A former nuclear power plant engineer Yuzo Uehara made additional proposals today.
Proposal 2503102: After overcoming the current situation, I think that the preparation work for the permanent solution would begin within 3 months. In order to get closer to the site and avoid radiation, whoever consider it, they have no choice but the culvert method. As a temporary solution for the current situation, first of all, using containers allows us to work under the safe condition. It would be a long long battle for all of us Japanese.
Solution for wide spreading radiation 2510304: When it rains, it soaks through the ground. Use storm sewers and such to treat sewage. Then send it to the sea. Where should we stop contamination? The issue is a massive scale. Build huge tunnels or pools underground, and dilute sewage, then discharge. That’s the only way. Building smaller cascaded underground pools is relatively easy. I would call it the underground pool cascading method.
According to Yomiuri Online news today, the US Military is now cooperating with Japan and going to use a barge (or barges) to bring massive amount of fresh water near Fukushima Daiichi Nuclear Power Plant. This plan is very similar to what the ex-engineer has been proposing, he said on Twitter.