Products/Services for Digester Management

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NEW ANALYSIS METHODS FOR BETTER DIGESTER MANAGEMENT Elektroniikkatie 9, FIN-90570 Oulu, Finland Kehr a am ontie 3, FIN-87101 Kajaani, Finland Lentokent ankatu 11, FIN-33100 Tampere, Finland kraft cooking (continuous/batch), alkali to wood ratio, white liquor addition, residual alkali, alkali...

The unsung heroes in anaerobic digesters are. progressive cavity pumps. They move tons of solid. waste, allowing the digester to process biosolids. en route to generating electricity and other forms. of renewable energy. AD's are catching on in this country. In 2009,. a "flagship" anaerobic...

...and silicates of magnesium. The scale deposition problems can be mitigated by procurement of good quality wood furnish and good debarking systems. Proper mechanical design and operation modifications in chemical recovery, the digester area, and the brownstock screen room as well as proper operation...

Sludge distribution chamber -- Combustible gas, oxygen, hydrogen sulfide. Basement - generator area -- Combustible gas. Digester - basement -- Combustible gas, hydrogen sulfide. Digester - first floor -- Combustible gas, hydrogen sulfide. Filtration room -- Hydrogen sulfide. Odor removal equipment...

...with the process development, we have also developed a control strategy to even out variations from the digester. The important factors used for the control are the production rate, the inlet kappa number, the chemical charges and the temperature in the second stage. The efficiency of the control system...

...concentration of 0.1-0.3 M NaCl. This can be achieved by choosing a proper soap composition which appears to be between 1:1 and 2:1 for a fatty acid/resin acid soap ratio. The ratio can be achieved by addition of tall oil in the digester, as is done in some mills that pulp birch and aspen. System closure...

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