Removal of Arsenic from Drinking Water using Alginate Based Adsorption Media in the Point of Use (PoU) Filtration Technology (Duration: 2019-2021; Role: Team Leader)

o  Develop nano-alumina (Al2O3) and iron (Fe) impregnated alginate adsorbents using different levels of Al2O3 and Fe.

o  Evaluate performance of the adsorbents through lab. experiments by varying arsenic concentrations in deionized water.

o  Optimize the adsorbent media through binary mixture for the best arsenic removal performance

o  Develop the point–of–use (PoU) low-cost alginate based filtration technology using the binary mixture of the adsorbents


Removal of Lead (Pb) from Drinking Water using the Low-Cost Activated Carbon (Duration: 2018-2019; Role: Team Leader)

o  Develop activated carbon (AC) from the waste of jute stick (agricultural waste)

o  Optimize performance of the AC in removing Pb from drinking water through acid or alkaline functionalization

o  Perform lab-scale experiments following the Design of Experiment and the column test

o  Optimize the dose, pH, temperature and reaction time for the best performance

o  Develop water treatment filters using the new materials


Disinfection Byproducts (DBPs) in Desalinated and Blend water: Human Exposure and Risk Analysis (Duration: 2016-2018; Role: Team Leader)

o Investigate occurrences of DBPs in desalinated and blend water at different stages of desalination

o Analyze shift of DBPs from chlorinated to brominated and iodinated DBPs in bromide and iodide rich seawater.

o Investigate the effects of groundwater on the formation and distribution of brominated and iodinated DBPs in blend water

o Investigate the effects of seawater intrusion on the formation and distribution of brominated DBPs in drinking water

o Perform human exposure and risk analysis from DBPs in supply water in the coastal regions


Effects of Water Stagnation in Plumbing System on Human Health Risk from Heavy Metals in Tap Water (Duration: 2015-2018; Role: Team Leader)

o Investigate occurrences of heavy metals in drinking water at different locations in Al-Khobar, Saudi Arabia.

o Perform bench scale experiments by varying water temperature, pH, chlorine content, water flow rate and contact time. The interaction effects of these factors will be explained through factorial design;

o Develop models for heavy metal discharges from water distribution networks into drinking water.

o Investigate the effects of water stagnation in the premise plumbing on heavy metal concentrations in drinking water.

o Develop low-cost technology based point of use (PoU) device for removal of heavy metals from drinking water.


Multi-Criteria Decision-Making for the Selection of Drinking Water Treatment Technology

(Duration: 2012-2014; Role: Team Leader)

o Investigated variability of HPC and OP bacteria, and DBPs in drinking water in the WDS, PP and HWT;

o Developed and validated models for bacteria regrowth and DBPs formation in WDS, PP and HWT

o Predicted human exposure and risk from DBPs in municipal water; and

o Developed and applied multicriteria decision-making framework to select the best approach for water treatment and disinfection.


Model-Based Exposure and Risk Analysis for Disinfection Byproducts in Swimming Pool (Duration: 2013-2015; Role: Team Leader)

o  Investigated occurrences and variability of DBPs, and parameters affecting formation and distribution of DBPs in water entry point, tap water feeding swimming pool and swimming pool (CSP) water and air prior to and after swimming;

o  Developed models to predict DBPs in the CSP through explaining the correlation structure and significance of parameters;

o  Investigated bromide conversion into brominated DBPs in swimming pool;

o  Analyzed human exposure to DBPs, risks and financial burden from exposure through incorporating multiple pathways.

o  Developed approaches to reduce human inputs into swimming pools


Selecting Dam Locations for Maximizing Rainwater Harvesting in Saudi Arabia (Duration: 2013-2016; Role: Team Leader)

o Explained the rainfall variability, patterns, trends and identified the scopes of runoff collection.

o Identified the locations of new dams to collect surface runoff and estimated the runoff using the Watershed Modeling System (WMS) software and hydrologic models

o Estimated the cost savings and carbon emission reduction through using surface runoff as an alternative to desalinated seawater

o Estimated crop water requirements and water losses during the agricultural activities.


Management of Water Resources for Sustainable Development of the Kingdom of Saudi Arabia (Duration: 2011-2014; Role: Team Leader)

o Investigated available resources of water and demands in various sectors.

o Developed the frameworks for reusing treated wastewater in agriculture and partial fulfilment of domestic demands

o Investigated the effects of climate change on water resources and water quality parameters in dam reservoirs

o Developed models for optimization of water resources and demands for multi-source multi-user scenarios


Selected RESEARCH SEMINARS (Excluding conferences)

Mar 2019

Disinfection Byproducts in Swimming Pool, Chemical risk and Control Strategy, The 8th Int. Conference on Swimming Pool and Spa, 18-22 March, 2019, Marseille, France (Keynote Speaker)

Apr 2017

Desalinated and Blended Water in Saudi Arabia: Human Exposure and Risk Analysis from Disinfection Byproducts. University of Sharjah, Sharjah, UAE

Apr, 2016

Modeling and Control of Disinfection Byproducts in Drinking Water and Swimming Pool, University of Western Ontario, Canada

Feb, 2016

Pollution Prevention: Development of Strategic Framework, Memorial University of Newfoundland, Canada

Nov 2011

Multicriteria decision-making for selecting the best processes of water treatment and disinfection, Auckland University, NZ

Mar 2010

Disinfection byproducts in drinking water: Risk-Based Decision-Making, American University of Sharjah, UAE 

Jan 2010

Multicriteria decision making for selecting the best approaches for water treatment and disinfection. Department of Environmental Health Sciences, University of Massachusetts – Amherst, MA