Toshiba thinks SARRY can reduce the amount of radioactive materials in the water to one-millionth, and process 1,200 tonnes of water per day.
From TEPCO's latest tweet:
お知らせ■本日(8/1)-8/5まで、設置工事が完了した第二セシウム吸着装置(サリー)の通水試験を実施する予定です。その後、国の確認をいただき、試運転を経て問題がなければ運用を開始する見込みです。
Notice: We finished the installation of the second cesium absorption unit (SARRY), and will conduct a flow test from August 1 to 5. After that, we will seek approval from the government, we will conduct the test run. If there is no problem during the test run, we will start the full operation.
Good luck, TEPCO and Toshiba.