The Mainichi Daily News has an article about the water treatment system.
TEPCO seems to be happy that the "operating rate of a radioactive water treatment system at Fukushima No. 1 Nuclear Power Plant stood at "a record 77.4 percent between Aug. 3 and 9" after the system became operational on June 28.
But a TEPCO deputy chief said "ther will be a slight delay in achieving the utility's objective of treating radioactive water through the circulating injection cooling system within this year due to a series of mishaps."
Lighting and malfunctioning pumps temporarily stalled treatment operations, bring the amount of contaminated water to 121,140 cubic meters as of Aug. 9, down by only 2740 cubic meters from July 12. "TEPCO says it plans to gradually increase the system's operating rate to 80 to 90 percent.
All of which means a tremendous volume of water remains to be treated.