31. Oxidize organic compounds or hydrogen; this produces hydrogen sulfide as a waste product . 32. Health hazards go beyond just those who work with waste products . 33. A fuel cell produces electricity from hydrogen, with water the only waste product . 34. Experimental nuclear fusion reactors produce free neutrons as a waste product . 35. Most of the remainder use sodium fluoride, a waste product from aluminum smelting operations. 36. It recently introduced a fiber made out of agricultural waste products like corn husks. 37. But the film also repeatedly made reference to a cargo of nuclear waste products . 38. Many negatively charged metabolic waste products are eliminated from the body by the kidneys. 39. Anything left as a waste product inside this confined space? 40. There are three mills in Bintulu that process wood-waste products .