Other scientists have looked at materials like leaf compost or manure , while professor brown favors composts high in iron content , like the sludge from wastewater treatment .
A thick brown sludge is tarnishing its once blue waters .
一层粘稠的褐色淤泥正在玷污曾经湛蓝的湖水。
Authorities say the sludge itself will take a year to clean up .
当局称需要花费一年的时间来清理这些有毒淤泥。
Once the sludge dries , the lead may be even more dangerous .
而且一旦这些淤泥干燥后,铅的危害性将会更大。
The surface is skimmed off while the sludge is pumped away to a separate treatment facility .
浮面的将被撇去,淤泥被泵到另外一个处理装置。
It is unclear where the sludge will be stored for the long term .
目前还不清楚污泥将被存在哪里进行长期保存。
Warmer weather over the last few days is already drying out the top layer of the sludge , creating dust .
过去几天内,暖和的天气正致使污泥表层干燥,引发尘土飞扬。
At least , until the snow hardened into ice , the whiteness turned to sludge and everyone started to moan again .
至少,在积雪硬化成冰,白雪转成污泥,人们开始抱怨之前是如此。
Even if the water treatment is successful , tepco next faces the task of dealing with the highly radioactive sludge that will be left over from the decontamination process .
即使是水处理获得成功,东京电力未来还将面临水净化过程中留下的高放射性污泥的处理问题。
Yet in the last couple of days most attention focused on the dangers of the sludge reaching the danube , and potentially poisoning water in downstream countries like romania .