Water purification Essays

  • Water Purification Lab

    460 Words  | 2 Pages

    remove all contaminants from a heterogenous mixture which purifies the water, making it accessible for the society. Furthermore, the sample consisted of the following contaminants, sand, rock, wood, plastic, salt, water, and an unknown metal. When it came to separating the contaminants, the wood and plastic were taken out through the use of tweezers, while the rocks were separated by decanting the mixture of sand and rocks from the water. Also, once the rocks had been filtered out, the sand was separated

  • Essay On Pros And Cons Of Sunscreen

    1136 Words  | 5 Pages

    Every living animal on earth needs ultraviolet rays to survive. It is essential because it causes the body to produce Vitamin D. Vitamin has the role of strengthening our bones, muscles and our immune system. It will also help skin conditions such as psoriasis and in our life it is useful for disinfection and sterilization because it will kill micro-organisms like bacteria and viruses. (1) But UV rays are also a harmful type of electromagnetic radiation to humans. They can cause sunburn and many

  • Microbiology Unit 4

    445 Words  | 2 Pages

    Do Not COPY AND PASTE from any source. Please use your own words to answer. No plagiarism. You Must use Turnitin to submit the exam. Water and Sewage Microbiology: 1. List the steps of in a water purification plant. a. Screening to separate the large contaminants from the water b. Coagulation to attract small contaminants c. Sedimentation where water sits and finishes coagulation d. Filtration to remove any small remaining contaminants and particles e. Disinfection by disinfecting chemicals

  • The Pros And Cons Of Clean Water

    822 Words  | 4 Pages

    Our topic is clean water and sanitation. The product is a tablet that turns any type of substance into clean substance. The water can be sea water, sewage water or any other dirty water. The tablet dissolves into the liquid and releases some of the chemicals to purify the water instantly. The filthiness in the substance will then sink to the bottom, where the other chemicals in the tablet will absorb all the dirt. In this way, the water is completely clean and fresh.

  • Harvest And Fix Spheroids Research Paper

    931 Words  | 4 Pages

    to see and handle during the rest of the procedure. 1.2 Create a Plug of Spheroid-Containing Agarose Gel After the spheroids have been fixed and stained, follow these steps to create a plug of Agarose Gel: 1. Heat the Agarose gel in a 65 °C water-bath to melt the agarose. After it melted, maintain its temperature at 55 °C until it is ready for use. 2. Transfer the spheroids from the 96-well plate to a 15 mL centrifugal tube using a 1000 μL pipette 3. centrifuge the tube for 5 min at 1000

  • Water Bottled Water Lab Report

    1372 Words  | 6 Pages

    see what the safest water to drink is. This will help society to see what type of water the cleanest and safest water to drink is. I will take samples of all the water and grow bacteria from them to see which water has the least contaminants. Purpose: The purpose of this experiment is to compare different types of water, including, well water, city water, bottled water, and water from a water fountain. I plan to take tap water from multiple faucets, with some using well water and others using city

  • Essay On Reflux And Distillation

    743 Words  | 3 Pages

    Methods of purification – Reflux and Distillation There are many ways of purification however reflux and distillation are two widely used methods. Having a similar apparatus makes it simple and easy to use both methods together. Heating under reflux allows a reaction mixture to be heated for a set amount of time without loss of products, reactants or solvent. Distillation is done to refine or isolate the substances from each other. When preparing an ester (an organic compound) the reactants are heated

  • Glycerol Research Paper

    1036 Words  | 5 Pages

    Glycerol is an organic compound that consists of three-carbon chain with a hydroxyl group attached to each carbon and it is physiologically harmless [1]. Glycerol has the following of physical and chemical properties such as high boiling point, negligible vapor pressure, does not require special handling or storage and compatible with most organic and inorganic compounds. Glycerol is a trivalent alcohol with many commercial applications, presently finding its largest use in the pharmaceutical, food

  • Alkyl Halides Lab Report

    825 Words  | 4 Pages

    stand and a pre-set reflux apparatus with clear hoses attached to the condenser. The voltage regulator was set to 40 to begin water flow through the condenser and the application of heat, so the solvent can boil. The reaction was set to reflux for 30 minutes. Upon completion, the round bottom flask cooled for three minutes in a beaker filled with room temperature water and again in a beaker with ice cold

  • Lab Experiment: Isolation Of Caffeine From Tea

    854 Words  | 4 Pages

    The solvent was removed using a rotary evaporator. The melting point was estimated. The obtained mass of caffeine was measured. The percentage yield based on the amount of tea originally used was calculated. 2) Purification of caffeine by sublimation The crude caffeine was transferred to Petri dish. Petri dish was placed on a hot plate and covered with three disks of filter paper. Another petri dish filled with ice was placed just on the top of petri dish covered

  • Isopentyl Acetate Synthesis

    1938 Words  | 8 Pages

    The experiment to attain isopentyl acetate contained various steps and processes. First, we assembled the reflux apparatus by using a 25-mL round-bottom flask, water-cooled condenser, and heating mantel.

