Seawater

The author asserts that desalination of seawater is a promising way of reducing freshwater shortages, but it is expensive, complex, and can have environmental consequences. The author claims that groundwater is sensitive to external forces such as tides, hurricanes, and climate change. According…

RECENT TRENDS ON PURIFICATION OF SEA WATER INTRODUCTION SEAWATER: -Sea water or salt water is water from sea or ocean. Sea or ocean water accounts for the most percentage of water on the earth. Almost anything can be found in sea water. This includes dissolved salts from earth’s crust and material released by micro organisms. It is the most impure form of natural water. Rivers join sea and throw in the impurities carried by them. Moreover continuous evaporation of water from the surface of sea…

COMMODITY: WATER Water is the main source required to manage all life on our planet, making it the most vital item on Earth. Looking ahead into the following quarter century, Water is becoming scarcer and essential than it was in recent days. Clean, safe drinking water is rare. Today, approximately 1 billion people in the developing countries don't have access to it. Water is the basis of living. And still today, in every part of the world, they are many people spend their whole day…

During the 1870s scientists collected seawater samples from the seas of the world from varying depths to see if the oceans were in fact similar in some way or another. When these samples were analyzed they were actually found to be quite similar, almost identical. This finding sparked great…

acidifying of our oceans is because of all the Carbon Dioxide that is absorbed by seawater. A chemical reaction that occur which reduces seawater's pH. All of the Carbon Dioxide is being put into our atmosphere by the burning of fossil fuels. Calcium carbonate minerals are the building blocks for the skeletons of shells of many marine organisms. In certain areas where life now congregates in the ocean, the seawater, is supersaturated with calcium carbonate mineral. The guiding question is what…

4 to 5⁰C in a temperature controlled chamber. Each tank will be filled with 16 L of sterilized seawater and are continuously bubble with Hg free air as described in the Artemia protocol. Before hatching, the Artemia’s cysts will be sterilized by immersing 200 ppm sodium hypochlorite for 20 minutes. The sterilized cysts will be poured into a fine steel mesh coffee filter and rinsed 3 times with seawater. Then cyst will be transferred to the prepared Artemia tank whereupon they will be hatched…

Doesn’t sound that bad does it? However, when some of these compounded gases react with water, the water is now acidic. The gas that is produced when burning these fuels is carbon dioxide (CO2). Ocean acidification is when carbon dioxide dissolves in seawater and forms carbonic acid which lowers the pH in the ocean. A shocking but true statistic is that about 25% percent of the carbon dioxide that humans generate end up being absorbed into the waters. This is very frightening to scientists…

bleach. Body 1. Why coral reef bleaches and decrease What is a white part of corals? It is a bone. When algae which corals have are lost we can see bones through corals’ transparent tissue. Stresses cause coral bleaching ―high or low temperature of seawater, strong light, ultraviolet rays, low density of salt, and so on. They prevent algae from photosynthesizing and a surplus of sunlight energy injures algae more. The effect is dying of algae, and corals die too because they get nutrients from…

diesel generators located in the basements of the turbine buildings started up” (WNA). Then, approximately 41 minutes later, the tsunami hit. The first wave and second wave were separated by an eight minute interval. The second wave had submerged the seawater pumps. Along with this, the diesel generators had been damaged, as well as everything else in the basements of the turbine buildings. The tsunami had also taken out roads, as well as decimating buildings, which made outside access quite…

1. Executive Summary This project describes an orbital space settlement called the ‘Interstellar Terrarium’(IST). It can house upto 50,000 people along with all the necessities. It takes the shape of a cylinder, to which support is given by a framework of strong carbon nanotubes that can bear the pressure of the walls, the atmosphere inside and the foundations for buildings, and thus prevent the walls from getting bowed outwards. The entire cylinder is divided into three concentric cylinders –…