Tokyo Electric Power Co. said all three systems of an advanced water processing machine known as ALPS are now in a test operations for the first time simultaneously.

The advanced liquid processing system can remove all radioactive materials except for tritium from tainted water, so its smooth and full-scale operation is a key to considerably reducing the high levels of radiation in the water being stored at the crippled Fukushima No. 1 plant.

The water treatment system has three individual processing systems, labeled A, B and C, and Tepco started the test operation of the B system Thursday. Each system can process about 250 tons daily.