Water Treatment Water Demand • Various types of water demands for a city – Domestic water demands – Commercial & industrial demand – Fire demand – Demand for public uses – Compensate losses demand Water Demand • Domestic water demand – It depends on the habits‚ social status‚ climatic conditions and customs of the people. – The domestic consumption of water under normal conditions is considered to be about 135 LPCD (IS 1172-1971) – The details of domestic consumption per person
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formula | NH3 | 6 | Nitric acid formula | HNO3 | 7 | Phosphoric acid formula | H3PO4 | 8 | Sodium phosphate formula | Na3PO4 | 9 | Calcium carbonate formula | CaCO3 | 10 | Ammonium sulfate formula | (NH4)2SO4 | 11 | Carbonic acid formula | H2CO3 | 12 | Sodium bicarbonate formula | NaHCO3 | 13 | Sodium hydroxide formula | NaOH | 14 | Calcium hydroxide formula | Ca(OH)2 | 15 | Ethanol formula | C2H5OH | 16 | Hydrobromic acid formula | HBr | 17 | Hydrosulfuric acid formula |
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NAME; BOAKYE SAMUEL ANSAH COURSE; BSC.CHEMISTRY YEAR; ONE INDEX NUMBER; 1026613
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Swimming pool eei Swimming pool eei Viet Vu Yr. 12 Chemistry Viet Vu Yr. 12 Chemistry Table of Contents Aim 2 Hypothesis 2 Background and Theory Review 2 Swimming Pools 2 Equilibrium (dynamic‚ static‚ Le Chatelier’s Principle) 2 pH 4 Chlorine 5 Equilibrium Constant 6 Wavelengths and UV Rays 6 Rationale 7 Materials and Method 8 Results 14
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bleaches‚ sodium hypochlorite (NaOCl) and calcium hypochlorite Ca(ClO)2 are the oxidizing agents. Before titration‚ the mass of the bleach is weighed out for each trial and recorded‚ approximately 0.4-0.6 grams. After the bleach sample is weighed‚ bleach is poured into a beaker with several aliquots of distilled water to completely wash the bleach out. Next‚ 3 M KI is added to the beaker‚ then 3 M H2SO4 is poured into the bleach with 5 drops of
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Cooling Water Problems and Solutions Course No: M05-009 Credit: 5 PDH A. Bhatia Continuing Education and Development‚ Inc. 9 Greyridge Farm Court Stony Point‚ NY 10980 P: (877) 322-5800 F: (877) 322-4774 info@cedengineering.com COOLING WATER PROBLEMS AND SOLUTIONS Water is used in cooling systems as a heat transfer medium and frequently also as the final point to reject heat into the atmosphere by evaporating inside cooling towers. Depending on the quality of available fresh
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STERILIZATION OF WATER USING BLEACHING POWDER A CHEMISTRY INVESTIGATORY PROGECT ANSHUL KUMAR PANDEY XII B [THIS PROJECT LOOKS AT THE TECHNIQUE CALLED STERILIZATION OF WATER USING BLEACHING POWDER WHICH IS USED TO PURIFY WATER AND MAKES IT FIT FOR DRINKING.] Downloaded from www.icbse.com INDEX 1. Certificate of Authenticity 2. Acknowledgement 3. Introduction -Need of Water -Purification of Water -Need for a stable purification technique 4. Theory -History of Water purification -Bleaching
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8% or more acetic acid to descale the appliance‚ as this may cause damage. http://www.diynot.com/forums/viewtopic.php?t=30088#axzz2Bph0xR9a Citric acid will do a better job than the acetic acid in vinegar. That’s because calcium citrate dissolves in water whereas calcium acetate forms an insoluble layer between the scale and the vinegar. You can buy citric acid crystals from home brew shops. A teaspoon of acid in a kettle of water is a good start and you can speed things up enormously by boiling
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The Element: Chlorine General Information We researched the chemical element known as chlorine. Chlorine has an atomic number of 17 and an atomic weight of 35.453. It has a valence number of 3. The element has 3 energy levels. Chlorine exists as a greenish-yellow gas at normal temperatures and pressures. Chlorine is second in reactivity only to fluorine among the halogen elements. Chlorine is a nonmetal. It is estimated that 0.045% of the earth’s crust and 1.9% of sea water are chlorine.
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antacid for hyperchlorhydria • for intestinal toxemia CALCIUM-CONTAINING ANTACIDS • dependent upon their basic properties • raise stomach pH to 7 • constipating • found in combinations with magnesium antacids 1. CALCIUM CARBONATE • precipitated chalk • fast action • found in combinations with Mg antacids • in Lozenges and Oral suspension 2. TRIBASIC CALCIUM PHOSPHATE • Precipitated Calcium Phosphate‚ Tertiary Calcium
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