Note: Intro -- About the Conference Steering Committee -- Conference Chair -- Conference Co-chairs -- Special Advisors -- Publications Co-chair -- Communications and Outreach Co-chair -- Sponsorships Co-chair -- Preface -- About the Conference -- Goals and Objectives -- Specific Aims -- Introduction -- Contents -- About the Editors -- WATER: Groundwater Studies -- 1 Modeling the Effect of the Pumping Variations on the Groundwater Quality in the Semiarid Aquifers -- Abstract -- 1 Introduction -- 2 Study Area Description -- 3 Methodology -- 3.1 Modeling Technique -- 3.2 Data Collection -- 3.3 Model Building -- 3.4 Performance Evaluation -- 4 Results -- 5 Discussion -- 6 Conclusions -- References -- 2 Assessment of Groundwater Aquifer Impact from Artificial Lagoons and the Reuse of Wastewater in Qatar -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 6 Conclusion(s) -- Acknowledgements -- References -- 3 Temporal Groundwater Level Prediction Using Multivariate Geostatistics: A Case Study from Sfax Superficial Aquifer (Tunisia) -- Abstract -- 1 Introduction -- 2 Study Area -- 3 Groundwater Level Datasets -- 4 Methodology -- 5 Result and Discussion -- 6 Conclusion(s) -- References -- 4 Integration of Electromagnetic Method and Resistivity Depth Sounding in the Evaluation of Groundwater Potentials of Araromi Phases 1 and 2, Akungba-Akoko, Southwestern Nigeria -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 4 Discussion -- 5 Conclusion(s) -- Acknowledgements -- Appendix -- References -- 5 Contribution to the Study of Fluoride Ion Concentrations in Groundwater and Its Impact on the Desert Areas of Southeastern Algeria -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion and Recommendation -- References. , 6 Groundwater Stability Assessment with Geospatial Modeling Using GIS: A Case Study of Illizi Town, Algeria -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results -- 4 Discussion -- 5 Conclusion -- Acknowledgements -- References -- 7 Efficiency Assessment of AHP and Fuzzy AHP in Suitability Mapping for Artificial Recharging (Case Study: South of Kashan Basin, Isfahan, Iran) -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Discussion -- 4 Conclusion -- References -- WATER: Water Quality -- 8 Statistical Methods for the Evaluation of Water Quality -- Abstract -- 1 Introduction -- 2 Exploratory Data Analysis -- 2.1 Graphical Tools -- 2.1.1 Box-Whisker Plot -- 2.1.2 Histogram -- 2.1.3 Stem-and-Leaf (SL) Display -- 2.1.4 Probability Plot -- 2.1.5 Scatterplot -- 2.2 Univariate and Bivariate Descriptive Statistics -- 2.2.1 Univariate Descriptive Statistics -- Measures of Location -- Measures of Spread -- Measures of Symmetry -- Outliers and Data Transformation -- 2.2.2 Bivariate Descriptive Statistics -- Correlation -- Linear Regression -- 3 Multivariate Statistics -- 3.1 Principal Component Analysis -- 3.2 Cluster Analysis -- 3.3 Discriminant Analysis -- 4 Water Quality Index -- 5 Conclusion(s) -- References -- 9 Research on Innovative Materials and Technologies for Water Treatment and Water Desalination: A Conceptual Analysis from 1969 to 2019 -- Abstract -- 1 Introduction -- 2 Methodology and Dataset -- 3 Results and Discussion -- 4 Conclusion(s) -- Acknowledgements -- References -- 10 The Microbial and Physicochemical Analysis and Treatment of Groundwater of South Punjab, Pakistan -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Sample Collection -- 2.2 Microbial and Physicochemical Analysis -- 2.3 Construction of Robust Water Purification System -- 3 Results -- 4 Discussion -- 5 Conclusion -- References. , 11 Removal of Cyanotoxins in Drinking Water Using Advanced Oxidation Processes -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Materials -- 2.2 Ozone Stock Solution -- 2.3 Simulated Qatar Water -- 2.4 Ozonation -- 2.5 Solid Phase Extraction -- 2.6 Analysis -- 3 Results -- 3.1 Effect of Ozone Dose -- 3.2 Effect of pH -- 3.3 Effect of Hydrogen Peroxide -- 3.4 Kinetic Evaluation -- 4 Discussion -- 4.1 Effect of Ozone Dose -- 4.2 Effect of pH -- 4.3 Effect of Hydrogen Peroxide -- 4.4 Kinetic Evaluation -- 5 Conclusion(s) -- Acknowledgements -- References -- 12 Microplastic Detection and Analysis in Water Samples -- Abstract -- 1 Introduction -- 2 Method -- 3 Results -- 4 Summary -- Acknowlegement -- References -- 13 Column Adsorption Studies of Phenolic Compounds on Nanoparticles Synthesized from Moroccan Phosphate Rock -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Adsorbent -- 2.2 Materials Characterization -- 2.3 Sorption Experiments -- 3 Results -- 4 