RCHB Integrated Weinan Hospital Wastewater Treatment Equipment

Weinan City Hospital Wastewater Treatment Equipment

Picture the scene

The equipment includes integrated wastewater treatment equipment, as well as integrated waste gas treatment equipment. The buried integrated equipment transforms the project into a small device and contains the core process of wastewater treatment.

Product features:

■The equipment can be buried underground, and the surface can be used as green or square land;

■The equipment does not occupy surface area, does not require building, and does not require heating and insulation;

■Low operating costs of equipment;

■The equipment can achieve fully automatic operation according to the set water level control mode;

■The equipment has good treatment effect and the effluent meets the national medical institution sewage discharge standard GB18466-2005;

Application scope:

■Hospitals, health centers, central blood stations, private hospitals, specialized hospitals, disease control centers, epidemic prevention stations, medical institutions.

Equipment refers to the sewage discharged by township health and medical institutions into the natural environment or urban pipelines. The water quality varies depending on the nature, scale, and location of different hospitals. The main pollutants contained in the sewage of the health center are: protozoa (parasite eggs, pathogenic bacteria, viruses, etc.), organic matter, floating and suspended solids, radioactive pollutants, etc. The total bacterial content in untreated raw sewage exceeds 10 ^ 8/mL. The sources and components of hospital wastewater are complex, containing primary microorganisms, toxins, harmful physical and chemical pollutants, and radioactive contamination;

■Hospital sewage refers to the wastewater discharged from hospitals (general hospitals, specialized hospitals, infectious disease hospitals, and other types of hospitals, blood stations, disease control centers, community health service centers) into the natural environment or urban pipelines. The water quality varies depending on the nature, scale, and location of different hospitals. The main pollutants contained in hospital wastewater are pathogens (parasite eggs, pathogenic bacteria, toxins, etc.), organic matter, floating and suspended solids, radioactive pollutants, etc. The total bacterial content in untreated raw wastewater exceeds 10 ^ 8 cells/mL. The sources and components of hospital wastewater are complex, containing primary microorganisms, toxins, harmful physical and chemical pollutants, and radioactive pollution. It has characteristics such as spatial pollution, acute infection, and latent infection. Without effective treatment, it can become an important pathway for disease spread and seriously pollute the environment

■Our company has developed an underground hospital medical sewage treatment equipment that adopts the world's biological treatment process - biological contact oxidation method combined with chlorine dioxide generator disinfection process. It integrates the removal of BOD5, COD, NH3-N, and Escherichia coli bacteria, and is currently an efficient sewage treatment equipment. The treated sewage meets the national medical institution sewage discharge standard GB18466-2005.

★technological process:

Anaerobic Biochemical Treatment - Aerobic Biological Contact Oxidation - Secondary Sedimentation - Chlorine Dioxide Contact Disinfection - Standard Discharge

technological process

Adopting biofilm method: anaerobic aerobic (A/0) treatment process. A/O, also known as anaerobic+aerobic biological contact oxidation, is a mature biological treatment process that has the advantages of high volumetric load, fast biodegradation rate, small footprint, low infrastructure investment and operating costs. It can replace the ordinary activated sludge method used in urban sewage treatment and is particularly suitable for the treatment of medium and high concentration industrial wastewater, with low investment, small footprint, and high treatment efficiency. This process adopts a combination of biological contact oxidation and precipitation, and is mature and reliable. Sludge is precipitated in the equipment, and a portion of the sludge is further oxidized and decomposed due to the action of dissolved oxygen, while another portion is lifted into the sedimentation tank. The system sludge only needs to be regularly pumped in the sedimentation tank. The working program of the main control equipment such as the wind turbine and submersible sewage pump in the system is input into the PLC machine to achieve automatic operation, reduce the workload of operation, and minimize unnecessary human damage.

1. Grille:

After being collected by the production wastewater management network system, it enters the subsequent treatment system after passing through a coarse grid. Coarse grille is mainly used to intercept large floating objects in sewage, ensuring the normal operation of subsequent treatment structures and effectively reducing treatment loads, providing assurance for the normal operation of the system.

2. Sewage regulating tank:

Used to regulate water volume and ensure uniform water quality, so that sewage can enter the subsequent treatment unit more evenly. Setting up a pre aeration system in the regulating tank can improve the impact resistance of the entire system, reduce the foul odor of sewage in anaerobic conditions, and reduce the design scale of subsequent treatment units. Submersible sewage pumps are installed in the sewage tank to lift and send sewage to the subsequent treatment units.

