Hospital buried integrated sewage treatment equipment

Zhengyuan Environmental Protection is a professional hospital sewage treatment equipment manufacturer, the nemesis of hospital sewage, and an expert in environmental protection in daily life. All models are sold directly by the manufacturer at wholesale prices. The latest hospital sewage treatment equipment technology in 2020 has also become a leader in the environmental protection industry. Let's take a look at the underground integrated sewage treatment equipment.

Price of hospital buried integrated sewage treatment equipment:Starting from 10000 yuan, please consult customer service for specific pricing.

Analysis of Hospital Sewage Quality:

Hospital wastewater mainly comes from the wastewater discharged by patients in their daily lives, including some medical wastewater containing a large amount of Escherichia coli. The main ones are feces and washing wastewater. The hospital's domestic sewage contains a large amount of organic matter, such as cellulose, starch, carbohydrates, and lipoproteins; It also often contains pathogenic bacteria, viruses, and parasitic eggs; Inorganic salts such as chlorides, sulfates, phosphates, bicarbonates, and sodium, potassium, calcium, magnesium, etc. The overall characteristic is high nitrogen, sulfur, and phosphorus content, and under the action of anaerobic bacteria, it is prone to produce odorous substances.

Performance of hospital buried integrated sewage treatment equipment

The main advantages of the buried integrated sewage treatment equipment in hospitals are: simple process, flexible control, and reduced investment. Equipment refinement, easy maintenance, and cost savings in equipment maintenance; Low oxygen process saves electricity and has low operating costs; The hospital's underground integrated sewage treatment equipment adopts the zero discharge process of biochemical sludge, which completely degrades the remaining sludge using the sewage treatment system, reduces sludge pollution, saves investment in sludge treatment equipment and costs of sludge treatment and disposal.

Structure of hospital buried integrated sewage treatment equipment:

1. Preprocessing module

The preprocessing module mainly performs functions such as preliminary interception of incoming water, balancing water quality and quantity, and storage, forming an integrated structure.

2. Biological processing module

The biological treatment module mainly biodegrades organic pollutants in sewage. Including biochemical reaction tank, sedimentation tank, sludge tank and corresponding power equipment, the overall dimensions of the equipment are 9.0m × 9.0m × 4.0m,

3. Disinfection processing module

The disinfection processing module includes a disinfection pool and a medication disinfection device

The underground integrated hospital sewage treatment equipment in this project adopts a semi above ground type according to the actual situation of the hospital site, with a top cover closed and green artificial turf laid. Surrounded by stainless steel railings, it is aesthetically pleasing and blends seamlessly with the surrounding environment. After the engineering debugging and operation were normal, the sampling and monitoring results of the environmental protection monitoring station showed that after the sewage was treated by this system, all indicators were far superior to the requirements of the discharge standards, and passed the monitoring acceptance.

Advantages of underground integrated sewage treatment equipment produced by Zhengyuan Environmental Protection

(1) By using this integrated equipment to treat domestic sewage from residential hospitals and other areas, the COD removal rate can reach over 80%, and the treated effluent is far superior to the national comprehensive sewage discharge standard.

(2) The equipment has a compact structure and can be completely buried underground, saving land occupation; It can also be placed on the ground to coordinate with the surrounding environment.

(3) Due to the use of advanced suspended packing submersible aeration technology, the impact of noise on the surrounding environment has been solved. It is easy to install and maintain, automatically controlled, and produces less sludge, saving investment and reducing the labor intensity of operators.

(4) Engineering practice has proven that this process has good treatment effects, mature and reliable technology, stable operation, and is simple and easy to implement. It is one of the preferred processes for hospital sewage treatment in the future.

(5) Due to the large green space area in hospitals, if sewage is treated with integrated treatment and advanced treatment measures such as filtration are added, it can be reused for irrigating green spaces, flushing roads, etc., which can save water resources.

Underground integrated hospital sewage treatment equipment process:

The process used in the underground integrated hospital sewage treatment equipment must ensure that the treated water meets the standard. The three main processes used are: primary treatment to enhance treatment effectiveness, secondary treatment, and simple biochemical treatment.

1、 The principle of process selection is:

1.1 Infectious disease hospitals must adopt secondary treatment and carry out pre disinfection treatment.

Hospitals at or above the county level that discharge treated effluent into natural water bodies must adopt secondary treatment.

1.3 Comprehensive hospitals that discharge treated effluent into urban sewers (downstream with secondary sewage treatment plants) recommend using secondary treatment, and for those using primary treatment processes, the treatment effect must be strengthened.

For small comprehensive hospitals in economically underdeveloped areas, simple biochemical treatment can be used as a transitional measure when conditions are not available, and then gradually achieve secondary treatment or primary treatment with enhanced treatment effects.

2、 Primary processing technology to enhance processing effectiveness

For comprehensive hospitals that treat effluent and ultimately enter secondary treatment urban sewage treatment plants, their treatment efficiency should be strengthened, the removal rate of SS should be improved, and the amount of disinfectant used should be reduced. There are two ways to enhance the effectiveness of primary treatment: modifying the existing primary treatment process to improve removal efficiency and adopting primary strengthening treatment technology.

