Sustainability and Waste Management Assignment Example | Topics and Well Written Essays - 500 words

Sustainability and Waste Management - Assignment Example There are different methods that can be used to extract unwanted solvents, for instance, boiling, grinding or distilling the unwanted solvent with appropriate solvents which are used less frequently. Blending could also be used especially if it is on a large scale and it is a continuous project. According to Limbachiya & London, determination of the method to use for removing the solvent requires that environmental concerns need to be taken care of, in that the method has to be approved by the Environmental Protection Agency. Regarding this, most United States EPA methods list sonification, a method of blending as a valid mode of extraction. This is very vital since using unauthorized methods could lead to penal action. The efficiency and cost of the method also have to be considered, methods like blending work in 10 to 15 minutes while solvent extraction could take up to twenty-four hours. However solvent extraction is much cheaper, therefore, a balance needs to be created in coming up with a method; costs versus efficiency. Light globes if discarded carelessly present a huge hazard to the environment and it is necessary that appropriate mechanisms should be adopted regarding their disposal. It is even better if the light bulbs are recycled to save vast resources. An office can save on its expenditures if it decides to recycle light globes. To develop an efficient recycling program, an office needs to follow the guidelines outlined in the subsequent paragraphs. A lot of research and learning should be carried out regarding recycling programs around the state the office is located that specifically deal with particular items like light globes. Office equipment should also be included as one of the recyclable items in the chosen company in case there is a need to recycle other items as the recycling system grows.

Fast Food Workers Need Higher Wages Essay -- Raise the Minimum Wage, F

Fast-food workers have been protesting for a minimum wage of $15 dollars an hour and the freedom to unionize. The workers have organized numerous protests this year. During the protests they have walked out and chanted slogans regarding their pay. The main fast-food companies that are effected is McDonald's and Burger King. They both have stated that they will not press charges and indeed are allowing the workers to return. These workers that are participating in the strike doesn’t represent the majority of the fast-food employees. The people participating in the strike are not only youths but adults and elders as well. Due to the countries low employment rate many of these workers are supporting a family or other dependents. This is where most of the fast-food workers are getting their motivation to protest this industry. Unfortunately, many Americans are questioning the negative economic effects of their proposed wage and their lack of worthiness to receive that big of a pa y raise. However, I believe that with some adjustment and research we can find a way to make everyone happy. My solution advises that we support Obama’s nine dollars an hour minimum wage proposal. It will give the fast-food workers financial support, release the burden of the taxpayer’s assistance, and keep inflation balanced. Educated Americans and researchers biggest concern is that their minimum wage proposal is going to negatively affect our economy. For example, they predict that their wage is part of the labor cycle and if it increases it will raise prices for customers. In Brian Jencunas article, he expresses that, â€Å"Virtually anyone can do these jobs with very little training. This means the supply of potential labor exceeds the demand, making sala... ...ish Fast-Food Strikes | National Review Online." National Review Online. National Review Online, 5 Aug. 2013. Web. 18 Nov. 2013. Murray, Matt. "SIEU President Mary Kay Henry Goes On The Colbert Report." NH Labor News. NH Labor News, 13 Aug. 2013. Web. 17 Nov. 2013. Preston, Bryan. "PJ Media." The PJ Tatler RSS. PJ Media, 29 Aug. 2013. Web. 18 Nov. 2013. Sheasley, Chelsea B. "'Super-size' Strike: Why Fast-food Workers Walked out for Higher Wages." The Christian Science Monitor. The Christian Science Monitor, 29 Aug. 2013. Web. 17 Nov. 2013. Traub, Amy, and Catherine Ruetschlin. "Ten Reasons Why Fast Food Workers Deserve A Raise | Common Dreams." Common Dreams. Common Dreams, 29 Aug. 2013. Web. 18 Nov. 2013. Wong, Venessa. "This Is What Would Happen If Fast-Food Workers Got Raises." BloomBerg Business Week. Bloomberg L.P, 2 Aug. 2013. Web. 17 Nov. 2013.

