Session 31 - Water treatment

[CEST2019_00936] Application of dissolved air flotation (DAF) and liquid ferrate on mitigation of algal organic matter (AOM) during algal blooms
by Abdullah H., Alshahri A., Fortunato L., Leiknes T.

In the Middle East, Harmful algal blooms (HABs) are considered a major contributor to membrane biofouling in Seawater Reverse Osmosis desalination plants. The presence of HABs in the raw feed water leads to the increase of membrane fouling rate, the increase of chemical consumption, leading to a temporary plant shutdown. Effective pretreatment can reduce the amount of organic foulants reaching the RO membrane and alleviate the problem of flux decline during RO operation and increasing the membrane lifetime.

Session: 31, Room: A, at Fri, 09/06/2019 - 16:30 to 16:45
Oral presentation in Water treatment
[CEST2019_00897] Application of TPMS architectures in water technology: Amazing potential for cost and energy savings and reduced environmental impacts
by Arafat H.

Additive manufacturing, also known as three-dimensional (3D) printing, is a state of the art technology that has been gaining momentum in several applications including aerospace, automotive industry and the medical field. Recently, 3D printing has also gained attention as a promising fabrication pathway for key components of membrane-based systems for desalination and water treatment as well.

Session: 31, Room: A, at Fri, 09/06/2019 - 15:00 to 15:30
Oral presentation in Water treatment
[CEST2019_00504] New generation of patterned membranes for water treatment
by Asad A., Sameoto D., Sadrzadeh M.

Membrane technology is an energy-efficient separation process that is expected to dominate the water treatment industry. However, the high vulnerability of membranes to fouling has limited the expansion of sustainable and energy-efficient membrane processes. Surface patterning has been proven to be an effective method to improve the performance of membranes by increasing the permeate flux and lowering the attachment of fouling materials on membrane surfaces.

Session: 31, Room: A, at Fri, 09/06/2019 - 16:15 to 16:30
Oral presentation in Water treatment
[CEST2019_00171] Water quality control of Aposelemis Dam Reservoir
by Gyparakis S., Diamadopoulos E.

The aim of this study is to check the vertical water quality profile of Aposelemis Reservoir. The water quality was studied in nine (9) different water reservoir depth points: S9: 0 m, S8: 02 m, S7: 03 m, S6: 05 m, S5: 07 m, S4: 09 m, S3: 10 m, S2: 13 m and S1: 15 m. A sudden change in the temperature of the water was observed at the water depth of 7 m (thermocline phenomenon) and a change in pH (from pH> 8 to pH <7.5) at the depth of 3 m. A sharp increase in metal concentration was identified in greater water depth, as well as prevalent the soluble form of them (Mn, Fe, etc.).

Session: 31, Room: A, at Fri, 09/06/2019 - 15:30 to 15:45
Oral presentation in Water treatment
[CEST2019_00175] Monitoring of the main operational parameters of Aposelemis Water Treatment Plant (WTP)
by Gyparakis S., Diamadopoulos E.

The purpose of this study is to present the annual monitoring data of the main water quality operational parameters of Aposelemis Water Treatment Plant (WTP). The main quality parameters studied are: turbidity, pH, suspended solids, conductivity, manganese (Mn), coliform bacteria, Escherichia Coli and Clostridium Perfringens of the untreated and treated surface water of the Aposelemis reservoir. There is a seasonal variation in the turbidity and in the microbiological parameters of WTP incoming water. The Suspended Solids fluctuation follows the entry water turbidity fluctuation.

Session: 31, Room: A, at Fri, 09/06/2019 - 16:45 to 17:00
Oral presentation in Water treatment
[CEST2019_00162] Polyethersulfone/Polyamide11Cost Effective, Antifouling- Nanofiltration Blend Membrane
by Abdallah H., Shalaby M.S., Alanezi A.A., Shaban A.M.

Nanofiltration membranes (NF) are considered and used extensively in seawater softening, food, textile, and mining industries for the removal of di-and multi-valents to increase RO lifetime by decreasing fouling rates, and chemical cleaning intervals. In this work, blend membranes of polyethersulfone and polyamide11 were prepared by phase inversion process. The membranes were characterized by scanning electron microscopy (SEM),pore size distribution, mechanical properties and membranes performance.

Session: 31, Room: A, at Fri, 09/06/2019 - 16:00 to 16:15
Oral presentation in Water treatment
[CEST2019_00062] Potential of Using Real-time OiW Monitoring for Control of Produced Water Treatment in Offshore Oil & Gas Production
by Zhenyu Y., Durdevic P., Jespersen S., Hansen D.S.

From the process control point of view, any reliable and online Oil-in-Water (OiW) measurement could provoke a brand new control paradigm for produced water treatment. However, the real-time OiW monitoring is still an open and ad-hoc situation in recent decades.

Session: 31, Room: A, at Fri, 09/06/2019 - 15:45 to 16:00
Oral presentation in Water treatment