Posts Tagged ‘household’

Every year, millions of people across the country take a day during the Spring season to clean up and get rid of all of the garbage and clutter that has accumulated in their homes over the previous year. This can include old paint cans, electronics, recreational equipment, old furniture, clothing,etc. When the bags of garbage are piled by the curbside, many do not usually consider where all of the waste goes.

Before awareness about the threats to our environment became widely known, household waste used to go entirely into landfills. Fortunately, many local and regional governments have now changed how we dispose of household waste. Most regions, towns, and cities, have implemented waste processing methods that reduce the amount of garbage going into landfills.

In many places, trash will be sorted at a Materials Recovery Facility. (MRF) It can be sorted using a conveyor belt or by hand. Reusable and recyclable materials are sorted from regular garbage. If you do not live in a community that has a materials recovery centre, a compost and recycling program is very important. MRFs sort out the reusable and recyclable materials that accidentally get put into the trash. The remaining trash is transported to a landfill. The trash is poured into the landfill and covered by a layer of soil. Each days layer of trash is stacked on top of one another and the process is repeated until the landfill is full. Once full, more land has to be cleared and the whole process begins again.

When it comes to a local residential Spring cleaning day, there is so much garbage that is accumulated from all of the homes, that often many items that should be separated will accidentally get put in the landfills. It may seem if newspapers and other items that degrade, it would not matter if they went in a landfill. However, studies have found that this type of trash is slow to degrade in a landfill. Dr. William Rathje, a professor at the University of Arizona, formed a group called the Garbage Project to learn more about what is in America’s landfills. In 1989, his team dug up a newspaper from 1952 that could still be read. They also found an ear of corn with its husks intact mixed in with material dated from 1971.

When it comes to Spring cleaning, we must do our part to make sure unnecessary waste does not end up in the landfills. Remember, the threat of contaminating our water and air does not end once garbage removal is put in landfills. It takes a longtime for many items to decompose. Also, the soil has to be monitored for toxic contamination that could end up in our own water supply. The less waste that is created means the less waste that ends up in our landfills. When gathering all of the junk that you have accumulated, separate the items under the categories compost, reuse, recycle. Any household newspapers and organic waste should go in a composter. Items with toxic chemicals such as car fluids and cleaners should be separated and given to a hazardous waste disposal facility. Electronics and other items that contain toxic metals should also go to a recycle facility where they can be stripped down and disposed of properly and safely. Large items such as tires appliances, and furniture should be separated from landfill items so they can be safely disposed. You can donate items to charities such as clothing, old furniture, electronics that still work,etc. You will find that once you have separated and categorized your items, you will have very little left that will go in a landfill. If you have a great deal of waste, there are special waste hauling companies that will come to your home and remove all of your garbage. They are trained and certified to dispose of waste, hazardous materials, compost, and recyclable goods.

Because of the depletion of our natural resources and hazards to our environment, it is important that individuals and governments dispose of waste that is eco-friendly. Green Spring Cleaning is a great way to conserve and protect the environment.

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Light Bulbs

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Light bulbs have a very simple structure. At the base, they have two metal contacts, which connect to the ends of an electrical circuit. The metal contacts are attached to two stiff wires, which are attached to a thin metal filament. The filament sits in the middle of the bulb, held up by a glass mount. The wires and the filament are housed in a glass bulb, which is filled with an inert gas, such as argon.

When the bulb is hooked up to a power supply, an electric current flows from one contact to the other, through the wires and the filament. Electric current in a solid conductor is the mass movement of free electrons (electrons that are not tightly bound to an atom) from a negatively charged area to a positively charged area.

Electrons constantly collide with the atoms in the filament as the zip through it. The energy produced by each collision vibrates the atoms, which heats them up. A thinner electrical conductor heats up easier and quicker than a thicker one, this is because it has a far greater resistance to electron movement.