Pablo Neruda

Pablo Neruda was a communist poet. The Chilean won the Nobel Prize in Literature 1971. He wrote The Captain’s Verses in 1952 while he was in exile with his secret lover Matilde Urrutia on the island of Capri. The Captain’s Verses was a collection of his Love Poems that expresses Pablo’s different emotions to his love and the beautiful nature. From the book, we can see how Plabo treasured the time living with Matlide in the adorable exotic place. We can feel his passion, his pain, and his rage. His love poems were permeated with dense patriotism and his homesickness for Chile. Matilde was a singer. Her life was changed after she fell in love with Pablo, the most important person in her life. It would never be easy to stay with a communist. With her faith of love, she had gone through a lot of danger with Pablo and she was also Pablo’s good helper. They had countless sweet and unforgettable moments. Pablo was dead in soon after the military coup of Chile in 1973. They were separated forever since then. The military government treated Maltide as an influential figure in the country because she was the widow of a communist. She had a choice to leave this Chile but she decided to keep on going Pablo’s path and stay in Pablo’s home. Finally, she was able to publish Pablo’s work and write her own memoir. In her memoir, she told her legendary love with Pablo and the struggles she had faced. We can see their love on both Pablo’s poem and Maltide’s memoir. We can see their own perspective in their work. The memoir is a compliment to the poem that everything written by Pablo did happen to Maltide. She gave response and opinion to these experiences. In this essay, I’m going to analyze â€Å"The Soldier’s Love† in The Captain’s Verses from Plabo’s perspective and the view of Maltide’s memoir My Life with PABLO NERUDA. The Soldier’s Love â€Å"was written to Maltide. It is in free verse and there are ten stanzas. The tone of this poem is passionate and it sounds like Pablo is talking to Maltide directly. He used a lot of â€Å"You† to raise the momentum. â€Å"You’ll wear out your shoes/ but you’ll grow on the march/ You have to walk on thorns† (17-19) It sounds powerful and it makes Maltide become confident and dedicated. There are some words that are stressed at the end of the sentence such as â€Å" fire†, â€Å"death†, â€Å"march†, â€Å"blood†, they all stand out in the poem because they accentuate the danger of their future. The poem is well organized: From the second stanza to the fifth stanza, they are all three sentences long. From the sixth to eighth stanza, they are two sentences long. This splits the poem into two parts. The three sentences structure is talking about Maltide’s life before she met Pablo while the two sentences structure is talking about the life she is going to spend with him. The first stanza â€Å"in the midst of war life led you to be the soldier’s love† (1-2) is the introduction. Then the last stanza ends the poem with two equal sentences â€Å" Kiss me again, beloved/ Clean that gun, comrade (21-22) The whole structure of this poem looks very clear. The final stanza is strong to encourage Maltide with their faith of love and the word â€Å"beloved† and â€Å"comrade† shows Pablo’s tremendous passion. Pablo wanted to use this poem to let Maltide understand that her life had come to a turning point and also encourage her to be ready for the challenges coming up in their life. The introduction of the poem indicates that she no longer could enjoy a normal life. In the midst of war life led you to be the soldier’s love† (1-2) Pablo was the soldier fighting for the communist party. Everything would be different when she became a communist’s love. Pablo seemed disapproval of her past because he used â€Å"vagabond† to address her in the poem. He thought Maltide was political ignorant. â€Å"You didn’t know where you were going/ you were the dancing partner/ you had no Party, no country†(9-11) What she had done before was not meaningful at all. She didn’t belong to anyone and anywhere. It was time to abandon her past and fight with him from now on. Now you can’t dance any more/ with your silk dress in the ballroom/ You’ll wear out your shoes/ but you’ll grow on the march† (15-18) Although she couldn’t have the comfortable life like before and she would be suffering a lot, she would learn a different dimension of life joining the fight for the fellow people. The fight of the communist is a long march that it will be full of sufferings. â€Å" You’ll have to walk on thorns/ leaving little drops of blood† (19-20) Maltide should be prepared for any hurt or even death on the way. At last, Pablo encouraged Maltide to be dedicated to their love. Kiss me again, beloved† (21) He urged her to put the focus on their love, then they would not scare any situation coming up. Their faith of love is the best thing to console Maltide and keep her marching. Plabo thought Maltide was ready to fight with him. â€Å"Clean that gun, comrade† (22) She was not only his lover but also his â€Å"comrade†. Maltide was his counterpart who would share any problem with him and fight till the end. In Maltide’s memoir My Life With Pablo Neruda, she retold her terrible experiences that she had never encounter in her life. She had spent an agonizing night on the boat and almost swallowed by the sea. In the hotel, she was treated as a criminal in the hotel. Then she left for Naples with fourteen suitcases. She had been followed by the undercover police from city to city during her journey. Maltide was very angry to these experiences at first. Then Pablo told her about his own experience. She realized everything just happened to her had already occurred on him many times. She got to know why Plabo became a communist. â€Å"He explained how, after his terrible experiences in that civil war, he returned to Chile and kept on fighting, writing about what he had witnessed in Spain. He was already considered the biggest communist of all and figured that â€Å"if protesting and denouncing injustice means being a communist, well alright then,† and he joined the party. He was always a communist, because the suffering of others hut him too much. While he was alive, he put his pen and his life in the service of the people. † (115) After the Maltide learned the reason why Plabo being a communist. She appreciated what he was doing. She admired his passion of helping all the people. Now she could accept being a communist and understand its fight. These experiences deepened Plabo and Maltide’s love because they could know each other even more. However, Pablo’s heart was painful for dragging Maltide into his own sufferings. â€Å" Pablo laughed until he cried as I told him about the Italian police, especially since Pablo had considered me the most politically ignorant woman he ever knew. But I was his love, and from that moment forward, I would take on all that he did and face all the difficulties in his life with him. † (155) Maltide was happy to see Pablo blaming himself for not being able to protect her. They both consider each other very much. Therefore, Maltide made up her mind to dedicate herself to follow Pablo’s path and fight with him together. She didn’t care how dangerous it would be as she was so strong in her love. The poem addressed the changes of Maltide’s life and Pablo encouraged her to take the challenges with their faith of love. In the memoir, Maltide’s talked about her experiences and her own feeling. She started to learn about the adversities of being a soldier’s love. She would stay with Plabo all they way and fight with him. She would use action to respond his poem.