2.1 Process flow

1. Upgrade the existing primary treatment process to enhance the treatment effect

The renovation should make full use of existing treatment facilities according to the actual situation, and renovate the structure or operation mode of septic tanks and contact tanks that are widely used in existing hospitals. If necessary, some facilities should be added to improve the treatment effect as much as possible, in order to meet the discharge standards of hospital sewage treatment.

2. First level reinforcement processing

For sewage treatment in general hospitals (without infectious disease wards), the process of "pretreatment → first level enhanced treatment → disinfection" can be adopted. By using coagulation precipitation (filtration) to remove particles carrying viruses and bacteria, the disinfection effect is improved and the amount of disinfectant used is reduced, thereby avoiding the adverse effects of excessive disinfectant use on the environment.

The hospital sewage enters the regulating tank through the septic tank, and an automatic grille is installed at the front of the regulating tank. A lifting water pump is installed inside the regulating tank. After the sewage is lifted, it enters the coagulation sedimentation tank for coagulation sedimentation. The effluent from the sedimentation tank enters the contact tank for disinfection, and the effluent from the contact tank meets the discharge standards.

The sludge and slag generated in the sewage treatment station, such as the regulating tank, coagulation sedimentation tank, and contact tank, are centrally disinfected and transported outside. Disinfection can be achieved through methods such as pasteurization with steam or adding lime.

2.2 Process Characteristics

The first level of enhanced treatment can improve the treatment effect, remove particles carrying viruses and bacteria, enhance the effectiveness of subsequent disinfection, and reduce the amount of disinfectant used. The transformation of existing primary treatment processes can fully utilize existing facilities and reduce investment costs.

2.3 Scope of Application

The first level enhanced treatment that strengthens the treatment effect is suitable for comprehensive hospitals where the treated effluent ultimately enters the second level urban sewage treatment plant.

3、 Secondary processing technology

Process flow description

The secondary treatment process is "regulating tank → biological oxidation → contact disinfection". The hospital sewage enters the regulating tank through the septic tank. Automatic grille is installed at the front of the regulating pool. A lifting water pump is installed in the regulating tank. After the sewage is lifted, it enters the aerobic tank for biological treatment. The effluent from the aerobic tank enters the contact tank for disinfection, and the effluent meets the discharge standards.

The sludge and slag generated in the sewage treatment station, such as the regulating tank, biochemical treatment tank, and contact tank, are centrally disinfected and transported for incineration. Disinfection can be achieved through methods such as pasteurization with steam or adding lime.

Collect sewage and feces from infectious disease hospitals separately. Domestic sewage directly enters the pre disinfection tank for disinfection treatment and then enters the regulating tank. The patient's feces should be independently disinfected first and then enter the septic tank or treated separately through the sewer (as shown in the dashed line). Each structure must operate in a sealed environment and be ventilated through a unified ventilation system. Waste gas is discharged after disinfection, which can be achieved through a UV disinfection system.

2 Process characteristics

The aerobic biochemical treatment unit removes organic pollutants such as CODcr and BOD5. Aerobic biochemical treatment can choose contact oxidation, activated sludge, and high-efficiency aerobic treatment processes, such as membrane bioreactors, aerated biofilters, etc. By adopting an efficient aerobic treatment process with filtering function, the concentration of suspended solids can be reduced, which is beneficial for subsequent disinfection.

3 Scope of application

Suitable for sewage treatment in infectious disease hospitals (including comprehensive hospitals with infectious disease wards) and comprehensive hospitals discharging into natural water bodies.

4、 Simple biochemical treatment process

4.1 Process flow

The process of simple biochemical treatment is "biogas purification tank → disinfection". The biogas purification tank is divided into a solid-liquid separation zone, an anaerobic filter, and a sedimentation filtration zone. The main functions of the three zones are to remove suspended solids, adsorb colloids and soluble substances, further remove and degrade organic pollutants, and finally remove residual suspended solids and degrade organic pollutants through sedimentation and filtration units to ensure effluent quality. The generated biogas is treated differently according to the gas volume. When 1m3 of sludge is used to produce more than 15m3 of biogas, it is collected and utilized; When the amount of biogas produced from 1m3 of sludge is less than 15m3, collect and burn it for treatment.

4.2 Process Characteristics

The biogas purification tank utilizes the principle of anaerobic digestion to degrade solid organic matter. The treatment efficiency of biogas purification tanks is superior to that of septic tanks and biogas tanks, with low cost, low power consumption, and simple management.

4.3 Scope of Application

As a transitional measure for hospital sewage treatment in remote mountainous areas and economically underdeveloped regions, gradually achieve secondary treatment or enhance the effectiveness of primary treatment.

The above is the explanation from Zhengyuan Environmental Protection on the underground integrated sewage treatment equipment for hospitals. We hope it can be helpful to everyone. If you need to purchase underground integrated equipment, you can contact us for sales and customize it according to the actual size of the hospital.