3. Hypoxia pool:

The integrated medical sewage treatment equipment is equipped with elastic packing in the anoxic tank to intercept small suspended solids in the sewage and remove some organic matter. The nitrification solution after reflux in the anoxic tank is subjected to denitrification and denitrification, which improves the removal rate of ammonia nitrogen in wastewater. The sewage treated with hypoxia enters the aerobic biological treatment tank.

4. Contact oxidation tank:

Most of the organic matter in the original wastewater of the equipment is degraded and purified here. Aerobic bacteria use fillers as carriers and utilize the organic matter in the wastewater as food to decompose it into inorganic salts, thereby achieving the purpose of purification. The survival of aerobic bacteria requires sufficient oxygen, that is, there is enough dissolved oxygen in sewage to achieve the purpose of biochemical treatment. The air in the aerobic tank is provided by a fan, and a new type of semi soft biological packing material is used in the tank. The packing material has a large surface area ratio, long service life, easy film formation, and corrosion resistance. The bottom of the tank is equipped with a microporous aerator, which increases the transfer rate of dissolved oxygen. At the same time, it has the advantages of light weight, non aging, non clogging, and long service life.

Contact the two major components inside the oxidation tank:

Packing: This process uses a new type of three-dimensional elastic packing, a layer dense high-efficiency biochemical packing, which has the advantages of large specific surface area, long service life, easy film formation, and corrosion resistance. At the same time, the filler has a certain degree of stiffness and can cut the bubbles in the sewage at multiple levels, increasing the efficiency of dissolved oxygen. In addition, the fillers are not easily agglomerated, avoiding blockage of the oxidation tank.

Aerator: This process uses a microporous aerator, which has a higher dissolved oxygen transfer rate than other aerators. Its major features are non aging, light weight, long service life, as well as corrosion resistance and resistance to clogging.

5. Sedimentation tank:

After being treated in a biological contact oxidation tank, the wastewater flows automatically into a secondary sedimentation tank to further precipitate and remove detached biofilms and some organic and inorganic small particles. The sedimentation tank is based on the principle of gravity. When the wastewater containing suspended solids flows from bottom to top, the substances are precipitated by gravity. The effluent after sedimentation in the secondary sedimentation tank is clearer and more transparent. The secondary sedimentation tank is a vertical flow sedimentation tank, which uses a sludge pump to regularly lift sludge and gas into the sludge digestion tank. The treated water after sedimentation enters the subsequent treatment equipment.

6. Disinfection pool:

After sedimentation, the virus and Escherichia coli indicators in the sewage still do not meet the discharge standards. In order to eliminate the virus and Escherichia coli, chlorine tablet disinfectant is added for disinfection treatment. The folded plate form is used to rely on its own gravity and directly discharge into nearby municipal pipelines.

7. Sludge digestion tank:

The remaining sludge discharged from the sedimentation tank is subjected to aerobic digestion and stabilization treatment in the tank to reduce the volume of sludge and improve its stability. The amount of sludge after aerobic digestion is relatively small, and it is regularly removed and transported by the environmental sanitation department's sludge trucks or subjected to sludge dewatering treatment. The supernatant is refluxed to the regulating tank.
Product features:

■The equipment can be buried underground, and the surface can be used as green or square land,

■The equipment does not occupy surface area, does not require building, and does not require heating and insulation.

■Low operating costs of equipment

■The device can achieve fully automatic operation according to the set water level control mode

★Application scope:

■First level hospital, second level hospital, third level hospital

■Township health centers, community health service centers, central blood stations, private hospitals, specialized hospitals, dental hospitals, etc.

Director Mou from the Disinfection Department of Harbin Epidemic Prevention Station believes that hospitals should strengthen their correct understanding of the importance of sewage treatment. Some hospital staff have a weak sense of responsibility and lack initiative in treating sewage. The treatment of sewage is also forced, and relevant departments should meet standards during inspections and relax their work when not inspected. In fact, this is both harmful to others and oneself, ultimately due to the hospital's insufficient understanding of the importance of sewage treatment work.

Director Yi of the Harbin Municipal Pollution Control Department said that for units that do not meet the national requirements for sewage discharge standards, we will carry out rectification within a specified period of time. We will handle units that have facilities but are idle and not in use, and impose fines according to the Water Pollution Prevention and Control Law. Many hospitals are currently expanding, and sewage treatment facilities should be placed in an important position during construction. The approach adopted by the outpatient department of Heilongjiang Provincial Hospital (Nangang) and the Second Hospital of Traditional Chinese Medicine University is to design, construct, and use sewage treatment facilities simultaneously with the main project during the expansion process of the hospital's main building. This will improve and enhance the level of sewage treatment.

Weinan City Hospital Wastewater Treatment Equipment