Course on Pre-treatment, membrane fouling and scaling

A 3-day intensive course

Lecturer Prof. Jan C. Schippers, MSc. PhD

Lecturer Jan Schippers, Professor Em. in Water Supply Technology at UNESCO-IHE in Delft and private consultant, will give the course. He has extensive professional experience in drinking and industrial water supply projects in Morocco, Qatar, United Emirates, Libya, Gabon, Cab Verde, Namibia, Uzbekistan, France and the Netherlands. His specializations are: consultancy, research, training and education in the fields of integral drinking water treatment systems and desalination/membrane related technologies.

The course includes theory and practice of pre-treatment, fouling and scaling in ultra- and micro-filtration applied for drinking and industrial water production. The impact of the water source – seawater, river water, brackish groundwater and (treated domestic) waste water  – will be discussed in depth.

Topics:
Introduction

-          Desalination and membrane related technologies. Water sources, applications, capacities and cost.
           Ultra- and microfiltration

-          Summarizing principles. Membrane materials, pore size, flux, normalizing permeability and fouling mechanisms.

-          Overview ultra- and micro-filtration elements and systems.

-          Fouling in MF/UF systems, fouling control and pre-treatment.
-          Reverse osmosis and nano-filtration

-          Summarizing principles. Flux, salt passage, rejection and concentration polarization.

-          Overview of RO and NF membranes and elements. Single and multiple staging.

-          Summarizing process design of RO systems with spiral wound elements. Osmotic pressure,

-                          Net driving pressure. Permeate quality and flux.

-          Normalizing data in RO and NF systems in practice.

-          Fouling in RO and NF systems. Spacer and bundle fouling. Suspended and colloidal matter, iron and manganese,                biofouling, organic fouling and scaling.

-          Conventional pre-treatment techniques for RO and NF.  Media filtration, coagulation, sedimentation and flotation.

Particulate fouling and pre-treatment

-          Fouling due to suspended and colloidal matter. Mechanisms of fouling.

-          Parameters to predict fouling. SDI/MFI (0.45) and MFI-UF.

-          Value of fouling predictions with SDI/MFI (0.45) in RO/NF and UF systems.

-          Fouling due to algae and Transparent exo polymers in RO/NF and UF systems.

-          Fouling due to coagulants in RO/NF systems.

-          Pre-treatment in practice for removal of suspended and colloidal matter for RO/NF.

-          Fouling control of iron and manganese in groundwater.
-          Bio-fouling and pre-treatment

-          Pre-treatment for bio-fouling, principles, parameters AOC and BDOC, membrane fouling simulator, biocides.

-          Fouling due to organic matter. Oil compounds, anti-scalants and coagulant aids.

-          Fouling control in membrane bio-reactors.
-          Scaling and anti-scalants

-          Principles of scaling and prediction with computer program.

-          Manual calculations of scaling due to silica, calcium, barium strontium sulphate and calcium fluoride. Calculation of              the Stiff and Davis Index to predict scaling of calcium carbonate.

-          Scaling in seawater reverse osmosis.

-          Scaling control, monitoring and anti-scalants.
-          Chemical cleaning in place (CIP).