Posts Tagged ‘environmental issues’

Discover The Making Of Plastic

Monday, March 29th, 2010

What is common between laptop computer bags, hair loss products, skin care treatment bottles? It is Plastic. Plastic comes from petroleum. The petroleum is drilled and taken to the refinery. Here crude oil is refined into natural gas, grease, wax, kerosene, petrol, ethane, butane, propane, naphthalene, tar and many other such products.

Then propylene and ethylene are made by cracking ethane and propane at 3000 degrees centigrade. Propylene and ethylene are mixed with a catalyst to make fluff which is a powder like substance which looks like detergent. Other additives are put into the fluff and blended consistently. The polymer thus formed is then molten by feeding into an extruder.

This molten plastic is cooled and pelletized in a pelletizer. These plastic pellets are then offered to customers who buy it to make various products. These customers then get these pellets molten and moulded into their requirements by processes like blowing, extrusion and injection. As it has invaded all requirements of life that is way it is considered as the greatest innovation of the 20th century.

As plastic is used because it is so flexible, mouldable into any desired shapes like packets and bottles, as it does not rot, rust or break and is light it is reduces transportation cost. Plastic is used because it is it is believed that it saves an ecosystem from destruction, sand comes from the intertidal zones of the beaches which are rich in its flora and fauna.

Efforts are being made to even make televisions of plastic which would fold up like a screen from plastic. In spite of all the benefits of plastic why is its use opposed?This is because it is one major toxic pollutant besides sewage and industrial wastes. It is non-biodegradable and toxic; it remains in the environment for more than 700 years.

There is no way to dispose plastic waste in a safe manner and it also causes damage to the environment at its production and disposal. Therefore the only way to deal with plastic is to reduce its production and wean ourselves of our dependence in it.

Unless a plastic-eating bacteria is made like we have oil-slick eating bacteria. Since the onset of the manufacturing process, carcinogens like Vinyl chloride and benzene besides other chemicals are used like certain gases and hydrocarbons, which violate the atmosphere and the earth. Not only this, they slowly degrade even when food and drinks are contained in them and pollute and sicken our bodies. Reasons enough to avoid them.

Discover The Making Of Plastic

Monday, March 22nd, 2010

What is a common feature between laptop computer bags, hair loss products, skin care treatment? The common feature is plastic. Plastic is extracted out of petroleum. Petroleum is extracted from the earth and taken to a refinery. The crude oil is refined into gasoline, LPG, ethane, butane, propane, naphthalene, tar, grease and other products.

The propane and ethane are cracked into propylene and ethylene at about 3000 degrees centigrade. A catalyst is combined in propylene and ethylene making what is known as fluff which is a powdery material which looks like washing detergent. The fluff is put into a blender other additives are added to it continuously. Now becomes a polymer where it is fed into an extruder and melted.

This melted plastic is cooled while making pellets in a pelletizer. These pellets are the plastic, which is shipped to the customers. The customers then mould the plastic through various processes of moulding by injection, blowing and extrusion. Plastic is considered as the greatest innovation of the 20th century and is used in all aspects of life.

Some desirable properties is its lightweight, does not rot rust, as it is light more bottles or packets can be transported thereby reducing transportation cost. It is believe the save natural resources, because sand to make glass is not removed off the beaches which is a home to many intertidal species endemic to the seashores only. Trees to make paper and cartons are saved, too.

Even though there are so many benefits, why is the use of plastics banned in certain places? This is because after industrial and domestic sewage plastic is the third most dangerous pollutant. It is non-biodegradable, remains in the ecosystem for 700 years, and is highly toxic.

After domestic sewage and industrial waste, plastic is the most toxic anthropogenic pollutant. It remains in the environment for more than 700 years as there are decomposers to degrade it and is highly toxic.

Or we should invent bacteria similar to the oil-slick ingesting bacteria. From the very onset of its production carcinogens like benzene and vinyl chloride, other gases and chemical compounds are released into the atmosphere. The chemicals in the plastics slowly leach into our foods and drinks stored in the plastic bottles and containers due to degradation and make us sick. Aren. ‘t these reasons enough to avoid plastic?

How Can You Use Technology To Be Friendlier To The Environment?

Saturday, February 27th, 2010

When you consider the latest high technology gadgets what goes through your head? It will differ from one individual to another. Some might think that they’re cool. Others might think that they’re expensive. Some almost certainly feel that they’re confusing and can be difficult to operate. It very much depends on your own individual viewpoint. However, it’s probably a fair bet to say that you almost certainly don’t associate the latest geeky electronic gizmo with doing your bit for the environment – even so, electronic devices can, used properly, be environmentally friendly.

Digital photo frames for example have become very popular over the last two or three years. As a result of fierce competition, prices have reduced considerably and you can now pick up perfectly serviceable digital frames for more or less the same price that you might expect to pay for a traditional photo frame. Digital frames have a number of perceived advantages, one of which is their ability to display hundreds of different photographs using a single frame.

Much will depend upon just how many photographs you usually print out in a typical year, but if you are in the habit of taking a lot of snaps, then the use of a digital frame to display your photo collection could have a positive environmental impact. Whether you avoid having photos printed out at a processing lab or if you just print out less on your computer printer you will wind up using fewer materials.

Another good, and very topical, example is the current trendy gadget – the e-book reader. E-book readers have actually been available for quite some time, but they really caught the public’s imagination in 2009 and now seem poised to increase sales even further in 2010. The Kindle reader is currently the most popular by a long way and Sony have also established a good market presence.

Every year, the American book, magazine and newspaper industry consumes 125 million trees to provide the paper required. Huge amounts of water, energy and a whole host of chemicals are also consumed to feed the nation’s reading habit. What’s more, books being a physical product require to be delivered from the publisher’s warehouse to the book store – typically using road transportation. The gas used by customers who drive to and from the retail outlet is also a factor in determining the carbon footprint of a typical book.

Of course, e-books do not consume large quantities of paper, ink etc. in their production. Also, as they are not a physical product, they can be delivered over the internet rather than using the road transport network.

Of course, as both e-book readers and digital photo frames are themselves physical products, they do require both materials and energy for their production. They also require delivery to the point of sale or direct to the final customer. Even so, according to studies have shown that, even when the materials consumed are offset against the savings in paper, energy, ink etc. that such devices can be better for the environment (though it will depend, to a certain extent, on how many books you read or how many photos you process each year).