أرشيف الوسم : waste water

   INTRODUCTION                 Chemical precipitation in water and wastewater treatment is the change in form of materials dissolved in water into solid particles. Chemical precipitation is used to remove ionic constituents from water by the addition of counter-ions to reduce the solubility. It is used primarily for the removal of …

Introduction           Generally the term of ceramics (ceramic products) is used for inorganic materials (with possibly some organic content), made up of nonmetallic solid prepared by the action of heat and subsequent cooling. Ceramic materials may have a crystalline or partly crystalline structure, or may be amorphous (e.g., a glass). …

  1- Introduction           New water-treatment goals for disinfection by-products (DBP) and for microbial inactivation have increased the need for new disinfection technologies. Water and wastewater systems will need to use disinfection methods that are effective for killing pathogens without forming excessive DBP [1]. Ozone is an attractive alternative. This technology …

Introduction Coagulation is an essential phenomenon in industrial wastewater treatment. Inorganic coagulants (salts of multivalent metals) are being commonly used due to its low cost and ease of use. However, their application is constrained with low flocculating efficiency and the presence of residue metal concentration in the treated water. Organic …

Flotation [1]          Flotation may be used in lieu of the normal clarification by solids-downward-flow sedimentation basins as well as thickening the sludge in lieu of the normal sludge gravity thickening. Water containing solids is clarified and sludges are thickened because of the solids adhering to the rising bubbles of …

Introduction                Anthropogenic activities include rapidly growing industrialization, a series of new constructions, many fold increases in transportation, aerospace movements, developmental and enhancement in technologies, that is, nuclear power, pharmaceutical, pesticides, herbicides, agriculture, and so on. These are all the most desirable activities for human development and welfare, but they …

Selected Nanomaterials applications in waste water treatment Ahmed Hasham (M.Sc. Env. Chemistry) /  Ahmedhasham83@outlook.com Introduction: Water pollution is the most difficult environmental challenges facing society. Therefore, the release of pollutants from sewage or industrial wastewater in the must be considered as a threat to the environment. Characterizing the physical, chemical …

بعض تطبيقات تقنية النانوتكنولوجي في معالجة مياه الصرف بقلم/ أحمد محمد هشام ماجستير كيمياء تحليلية Ahmedhasham83@outlook.com مقدمة يعد تلوث المياه أصعب التحديات البيئية التي تواجه المجتمع. لذلك ، يجب اعتبار الملوثات من مياه الصرف الصحي أو مياه الصرف الصناعية تهديدًا للبيئة. ولذلك يعتبر تميّز الجوانب الفيزيائية والكيميائية والبيولوجية للمياه الخام …

ACTIVATED CARBON PRODUCTION & APPLICATIONS What is activated Carbon? Activated carbon is a form of carbon that has been treated to make it extremely porous and thus to have a very large surface area available for adsorption and chemical reactions. It is usually derived from charcoal (also called active carbon, …

Heavy metals removal using modified leaves biomass By: Ahmed Hasham M.Sc. Env. Analytical Chemistry Introduction: Continuous industrial development has resulted in raised levels of toxic heavy metals. This has been entangled, almost everywhere, in most industrial applications involving leakage and redistribution of heavy metals, such as metallurgy, iron and steel, …

الكربون النشط هو شكل من أشكال الكربون الذي تم معالجته لجعله مساميًا للغاية ، وبالتالي يكون لديه مساحة كبيرة جدًا متاحة للادمصاص والتفاعلات الكيميائية. أهمية الكربون النشط: يعتبر الكربون النشط أنجح المواد الممتزة بسبب: قدرتة العالية علي الامتزاز للملوثات مثل الأصباغ ، المعادن الثقيلة ، المستحضرات الدوائية والفينولات. مساحة السطح …

بقلم / أحمد محمد هشام ماجستير كيمياء تحليلية ahmedhasham83@gmail.com مقدمة يعد تلوث المياه أصعب التحديات البيئية التي تواجه المجتمع. لذلك ، يجب اعتبار الملوثات من مياه الصرف الصحي أو مياه الصرف الصناعية تهديدًا للبيئة. ولذلك يعتبر تميّز الجوانب الفيزيائية والكيميائية والبيولوجية للمياه الخام والمياه المعالجة أهمية حاسمة لضمان أنها آمنة …