What Technologies Can Be Used To Stop Water Pollution
Answers
Answer:
A pollution prevention (P2) technology is one that creates less pollution in its life cycle than the one it replaces. P2 can be achieved in many ways, from better housekeeping and maintenance to redesign of products and processes. The range of P2 technologies is therefore very broad. It includes relatively cleaner technologies, technologies that help other technologies to be cleaner, and certain mass-market technologies. All of them reduce environmental impacts compared to their alternatives. It is important to understand that P2 technology does not include pollution-control or -treatment technologies that do not make the technology producing the pollution any cleaner itself. They just manage the resulting waste.
Relatively Cleaner Technologies
Technology is always advancing and improving. Many new technologies are naturally more energy efficient and less polluting than the ones they replace. Sometimes, this is because they were designed with environmental improvement in mind. Usually, however, it is simply the result of using newer and better materials and components. Therefore, pollution-preventing technologies can be found in every area of a product's life cycle.
Life cycle analysis (LCA) is needed to determine if a particular technology really pollutes less than its alternatives. LCA is the examination of the environmental impacts of a product, from its origins as raw material through processing and production to use and final disposal. This can be a complex process. For example, fluorescent light bulbs may seem to be less polluting than incandescent light bulbs because they use much less energy. However, they actually use polluting chemicals such as mercury that are not found in incandescent light bulbs. So they use less energy, but more toxic chemicals. The choice of indicators for P2 performance and LCA, such as toxicity or energy efficiency, is important for evaluation
Facilitative Technologies Can Be Used To Stop Water Pollution.
Explanation:
- Process controls such as meters and sensors, for example, can make many production processes more efficient and less polluting by providing better control, decreasing waste and defects.
- Centrifuges can minimise the number of solids in wastewater, reducing the pollution of water. A technology for pollution prevention (P2) is one that in its life cycle creates less pollution than the one it replaces.
- In many respects, P2 can be accomplished, from better housekeeping and repairs to material and system overhaul. Therefore, the range of P2 technologies is very wide.
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