How to dump into a fertile（如何让垃圾场变成良田）
N-Viro International Corporation develops and licenses its technology to municipalities and private companies. Their patented processes use lime and/or mineral-rich, combustion byproducts to treat, pasteurize, immobilize and convert wastewater sludge and other bio-organic wastes into biomineral agricultural and soil-enrichment products with real market value. The company has generated sales in excess of $40 million dollars, since its initial public offering in October of 1993, which was underwritten by Robertson Stephens, Raymond James, Oppenheimer & Co., and Paine Webber.
