Published April 2020 | Version v1
Book Metadata-only

Phosphoric acid immersion electrolysis decontamination of radioactive fouling 17-4PH stainless steel

Creators

  • 1. China Institute of Atomic Energy, Beijing (China)

Description

In order to study the phosphoric acid immersion electrolysis decontamination method of radioactive contamination 17-4PH stainless steel, a phosphoric acid immersion electrolysis experimental device was designed, the simulation experiment was carried out with the uncontaminated valve stem of the nuclear power plant as the research material and the best electrolytic decontamination parameters, including electrolyte concentration, current density and electrolyte temperature, were obtained. According to the best experimental parameters, the stained stem material was decontaminated. The results show that the test device is simple, safe and reliable. When the sample test time is 15 s, the sample surface β count has dropped from the initial 93/s to 2/s. It has been below the environmental background value of 9/s, the decontamination efficiency has reached 98%, and the decontamination requirements for the stained samples have been achieved. (authors)

Part of:
Progress report on nuclear science and technology in China (Vol.6). Proceedings of academic annual meeting of China Nuclear Society in 2019, No.5--Nuclear and Radio Chemistry sub-volume

Additional details

Publishing Information

Publisher
China Atomic Energy Press
Imprint Place
Beijing (China)
ISBN
978-7-5221-0522-2
Imprint Title
Progress report on nuclear science and technology in China (Vol.6). Proceedings of academic annual meeting of China Nuclear Society in 2019, No.5--Nuclear and Radio Chemistry sub-volume
Imprint Pagination
105 p.
Journal Page Range
p. 53-57

Conference

Title
2019 academic annual meeting of China Nuclear Society
Dates
20-23 Aug 2019
Place
Baotou (China)

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
53115053
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CONTAMINATION; CURRENT DENSITY; DECONTAMINATION; ELECTROLYSIS; ELECTROLYTES; NUCLEAR POWER PLANTS; PHOSPHORIC ACID; SIMULATION; STAINLESS STEELS; SURFACES; VALVES
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CLEANING; CONTROL EQUIPMENT; EQUIPMENT; FLOW REGULATORS; HIGH ALLOY STEELS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; LYSIS; NUCLEAR FACILITIES; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; POWER PLANTS; STEELS; THERMAL POWER PLANTS; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
5 figs., 1 tab., 8 refs.