Micro-organisms that cling to pipe surfaces are referred to as?

Micro-organisms that cling to pipe surfaces are referred to as sessile organisms. This term describes organisms that are fixed in one place and do not move freely. In the context of micro-organisms, sessile forms are often found adhering to surfaces in biofilms, which are communities of microorganisms encased in a protective matrix that they produce. These biofilms can form on various surfaces, including pipes, where they can affect water quality and system operation.

Understanding the nature of sessile organisms is crucial in water treatment and management, as they can influence corrosion, scaling, and potential contamination. In contrast, planktonic micro-organisms are free-floating and not attached to surfaces, highlighting the significance of the sessile nature in certain environmental and operational contexts. The design, maintenance, and monitoring of water systems must take into account the dynamic between sessile and planktonic organisms to ensure effective control measures are in place.