Conclusion(s) -- References -- 14 Summary of Field Trial Results of the Treatment of Contaminated Water Using Non-fouling Super Hydrophilic Functionalized Ceramic Membranes -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 3.1 Guatemala City Trials -- 3.2 Desalination Pre-treatment -- 3.3 Produced and Frac Flowback Water Trials -- 4 Conclusions -- Acknowledgements -- References -- 15 Preliminary Study for Phosphate Recovery from Starch Factory Wastewater Using Porous Aluminum -- Abstract -- 1 Introduction -- 2 Approach and Methods -- 3 Results and Discussions -- 4 Conclusions -- Acknowledgements -- References -- 16 Removal of Organic Compounds from Olive Mill Wastewater by Flotation-Anaerobic-Aerobic Processes and Lime Treatment -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Oil Extraction Process -- 2.2 OMW Samples. , 2.3 Treatment Procedure -- 2.4 Analytical Methods -- 3 Results -- 4 Discussion -- 4.1 OMW Characterization After flotation-Anaerobic-Aerobic Treatment -- 4.2 Lime Treatment -- 5 Conclusion(s) -- References -- 17 Sustainable Wastewater Treatment Technologies for Appropriate Agriculture Use in Jordan -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Multi-stage Vertical Filter (ECO-2) -- 2.2 Recirculating Vertical Filter (ECO-1)-Wetland2 -- 2.3 Modified Septic Tanks -- 2.4 Sequencing Batch Reactor (SBR) -- 2.5 Sludge Treatment Unit -- 3 Results and Discussion -- 3.1 Performance of Various Pilot Plants at Fuhies -- 3.2 Nitrogen Transformations/Elimination -- 3.3 TSS Reduction -- 3.4 Microbial Analysis -- 4 Conclusion(s) -- Acknowledgements -- References -- WATER: Advances in Desalination -- 18 Study of Reverse Osmosis Water Purification Processes of Seawater by Laâyoune Desalination Plant Under Desert Climate Southern Morocco -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Geographic Laâyoune Desalination Plant -- 2.2 Laâyoune Desalination Plant -- 2.2.1 Osmosis Systems -- 2.2.2 Re-mineralization Station -- 3 Results -- 3.1 Hydrometric Titer -- 3.2 Alkali Metric Titer (TAC) -- 3.3 Turbidity -- 3.4 Sulfate (SO42−) -- 3.5 Chloride -- 3.6 Electrical Conductivity (CE) -- 3.7 Calcium (Ca2+) -- 3.8 Boron (B) -- 4 Conclusion -- Acknowledgements -- References -- 19 Water Desalination for Environment-Friendly Cities Using Clean and Green Renewable Energy-Based Processes -- Abstract -- 1 Introduction -- 2 Design of the SMCEC Desalination Process -- 3 Optimization of the Designed Desalination Unit -- 4 Discussion -- 5 Conclusion -- References -- 20 The Prototype Development of Cost-Effective Water Purification System for Remote Areas and Its Efficiency Against Heavy Metals -- Abstract -- 1 Introduction -- 2 Materials and Methods. , 2.1 Study Site -- 2.2 Sample Collection -- 2.3 Construction of Water Purification Prototype -- 2.4 Heavy Metal Analysis -- 3 Results -- 4 Discussion -- 5 Conclusion -- References -- 21 Emulsion Transport Through Graphene Oxide Modified Polyvinylidene Fluoride (PVDF) Membranes -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 2.1 Materials -- 2.2 Methods -- 2.2.1 HD-SDS-W Emulsion Preparation -- 2.2.2 GO Membrane Modification -- 2.2.3 Membrane Operation -- 2.2.4 Characterization -- 3 Results and Discussion -- 3.1 Emulsion Characterization -- 3.2 Surface Wettability -- 3.3 Unwetted 7.5 nm GO-PVDF Membrane Surface Chemistry -- 3.4 Membrane Fouling -- 3.5 Emulsion Transport -- 3.6 Possible Factors Influencing the Performance of Modified Membranes -- 3.6.1 Impeller Movement -- 3.6.2 Humidity and Aging -- 4 Conclusion(s) -- Acknowledgements -- References -- 22 Experimental Study of Solar Water Desalination Using Evaporative Cooling (ICSEWEN19) -- Abstract -- 1 Introduction -- 2 Materials and Methods -- 3 Results and Discussion -- 4 Conclusion -- References -- 23 Heat Transfer Performance of Falling Film Evaporators Used in Multi-effect Desalination (MED) Plants -- Abstract -- 1 Introduction -- 2 Review of Heat Transfer Coefficient Correlations -- 3 Results and Discussion -- 4 Conclusion -- Acknowledgements -- References -- 24 Recent Advances in the Physical Methods to Combat Membrane Fouling: An Emphasis on the Periodic Feed Pressure Technique -- Abstract -- 1 Introduction -- 2 Methodology -- 3 Periodic Pressure Field Technique -- 4 CFD Model and Computational Framework -- 5 CFD Scenarios' Studies: Results and Discussion -- 5.1 Scenario One: Oil Droplets Freely in the Stream -- 5.2 Scenario Two: Droplet Pinning at the membrane's Pore -- 5.3 Scenario Three: Oil Droplet Rejection -- 5.4 Scenario Four: Oil Droplet Permeation. , 5.5 Scenario Five: Oil Droplet Breakup.