EAT 207 WATER SUPPLY ENGINEERING Advanced Water Treatment
- Slides: 27
EAT 207 WATER SUPPLY ENGINEERING Advanced Water Treatment Fahmi Muhammad Ridwan SCHOOL OF ENVIRONMENTAL ENGINEERING UNIVERSITI MALAYSIA PERLIS 2012
Content q Introduction to advanced water treatment q Water Softening - Lime-Soda Ash precipitation - Ion Exchanger q Adsorption q Desalination Special Topic: Reverse Osmosis q. Iron and Manganese Removal q Flouridation and Deflouridation
Introduction to Advanced Water Treatment Advanced water treatment process is proposed: v. To treat water that has undergone treatment by conventional process, so that higher water quality will be obtained v. For industrial purposes, such as steam production and the manufacturing of food, paper, textiles, etc. v. To reduce chemical content in water such as removal of iron and manganese, hardness causing ions, organic & inorganic compounds and minerals.
Water Softening v Softening is the process of removing hardness ions v In general, water is softened using: chemical precipitation and ion exchange v Water hardness is due to the presence of multivalent cations, mostly calcium and magnesium v In natural waters, other ions that may be present to cause hardness but not in significant amounts are iron (Fe 2+), manganese (Mn 2+), strontium (Sr 2+) and aluminum (Al 3+) v When these cations are associated with the carbonate and bicarbonate ions in water (e. g. Ca(HCO 3)2) the type of hardness is called carbonate hardness; otherwise is called non-carbonate hardness (e. g. Mg. Cl 2)
Hardness cations & associated anions
Hardness Classification
Softening by Chemical Precipitation
Softening by Chemical Precipitation
Softening by Chemical Precipitation
Softening by Chemical Precipitation
Softening by Chemical Precipitation
Softening by Chemical Precipitation
Example 1
Water Softening Process
Lime-Soda Ash Softening Components
Typical Single-stage Softening with Recarbonation
Typical Single-stage Softening with Recarbonation
Two stage Softening with Recarbonation
Two stage Softening with Recarbonation
Water Softening Outcomes
Water Softening Outcomes
Ion Exchange
Ion Exchange
Softening by Ion Exchanger
Ion Exchange Regeneration
- I would rather eat potatoes than eat rice
- I eat, you eat, he eats.
- People buy me to eat
- Iso/tc 207
- 207 tfeu
- Eeee 207
- Msz 207
- How to write an integer for each situation
- As a result of 207 years of pax romana, the roman empire
- Pg 207
- Oae 207
- 2conf
- Csc 207
- Oecd 207
- Ae 207
- Acc 207
- Water and water and water water
- Advanced supply chain planning
- Cs 527 uiuc
- Advanced machine engineering
- Advanced industrial engineering
- Advanced engineering electromagnetics
- Advanced engineering mathematics
- Advanced engineering mathematics
- Engineering mathematics
- Advanced engineering mathematics
- Advanced engineering mathematics dennis g zill 4th edition
- Eat water