From Asahi Shinbun (9:37PM JST 8/22/2011):
東京電力は２２日、福島第一原発の高濃度の放射能汚染水を浄化する施設で、新たに導入した東芝製の装置「サリー」から毎時約３シーベルトという高い放射線量が観測されたため、部品交換できずに処理が停止していると発表した。
TEPCO announced on August 22 that a high radiation of about 3 sieverts/hour was detected at Toshiba's SARRY which was recently introduced as part of the contaminated water treatment system at Fukushima I Nuclear Power Plant. Due to the high radiation, TEPCO could not exchange parts [cesium towers], and the water processing [using SARRY?] had to be stopped.
東電によると、サリーは１８日に運転を始め、２２日朝からセシウムを吸着する部品を初めて取りかえる作業を行っていた際、配管の一部で高い放射線を観測した。線量を下げないと部品が交換できないため、東電は水で配管内の放射性物質を洗い流そうとしているという。
SARRY started the full operation on August 18. According to TEPCO, workers were exchanging the parts that absorb cesium for the first time in the morning of August 22, when they found a spot with high radiation on a pipe in the system. Unless the radiation level gets lower, the workers cannot exchange the parts. TEPCO is trying to flush out the radioactive materials in the pipe with water.
So, as with Kurion's system, Toshiba's SARRY also needs human intervention to exchange highly contaminated cesium absorption towers. Toshiba's towers supposedly have built-in lead sleeves inside the towers, but it is the pipe that's radiating 3 sieverts/hour radiation.
Oops. When it comes down to, it is the basic items like pipes, pipe fittings, hoses and pumps that give.