The sewage treatment equipment at Xuzhou Rehabilitation Center has stable performance

Our company's sewage treatment equipment specializes in treating wastewater from hotels, restaurants, sanatoriums, hospitals, residential communities, villages, towns, stations, airports, seaports, ships, factories, mines, tourist attractions, scenic spots, and various industrial organic wastewater similar to domestic wastewater. The treated water can meet national discharge standards.

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1、 Medical wastewater treatment company treatment standards
1. National Medical Institution Wastewater Discharge Standard (GB18466-2005)
2. Pollutant Discharge Standards for Urban Sewage Treatment Plants (GB18918-2002)
3. Design Code for Outdoor Drainage (GBJ14-87)
4. Water Quality Standards for Sewage Discharged into Urban Sewers (CJ18-86)
5. Design Standards for Auxiliary Buildings and Equipment of Urban Sewage Treatment Stations
6. Code for Design of Water Supply and Drainage Engineering Structures
7. Code for Construction and Acceptance of Water Supply and Drainage Structures (GBJ14190)
8. Standard for Environmental Noise in Urban Areas (GB309696)
9. Handbook of Preliminary Budget and Economic Evaluation for Water Supply and Drainage Engineering
The mushroom index in the "Discharge Standards for Water Pollutants in Medical Institutions": Sewage from comprehensive medical institutions and all other medical institutions below the county level or with less than 20 beds can only be discharged after disinfection treatment. Implement first level reinforcement preprocessing.
Emission limits/daily average of water pollutants from medical institutionsThe sewage treatment equipment at Xuzhou Rehabilitation Center has stable performance
Fecal Escherichia coli count/5000
PH / 6-9
Chemical Oxygen Demand COD/250
Biochemical Oxygen Demand BOD/100
Suspended solids SS/60
High allowable discharge concentration (daily average) of basic control items in the "Pollutant Discharge Standards for Urban Sewage Treatment Plants"
Basic Control Project Level 1 Standard Level 2 Standard Level 3 Standard
A standard B standard
1 Chemical Oxygen Demand (COD) (mg/L) 50/60 60/60 100/120 120
Biochemical Oxygen Demand (BOD) (mg/L) 10/20 20/20 30/30 60
3 Suspended solids (SS) (mg/L) 10/20 20/20 30/30 50
4 Animal and vegetable oils (mg/L) 1/20 3/20 5/20 20
5 Petroleum (mg/L) 1/10 3/10 5/10 15
6 Anionic surfactants (mg/L) 0.5/5 1/5 2/5 5
7 Total nitrogen (calculated as N) (mg/L) 15/-20/---
8 Ammonia nitrogen (calculated as N) (mg/L) 5 (8)/15 8 (15)/15 25 (30)/25-
9 Total phosphorus (calculated as P) (mg/L) 1/0.5 1.5/0.5 3/1.5
10 chromaticity/dilution ratio 30/50 30/50 40/80 50
11 pH 6～9/6～9 6～9/6～9 6～9/6～9 6～9
12 fecal coliforms count (individuals/L) 103/-104/-104/--
Note: The control indicators outside the parentheses are for water temperature>12 ℃, and the control indicators inside the parentheses are for water temperature ≤ 12 ℃ /The values before and after represent the current standard value and the original execution standard, respectively
BB pipe 34 2014-11-17
2、 Rehabilitation Center Sewage Treatment Equipment Company Sewage Composition
The nature of hospital wastewater refers to the wastewater generated by hospitals that contains pathogens, heavy metals, disinfectants, organic solvents, acids, alkalis, and radioactivity. The main departments and facilities that generate sewage in hospitals include: diagnosis and treatment rooms, laboratories, wards, laundry rooms, X-ray irradiation. The sources and components of hospital sewage are complex, containing pathogenic microorganisms, toxic and harmful physical and chemical pollutants, and radioactive pollution. It has the characteristics of space pollution, acute transmission, and latent transmission. Without effective treatment, it will become an important pathway for disease spread and seriously pollute the environment.
1) Hospital wastewater is contaminated with pathogenic microorganisms such as feces, infectious bacteria, and viruses, which are contagious and can trigger diseases or cause harm;The sewage treatment equipment at Xuzhou Rehabilitation Center has stable performance
2) Hospital wastewater contains toxic and harmful substances such as acids, alkalis, suspended solids, BOD, COD, and animal and vegetable oils;
3) The wastewater generated during dental treatment, printing, and laboratory testing contains heavy metals, disinfectants, organic solvents, etc., some of which are carcinogenic, teratogenic, or mutagenic, posing a threat to human health and having a long-term impact on the environment;
4) Isotope therapy and diagnosis generate radioactive wastewater. Radioactive isotopes produce a -, β -, and γ - radioactivity during their decay process, which accumulates in the human body and poses a threat to human health.
3、 Principles of Treatment for Medical Sewage Treatment Companies
1. Principle of whole process control. Control the entire process of hospital wastewater generation, treatment, and discharge.
