Autopsy is a chemical and physical examination performed for diagnostic purposes. It is derived from the ancient Greek words “auto” in its own meaning and “psi” meaning seeing. The autopsy process, which we are familiar with from the investigation of the causes of deaths, is used in a similar sense in membrane filters and systems. Chemical and physical analyzes are applied to determine the cause of “death” in membrane filters that have expired or become unusable for various reasons.

Membranes are generally faced with problems of bioclogging, metal oxide clogging, oxidation, abrasion, clay and mineral precipitation. Microbial bioclogging is one of the most important reasons for the decrease in flux and removal rate. Microbial bioclogging occurs due to feedwater parameters, system design errors, and defects in the pretreatment system.

With the membrane autopsy, a clogged, chemically deteriorated, physically damaged and non-filtering membrane is taken and the conditions that create these problems are examined. Analyzes made; Fujiwara Test, SEM-EDS mapping, FTIR spectra acquisition, wastewater characterization analyzes if effluent is given, and additional tests specific to the specified problem. A report is prepared in which the analysis results are compiled, interpreted and possible solution suggestions are included.

For detailed information about membrane autopsy, you can review the 18th chapter of the 3rd volume of the book Membrane Technologies and Applications in Water/Wastewater Treatment and Recovery. You can access the book from the Publications tab.

For an appointment, please write to memtek@itu.edu.tr e-mail address.