An integrated device for coprecipitation and filtration of radiocesium in seawater

• In this paper, a new design of an integrated device for co-precipitation and filtration was introduced.
• The side-filter connected with an air-supplier prevents the retention of the sediment particle on the filter paper.

To improve the pretreatment efficiency of radiocesium in seawater, a prototype machine based on a new design of an integrated device for coprecipitation and filtration was developed and tested in the laboratory for its possibility and efficiency, the results show the that the efficiency of pretreatment of radiocesium can be improved more than one orders of magnitude compared to traditional methods. And the results from experiments on effect of settle time show that immediately filtration of solution after reaction will not affect the absorption of AMP to radiocesium in seawater.