The Delaval purifier's ability to remove solids relies on which mechanism?

The Delaval purifier uses centrifugation as its primary mechanism for separating and removing solids from liquids. This process involves spinning the mixture at high speeds, which creates a strong centrifugal force. As a result, denser particles, such as solids, are forced outward to the bottom or sides of the container, separating them from the less dense liquid.

Centrifugation is particularly effective in applications like the Delaval purifier, commonly used in dairy processing to separate cream from milk, where the solid content needs to be effectively removed to ensure product quality. The high-speed spinning enables the effective separation of solids, even when they are present in small quantities, ensuring that the final product is clear of unwanted particles.

In contrast, distillation relies on differences in boiling points to separate components, filtration uses a physical barrier to remove solids from liquids, and decantation involves pouring off the liquid layer to leave solids behind. While these methods play roles in various purification processes, they do not utilize the high-speed separation advantages that centrifugation does. This makes centrifugation the correct choice for the operation of the Delaval purifier.