load, effective water depth, and inclination angle of the sludge hopper in the sedimentation tank, the efficiency of solid-liquid separation has been improved;
4. The main source of noise comes from mechanical and electrical equipment. This design uses a submersible sewage pump and a rotary blower, and takes effective measures such as noise reduction, sound insulation, and vibration reduction. The noise can be controlled within the Class II standard of urban environmental noise standards (≤ 60dB during the day and ≤ 50dB at night);
5. Each system designed is a fully enclosed structure, and the exhaust gas is centrally filtered through pipelines and discharged at high altitudes.
6. Based on local climate conditions, in order to avoid the impact of the environment on the biological process of sewage treatment, minimize infrastructure investment and operating costs, reduce the impact on the surrounding environment, minimize the use of ground surface area, and make equipment operation simple, the entire sewage treatment system is located below the frozen soil layer, that is, underground buildings are used.
7. Three dimensional elastic fillers are used for contact oxidation, which have fast conjunctiva, easy membrane detachment, and high effective utilization rate. Micro porous aeration is used for aeration, with fast sewage circulation speed and uniform dissolved oxygen. Each building is equipped with maintenance holes for emergency troubleshooting, and the height of the maintenance holes can be determined according to the local permafrost layer.
8. Both the fan and the water pump are used alternately, greatly extending their service life. The equipment is designed with a 10-year major repair cycle.
9. The system is controlled by a microcomputer, with external current sensors and fault handling circuits. It can simultaneously control water pumps, fans, intake solenoid valves, etc., and monitor their working conditions in real time. It has automatic protection function and is also equipped with manual control devices.

Construction and principle of sewage treatment equipment:

1. Construction: The sewage treatment equipment consists of the equipment body, aerobic biochemical system, denitrification system, MBR membrane filtration system, UV disinfection system, and PLC automatic control system;

2. Technical principle: Organic wastewater is treated with aerobic biochemistry and denitrification, filtered through submerged hollow fiber membranes to achieve sludge water separation, disinfected with clean water before being discharged, and the concentrated solution is re nitrified in the system;

3. Working process: The wastewater is pumped into the reactor, where the biological carrier adsorbs the organic matter in the wastewater. At the same time, aerobic microorganisms nitrify and decompose the organic matter. The circulating pump in the system refluxes the nitration solution to the concentration denitrification system, reducing the ammonia nitrogen in the wastewater to nitrogen and discharging it; The wastewater is filtered through a membrane and discharged into a clean water tank. The clean water is then disinfected with ultraviolet light and discharged externally; The system self-control includes total inlet water level control, MBR membrane filtration and backwash automatic control, etc

Energy consumption analysis of various processing structures:

1. Sewage lifting pump room

The sewage entering the sewage treatment plant is filtered through coarse grids and enters the sewage lifting pump room Afterwards, it was lifted by the sewage pump to the front pool of the sedimentation tank The operation of a water pump consumes a large amount of energy A significant proportion of the total energy consumption in the operation of sewage treatment plants This is related to the sewage flow rate and the lift to be increased

2. Sedimentation tank

The function of a sedimentation tank is to remove inorganic particles with a high specific gravity The sedimentation tank is generally located in front of the pump station In front of the inverted siphon In order to reduce the impact of inorganic particles on the water pump The wear of pipelines can also be located in front of the primary sedimentation tank To reduce the load on sedimentation tanks and improve the treatment conditions of sludge treatment structures The commonly used sedimentation tank is a horizontal flow sedimentation tank Aeration sedimentation tank Dole sedimentation tank and bell shaped sedimentation tank The main energy sources required in the sedimentation tank are the sand water separator and sand suction machine And the aeration system of the aeration sedimentation tank The power system of Dole sedimentation tank and bell shaped sedimentation tank

3. Initial sedimentation tank

The initial sedimentation tank is the main treatment structure of a primary sewage treatment plant Or as a pre-treatment structure for the secondary sewage treatment plant, it can be located in front of the biological treatment structure The target of treatment is SS and partial BOD5. It can improve the operating conditions of biological treatment structures and reduce their BOD5 load The primary sedimentation tank includes a horizontal sedimentation tank Radial flow sedimentation tank and vertical flow sedimentation tank The main energy consuming equipment of the primary sedimentation tank is the sludge discharge device For example, a chain scraper Scraping and skimming machine Suction pumps, etc But due to the influence of the sludge discharge cycle The energy consumption of the primary sedimentation tank is relatively low

4. Biological treatment structures

The energy consumption of the sewage biological treatment unit process accounts for a considerable proportion of the direct energy consumption of the sewage plant The combined energy consumption of it and the sludge treatment unit process accounts for more than 60% of the direct energy consumption of the sewage plant The aeration system of activated sludge process consumes a large amount of electrical energy It is basically running on Lianxi And the power is relatively high Otherwise, a better aeration effect cannot be achieved The processing effect is also not good The aerator installed in the oxidation ditch treatment process is also a device with high energy consumption Compared with activated sludge process, biofilm treatment equipment has lower energy consumption But currently there are few applications It is a treatment process that needs to be vigorously promoted in the future

5. Secondary sedimentation tank

The capacity consumption of the secondary sedimentation tank is mainly in the suction of sludge and the removal of floating debris in sewage The energy consumption is relatively low

6. Sludge treatment

Concentrator in sludge treatment process Sludge dewatering Drying consumes a large amount of electricity The energy consumption of sludge treatment units is quite high These devices have a high power consumption

Equipment maintenance and upkeep:

1. An integrated domestic sewage treatment equipment should establish a regular maintenance system, with the main vulnerable components being the fan and water pump.

2. Regularly check the looseness of screws in the fan and water pump, the tightness of the packing box, the temperature of the bearings, and the quality and amount of lubricating oil to ensure that all components are functioning properly. At the same time, check the dosage and remaining amount of disinfectant.

3. Adjust the dosage and supplement disinfectant as necessary. The fan and water pump should be maintained and repaired every 5000-8000 hours of operation.

Main features:

1. The integrated living method water treatment equipment is beautiful and elegant, with a small floor, and can be placed underground or on flat ground or in a computer room.

2. The biological contact oxidation tank of the overall buried hospital sewage treatment equipment has a small volume, strong adaptability to water treatment, good impact resistance, stable effluent quality, and no sludge expansion. At the same time, a new type of elastic composite three-dimensional packing material produced by our company was used in the biological contact oxidation tank. It has a large specific surface area and is convenient for microbial biofilm formation and detachment. Under the same organic load conditions, it has a higher removal rate of organic matter than other packing materials and can improve the solubility of oxygen in water from the air

3. The integrated hospital sewage treatment equipment uses blowers and underwater aerators in combination with oxygen supply. The equipment has uniform aeration and high oxygen utilization efficiency.

4. The sewage treatment equipment of the integrated hospital adopts a vertical flow sedimentation tank. High surface load, high volume utilization rate, and good sedimentation effect.

5. The integrated hospital sewage treatment equipment is equipped with a fully automatic electrical control system and alarm system The control system is designed to achieve fully automatic operation without dedicated personnel management; The self-control system automatically controls the start and stop of the lifting pump and aeration device according to the size of the water inflow, automatically starts the equipment regularly, and displays automatic fault alarms. The system has two modes: manual and automatic. During debugging and maintenance, manual mode can be used, while automatic mode is used during normal operation.

Qingyang City Hospital Wastewater Treatment Equipment - Hospital Wastewater Treatment Device