Dive summary: 

• The National Physical Laboratory (NPL) and partners In2Tec Ltd and Gwent Electronic Materials Ltd, have developed a print circuit board that separate in hot water, allowing the pieces to be easily recycled.
•  Normally valuable materials are difficult to recover in electronics, small pieces, lots of soldering, but with the new technology, the pieces separate on their own allowing 90% of the components to be reused.
• It is estimated that with the current method of producing electronics, around 85% of print circit borad waste goes to landfills, around 70% of that waste is non-metalic content that can not be recycled.

From the article: 

The National Physical Laboratory (NPL), along with partners In2Tec Ltd (UK) and Gwent Electronic Materials Ltd, have developed a printed circuit board (PCB) whose components can be easily separated by immersion in hot water. The work was part of the ReUSE project, funded by the UK government's Technology Strategy Board.
The electronics industry has a waste problem - currently over 100 million electronic units are discarded annually in the UK alone, making it one of the fastest growing waste streams. ...