1. Disposing of Waste - Teachers should be aware of the appropriate method of disposal for any chemical used in the school laboratory. When in doubt‚ refer to the MSDS‚ a disposal manual‚ or the source of the chemical. a. Classification of Hazardous Waste The Environmental Protection Agency classifies wastes as: Ignitable: has a flash point below 140°C‚ is an oxidizer‚ or is an ignitable compressed gas. Corrosive: has a pH equal to or below 2.0 or a pH equal to or greater than 12.5. Reactive:
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over are facing today due to their heavy dependence on electronic equipment is that of electronic-waste. Indian companies planning to raise capital abroad have to meet certain environmental regulations‚ which are also required for competitive advantage in marketing and getting insurance for themselves. At present major companies in India dispose off their e-waste through sale to scrap dealers. The waste passes through various processing units‚ mainly unorganised that use child labour and also ergonomically
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Water waste management is the field of handling waste water to make it suitable to either be recycled into a water system or to be disposed of in an environmentally-conscious manner. This is one of the larger problems facing most major cities in the modern world‚ with overflow causing severe pollution problems and increasing population densities stretching existing infrastructure to the breaking point. Both mechanical and biological processes are used to manage wastewater to get rid of undesirable
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Clean Up Of Chemical Waste Chemical spills are major problems that haunt the environment. Strict government regulation are trying help this problem‚ but governmental leaders face many challenges. Disposal of harmful chemicals is often difficult and costly. Since chemical waste has destroyed the environment‚ steps are being taken to prevent further pollution‚ Like the Yucca mountain project. A local based pharmaceutical company named Novo Nordisk released its 1999 environmental report. The company
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with more disposable income in littering the urban scope with the digital detritus of the digital age called E-waste. E-waste is a generic term encompassing various forms of electrical and electronic equipment that may be old‚ might have reached end-of-life and most importantly cease to be of any value to their present owners and it has been identified as one of the fastest growing waste steams. The electrical and electronic goods are broadly classified under three major heads; ’White goods’
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Food Waste? Too valuable to waste! According to statistics from the Environmental Protection Department‚ in Hong Kong‚ solid waste generated daily weighs around 17000 tones‚ of which around 30% is organic matter (2700 tones) which is roughly equal to 120 double-deck buses in size. Compared this to the US where‚ revealed by the Environmental Protection Agency‚ only 12% of waste stream was scrap of food in 2005. Extra care in disposal is required for these putrescible wastes‚ otherwise nuisance
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Electronic Waste The mishandling of electronic waste also referred to as E-Waste‚ has lasting environment and social impacts on underdeveloped and struggling countries that become dumping grounds for unwanted and nonworking electrical and electronic components and devices. Many of the electronic-waste recycling facilities are located in South and East Asia. E-waste is a source of electronic parts and valuable metals for reuse. This industry is only profitable in Asia‚ because laborers work for
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Waste-to-energy Taking Care of Garbage Michelle Rowland Buena Vista University Waste-to-energy Taking Care of Garbage We all have to share this world with its limited resources. We must take advantage of all resources we have‚ regardless if they came from the earth‚ are man made‚ or are waste products. The average person in America throws away 3.7 pounds of garbage every day (Resource Recovery Public Works‚ 2009). It is no surprise that this leads to landfills that are filling faster
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E-Waste‚ The Dark Side of Moore’s Law We should celebrate the great bounty Moore’s Law and the tech industry bestow on our lives. Costs fall‚ workers become more productive‚ innovations flourish‚ and we gorge at a buffet of digital entertainment that includes music‚ movies‚ and games. But there is a dark side to this faster and cheaper advancement. A PC has an expected lifetime of three to five years. A cell phone? Two years or less. Rapid obsolescence means the creation of ever-growing mountains
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July-August 2012‚ pp.1185-1191 Utilization of Waste Plastic as a Strength Modifier in Surface Course of Flexible and Rigid Pavements Afroz Sultana.SK1‚ K.S.B.Prasad2 2 1 PG student‚ Department of civil engineering‚ GMR Institute of Technology‚ Rajam‚ Andhra Pradesh‚ India Assistant professor‚ Dept. of civil engineering‚ GMR Institute of Technology‚ Rajam‚ Andhra Pradesh‚ India Abstract The present study investigates the potential use of waste plastic as a modifier for asphalt concrete and
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