Thursday, 26 February 2015

Recycling wastage to energy

Coming to waste management, it is always a hassle for the authorities to find a complete solution in disposal of the same. Developing countries like India, where wastages are dumped directly into public places and water resources; it is an intricate situation which is not addressed yet. Polluted air and water are the major cause of environmental crisis in India. Lack of sophisticated system to dispose wastages lets the public and government authorities ignore the importance of neat and clean environment. Social responsibility is always treated as a ‘not my job’ thing by them.

Convert waste to energy

However, this article looks more into the recycling of wastage and generating energy through it. Recycling wastage to energy is a part of waste management. In many developed countries, wastages are used as raw material for producing energy, gas etc. This recycling not only benefits the environment but also reduces the production cost and resources. It is economical and reduces pollution due to wastages dumped into open areas and water resources.

There are many methods used for converting wastages to energy. The most conventional method is direct combustion where the heat generated by wastages is converted to energy using steam turbine. In countries where homes needed to be heated, the heart from wastages is circulated using warm hole. Thus they can avoid the use of electrical equipments to get heat. Fuel also can be generated from waste. Methane generated from landfill gas is a fuel produced from wastage. Anaerobic digestion is another method to produce bio-gas from wastages like sewage, food waste etc. The bio-gas thus produced can be used directly for cooking and heating home.

Along with conventional methods of producing energy from wastage, advanced technologies are also being used by many countries. Gasification is an advanced conversion to produce combustible gas which is a combination of carbon monoxide, hydrogen, carbon dioxide and methane. This gas is ready to use directly for generating heat and electricity. Pyrolysis is another method of conversion to produce combustible gas, oil or solid char (sometimes known as biocoal). Technology can be chosen depending on the nature of available wastage.

The recycling of wastage contributes a lot to the environment, society and health related solutions. Instead of depending of natural resources to produce energy, which often distracts the eco-system, a well planned system to produce energy is more economic and eco-friendly. It not only gives clean and safe environment and water to humane, but it also protects other species that equally shares this world with us. Inhabitants of oceans for example, discharging bulk amount of wastage into ocean have put inverse effect on the inhabitants. Wastages turned poison kills millions of creatures under water and sometimes it leads to the extinction of a species from the earth.

Who would like to live in a stinky atmosphere? Whether it is human or animal, we all need fresh air and water to lead a healthy life. Sophisticated methods to dispose wastage will definitely help in creating a world that smells sweat. 

Tuesday, 24 February 2015

Global Warming

Global warming is the observed rise in climate system and its after effects. The main cause of global warming is the effect of green house gases such as carbon dioxide. Emissions from burning fossils also add to the increase of temperature. Earth's climate is influenced by the atmosphere which is in the first six miles or so. It contains the matters that creates atmosphere. Global warming not only increases the heat but leads to many natural calamities like melting of glaciers which will increase the sea level, ocean acidification, droughts, heavy rainfall etc.

The greenhouse effect is the course of action of emission and absorption of infrared radiation by gas elements in a planet's atmosphere warm its lower atmosphere and surface. Human activities after industrial revolution increased the emission of greenhouse gases to the atmosphere. Deforestation as a part of 'revolutions' also contributed for making the climate instable. Emissions from industrial and household machineries kill the ozone layer in a slow and steady manner. It is after many years, after the increase in the climate changes that we observed it.

The impacts of global warming are not easy to digest. Its hands are too wider than we can imagine. Rising sea level is one of the impacts of global warming. As we know very well, 71% of earth's surface is water. If sea level increases, we will have to change this ratio and live in more congested area. The temperature that grows high makes glaciers in arctic area melt and it causes the increase of sea level. Global warming also affects the rainfall pattern. Unexpected flood or droughts would ruin the lives of all creatures in this planet. Vanishing of animal population is another threat that global warming puts forward. Insufficient resources and unpredictable climate changes will force species to vanish from the surface. We, human being are not safe, it can happen to us too. Outbreak of diseases is another crucial part of global warming. In a situation that is not supportive for survival, diseases can easily spread out and take lives with less effort.

The above said impacts are for those living in land. The creatures living under water also have to face serious effects of global warming. Excessive formation of carbonic acids in the ocean can destroy the eco system under water. Acidification makes water not usable for living. Those creatures which are surviving by eating other creatures starve for food and may die. It is because of the acidification which makes the marine food not eatable.

We can control global warming by rising energy sufficiency, encouraging green transportation, using renewable energy like solar power, bio-gas etc., reducing fossil fuel electricity, managing forests and agriculture, developing technology that avoids the use of carbon or eliminates carbon from every activity.

We have technology, we know how to create things that we need, we can collect data on anything on earth, it is a matter of understanding and commitment to lower the impacts of global warming in coming years.

Sun Burn and protection

Sunburn is a type of radiation burn that affects through over exposure to ultraviolet radiation. It affects living tissues like skin commonly from the Sun. Common symptoms of Sunburn includes reddish skin, dizziness and general fatigue. An excess of UV radiation can be severe in extreme cases. Extreme UV radiation is a leading cause of skin tumors, skin cancer etc. other symptoms of Sunburn are itching, rash, nausea, fever, edema and syncope.

During the past decades, doctors are all the time more aware of the increase in skin cancer. The harm caused by Sunburn includes premature aging, damage to eyes and skin cancer. It is a dangerous and annoying situation to get burned by the Sun. Utmost care should be taken to prevent Sunburn and its consequences. Sunburn also known as sunstroke is nauseating and annoying condition.

Avoiding exposure to the Sun is the most important way to avoid Sunburn. Taking precautions while exposing to the Sun help prevent burns. Most of the Sunburns heal completely within a few weeks. Treatments at home like using cool and wet clothes on sunburned areas, frequent shower in cold water, applying lotions that contain aloe vera etc. are very helpful in sun protection. There are many lotions available in the market for sun protection. However, a few of easy and inexpensive steps can be followed to escape UV radiation while you are going out.

Sun protection in natural ways


Wearing sunglasses is a better way to protect eyes from ultra violet radiation. A sunglass with UV protection shields your eyes while you are in bright sun light areas. A light tinted sunglass is an ideal choice because it keeps your natural aversion to sunlight and pupils remain constricted.


Though not all cloths are UV resistant, it is the most effective defense against Sunburn. While travelling in tropical environments, light colored long sleeved shirts and long trousers are perfect. A shirt with collar can safeguard back of your neck. Wearing shoes and socks is also a good defense against UV radiation.

Sun Lotion

Using sun lotion is another way to prevent Sunburn. However, sun lotions provide only partial protection from UV, it advisable to apply lotion when clothing is not practical. The lotion should be applied on exposed parts of the body like top and bottom of feet and knees where Sunburn is surprisingly quick.

Seek shade

Try to avoid spending more time outdoors during the hours around noon without adequate protection. Planning outdoor activities like swimming or boating in the early morning and late afternoon. In unavoidable situations, try to seek shade whenever possible. Using an umbrella also can reduce the risk of over exposure to the Sun.

Drink Water

Drink water as much as possible to prevent dehydration.

With a little care and precautions, we can easily protect ourselves from Sunburn. Most of the time it is carelessness or unawareness that invites UV radiation. Taking effective measurements while exposing to the Sun is possible through simple and practical habits.