Multicomponent distillation 1) Mass balances The feed flowrate is 350 kmols hr-1 and the feed composition is known: 48 mol% propene‚ 50 mol% propane and 2 mol% butane. The distillate stream composition: 99.9 mol% propene and 0.1 mol% propane. The bottom product stream contains 0.5 mol% propene but the mole fractions of propane and butane are unknown. Therefore‚ mass balances are carried out around the distillate column. Overall mass balance: F=D+B Component mass balance for propene: xFF=yDD+xBB
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Until the 1960s‚ the radio was the only significant electronics in an automobile. All other functions were entirely mechanical or electrical‚ such as the starter motor and the battery charging systems. There were no “intelligent safety systems‚” augmenting the bumper and structural members to protect occupants in case of accidents. Seat belts‚ introduced in the early 1960s‚ were for improving occupant safety and actuated completely mechanically. The driver or one of several mechanical control
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amount of e-waste. According to a report by MOEF (Ministry of Environment and Forests)‚ e-waste from old computers and mobile phones would jump by 500% and 1800% as compared to 2007 levels by 2020 in India. But before that‚ let us understand what exactly e-waste is‚ what are its implications and how companies are trying to curb this by using Green IT. Scenario of e-waste in India: Electronic waste (E-waste) in simple terms‚ refer to the discarded electronic devices. E-waste includes waste generated
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important to ensure everyone’s safety from possible health hazards. The improper waste disposal of garbage is a major sociological problem today due to its capability of contaminating the area in which we live and it’s potential to be lethal to all living things. Its effects increase the risk of adverse health effects in humans and animals‚ causes damage to eco-systems and accelerate the destruction of our environment. The more waste we generate‚ the more we have to dispose of. Bauleni houses many people
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Techniques of Waste Heat Recovery Waste heat recovery is being more used more and more often today as it is becoming more effective‚ due to increasing energy prices‚ technological developments and a decrease in equipment costs. Heat recovery can be classified into three main strategies: recycling energy back into the process‚ recovering the energy for other onsite use and using it to generate electricity in combined heat and power systems. Once the system has been made as efficient as possible before
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to third world countries‚ this is called e-waste. If you don’t want this to happen‚ you can go to The Basil Action Network (BAN)‚ a company that is online and they will have a list of approved recycling centers for all your electronic equipment. “BAN is the world’s only organized group that is focused on confronting global injustice of toxic trade‚ and its impact on the environment.” When I looked further into what the government is doing about e-waste‚ I found that the Environmental Protection
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Mumbai’s Waste Disposal Problems The 110 hectare Deonar dumping ground rises up to seven stories high‚ the dumping ground was opened in 1927 and accepted approximately 1‚450‚000 tonnes of waste in 2006. Currently‚ the site has approximately 9.2 million tonnes of waste in place. Dr Neelam Rane‚ vice-president of Smoke Affected Residents Forum (SARF)‚ said‚ "Until now‚ we were agitated because garbage from all over the city was dumped but now we find even bio-medical waste is being incinerated here
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1-51 Professional Ethics and Toxic Waste 1. Discuss why Rachel has an ethical responsibility to take some action about her suspicion of the illegal dumping of toxic wastes. Rachel has an ethical responsibility to take some action about her suspicion of the illegal dumping of toxic wastes because it is illegal to begin with and even though it might only be a suspicion‚ if it turns out to be true‚ under the eyes of the law if she knew about it and did nothing‚ she is just as guilty as the responsible
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The poem "Let America Be America Again" by Langston Hughes purposefully is reminiscent of Walt Whitman’s "I Hear America Singing" in which Whitman is optimistic about this land of democratic opportunity. Hughes‚ however‚ writing from a black man’s perspective‚ is much less optimistic about what American has been or will be. While Whitman’s’ poem was very unstructured in blank verse‚ Hughes’s poem is more tightly controlled with rhyme‚ tone‚ rhetorical questions‚ and more unified with repeated anaphora
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FOOD WASTAGE Food waste or food loss is food material that is discarded or unable to be used. Various political organisations and entities have their own definition of what constitutes food waste. The causes of wasted food are numerous‚ and occur at the stages of production‚ processing‚ and retailing. As of 2011‚ 1.3 billion tons of food‚ about one third of the global food production‚ are lost or wasted annually.[1] Loss and wastage occurs on all steps in the food . In low-income countries‚ most
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