1. The Waste Reduction Approach to Aquatic Toxicity of Food Processing Effluent.;Richardson,1991
2. European Wastestream System Could Pay Off for U. S.;Honer;Dairy Field,1991
3. Wastewater Treatment Technologies.;Farmer;Pollut. Eng.,1991
4. The Influence of Raw Wastes Dosing System on Technological Parameters of Rotating Biological Disc (RBD) Process.;Wojciech,1991
5. Comparative Studies of Activated Sludge and Rotating Biological Disc Process (I).;Klimiuk,1991