sludge is further treated in ’sludge digesters’: large heated tanks in which its chemical decomposition is catalysed by microorganisms. The sludge is largely converted to ’biogas’‚ a mixture of CH4 and CO2‚ which is used to generate electricity for the plant. The liquid is treated by bacteria which break down the organic matter remaining in solution. It is then sent to oxidation ponds where heterotrophic bacteria continue the breakdown of the organics and solar UV light destroys the harmful bacteria. The
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Chlorophyll and Carotenoid Pigments from Spinach Purpose The purpose of this experiment was to isolate ß-carotene‚ chlorophyll-A‚ and chlorophyll-B from spinach using column chromatography. Spinach was dehydrated using ethanol‚ and the pigments were extracted with dichloromethane. The spinach extracts were dried using CaCl2. Then‚ the solid pigments were run through a column using a non-polar solvent‚ hexane. The polar absorbent material in the column separated the different pigments by allowing the least
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Separating Water Soluble and Acetone Soluble Inks through Chromatography Abstract: Chromatography is a term used to define a set of laboratory techniques for the separation of mixtures. Through Chromatography we analyzed complex mixtures. In our recent lab we analyzed complex mixtures. The purpose of this lab was to find whether the water soluble or acetone soluble liquid traveled farther. In our recent lab we measured the distance traveled by the different colored water and acetone soluble
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SPEECH Start with: Respected teachers and my fallows....Good Morning....I am Bilal Sajjad from grade 5........!!!Today my topic is about...!!!...:Telling the truth is the most important thing to do. It’s better to tell the truth‚ admit mistakes and move on. Everybody should tell the truth all the time to feel more comfortable. Of course‚ sometimes they have to use the polite way to express their opinion. It makes life simpler; there is also great humility in admitting mistakes. People appreciate
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Transpiration Abstract This lab demonstrates how different environments effect the rate of transpiration in plants. A potometer is set up and placed in four different environments: one simply at room temperature (the control)‚ one with a fan pointing toward it creating a gentle breeze‚ on with a floodlight on it and a beaker felled with water as a heat sink‚ and one where the leaves are misted then covered with a transparent plastic bag. It is imperative that the tubing doesn ’t have any bubbles
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Thursday‚ October 4th‚ 2012 Tuesday‚ October 9th‚ 2012 Comparing Plant and Animal Cells Abstract The purpose of our lab was to have a better understanding of what are the differences between animal cells and plant cells. Although the cell is the basic unit in both living beings they are not completely alike. For that I have examined and compared human cheek cells to Elodea leaf cells. First‚ I’ve scraped the inside of my cheek with the end of a swab stick to collect the cells then I’ve prepared
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absorption for soil. Emulsified organic janitor fish fertilizer is acidic in nature‚ therefore‚ it is an excellent to salt sensitive plants without damaging them. Fish fertilizer is one of the most powerful liquid organic fertilizers that can be fed to plants. Emulsified organic fish fertilizer is acidic in nature ‚ therefore‚ it is an excellent way to feed to salt sensitive plants without damaging them. a.) Background of the Study This study was conducted to help fishermen to alleviate their problem
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Genetically Modified Plants and Animals Why should we know about the genetic modification of plants and animals? In this world today we are seeing different labels on our foods but does anyone even really know what they mean? For example what is the difference between a regular tomato and an organic tomato? We should know what foods we are consuming and how they affect our bodies. I believe that more regulations should be put into place by the Food and Drug Administration so that we are better
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Contents * Introduction of Pot Marigold/s * Scientific Name * Climate * Mode of Reproduction * Varieties * Benefits to Human and Ecosystem * By Products * Facts Introduction of Pot Marigold Pot Marigold is a plant in the genus Calendula of the family Asteraceae. It is probably native to southern Europe‚ though its long history of cultivation makes its precise origin unknown‚ and it may possibly be of garden origin. It is also widely naturalised further north
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experiment was for each student to use column chromatography to separate plant pigments from spinach leaves. Some goals and objectives were to observe the effect of the increasing polar eluent fractions‚ to analyze the different fractions collected‚ and to correlate the structure of the components with polarity and behavior on a chromatographic column. Background The best method for separating mixtures in organic chemistry is chromatography. Chromatography is the separated of a mixture of two or more
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