Which of the following is NOT a process in the water treatment system for hemodialysis?

In the context of hemodialysis, the water treatment system involves several critical processes to ensure that the water used during the procedure meets stringent safety and quality standards. Water purification is essential for removing harmful contaminants, while distribution refers to the system that ensures purified water reaches the dialysis machines in a safe manner. Pre-treatment entails initial steps to remove impurities before the water undergoes further purification processes.

Filtration, however, is indeed a component of the water treatment process but may not be specifically designated as a standalone process in the same way the other options are. Instead, it is often a sub-process incorporated within the broader categories of water purification and pre-treatment. While filtration is crucial for clarifying water and removing solid particulates, the other terms distinctly represent broader and well-defined processes integral to the overall water treatment framework in hemodialysis. Thus, identifying filtration as a separate and distinct process could lead to the misunderstanding that it stands alone, similar to the other processes mentioned.