The Research Of The Decommissioning Technique Route Of The Old Radioactive Waste Storeroom Of JiLin Province

The first nuclear technology application radioactive waste storeroom injilin province was set up and run in at yilaxi town of yongji county in 1965. Itstopped receiveing the radioactive waste in 1989. It has been run out for 24years.The old storeroom had stopped using in 1989, but because of theHistorical reasons, it had not obeyed to the rule of the city radioactive waste inthe period of construct. so the storeroom suffers from the important trouble.By carrying on inquisition to the radioactive waste storeroom of jilin province,judging by the datas on-the-spot monitor and the datas through the years, wedesigned a safety and reasonable route of back service.1. Technique project of decommissioning process1.1 The stage of the preparationWe must do some preparations before carrying out the project. First,wemust set up a ample workplace so that the large machines can work in it. weshould prepare all kinds of appliances, including the ventilators. We shouldplace all the instruments on the right place, and connect them with the centercomputer, so that we can precisely observe and record the results in time. onthe east of the workplace, we should set up a field to meet the emergency. Onthe northwest of the old storeroom, we set up a packing wokshop, so we canpack the radioactive waste and chemistry product in it.1.2 The stage of the enforcementIn this stage we mainly open the storeroom, take back the waste andidentify them, and classify the storage of the storeroom, clean up the oldstoreroom completely, set up a normal permanent pit on the unadorned place,so that we can cover up the radioactive waste which can be cover uppermanently.1.2.1 open the storeroomAccording to analyze the conditions of the three cellers, we should obeythe Principles. We should do it from easy to difficult, and in this process wecan acquire some experience.1.2.2 The route of the identification and recaptureAccording to the category and the nature of the radioactive waste of thestoreroom, we should draw up a series of routes carefully.At first, we canidentify the waste by the external. Then we dispose them by the chart.1.3 The stage of the recoveryWe should bury the waste which are lower than the limit, and detect thesurface of the workplace. If the soil of the surface are lower than the limit, wecan plant trees on it. At last, we should clean up all the tools which used in theproject, including the moving workroom.2. The safety control of the decommissioning processWe should set up a storeroom in the process of the project, so we cancontrol the whole process modernly. we should connect the detection with thecomputer. So the computer can record the results automatically.