If brine becomes saturated with ammonia in a small compression plant, what should you do?

If brine becomes saturated with ammonia in a small compression plant, the appropriate course of action is to run it to the sewer and make a new batch. This choice is correct because allowing the brine to remain saturated with ammonia can lead to a range of operational and environmental issues. Saturation indicates that the brine has reached its maximum capacity for ammonia, which could result in reduced performance in the cooling process or may potentially overheat equipment and cause corrosion.

By diverting the brine to the sewer, you effectively eliminate the concentration of ammonia that could hinder operational efficiency and compliance with environmental regulations. Making a new batch allows you to maintain the proper chemical balance necessary for optimal functioning of the system.

The other options, while they may offer some treatment alternatives, do not effectively address the immediate saturation problem. Running brine through a cooling tower or treating it with lime can manage ammonia levels, but such methods may not be sufficient to resolve the saturation issue thoroughly. In the case of ensuring the integrity and safety of the system, making a fresh batch is the most reliable solution.