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Lenntech water questions overview

Over one hundred questions on water answered by Lenntech!



Drinking water questions

- What is in our drinking water?
- Where does drinking water come from?
- How is drinking water purified?
- What dangers can there be in drinking water?
- How is drinking water quality protected?
- Is bottled water safer than tap water?

Water chemistry questions

- What is water?
- How is a water molecule built up?
- How are water molecules bond together?
- How much does a water molecule weigh?
- In what states (phases) can water be found?
- What happens if water changes phase?
- How does water evaporate?
- Why does ice float on water?
- How come not all substances are water-soluble?
- How do we determine the solubility of gasses in water?
- How do we determine the solubility of liquids in water?
- What are thermal properties of water?
- What is hard water?
- What are physical and chemical properties of water?
- What is oxidation and reduction?

Water cycle questions

- Where can water be found?
- How does the water cycle work?
- How does water spread through the ground?

Water energy questions

- What is energy?
- Does water contain energy?
- Can energy be generated through water?
- What is hydroelectric power?
- What are the benefits and drawbacks of hydroelectric power?
- How is energy generated in a hydroelectric power plant?
- How much of the world's electricity is supplied by hydroelectric power?
- Can we produce electricity from tides and waves?
- Is production of electricity from heat stored in water possible?

Water & health questions

- How much water do we need on a daily basis?
- Why should we drink so much water?
- What causes humans to become thirsty?
- Why should we not drink seawater?
- What health effects do microrganisms in water cause?
- What is Cryptosporidium?
- Are there any risks to hard water?

Water ecology questions

- What is ecology?
- What kind of aquatic environments are there?
- What kind of saltwater life zones are there?
- What kind of freshwater life zones are there?
- Which species live in the aquatic life zones and how do they interact?
- Which are the limiting factors for aquatic life?
- What impact do humans have on aquatic life zones?

Water pollution questions

- What is water pollution?
- What are the major water pollutants?
- What types of freshwater pollutants are there?
- What are the properties and dangers of water pollutants?
- Where does water pollution come from?
- What are the specific ways through which water pollutants enter the environment?
- How are pollutants transported through water?
- Which factors determine the movement and distribution of pollutants in water?
- How do we detect water pollution?
- What is heat pollution, what causes it and what are the dangers?
- What is eutrophication, what causes it and what are the dangers?
- What is acid rain and how does it develop?
- Why does water sometimes smell like rotten eggs?
- What causes white deposit on showers and bathroom walls?
- How do organisms respond to water pollutants?
- What general effects can water pollutants have on organisms?
- How is toxicity of water pollutants tested with aquatic animals?

Water purification questions

- What is water purification?
- In which ways is polluted water treated?
- What specific water purification methods are there?
- How do specific water purification methods work?
- How can bacteria be removed from water?
- What is aerobic water treatment?
- What is anaerobic water treatment?
- How are fertilizers removed from water?

Water quality questions

- Which factors determine water quality?
- What is the difference between salt water and freshwater?
- How is water quality assessed?
- Which qualitative analyses define water quality?
- Which quantitative analyses define water quality?
- What are water quality certificates?

Water quantity questions

- How much water is there on earth and how much is available for humans?
- How much of the water can be found in oceans?
- How much freshwater is available?
- How much water is suitable for drinking water?
- What is the total world annual consumption of potable water and seawater?
- What are the projected needs for water in the next 10 to 50 years?
- How much of the human body consists of water?
- How many people do not have access to clean water?
- What causes freshwater shortages?
- How can water supplies be increased?
- What are the causes and effects of flooding?
- How will population increases influence water use?
- What is the average cost of water per cubic meter in different countries?
- How much does a cubic meter of desalinated water cost in various countries?
- What will happen to the cost of desalinated water in the next 10 to 50 years?

Water softener questions

1. Hard water questions

- What is hard water?
- Which industries attach value to hardness of water?

2. Water softening questions

- What is water softening?
- What is a water softener?
- Why is water softening applied?
- What does a water softener do?
- How long does a water softener last?

3. Softening salts questions

- Which types of salt are sold for application in a water softener?
- Should we use rock salt, evaporated salt or solar salt in a water softener?
- Is it harmful to mix different kinds of salt in a water softener?
- How often should one add salt to a softener?
- How come water sometimes does not become softer when salt is added?

4. Softening costs questions

- How much does a water softener cost?
- How much does a water softener cost during operation?

5. Softening of drinking water questions

- Do water-producing companies always produce softened water?
- Is softened water safe to drink?
- Can salt from softening installations enter drinking water?
- How much sodium does one absorb from softened water?
- Will softening drinking water deprive it of essential minerals?

6. Softener maintenance questions

- When does a softener resin need replacement?
- Does a softener brine tank need cleaning?
- What is 'mushing' and why should we avoid it?

7. Softener operational questions

- Can brine from softeners damage a septic tank?
- Can a water softener be used with lead pipes?

8. Softener in households questions

- Can a water softener be taken along during moving?
- Can waste from a water softener be discharged directly in the garden?
- Is softened water any help for dry skin conditions?

Water usage questions

- What do we use water for?
- How much water does a person use each day?
- How long can water be stored?
- How should water be stored?
- Why does tap water often smell like chlorine?

For water terminology please move to our water glossary

For freshwater pollution and the responses of their environment, start introduction to freshwater pollution

We can also provide you with information on water treatment and reviews for books on water

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