Water Technology Hardness of Water: Natural waters containing large quantities of dissolved salts of Calcium (Ca) & Magnesium (Mg) is called hard water. It is a characteristic of preventing lather formation of water with soap. Ca2+ & Mg2+ ions react with soaps which are salts of fatty acids (stearic or palmitic acid) to give insoluble scums or precipitates of calcium or magnesium stearate or palmitate. 2C17H35COO- + Ca2+ → (C17H35COO)2 Ca (scum) 2C17H35COO- + Mg2+ → (C17H35COO)2
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et al.1992. Persistent diarrhea associated with AIDS. Acta Paediatrics‚ 381:45-48 21 Fayer‚ R. and B. L. P. Ungar. 1986. Cryptosporidium spp. and cryptosporidiosis. Microbiol Res.50:458-483 22 Lule‚ J.R. et al. 2005. Effect of home-based water chlorination and safe storage on diarrhea among persons with human immunodeficiency virus in Uganda. Am J Trop Med Hyg. 73(5):926-33 28 www.lifestraw.com Customer Support Offices Head Office Vestergaard Frandsen Group S.A. Chemin de Messidor 5 - 7 CH 1006‚
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(Author’s name) (Professor’s name) (Course details) (Date Abstract The aim of the lab was to separate and analyse analgesic drugs in a drug tablet. The method used to separate the components was Thin Layer Chromatography (TLC) with silica adsorbent as the stationary phase and 0.5% glacial acetic as the mobile phase. In one plate‚ five known samples were used as the reference‚ that is: Aspirin; Caffeine; Ibuprofen; and Salicylamide. Aspirin and Salicylamide were the only samples that fluoresced
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Olah‚ the Hungarian-born U.S. chemist whose research is focused on hydrocarbons‚ strongly advocates the introduction of methanol as a chemical energy carrier. The basic idea is that‚ to be sure‚ we need to find a replacement for the short chain alkanes that constitute the major part of gasoline‚ aviation spirit‚ etc.‚ and which are used as the source of motive power for vehicles. Currently‚ attention seems to be focused on two rival alternatives. The first is ethanol‚ produced by time-honoured
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Soft Drink Ads by Google Buy Manufacturing Machine - Wholesale Suppliers & Factory Price Contact Directly & Get Live Quotes! - www.Alibaba.com Soda Bottling Machine - Soda Making and Packing machine Fill Pet Bottles. Call 09818663588 - www.sodasolution.in Soft Drink Market Data - Industry Leading Analysis Reports‚ Databases and Consulting - www.zenithinternational.com Cheap Flight Tickets - Book Flights & Get Rs.750 Off on Hotel Booking. Pay in EMI. Hurry! - www.Cleartrip.com
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1. INTRODUCTION 1.1 GENERAL Water recycling or the reuse of treated wastewater is becoming a necessity in today’s world. Under constant threat due to climate change‚ explosive population growth‚ and wastage‚ there is tremendous pressure on water‚ a basic and valuable resource. While industrial growth and unplanned water utilization for agricultural use have depleted ground water levels in many parts of India‚ the growth of urban clusters have brought pressure on available water. Increasing
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Australian College of Business and Technology CHE001- CHEMISTRY UNIT OUTLINE – Trimester 1‚ 2013 Module Name: | Chemistry | Module Code: | CHE001 | Nominal Duration: | 52 Hours (4 hours/week | Discipline: | Stream Module * Engineering * Science (Health Sciences) * Science (Physical Sciences) | Module Purpose: | This module introduces the study of matter and its interactions thereby providing a link with other branches of natural science. It’s designed to assist students
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Chapter 1 MULTIPLE CHOICE QUESTIONS Topic: Atomic Orbitals 1. A) B) C) D) E) In quantum mechanics a node (nodal surface or plane) is: a place where Ψ is negative. a place where Ψ is positive. a place where Ψ = 0. a place where Ψ2 is large. a place where Ψ2 is negative. Ans: C Topic: Atomic Orbitals‚ Molecular Orbitals 2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule‚ how many molecular orbitals are formed? A) 1 B) 2 C) 3 D) 4 E) 5 Ans:
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Due to the necessity of keeping the food’s natural characteristics and appearance for longer‚ to meet the requirements of consumers‚ and because of the short life that natural food have‚ certain chemical compound have discovered and developed certain ways to preserve food and extend their life for longer. Furthermore‚ there are many different types of chemical compounds were added to our daily diet‚ yet certain chemical compounds can be listed on the nutrition label‚ and even they cannot be tested
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Name: Mr Dev Abrasion Peeling Description of process: In abrasion peeling‚ the material to be peeled is fed onto carborundum rollers or fed into a rotating bowl‚ which is then lined with carborundum. The abrasive carborundum surface removes the skin‚ which is then washed away with a copious supply of water. The process is normally carried out at ambient temperature. Advantages: This process results in reduced energy consumption‚ while the peel can be recovered and used as animal feed
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