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Hospital radioactive sewage treatment and discharge outlet online monitoring system

At present, storage decay is the main treatment method for hospital radioactive wastewater. According to the Requirements for Radiation Protection and Safety in Nuclear Medicine (HJ1188-2021), radioactive waste liquid shall be stored and decayed in a decay tank with a maximum half-life of more than 10 times (for those containing iodine-131, it shall be stored for more than 180 days). After the monitoring results are approved by the examination and control department, the radioactive waste liquid shall be discharged in the manner specified in 8.6.2 of GB18871.

Key words: waste gas

Product Description

Hospital radioactive sewage treatment and discharge outlet online monitoring system

Product introduction

At present, storage decay is the main treatment method for hospital radioactive wastewater. According to the Requirements for Radiation Protection and Safety in Nuclear Medicine (HJ1188-2021), radioactive waste liquid shall be stored and decayed in a decay tank with a maximum half-life of more than 10 times (for those containing iodine-131, it shall be stored for more than 180 days). After the monitoring results are approved by the examination and control department, the radioactive waste liquid shall be discharged in the manner specified in 8.6.2 of GB18871.

According to the "Discharge Standard of Water Pollutants in Medical Institutions" (GB18466-2005), comprehensive medical institutions and other medical institutions, low-level radioactive wastewater should be treated by decay pool, total α, total β sampling monitoring at the decay pool outlet, total α is not more than 1Bq/L, total β is not more than 10Bq/L.

For the hospitals that use 131I for the treatment of A cancer with a large number of patients, the traditional continuous channel push-flow decay treatment with 10 half-lives often cannot meet the requirements of the standard emission.

 

Major function

Multi-stage interlocking control independent tank decay pool, intelligent control of the whole process of radioactive medical wastewater storage;
The waste gas in the decay pool area is collected in a closed manner. Disinfection, deodorization and nuclide adsorption are carried out by means of UV photocatalysis, high-energy ion deodorization, activated carbon adsorption, etc., to solve the radioactive waste gas escape caused by volatile nuclides.
The radiation detector automatically monitors the activity concentration of 131I (iodine), 99mTc (technetium), 18F (fluorine) and other nuclides in radioactive medical wastewater.
The on-site monitoring data can be uploaded to the back-end monitoring center platform server in real time and can be maintained and controlled remotely.
Measuring the total amount of radioactive wastewater discharge and automatically calculating the total activity of radioactive wastewater discharge;
Anti-leakage protection of tank decay pool and video online monitoring of decay pool area and radioactive waste water discharge outlet.

 

 

Main indicators

1, radiation detector measurement range: 3.7×10 ~3.7×10 Bq/L;
2. Energy resolution: ≤9% (@661.7KeV);
3. Waste water with different half-life nuclides is intelligently classified and collected in different decay pools for natural decay treatment.

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Contact Information

  zhgrhl@126.com

  0756-6332383

  http://zhgrhl.com/

  3016, No. 33, Jinmeng Lane, Xiangzhou District, Zhuhai


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