RCHB Integrated Hanzhong Hospital Wastewater Treatment Equipment - Hospital Wastewater Treatment Device

Hanzhong City Hospital Wastewater Treatment Equipment - Hospital Wastewater Treatment Device

scope of application

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

Instructions for use:

Before starting up, check whether the connections of each water pump and pipeline are firm;

Connect the power supply and turn on the buttons of each water pump in sequence, checking whether each water pump is running in the direction of the arrow. If it is reversed, the phase line must be replaced and rotated in the direction of the arrow.

Scope of application and main purposes:

The integrated hospital sewage treatment equipment is suitable for the comprehensive sewage of small and medium-sized hospitals and clinics; It is also suitable for the treatment of domestic sewage in hotels, restaurants, airports, villas, amusement parks, residential areas, and other places.

technological process:

Explanation: The underground hospital sewage treatment equipment consists of two parts: a regulating tank and a biochemical integrated equipment. The electrical control cabinet is arranged outdoors or installed in the computer room.

3.1 Process Description

The sewage flows into the regulating tank, and the lifting pump lifts the sewage into the integrated sewage treatment system, which consists of an aerobic tank, a sedimentation tank, a disinfection tank, and a sludge tank.

Process flow description:

A. Regulating pool

Due to the low elevation of the incoming water, it is not possible to directly flow into the underground hospital sewage treatment equipment. Therefore, an additional water collection and lifting pool will be added in front of the biochemical integration equipment. There are two submersible lift pumps installed in the water collection lifting pool, which lift the wastewater in the pool to the integrated sewage treatment equipment. (The outlet elevation of the regulating pool in this sewage treatment plant exceeds that of the integrated hospital sewage treatment equipment. There is no equipment to lift the regulating pool pump, and the regulating pool sewage flows into the integrated hospital sewage treatment equipment by itself.)

Ｂ. Biological contact oxidation tank (including primary and secondary oxygen tanks)

In the biological contact oxidation tank, oxygen is continuously supplied to the sewage through underwater aerators, and aerobic microorganisms are used to oxidize organic matter, greatly reducing COD and BOD in the sewage and achieving discharge standards.

C. Sedimentation tank

After biochemical treatment, the sewage enters the sedimentation tank, and the suspended solids in the sewage partially settle at the bottom of the tank. The clarified sewage flows out from the overflow weir at the other end of the sedimentation tank. The sludge accumulated in the sedimentation tank is returned to the contact oxidation tank through the sludge pump.

D. Disinfection pool

The disinfection tank receives overflow water from the sedimentation tank. Sodium hypochlorite solution is added to the disinfection tank to kill toxic and harmful microorganisms such as Escherichia coli that remain in the treated water, ensuring the safety of the effluent.

E. Sodium hypochlorite dosing device

The sodium hypochlorite dosing device consists of a metering pump and a dosing bucket, which contains sodium hypochlorite disinfectant. The metering pump continuously and evenly adds disinfectant to the disinfection tank.

Process description:

The design of integrated hospital sewage treatment equipment is mainly aimed at the treatment of hospital sewage and similar industrial organic sewage. Its main treatment method is to use a relatively mature biochemical treatment process - biological contact oxidation method. The water quality design parameters are calculated according to the general domestic sewage water quality design, and the influent BOD is₅The average value is less than 200mg/L, and the effluent BOD₅The average value is less than 10 mg/L.

A. The regulating pool adopts a fiberglass structure. The regulating tank stores wastewater and adjusts the imbalance of water quality and quantity to ensure the continuous and stable operation of the sewage treatment system.

B、 The total volume of the biological contact oxidation tank is 11.6.0m³The inflow rate is 30.0 tons/day, and the pool is filled with composite filling materials. The integrated sewage treatment equipment is equipped with underwater aerators. When the primary lift pump is started, the aeration blower works continuously; When the primary lift pump stops, the aeration blower works intermittently. This operating mode not only ensures the oxygen demand of microorganisms, but also fully saves energy and reduces unnecessary power consumption.

C、 The sedimentation tank adopts an inclined plate sedimentation tank. The biological fillers shed from the biological contact oxidation tank enter the sedimentation tank with the water flow, and the sludge and water are separated in the sedimentation tank. The clean water enters the disinfection tank through the overflow weir, and the shed biofilm enters the sludge hopper. In order to improve the denitrification and phosphorus removal efficiency of the sewage treatment system and reduce the amount of sludge, a sludge return pipe is installed at the bottom of the sedimentation tank. The sludge at the bottom of the tank is discharged to the sludge storage tank, and the sludge in the storage tank is regularly discharged to the primary contact oxidation tank.

D. Disinfection pool. The disinfection tank receives overflow water from the sedimentation tank, with an effective volume of 4.0m³Add sodium hypochlorite solution to the disinfection tank to kill toxic and harmful microorganisms such as Escherichia coli that remain in the treated water, ensuring safe effluent.

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.

Hanzhong City Hospital Wastewater Treatment Equipment - Hospital Wastewater Treatment Device