Automatic control method and device for treating radioactive sewage from hospital

Abstract

The invention discloses an automatic control method and device for treating radioactive sewage in a hospital. The method includes the following steps: when the attenuation pools are all empty, the sewage first enters the first attenuation pool, the first pool is filled, the water inlet valve is closed, the water inlet valve of the second pool is opened, and the sewage enters the second pool. Pool, when the last pool is filled with water up to 95%, empty the first pool, then close the water inlet valve of the last pool, open the water inlet valve of the first pool, and repeat the same steps later. The device for realizing the method includes: the biodegradation pool is connected with 2-10 attenuation pools, and each attenuation pool has a water inlet and a water outlet, which are respectively connected with the water inlet pipe and the drain pipe; each attenuation pool has an electric valve for water inlet And drainage electric valve, the liquid level sensor is installed on the side wall; the electric valve, liquid level sensor are connected with the field controller. The number of said decay pools is three. The method and the device enable the radioactive sewage to be discharged up to the standard, and avoid harm to the surrounding environment and the human body.

Description

Technical field [0001] The invention relates to an automatic control method for radioactive sewage treatment, in particular to a storage type automatic control method for radioactive sewage treatment in a hospital. [0002] The invention also relates to a hospital radioactive sewage treatment device, which includes a biodegradation pool and an attenuation pool. Background technique [0003] The nuclear medicine department of the hospital will produce a large amount of radioactive sewage in the process of using nuclides for diagnosis and treatment. The direct discharge of these sewage will have a great impact on the surrounding environment, causing the groups in the area where the sewage flows to be exposed to harmful radiation, which is harmful to human health. cause harm, in order to solve the harmful radiation of nuclides, the sewage containing radiopharmaceuticals must be treated to meet the discharge standards. Radionuclides have a common feature that as time goes on, th...

AI Technical Summary

Problems solved by technology

However, since each attenuation pool is connected, the new sewage entering the lower part of the attenuation pool is easily mixed with the upper part of the sewage, and it will be discharged from the upper drain pipe without attenuation, which cannot meet the discharge standard, thus causing serious damage to the surrounding environment. harm to human health

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