Professor Al-Khatib has experience in a wide range of areas including water recourses management and quality, environmental assessment, wastewater management, advocacy, coordination and networking. Al-Khatib has an extended experience in the development and carrying research and evaluation projects, professional work experience in engineering hydrology, water resources management, engineering hydraulics, environmental impact assessment, environmental monitoring, training and evaluation of medical waste, solid waste, water and sanitation and urban environment projects. He is an expert in social and environmental health, promoting environmental public awareness through training, organizing and conducting awareness campaigns and workshops in environmental education and health. He is a member in the national committees for setting environmental standards and regulations such as swimming pools water quality. Al-Khatib is an expert in academic quality evaluation and development and supervised more than 40 MSc. theses in the above mentioned topics.