Abstract: A polymeric complex supporter for controlling oxygen-released compounds (PCS-ORCs) and a method for manufacturing the same is disclosed. PCS possesses a porous surface and internal coralloid-like channel structure that can accommodate ORCs with a high ratio (up to 92 wt %) to polymers. In applications, the PCS-ORCs can be shaped as various types and be coupled with other solids that could be used as delivery tools. As PCS-ORCs is delivered into a water-containing environment, water molecules can diffuse into the internal channels through the surface pores and then react with ORCs. Due to the tunable structure properties of PCS, the produced oxygen can be release out through the surface pores for one to six months long. In comparison with powder-type ORCs, PCS-ORCs can exhibit better application potentials in terms of time-release technology, oxygen delivery and environmental responsibility.

Abstract: An adsorption unit comprising an adsorbent hollow fibre in which the fibre includes an active component and means for transmitting heat.

Abstract: A method and a device for treating waste printed circuit boards with molten tin include process of throwing printed circuit boards into a molten tin bath in treating furnace, letting the boards proceed crashing, stirring and carbonizing treatment for separating copper foil, thermosetting plastic and glass fiber. Then these three kinds of materials are respectively separated from each other by taking advantage of their different specific gravity and collected in separate tanks to recover copper and other metals from the waste printed circuit boards.