Everything You Need to Know About Sandstone

Sandstone, simply put, is sand cemented together into rock — this is easy to tell just by looking closely at a specimen. But beyond that simple definition lies an interesting makeup of sediment, matrix,  and cement that can (with investigation) reveal a great deal of valuable geologic information. Sandstone Basics Sandstone is a type of rock made from sediment — a sedimentary rock. The sediment particles are clasts, or pieces, of minerals and fragments of rock, thus sandstone is a clastic sedimentary rock. It is composed mostly of sand  particles, which are of medium size; therefore, sandstone is a medium-grained clastic sedimentary rock. More precisely, sand is between 1/16 millimeter and 2 mm in size (silt is finer and gravel is coarser). The sand grains that makeup sandstone are aptly referred to as framework grains. Sandstone may include finer and coarser material and still be called sandstone, but if it includes more than 30 percent grains of gravel, cobble or boulder size its classified instead as conglomerate or breccia (together these are called rudites). Sandstone has two different kinds of material in it besides the sediment particles: matrix and cement. Matrix is the fine-grained stuff (silt and clay size) that was in the sediment along with the sand whereas cement is the mineral matter, introduced later, that binds the sediment into rock. Sandstone with a lot of matrix is called poorly sorted. If matrix amounts to more than 10 percent of the rock, it is called a wacke (wacky). A well-sorted sandstone (little matrix) with little cement is called an arenite. Another way to look at it is that wacke is dirty and arenite is clean. You may notice that none of this discussion mentions any particular minerals, just a certain particle size. But in fact, minerals make up an important part of sandstones geologic story. Minerals of Sandstone Sandstone is formally defined strictly by particle size, but rocks made of carbonate minerals dont qualify as sandstone. Carbonate rocks are called limestone and given a whole separate classification, so sandstone really signifies a silicate-rich rock. (A medium-grained clastic carbonate rock, or limestone sandstone, is called calcarenite.) This division makes sense because limestone is made in clean ocean water, whereas silicate rocks are made from sediment eroded off the continents. Mature continental sediment consists of a handful of surface minerals, and sandstone, therefore, is usually almost all quartz. Other minerals—clays, hematite, ilmenite, feldspar, amphibole, and mica— and small rock fragments (lithics) as well as organic carbon (bitumen) add color and character to the clastic fraction or the matrix. A sandstone with at least 25 percent feldspar is called arkose. A sandstone made of volcanic particles is called tuff.​ The cement in sandstone is usually one of three materials: silica (chemically the same as quartz), calcium carbonate or iron oxide. These may infiltrate the matrix and bind it together, or they may fill the spaces where there is no matrix. Depending on the mix of matrix and cement, sandstone may have a wide range of color from nearly white to nearly black, with gray, brown, red, pink and buff in between. How Sandstone Forms Sandstone forms where sand is laid down and buried. Usually, this happens offshore from river deltas, but desert dunes and beaches can leave sandstone beds in the geologic record too. The famous red rocks of the Grand Canyon, for instance, formed in a desert setting. Fossils can be found in sandstone, although the energetic environments where sand beds form dont always favor preservation. Grand Canyon National Park. Dean Fikar / Getty Images   When sand is deeply buried, the pressure of burial and slightly higher temperatures allow minerals to dissolve or deform and become mobile. The grains become more tightly knit together, and the sediments are squeezed into a smaller volume. This is the time when cementing material moves into the sediment, carried there by fluids charged with dissolved minerals. Oxidizing conditions lead to red colors from iron oxides while reducing conditions lead to darker and grayer colors. What Sandstone Says The sand grains in sandstone give information about the past: The presence of feldspar and lithic grains means that the sediment is close to the mountains where it arose.Detailed studies of sandstone give insight into its provenance—the kind of countryside that produced the sand.The degree to which the grains are rounded is a sign of how far they were transported.A frosted surface is generally a sign that sand was transported by wind—that, in turn, means a sandy desert setting. Various features in sandstone are signs of the past environment: Ripples can indicate the local water currents or wind directions.Load structures, sole marks, rip-up clasts, and similar features are fossil footprints of ancient currents.Liesegang bands are signs of chemical action after burial of the sand. The layers, or bedding, in sandstone are also signs of the past environment: Turbidite sequences point to a marine setting.Crossbedding (truncated, tilted sandstone layering) is a rich source of information on currents.Interbeds of shale or conglomerate may indicate episodes of different climate. More About Sandstone Noppawat Tom Charoensinphon / Getty Images As a landscaping and building stone, sandstone is full of character, with warm colors. It can also be quite durable. The majority of sandstone quarried today is used as flagstones. Unlike commercial granite, commercial sandstone is the same as what the geologists say it is. Sandstone is the official state rock of Nevada. Magnificent sandstone outcrops in the state can be seen at Valley of Fire State Park.   With a great deal of heat and pressure, sandstones turn to the metamorphic rocks quartzite or gneiss, tough rocks with tightly packed mineral grains.