Hypothesis: The point of our project is to find or create a coagulant and flocculant for water purification as ecologically as possible. We will test different substances and chemicals to clean water found in nature, excluding rivers, lakes and oceans. The outcome of the project is the result from the testing to see what substance or combination is best in following categories: ecological, efficiency and availability.
Methods: The project doesn't have a final product so prototype is not needed. However the testing requires several methods to purify the water. These methods have different aim in the purification process. We decided to choose pH, jar test and absorption for this task as all of them are important scenarios overall in water treatment and are needed in most cases.
pH is to measure the acidity and basicity of the water. The measuring itself is simple as pH meter is a common equipment found in almost every laboratory. For our case pH can affect how the different coagulants and flocculants work and perform. The pH scale for non-toxic natural waters is between 6 to 8 with 7 being pure, clean water.
Jar test is a common, easy and fast test to see how the substances work in removing dissolved solids and/or turbidity in water or in other words coagulating and flocculating. The test is done to figure out different parameters such as mixing speed, chemical doses etc. for the larger scale purification. This is as close we can get to the prototype since jar test is basically a simulation.
Absorption is used to specify the color of the water with spectrofotometer. This is to measure the turbidity of the water when visual inspection is not enough. This requires the water to be cleared of solids as they interfere with the measurement. The point is to have the water be as clear as possible to ensure it is purified properly
Each of these methods are commonly used in water treatment. They are not the only methods as different kinds of water have different conditions and therefore need different treatments. These methods are result of our brainstorming session we had beforehand.
Methods: The project doesn't have a final product so prototype is not needed. However the testing requires several methods to purify the water. These methods have different aim in the purification process. We decided to choose pH, jar test and absorption for this task as all of them are important scenarios overall in water treatment and are needed in most cases.
pH is to measure the acidity and basicity of the water. The measuring itself is simple as pH meter is a common equipment found in almost every laboratory. For our case pH can affect how the different coagulants and flocculants work and perform. The pH scale for non-toxic natural waters is between 6 to 8 with 7 being pure, clean water.
Jar test is a common, easy and fast test to see how the substances work in removing dissolved solids and/or turbidity in water or in other words coagulating and flocculating. The test is done to figure out different parameters such as mixing speed, chemical doses etc. for the larger scale purification. This is as close we can get to the prototype since jar test is basically a simulation.
Absorption is used to specify the color of the water with spectrofotometer. This is to measure the turbidity of the water when visual inspection is not enough. This requires the water to be cleared of solids as they interfere with the measurement. The point is to have the water be as clear as possible to ensure it is purified properly
Each of these methods are commonly used in water treatment. They are not the only methods as different kinds of water have different conditions and therefore need different treatments. These methods are result of our brainstorming session we had beforehand.
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