Bound electrons inside the vibrating atoms can be temporarily enhanced to a higher energy level and when they receed back to their normal energy level, they release extra energy in the form of photons. Atoms of metal mostly release infrared light, which human eyes cannot see. However if they are heated enough (in the case of a light bulb around 2,200 degrees C / 4,000 degrees F) they will emit lots of clearly visible light.

Within the light bulb itself, the filament is a long, very thin wire of tungsten metal. This is used is very nearly all incandescent light bulbs, and this is because tungsten is simply ideal to use for the filament material. Most other metals would melt under such high temperatures, the structural bonds between the atoms would be broken apart by the vibrations caused by the heat, hence the material becomes liquid. Tungsten is the favoured metal to use in light bulbs because of its high melting temperature. However with that said, tungsten will set on fire when it reaches such extreme temperatures, in the right conditions. Combustion is the end result of two particular chemicals reacting with each other, which occurs when one of said chemicals reaches it’s ignition heat. On earth at least, combustion is almost always a reaction between the atmosphere’s oxygen, and a given heated material, but there are other chemical combinations that will ignite as well. The lightbulb’s filament is encased in a sealed chamber free of oxygen, therefore avoiding combustion. In the early days of light bulbs, a near vacuum was created inside the bulb by sucking out all (or nearly all) of the air, as a result of this, there was barley any oxygen in the bulb, preventing combustion.

The main flaw with this method was that the tungsten atoms were evaporating. At the high temperatures required, occasionally a tungsten atom vibrates heavily enough to seperate itself from the surrounding atoms and launches itself into the air. In the old style vacuum bulbs, the free atoms of tungsten shoot out in straight line and build up on the inside of the glass bulb. As this happens over and over again, the filament is losing atoms and therefore starts to disintegrate, and the glass gets darker and darker as it fills up with atoms. This has a massive effect on the lifespan of a light bulb.

However, in modern day light bulbs, inert gases are used inside them to reduce the loss of tungsten, usually argon. So when an atom of tungsten seperates itself from the filament (evaporates), it is highly likely that it will bounce off an atom of argon and be pushed back towards the filament to rejoin the tungsten structure. Because inert gases are normally unreactive with all other elements, it will not create a combustion reaction within the light bulb.

Incandescent light bulbs give off most of their energy in the form of heat-carrying infrared light photons — only about 10 percent of the light produced is in the visible spectrum. This wastes a lot of electricity. Cool light sources, such as fluorescent lamps and LEDs, don’t waste a lot of energy generating heat — they give off mostly visible light. For this reason, they are slowly edging out the old reliable light bulb.

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White snow is a beautiful thing, and it has already become part of our culture for the kids to enjoy the first day of snow. Nothing is wrong with this, and I believe that snow can truly be the herald for a momentous season. There is one big problem though, and that is the fact that snow doesn’t stay impressive. As the weeks pass, the snow will catch the dirt and the soil outside, and it will start to turn into this muddy mulch that could litter your household.

It stands to reason that we must clear all the snow away because of this. This is traditionally done by scooping them off via a shovel that is specifically designed for this purpose. It is a boring but necessary chore for people who live in areas that experience the cold season. They will just have to learn to deal with it.

Unfortunately, these same people ae obvlivious to the dangers that one may encounter when shoveling snow off. If you think the only danger from this task is to slip on the icy surfaces, then you have another thing coming. You must always be cautious and prepare when you engage in this task.

It cannot be denied that snow shoveling is a tiring task, even though it is a mundane one. Let’s face it: in today’s times, a lot of people are not used to physical labor anymore. If you’re going to be out there, take a few simple precautions to ensure that your body doesn’t get shock from the effort. Exercise a bit beforehand to make sure your body is warmed up for the work ahead.

Asides from preliminary exercising, one other thing that you could do to keep this task safe is to buy the best type of snow shovel out there in the market today. Look for such a snow shovel, and get rid of that snow on your lawn!

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