ANSWER: The short answer; two hydrogen atoms bonded to one oxygen atom form a molecule of water. A drop of water contains billions of molecules of water.Jul 16, 2014
How is water prepared for drinking?
The water-treatment process involves four steps, in this order: coagulation, sedimentation, filtration, and disinfection. The purpose of coagulation is to create dirt clumps that are heavy enough to sink, which is important for the next step in the process.
How is purified water prepared in laboratory?
Distillation. Distilled water is produced by a process of distillation. Distillation involves boiling the water and then condensing the vapor into a clean container, leaving solid contaminants behind. Distillation produces very pure water.
How is distilled water prepared in the laboratory?
Distilled water is water purified by boiling the water and collecting the steam. The steam is recovered by condensing the cleaner water vapor into a fresh container. The distillation process removes most impurities, so it is an effective method of water treatment.Feb 5, 2019
What are the methods of preparing water?
The methods used include physical processes such as filtration, sedimentation, and distillation; biological processes such as slow sand filters or biologically active carbon; chemical processes such as flocculation and chlorination; and the use of electromagnetic radiation such as ultraviolet light.
What is water preparation?
The preparation of water for use as a heat transfer medium may utilize various physical and chemical processes to remove or modify the impurities. The process, or combination of processes needed, will depend upon both the condition of the supply water and the nature of the heat transfer process under consideration.
What are the 4 steps of water treatment PDF?
These include: (1) Collection ; (2) Screening and Straining ; (3) Chemical Addition ; (4) Coagulation and Flocculation ; (5) Sedimentation and Clarification ; (6) Filtration ; (7) Disinfection ; (8) Storage ; (9) and finally Distribution. Let's examine these steps in more detail.