PURE AND IMPURE WATER B.12. Do you drink chemically pure H 2 O? What is the difference between chemically pure versus “clean” H 2 O?

Slides:

Advertisements

Similar presentations

Bellringer What might be some possible downsides to using icebergs tugged from the poles as a source of freshwater?

Advertisements

Physical Science Chapter 2

Mixtures and Pure Substances

HEAVY METAL IONS. SOME METAL IONS ARE GOOD! Fe 2+, K +, Ca 2+, Mg 2+ Essential to the health of humans. May be in water but mostly get in food we eat.

Grade 7 Science: Pure Substances and Mixtures By: Michelle and Rawan

Health of water determined by the balance between physical, chemical and biological variables. Physical variables=temperature, turbidity, and water movement.

DETERIORATION OF DRINKING WATER QUALITY & NEED FOR BETTER QUALITY POU WATER PURIFIERS.

Chapter 21 Water Pollution

Section 1.1 p  Everything contains chemicals: environment and living things  Oxygen: animals need oxygen in order to survive. Plants make oxygen.

WATER POLLUTION

Lesson 3.   The addition of any substance that has a negative.

Water and Solubility Write a definition for these words: Solute: Solvent: Solution: Atmospheric water vapour Run-off Transpiration Atmospheric water vapour.

Lesson 2. Water Quality Certain substances, such as ion, can affect the taste or color of water but are harmless unless present at very high levels. Other.

بسم الله الرحمن الرحيم. Environment Water Environment It implies all the external factors either living and non living material that surround the man.

Water to drink COULTER. Water quality  Water quality- is a measurement of the substances in water besides water molecules.  Certain substances, such.

Treating Drinking Water Treatment Plant Water Distribution.

Water to Drink Where does our drinking water come from?

Oil Cleaning Technical Intellectual Communications OCTIC.

Water Treatment Sources of water

Job Hazards: A job hazard is anything at work that can hurt you either physically or mentally. Safety hazards: Can cause immediate accidents and injuries.

1 Major Issues in Community Health: Environmental Health John Krezoski, Ph.D. University of Wisconsin - Milwaukee Dept. of Environ. Health, Safety and.

Introduction to Water Chemistry. Why Water? Water dissolves more substances than any other liquid, so it carries chemicals, minerals and nutrients as.

Water Conditioning Process

 DO level: 9.8 ppm  Hardness: 110ppm CaCo 3 (this is high due to limestone aquifers, not a bad thing)  Alkalinity: ppm (also high due to limestone.

Identifying Water Sources and Quality Standards. Next Generation Science / Common Core Standards Addressed! WHST.9 ‐ 12.7 Conduct short as well as more.

WATER TO DRINK. A. Water Quality 1.Water Quality-measurement of substances in water 2.Concentration-amount of a substance in water measured in parts per.

The Drinking Water Treatment Process

What factors affect water quality? Most people in the US get their water from a reservoir or an aquifer.

Generally speaking, water is a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the.

What are the sources of water pollution? Water pollution can come from many sources.

Chapter Images shutterstock.com 7 Water: The Universal Solvent.

1 Bottled Water & Safety National Beverage Company Ahmad Saify.

Classification of Matter. Matter Matter: Anything that has mass and volume 3 phases of matter.

Water Underground and Using Freshwater Resources JANUARY 22ND, 2015 PGS

The Safe Drinking Water Act Of 1974, 1984, & 1996 Elle Gerleman.

Testing for Water Quality

Water Quality Section 1.2

Water Pollution 7SCIENCE. What are some types of water pollution? Bacteria and viruses Untreated sewage and garbage Radioactive waste Chemicals like pesticides,

Chapter 21 Water Pollution. Types of Water Pollution  Water pollution  Any physical or chemical change in water that adversely affects the health of.

Against and For. Tap water vs. Bottled water. Against tap water.  Might have chlorine in it.  Tap water can come from undergrounds, lakes and streams.

OCEAN WATER 1. ________ AND _______ ARE THE MAIN GASES THAT ARE DISSOLVED IN OCEAN WATER. 1. ________ AND _______ ARE THE MAIN GASES THAT ARE DISSOLVED.

Water to drink Coulter. Water quality 0 Water quality- is a measurement of the substances in water besides water molecules. 0 Certain substances, such.

P S NAGALAKSHMI A RIVER’S TALE. RIVERS ORIGINATE FROM THE MOUNTAINS.

Water Quality Is it safe and healthy?. ● Certain substances can affect the taste or color of water, but are harmless unless present at very high levels.

How do you use water? Agenda for Wednesday Sept. 7 th 1.Collect syllabus/safety sheets 2.Set-up notebooks 3.Water intro 4.Water cycle 5.Video Lab Tomorrow.

The basic information on EM TechnologyTM

ENVIRONMENTAL SCIENCE 5.3 Before You Drink the Water.

Water & it’s Industrial Applications Dr. Shuchita Agrawal BTIRT Sironja, Saga r 1.

Topic #6 Water Quality. Water Quality  There are 2 major sources of drinking water 1) Groundwater – found below ground 2) Surface water – lakes, ponds,

Water Pollution.

Chapter 7 Section 2 Water Quality LT: I will describe the methods humans use to monitor water quality.

Lecture (6): Water pollution

RO - HOW IMPORTANT IS THE REMINERALIZATION FILTER?

CHAP. 2.2 – WATER TO DRINK.

Chapter One: Harmful and useful chemicals in the environment

How do we clean up this mess?

Unit 5 – Fresh and Salt Water Systems

Water pollution water pollution

THE BEST METHOD FOR WATER FILTRATION – REVERSE OSMOSIS.

PROPERTIES AND CHANGES OF MATTER

The Elements On Our Earth.

Physical Properties of Solutions

Pollution and Human Impact

Micronutrients Food for Today 2-4.

CHARACTERISTICS OF WATER

Environmental Engineering

Pesticides The use of pesticides for agricultural and non-agricultural purposes is widespread and there are approximately 450 different active ingredients.

Physical Variables of Water Health

Environmental Chemistry

Presentation transcript:

PURE AND IMPURE WATER B.12

Do you drink chemically pure H 2 O? What is the difference between chemically pure versus “clean” H 2 O?

Clean H 2 O H 2 O that is free from microorganisms that cause disease Atmospheric gases like N 2 O 2 CO 2 always dissolve in H 2 O to some extent

CLEAN H 2 O Some dissolved gases and minerals give H 2 O a pleasing taste

HARMFUL SUBSTANCES Fe gives H 2 O a bad taste and causes unwanted deposits in pipes and fixtures S gives H 2 O a bad odor

HARMFUL SUBSTANCES Hg, Cd, Pb, and As, can dissolve in H 2 O and are harmful to human health Pesticides and chemical waste also enter drinking H 2 O

CHEMICALLY PURE H 2 O Only H 2 O… without anything else does not exist.