2. Principle of reduction. Strictly implement the hospital's internal hygiene and safety management system, and strictly control and separate sewage and waste sources. Domestic sewage and ward sewage are collected separately in the hospital, that is, source control and clean sewage separation. It is strictly prohibited to dispose of hospital sewage and waste into the sewer system at will.
3. Handle the original on site. Then. To prevent pollution and harm during the transportation of hospital sewage, on-site treatment must be carried out in the hospital.
Four classification guidelines. Classify and guide hospital sewage treatment based on hospital nature, scale, sewage discharge destination, and regional differences.
The principle of combining compliance with risk control. Comprehensively consider the basic requirements for sewage discharge standards in comprehensive hospitals and infectious disease hospitals, while strengthening risk control awareness, and improving the ability to respond to emergencies from the aspects of process technology, engineering construction, and supervision and management.
My good friend, when everything can't go back, at least we have memories. Although you have become a wife, you are still my close sisters. Because we are best friends, we are family. 6 Ecological security principles. Effectively removing toxic and harmful substances from sewage, reducing the production of disinfection by-products during the treatment process, and controlling excessive residual chlorine in the effluent to protect ecological environment safety.
4、 Treatment process of medical wastewater treatment company
The secondary biochemical treatment processes for hospital sewage treatment include activated sludge process, biological contact oxidation process, aerated biofilter process, biofilm process, CASS process, etc. How to treat medical wastewater more effectively requires selecting different treatment processes based on the treatment objectives. Below, we will introduce several different treatment processes:
grating well
Wastewater contains a large amount of suspended and floating solids, and the function of the grille is to intercept and remove these substances, providing protection for the water pump and subsequent treatment units. The grid well is located directly above the lifting well and is constructed with a steel-concrete structure and a regulating pool. A grid room is built above the grid well to prevent the spread of viruses from grid debris. To coordinate the surrounding environment, the outside of the grid well can be beautified. Operators can regularly disinfect, clean, and transport the slag as medical waste for incineration. To reduce the labor intensity of operators, improve the working environment, and ensure the effectiveness of sewage slag removal, one mechanical grid and one basket grid are installed in the grid well. The mechanical grille and basket grille are made of stainless steel material, which is corrosion-resistant. The mechanical grille automatically cleans the slag from the sewage, making it easy to manage, with few faults and low maintenance rate.The sewage treatment equipment at Xuzhou Rehabilitation Center has stable performance
lifting well
Raise the water level, improve the utilization rate of the regulating pool, reduce the amount of land excavation, and invest less. The lifting well adopts an underground enclosed steel-concrete structure, which is built together with other processing units to save infrastructure investment. The top of the pool is covered with soil, and for the convenience of inspection and maintenance, inspection holes are provided at the corners of the lifting well for regular maintenance.
equalization tank
Adjust the quality and quantity of sewage. The regulating pool adopts an underground enclosed steel-concrete structure, which is built together with other processing units to save infrastructure investment. The top of the pool is covered with soil, and for the convenience of inspection and maintenance, inspection holes are provided at the corners of the regulating pool for regular maintenance; There is a submersible mixer in the regulating tank, which is regularly stirred to prevent suspended particles from settling.
Flocculation sedimentation tank
Used to remove suspended pollutants from wastewater, reduce the interference of suspended solids on disinfectants, save the amount of disinfectants used, and provide a good environment for online automatic monitoring of residual chlorine. To reduce the footprint, a vertical flow sedimentation tank is adopted, which adopts an underground reinforced concrete structure and is built together with other treatment units. The top of the tank is covered with soil. For the convenience of inspection and maintenance, inspection holes are set at the corners of the flocculation sedimentation tank to regularly maintain the regulating tank. The sludge is deposited in the sludge hopper and regularly discharged into the sludge concentration tank through the sludge pipe by the sludge pump. The effluent flows automatically into the disinfection contact tank.
Disinfection contact pool
The effluent from the sedimentation tank enters the disinfection contact tank to maintain a certain contact time between the sewage and disinfectant, ensuring that the disinfectant effectively kills bacteria in the water. The effluent is discharged into the municipal pipeline network. According to the "Discharge Standards for Water Pollutants in Medical Institutions" (GB18466-2005), the contact time of sewage in infectious disease hospitals should not be less than 1.5 hours, and the contact time of sewage in comprehensive hospitals should not be less than 1.0 hour. Adopting an underground reinforced concrete structure, it is built together with other treatment units to save infrastructure investment. A diversion wall is installed in the contact tank to avoid short flow. An automatic residual chlorine monitoring device is installed at the outlet of the contact tank to adjust the dosage of disinfectant in a timely manner.
sludge storage tank
Collect and store the sludge generated by the flocculation sedimentation tank, regularly add lime to the tank for disinfection, dehydrate the sludge, transport the dry sludge outside, and reflux the filtrate to the regulating tank. Adopting an underground reinforced concrete structure, it is built together with other treatment units to save infrastructure investment. The top of the tank is covered with soil, and for easy inspection and maintenance, inspection holes are provided at the corners of the sludge storage tank to regularly maintain the regulating tank. A submersible mixer is installed in the sludge storage tank to facilitate mixing during sludge dosing and disinfection.