Clean Technologies

Topics: Renewable energy, Energy development, World energy resources and consumption Pages: 32 (9592 words) Published: February 10, 2011

1.1 What Is Clean Technology?

Environmental technology or "green technology" is the application of the environmental sciences to conserve the natural environment and resources, and by curbing the negative impacts of human involvement. Sustainable development is the core of environmental technologies. When applying sustainable development as a solution for environmental issues, the solutions need to be socially equitable, economically viable, and environmentally sound. The term "technology" refers to the application of knowledge for practical purposes. The field of "green technology" encompasses a continuously evolving group of methods and materials, from techniques for generating energy to non-toxic cleaning products.

1.2 Goals of Green Technology

Green technology is the future of this society. Its main goal is to find ways to produce technology in ways that do not damage or deplete the Earth's natural resources. In addition to not depleting natural resources, green technology is meant as an alternative source of technology that reduces fossil fuels and demonstrates less damage to human, animal, and plant health, as well as damage to the world, in general. Next, green technology is so that products can be re- used and recycled. The use of green technology (clean technology) is supposed to reduce the amount of waste and pollution that is created during production and consumption

1.3 Forms of green tech

Some environmental technologies that retain sustainable development are; recycling, water purification, sewage treatment, remediation, flue gas treatment, solid waste management, renewable energy, and others. 1.3.1 Recycling

Recycling is a Worldwide Phenomenon, which is a basic application towards the concept of Green Technology. It shows and encourages people to reuse items that can be reusable. Items like saving cans of food or drinks, Paper etc. have been encouraged by the governing bodies around the world, to be recycled so that it can be used in the future for several other purposes. It can thus help protect the environment and cause less waste/pollution. Recycling is processing used materials (waste) into new products to prevent waste of potentially useful materials, reduce the consumption of fresh raw materials, reduce energy usage, reduce air pollution (from incineration) and water pollution (from land filling) by reducing the need for "conventional" waste disposal, and lower greenhouse gas emissions as compared to virgin production. Recycling is a key component of modern waste reduction and is the third component of the "Reduce, Reuse, Recycle" hierarchy. Recyclable materials include many kinds of glass, paper, metal, plastic, textiles, and electronics. Although similar in effect, the composting or other reuse of biodegradable waste – such as food or garden waste – is not typically considered recycling. Materials to be recycled are either brought to a collection center or picked up from the curbside, then sorted, cleaned, and reprocessed into new materials bound for manufacturing. In a strict sense, recycling of a material would produce a fresh supply of the same material—for example, used office paper would be converted into new office paper, or used foamed polystyrene into new polystyrene. However, this is often difficult or too expensive (compared with producing the same product from raw materials or other sources), so "recycling" of many products or materials involve their reuse in producing different materials (e.g., paperboard) instead. Another form of recycling is the salvage of certain materials from complex products, either due to their intrinsic value (e.g., lead from car batteries, or gold from computer components), or due to their hazardous nature (e.g., removal and reuse of mercury from various items) [pic]

1.3.2 Water Purification
Water purification: The whole idea of having dirt/germ/pollution free water flowing throughout...
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