Solid Waste Management Essay

and Boiling Points: The particles/substances which are present in a metal are held or joined together by strong metallic bonds. A lot of energy is used to separate these particles. That is why metals have high melting and boiling point. Metals are solid as well as crystalline. They are arranged in a regular pattern and are held closed together. 2. Electrical Conductivity: Metals conduct electricity. The sea of delocalized electrons are mobile and are free to move around in the 3D structure of…

Methods and Materials 0.4g maleic anhydride and 1ml ethyl acetate was added to a test tube and mixed until dissolved. 2ml hexane was then added to the test tube, followed by 0.4ml cyclopentadiene. The test tube reacted for 5 minutes in a test tube rack and then 2 minutes in an ice-bath to allow for complete crystallization. The crystals were then put through the filtering apparatus to collect and dry all the crystals. About 3ml was used to rinse the crystals while in the apparatus. The…

an example of crystalline structure. When the water begins evaporating, the amount of salt stays the same. As water evaporates, the salt molecules are pushed even more closely together, which causes more salt out of the water and into a solid form. The solid form will then come into a salt crystal. When most of the water evaporates, there is no water left, because of this, the salt crystals begin to form. If the water does not evaporate fast, the salt crystals will take more time until the…

Elizabeth Lee James Poland CHEM 104A 21 September 2014 Discussion and Conclusion of Experiment #4: States of Matter Sleuth Discussion The results of this experiment enabled the experimenter to determine the identity of an unknown salt (#3) using ion-exchange chromatography by analyzing the inorganic salts of the unknown salt, which can be examined by acid-base titration using ion-exchange resin. The stationary phase is made up of acid groups which will attach to the resin, which is then rinsed…

During the first century B.C., the Phoenicians invented glass blowing "in the vicinity of the Palestinian coast" (History of Glass). Used for jewelry, decorative pieces, or vessels, blown glass has been a significant type of glass, having been practiced by numerous cultures across the world. However, glass blowing is a tedious task, requiring "extreme patience, tenacity, and dexterity" and is a long, multi-step process (Sacramento Art Glass). Over time, the difficulty of these numerous steps has…

and to provide all San Diego residents with properly disposed municipal solid waste, along with an environmental free of litter and illegal dumping. In addition, the Environmental Services Department is organized into three operational divisions, which are: (1) the Waste Reduction and Disposal Division (WRAD) manages the waste reduction, refuse disposal, fee booth operation section, franchise administration section, solid waste code enforcement program, and field operation which takes operations…

Introduction Electronic waste management can be referred to as electronic materials that are no longer in use, for example; computers, mobile phones, electronic equipment’s that are found in the office, refrigerators among others (Kahhat et al. 2008). These types of electronic are in most cases kept away for reselling, reusing, for recycle purposes and at times they are scheduled for disposal (Kahhat et al. 2008). Other types of electronic waste usually include re-usable electronics that are…

Athens citizens discarded waste in the streets until legislators banned the practice in 320 B.C., enacting the first recorded waste disposal law. Organized waste collection emerged in the late 1800’s, with metropolises such as such as Boston, New York, Philadelphia and London discarding collected raw debris in the nearest body of water. According to the American Society of Civil Engineers (ASCE), the United States produces over 254 million tons annually. Today, municipal services reduce the…

30-50 years (synonym). Landfills have their pro’s and cons. While the cons seemingly outweigh the cons, they are still present. For example, landfills help with county waste management costs. Counties that control their own waste and landfill management can save “roughly $2 million” (The Courier-Tribune) instead of sending solid waste out of the county. These economic pros are not related to environmental issues, and this is where the cons come into play. While landfills are meant to help the…

awareness and their poor waste management planning. This connection sets the tone for the movie from the beginning scenes as it took viewers on an adventure of public health discovering. The intent or purpose of the film, I believe, was to show the effects of how our lifestyle can manifest in a negative way. I feel that the film was created as an exaggeration of a society much like ours. With…