An H2O Innovation Company

Membrane Autopsy Services

Our Genesys and PWT Membrane Laboratories in Madrid, Spain, and Vista, California, provide a range of services specifically designed to identify the causes of membrane failure in reverse osmosis (RO), nanofiltration (NF) and ultrafiltration (UF) plants.

Autopsy Services Request Pricing

We can provide five levels of autopsy, depending on the nature of the problem and the level of detail you require. Our teams can also carry out plant audits and provide on-site cleaning and troubleshooting assistance.

 

To get pricing for each Tier from our Spanish or US labs, please fill this form.

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Reverse Osmosis / Nano Filtration

Tier 1
Tier 2
Tier 3
Tier 4
Full Element Characterization*
*Full element characterization only available in Vista, California.
Internal/External Inspection
Loss on Ignition
SEM/EDS
FTIR
Microbiological Test
Membrane Integrity (XPS, Fujiware, Dye test)
Flat test rig characterization
Cell Cleaning Tests

Micro / Ultra Filtration

Tier 1
Tier 2
Tier 3
Tier 4
Full Module Characterization*
*Full module characterization only available in Vista, California.
Internal/External Inspection
Pressure Decay
Tensile Testing
Loss on Ignition
SEM/EDS
FTIR
Contact Angle
Soak Study
Mini Module Testing

Types of Autopsy Tests

Following tests and analyses are carried out during these different levels of RO membranes autopsy:

External inspection

External housing integrity, ATD conditions, presence of particles/deposits, damage, etc.

Internal inspection

Presence of fouling, particles or failures on membrane surface, spacer material, carrier material, glue lines, etc.

Fouling identification

Microorganisms count on membrane surface, loss of ignition, SEM-EDX analysis, ATR/FTIR analyses. Additional analytical techniques are available (please, ask for the price of these additional techniques).

Membrane performance parameters

Flow rate and salt rejection values of different coupons measured at flat test rig.

Integrity tests

Methylene Blue test (integrity of polyamide membrane layer), Fujiwara test (contact with halogens), ATR/FTIR analyses, XPS/ESCA.

Cleaning tests

Study of the most suitable cleaning procedure for fouling removal. As complement to autopsies, a study of plant pretreatment could be carried out (extra fees apply) : feed water analysis, analysis of particle size distribution and cartridge filter/ SDI filter by SEM-EDX. Learn more about our Feed Water & Pre-treatment tests >

What is the Membrane Autopsy Process and How Does It Work?

Why conduct a membrane autopsy?

Conducting a membrane autopsy is essential to diagnose the causes of membrane failure and optimizing system performance.

Accurate Identification of Failure Causes

Membrane autopsies allow plant operators to identify the specific causes of  membrane foulingmembrane scaling, or degradation. Common issues like biofouling, organic fouling, inorganic scaling (e.g., calcium carbonate, silica), or chemical damage (e.g., from improper cleaning chemicals) are identified through detailed analysis.

Improved System Performance

Understanding the root cause of membrane failure enables corrective actions that can improve overall plant performance. For example, if fouling from certain contaminants is identified,  pre-treatment processes can be adjusted to mitigate these fouling agents, leading to longer membrane life and better system efficiency.

Cost Savings

Replacing membranes is costly. A membrane autopsy helps determine whether the membrane can be restored through cleaning or if replacement is necessary. It can also reveal if operational practices or water chemistry need to be adjusted to prevent future damage, ultimately saving on future repair or replacement costs.

Optimization of Cleaning Procedures

A detailed membrane autopsy provides insights into whether current cleaning protocols are effective or if they are causing membrane damage. By identifying the exact type of foulant or scale, plant operators can optimize the cleaning chemicals and methods used to ensure proper maintenance without harming the membranes.

Benchmarking Membrane Health

An autopsy can serve as a baseline assessment of membrane health, helping plant operators understand how membranes degrade over time in specific operating conditions. This information is critical for predictive maintenance and avoiding unexpected system downtime.