Method for monitoring organic deposits in papermaking

A method for measuring the effectiveness of at least one inhibitor that decreases a rate of deposition of organic deposits in a papermaking process, the method comprising:

• providing a quartz crystal microbalance, the quartz crystal microbalance having a top side in contact with a liquid or slurry and a bottom side isolated from the liquid or slurry, the quartz crystal microbalance measuring a vibration frequency;
• monitoring the rate of deposition of the organic deposits from the liquid or slurry by measuring the vibration frequency;
• adding the at least one inhibitor that decreases the rate of deposition of the organic deposits to the liquid or slurry, wherein the adding is based upon the monitoring step;
• and
• re-measuring the rate of deposition of the organic deposits from the liquid or slurry on to the quartz crystal microbalance by measuring the vibration frequency.

A method for measuring the effectiveness of at least one inhibitor that decreases a rate of deposition of organic deposits in a papermaking process simulation, the method comprising:

• providing a quartz crystal microbalance, the quartz crystal microbalance having a top side in contact with a liquid or slurry and a bottom side isolated from the liquid or slurry, the quartz crystal microbalance measuring a vibration frequency;
• the liquid or slurry simulating that of a liquid or slurry found in a papermaking process;
• monitoring the rate of deposition of the organic deposits from the liquid or slurry by measuring the vibration frequency;
• adding the at least one inhibitor to the liquid or slurry, wherein the adding is based upon the monitoring;
• and
• re-measuring the rate of deposition of the organic deposits from the liquid or slurry by measuring the vibration frequency.