containing denitrifying bacteria will exhibit a faster rate of reduction in nitrate levels. OBJECTIVE:- To denitrify nitrogen (Nitrate and nitrite) rich water. SCIENTIFIC PRINCIPLE INVOLVED:- Incubation of microbes in different concentration of nitrogen (nitrate and nitrite) Detection of time taken for denitrification. Detection of contaminant (nitrate and nitrite) by chemical detection method. WORKING INVESTIGATION:- Thiobascillus bacteria denitrifies the contaminated water. UTILITY:- This project
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the soil. In this experiment our goal is to make our eco column the most efficient and make it the ideal environmental conditions for the organism to survive using data‚ for example we know what levels of nitrite is too high therefore we are going to change the water if the levels of nitrite is too high.
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OBJECTIVE: 1. To distinguish the bacteria abilities to metabolize various substrates and end products formed. 2. To observe the growth of different bacteria species in term of structures and its morphology based on different chemical substance applied. 3. To observe physiological and immunological properties utilized by different species of bacteria. INTRODUCTION: Bacteria biochemical testing can determine the types and numbers in terms of colony forming units of bacteria present in a
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Objective To synthesis methyl orange by coupling diazotised sulphanilic acid with N‚N-dimethylaniline. Materials (Chemicals) Sulfanilic acid‚ 2.5% aqueous sodium carbonate solution‚ sodium nitrite‚ concentrated hydrochloric acid‚ N‚N-dimethylaniline‚ glacial acetic acid‚ 10% aqueous sodium hydroxide‚ saturated sodium chloride solution Apparatus 50 mL Erlemeyer flask‚ 250 mL beaker‚ test tube‚ hot plate‚ Buchner funnels Procedure In a 50 mL Elermenyer flask 1.2 g of sulfanilic acid and
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leaving a vacancy that is filled by the replacement ligand. Under various conditions‚ Cobalt (III) is able to undergo substitution of its ligands. In this lab‚ carbonatotetraamminecobalt (III) nitrate was made. Substitution reactions using chloride‚ nitrite‚ and water were performed to make other Cobalt (III) complexes. They were gravimetrically measured to determine yields and properties. Experimental Step 1: 20.0053g (0.2101mol) of (NH4)2CO3 was added to 60mL of concentrated (14.8M) NH4OH solution
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The International Agency for Research on Cancer(IARC) is a group of scientists and experts who scrutinize the overall evidence on how likely things are to cause cancer. This agency recently announced that processed meat is a carcinogen‚ this announcement is backed by over 800 studies done to link diet to cancer(Dunlop). Processed meat is defined as any meat preserved by smoking‚ curing or salting‚ or with the addition of chemical preservatives; examples include bacon‚ salami‚ sausages‚ hot dogs or
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Abstract The purpose of this paper is to explore the athlete’s performance through the use of performance enhancement drugs. This will include research from four Internet and one non-Internet publications. These publications will include: the affects stimulants and anabolic steroids has on the athlete physiological and psychological along with the use of anabolic androgenic steroids that creates a winning atmosphere where losing is not an option. This research also includes the various types of
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http://en.wikipedia.org/wiki/Nitrogen_cycle Types of Reactions | Description | Nitrogen Fixation | Process of making available nitrogen compounds in the air (mainly molecular nitrogen N2) to plants. | Nitrification | Conversion of ammonia to nitrites and nitrates by aerobic bacteria | Ammonification | When plants and animals die‚ bacteria convert nitrogen nutrients back into ammonium salts and ammonia. | Denitrification | Conversion of ammonia into nitrogen gas by anaerobic bacteria | Table1:
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pH Readings: From the pH results recorded from the two water sources‚ we can clearly see that Kleinfontein Dam has the higher pH levels‚ which indicate poor and unsafe water conditions. From Article two‚ we can see that a High (7.5) or Low (5.5) pH level is very dangerous and harmful to humans who come in contact with the water. The pH Level recordings at 8 and 9 are extreme dangers if they were to come in to contact with humans and also they are way over the borders which is not acceptable at
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The Nitrogen Cycle Nitrogen fixation Atmospheric nitrogen must be processed‚ or "fixed" to be used by plants. Some fixation occurs in lightning strikes‚ but most fixation is done by free-living or symbiotic bacteria. These bacteria have an enzyme that combines gaseous nitrogen with hydrogen to produce ammonia‚ which is then further converted by the bacteria to make their own organic compounds. Conversion of N2 The conversion of nitrogen (N2) from the atmosphere into a form readily available
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