نتایج جستجو برای: metal coagulants
تعداد نتایج: 199168 فیلتر نتایج به سال:
Natural organic matter (NOM) seriously challenges the drinking water supply. It typically exists as complex substances generated in natural ecosystem part of hydrologic, biological, and geological cycles. The significant variation, composition, abundance NOM or wastewater necessitate implementation robust adaptive technologies, particularly addressing even more stringent standards supply treate...
The treatment of effluents requires new methodologies for the tailings. One option is use natural coagulants. Chitosan has amino groups in polymeric chains that allow it to act as a cationic polyelectrolyte and present high density charges, which are easily adsorbed on negatively charged surfaces, case most colloidal impurities water. Thus, this work used chitosan coagulation/flocculation proce...
Egg whites can undergo gelation at extreme pH. In this paper, the effects of NaOH concentration (1.5, 2, 2.5, and 3%), temperature (10, 20, 30, and 40°C), and additives (metallic compounds, carbohydrates, stabilizers, and coagulants) on the strength of alkaline-induced egg white gel were investigated. Results showed that NaOH concentration and induced temperature significantly affected the rate...
The subject of research was groundwater from Quaternary formations with high concentration of total iron, increased colour and turbidity, and an increased amount of organic substances and manganese. Successful purification of such water creates technological problems and is practically impossible to achieve by applying traditional groundwater treatment processes. One of the ways recommended for...
The effects of preparation parameters on the performance and morphology of polydimethylsiloxane/ polysulfone (PDMS/PSf) membranes were investigated. The PDMS layer is mainly used for sealing the defects of the PSf selective layer. The membrane morphologies were characterized by using scanning electron microscopy (SEM). The CO2/CH4 separation performance of membranes was studied by a pure gas pe...
Trace organic contaminants have become an increasing cause of concern for governments and water authorities as they attempt to respond to the potential challenges posed by climate change by implementing sustainable water cycle management practices. The augmentation of potable water supplies through indirect potable water reuse is one such method currently being employed. Given the uncertainty s...
Pollutants in dye wastewater significantly vary due to the large number of dyes and other chemical compounds used in dyeing processes. The major compounds in dye wastewater are desizing and scouring agents, bleaches, reducing agents, detergents and wetting agents, finishing agents, organic acids and dyes, and fluorescent brighteners1). Physical, chemical and biological methods have been applied...
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