  • Essay On Fractional Distillation

    740 Words  | 3 Pages

    are extracted from different plants such as mint, clove and tee tree for example. These raw oils contains impurities that have a bad flavour or odor. Fractional distillation is used to remove or reduce impurities. Solvent recycling and solvent purification is another area where fractional distillation technology is applied. Industry and laboratories use large amount of solvents. Used solvents contain contaminants that can be removed by fractional distillation. The recycled solvents have purities

  • Carmex Research Paper

    1223 Words  | 5 Pages

    Water and Emission of Carmex Lip Care Raw Material Acquisition The Carmex is one of the oldest well-known lip care, lip balm company in United States, it offers lip balms in different proportions, such as in jars, tubes, and lip sticks. Carmex claimed that their “natural” lip balm formula helps remove cracked and peeling skin, and allow soothing and healing dry lip, and the menthol and camphor ingredients provide cool and refreshing tingle. The natural lip balm formula based on four main raw materials

  • Oxalic Acid Synthesis Essay

    1019 Words  | 5 Pages

    upon the various concentrations of silver nitrate solution such as 1mM, 3mM and 5mM and abrupt color changes indicates silver synthesis. 4.8 Oxalic acid preparation: The 100 mg of oxalic acid was weighed and dissolved in 100 ml of double distilled water for chemical silver synthesis. 4.8.1 Oxalic acid silver synthesis: 1mM of ethanol solution of silver nitrate was prepared for silver nanoparticles chemical synthesis and 1ml of oxalic acid silver responsible compound dissolved solution was added upon

  • Melting Point Lab Report

    1142 Words  | 5 Pages

    specific substance. When a substance is impure, it causes the melting point to decrease and the range of the melting point to increase. In order to identify a pure substance, it must be purified in order to get an accurate melting point estimation. Purification can be done through crystallization. Crystallization is one of the simplest and most effecting ways to purify a solid. The procedure involves dissolving the impure solid, gravity filtering the hot solution through fluted filter paper to remove

  • Acetic Anhydride Reaction Lab Report

    1041 Words  | 5 Pages

    (TLC), infrared spectroscopy (IR), and melting point. During the first week, I dissolved 0.512g of aniline in 8.5mL of water, and added 5.5mL of 1M HLC. During this step, I observed that there were bubbles in the solution, especially at the bottom of the beaker. After adding the HLC, there solution had a slight yellow tint. Next, I mixed 0.529g of sodium acetate in 3mL of water and added 0.679g of acetic anhydride to the aniline solution and immediately added sodium acetate. The solution was cooled

  • Spectrophotometric Analysis Of Copper Iodide

    2485 Words  | 10 Pages

    solution. After which the solution was transferred to a Buchner funnel with a moist filter paper and the clear filtrate was collected via suction filtration. The residue was washed with warm solution of 10.035g of KI and 15ml of deionized water. 200ml of water was then added to the filtrate in a 500ml beaker with constant stirring. White solid was formed in the process of addition and the solution was then left undisturbed in an ice bath for 10minutes. Once most of the solids had settled at the base

  • Evolution Of The Waterfront Essay

    2209 Words  | 9 Pages

    Waterfronts are the edges of water along any urban settlement. People often get attracted towards water and hence the necessity of waterfronts. It is the property of water to reflect, move, change and attract people which captures people’s imagination and provides various opportunities from reaction to business, from being passive to active. Rivers were reason for creation of early human settlements and now they act as an important part of any human settlement. The essay talks about how waterfronts

  • YPD Agar Lab Report

    1307 Words  | 6 Pages

    added to 200 ml of distilled water. The mixture was autoclaved (SMS ASL80 MSV) for 1.5 hours at 121°C. On sterile plates, 25-30 ml of the mixture was poured and left to cool down. The yeast cells were then streaked on the agar plates and the cultures were grown in a stationary incubator (S1-600R, Lab Companion) for 72 hours at 30°C. Yeast Growth in YPD: To prepare YPD liquid medium, glucose, peptone and yeast extract were weighed and added to 200 ml of distilled water. The mixture was autoclaved for

  • Grignard Reagent Lab Report

    774 Words  | 4 Pages

    ether. This solution was refluxed in a flask connected to condenser and drying tube. As seen in the mechanism, maintaining a dry condition is important to avoid the Grignard reagent from attacking water, which will result in loss of the bromine. It is important to reduce the amount of moisture and water vapors to avoid destroying the Grignard reagent, which is essential to the synthesis of 2-methylhexanol. Hence, a calcium chloride and cotton were filled inside a drying tube. The condenser was wrapped