0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why is the building of desalination plants controversial?
The use of desalination plants is controversial. Two major concerns are:they use a lot of energy, which is supplied by coal-fired power plants. Apart from the pollution caused by these plants there are many who feel that they are not sustainable. That is, they cannot continue to operate without putting the environment and our future at risk.the water flowing back to the sea contains much more salt than normal sea water. It is also warmer. This can affect marine animals and plants that live near the desalination plant.
Is desalination important?
Yes. The Earth's water is running out and we need new ways to take water and make it fresh. There are many forms of desalination, but many are very expensive. Less than 1% of the Earth's water is fresh and many people are polluting the very little water we have.
Why would countries use the desalination process?
Desalination is a process that removes mineralsfrom saline water. More generally, desalination may also refer to the removal of salts and minerals,[1]as in soil desalination, which also happens to be a major issue for agricultural production.[2]Salt water is desalinated to produce fresh water suitable for human consumption or irrigation. One potential by-product of desalination is salt. Desalination is used on many seagoing ships and submarines. Most of the modern interest in desalination is focused on developing cost-effective ways of providing fresh water for human use. Along with recycled wastewater, this is one of the few rainfall-independent water sources.[3]Due to relatively high energy consumption, the costs of desalinating sea water are generally higher than the alternatives (fresh water from rivers or groundwater, water recycling and water conservation), but alternatives are not always available and rapid overdraw and depletion of reserves is a critical problem worldwide. Quoting Christopher Gasson of Global Water Intelligence, "At the moment, around 1% of the world's population are dependent on desalinated water to meet their daily needs, but by 2025, the UN expects 14% of the world's population to be encountering water scarcity. Unless people get radically better at water conservation, the desalination industry has a very strong future indeed."[4]Desalination is particularly relevant in dry countries such as Australia, which traditionally have relied on collecting rainfall behind dams to provide their drinking water supplies. According to the International Desalination Association, in June 2011, 15,988 desalination plants operated worldwide, producing 66.5 million cubic meters per day, providing water for 300 million people.[5]This number has been updated to 78.4 million cubic meters by 2013,[4]or 57% greater than just 5 years prior. The single largest desalination project is Ras Al-Khair in Saudi Arabia, which produced 1,025,000 cubic meters per day in 2014,[4]although this plant in Saudi Arabia is expected to be surpassed by a desal plant in California.[6]The largest percent of desalinated water used in any country is in Israel, which produces 40% of its domestic water use from seawater desalination.[7]
Why welding is more popular than riveted joints?
It's often faster and can be stronger too.
Why are npn transistors used more often than pnp transistors?
The primary reason that NPN transistors are used more often than PNP transistors is that they usually operate faster (at higher frequencies) because the mobility of the current carriers in NPN transistors (electrons) is much higher than that of the current carriers in PNP transistors (holes).
Reverse osmosis is more expensive than the evaporation method of desalination TRUE or False?
false
Should you be annoyed at your girlfriend?
Possibly. In my case, I am more often than I care to admit.
How often should you take a strepsil?
Definitely no more than one per hour
Should will com in your hand more hamsters or gerbils?
I think gerbils will more often because they are more curious than hamsters.
What does it mean when you drop your keys more than once?
That you should drop your keys less often...? you should get better hands.
Get all bent out of shape?
Yes, I do. More often than I should. But I've been working on it.
How should topical antibiotics be applied?
Topical antibiotics should be applied within four hours after injury. Do not use more than the recommended amount and do not apply it more often than three times a day.
Do aerosols deplete Our ozone layer?
More often than not: Yes; more often Yes than No.
Why should you have more than one email account?
It isn't necessary and is often confusing to have more than one email account. It may be useful in separating work from personal communications.
How often should you drain air brakes on school bus?
Really depends on where you're at and what season it is. E.g., you'd have to do it more often in a humid state like Mississippi than you would in a more arid state like Arizona. But, if you do it once a week, you should be good.
What should you do after telling your crush you like him?
Try not to hang around him as much and just see if he starts looking at you more than often
What causes a tingling sensation along your gum line?
More often than not it will be caused by gum disease and should be seen by a dentist.
