Proper Water Management and the Bio-kidney Effect on Paper Mill Water Systems

摘要

1. Proper water loop separation critical to maximize quality, runnability, etc. a. Higher consistency at the end of a water loop creates a greater drop of contaminants going into the next water loop 2. Lack of water storage capacity is most common cause of water system imbalances and process fluctuations (temp, conductivity, influent/effluent flow....) a. Why should I spend money on a big tank that's designed to be empty?? b. AVAILABLE water storage capacity should be equal to total OCCUPIED volume of stored stock 3. Proper clarification and filtration are critical when trying to reuse process water in place of freshwater a. Filtration alone is typically not the answer 4. Anaerobic effluent treatment is increasing in popularity a. Municipal discharge rates increasing b. Significantly lower operating costs than aerobic c. Significantly smaller footprint than aerobic d. No bio-sludge to dewater e. Energy from biogas 5. Benefits of anaerobic technology make it an attractive option as an actual part of the papermaking proces and not just end-of-pipe treatment a. Bio-kidney b. Improved drainage, reduced odor, reduced biocide, easier pH control