Water Quality

Water Quality Coagulation and Flocculation These are the initial procedures during treatment of water. Chemical substances possessing a positive charge are added to water in this compartment. The positive charge neutralizes the negative charge from dirt leading to the formation of huge fragments known as floc.Advertising We will write a custom essay sample on Water Quality specifically for you for only $16.05 $11/page Learn More Sedimentation Floc is heavier than other particles present in water. Therefore, this process allows floc to remain at the base of the tank. Filtration After the sedimentation process, the transparent water at the top of the tank moves across filters consisting of assorted components such as sand, charcoal or gravel. These components have different pore sizes that facilitate the removal of dissolved particles such as dust, microorganisms, and chemicals. Disinfection Disinfectants such as chlorine are then added to the filtered water in the disinfec tion compartment to eliminate any remaining contaminant. The chemicals also safeguard the water from germs during storage and transportation to homes. Storage Clean water is then stored in reservoir tanks from where it is piped to consumers. In the U.S.A., chlorine is generally preferred as a disinfectant over ozone because it has a residual. The presence of a residual is important because it shows that water contains an adequate quantity of chlorine to kill all microorganisms. It also provides defense against recontamination in the course of storage. The existence of free residual in treated water is associated with the absence of harmful microorganisms. Consequently, it is an important factor that gauges the potability of water.Advertising Looking for essay on environmental studies? Let's see if we can help you! Get your first paper with 15% OFF Learn More In recent years, ozone has been replacing chlorine as the primary disinfectant in the U.S.A. One key a dvantage of using ozone to treat water is that there are few byproducts released into the water from the process. The release of many byproducts into treated water usually puts such water at risk. During chlorination of water, additional steps are usually required to get rid of these byproducts. However, ozone treatment of water evades these additional procedures. One other benefit of ozone water purification is that there are no added chemicals that interfere with the natural taste of water. Therefore, the resultant water does not have the characteristic taste of chlorine. However, ozone treatment of water also has disadvantages. It is thought that this procedure releases little quantities of bromate, which is thought to be a carcinogen. In addition, ozone treatment does not offer any residual effect. Therefore, any harmful organism that endures the oxidation procedure evades the entire treatment process.

Real Pirate Quotations

Real Pirate Quotations Note: These are real quotations from actual pirates during the Golden Age of piracy, which lasted roughly from 1700 to 1725. If youre looking for modern quotations about pirates or quotations from movies, youve come to the wrong place, but if youre looking for authentic historical quotations from historys greatest sea-dogs, read on! Anonymous Pirate (Context) When asked on the gallows if he repented. Yes, I do heartily repent. I repent I had not done more mischief; and that we did not cut the throats of them that took us, and I am extremely sorry that you arent hanged as well as we. (Johnson 43) Bartholomew Black Bart Roberts In an honest service there is thin commons, low wages, and hard labor; in this, plenty and satiety, pleasure and ease, liberty and power; and who would not balance creditor on this side, when all the hazard that is run for it, at worst, is only a sour look or two at choking. No, a merry life and a short one, shall be my motto. (Johnson, 244) (Translation: In honest work, the food is bad, the wages are low and the work is hard. In piracy, there is plenty of loot, its fun and easy and we are free and powerful. Who, when presented with this choice, would not choose piracy? The worst that can happen is you can be hanged. No, a merry life and a short one shall be my motto.) Henry Avery (Context) Informing Captain Gibson of the Duke (who was a notorious drunkard) that he was taking over the ship and going pirate. Come, dont be in a fright, but put on your clothes, and Ill let you into a secret. You must know that I am Captain of this ship now, and this is my cabin, therefore you must walk out. I am bound to Madagascar, with a design of making my own fortune, and that of all the brave fellows joined with me...if you have a mind to make one of us, we will receive you, and if youll turn sober, and mind your business, perhaps in time I may make you one of my Lieutenants, if not, heres a boat alongside and you shall be set ashore. (Johnson 51-52) Edward Blackbeard Teach (Context) Before his final battle Damnation seize my soul if I give you quarters, or take any from you. (Johnson 80) (Translation: Ill be damned if I accept your surrender or surrender to you.) Blackbeard Lets jump on board, and cut them to pieces. (Johnson 81) Howell Davis (Context) Dissolving his alliance with pirates Thomas Cocklyn and Olivier La Buse Hark ye, you Cocklyn and la Bouche, I find by strengthening you, I have put a rod into your hands to whip myself, but I am still able to deal with you both; but since we met in love, let us part in love, for I find that three of a trade can never agree. (Johnson 175) Bartholomew Roberts (Context) Explaining to his victims that he was under no obligation to treat them kindly or fairly. There is none of you but will hang me, I know, whenever you can clinch me within your power. (Johnson 214) Black Sam Bellamy (Context) To a Captain Beer, apologizing after his pirates had voted to sink Beers ship after looting it. Damn my blood, I am sorry they wont let you have your sloop again, for I scorn to do anyone a mischief, when it is not for my advantage. (Johnson 587) Anne Bonny (Context) To Calico Jack Rackham in prison after he had decided to surrender to pirate hunters instead of fight. I am sorry to see you here, but if you had fought like a man, you neednt be hanged like a dog. (Johnson, 165) Thomas Sutton (Context) A captured member of Roberts crew, when told by a fellow pirate that he hoped to make it into Heaven. Heaven, you fool? Did you ever year of any pirates going thither? Give me hell, its a merrier place: Ill give Roberts a salute of 13 guns at entrance. (Johnson 246) William Kidd (Context) Upon being sentenced to hang. My Lord, it is a very hard sentence. For my part, I am the innocentest person of them all, only I have been sworn against by perjured persons. (Johnson 451) About These Quotations All of these quotations are directly taken from Captain Charles Johnsons A General History of the Pyrates (page numbers in parentheses refer to the edition below), written between 1720 and 1728 and considered one of the most important primary sources on piracy. Please note that I have made minor cosmetic changes to the quotations such as updating to modern spelling and removing capitalization of proper nouns. For the record, it is unlikely that Captain Johnson actually heard any of these quotations directly, but he did have good sources and it is fair to assume that the pirates in question said, at some point, something reasonably like the quotations listed. Source Defoe, Daniel (Captain Charles Johnson). A General History of the Pyrates. Edited by Manuel Schonhorn. Mineola: Dover Publications, 1972/1999.