Water purification via removal of turbidity and bacteria using Moringa oleifera lam. Seed powder
Malaysian waters are highly turbid and comprising of suspended material such as mud, heavy metals, and bacteria which is not safe for human. Most of the illnesses that are associated with waterborne diseases are cholera, diarrhea, and dysentery. Conventional chemical coagulants in water treatment...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2014
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| Online Access: | http://ethesis.upm.edu.my/id/eprint/13186/1/FP%202018%2051%20-%20T.pdf |
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| Summary: | Malaysian waters are highly turbid and comprising of suspended material such
as mud, heavy metals, and bacteria which is not safe for human. Most of the
illnesses that are associated with waterborne diseases are cholera, diarrhea, and
dysentery. Conventional chemical coagulants in water treatments plants are
unsuitable because of cost (economical factor), non-biodegradable and not safe
for human consumption. This study evaluated the efficiency of Moringa oleifera
seeds in removing turbidity, maintaining water pH level, water color index and
reducing bacterial population using most probable number method (MPN). Water
samples were treated with dry season and rainy season moringa seeds and iron
(ii) sulfate at 0 g/l – 4.0 g/l. The greater turbidity removal was achieved with
iron (ii) sulfate (98.5 %) while drought season moringa seeds removed turbidity
up to 89 % whereas rainy season moringa seeds removed turbidity by 79.7 %.
Meanwhile, the water pH level slightly increases but still within drinkable range
that is 6.0-8.0 for moringa treated waters but the water pH level dropped
drastically to acidity level (3.0) for iron (ii) sulfate. In addition, moringa treated
waters reduced bacterial population by 99 % but waters treated with iron (ii)
sulfate only managed to reduce bacterial population by 74.60 %. In summary,
moringa can be used as an alternative coagulant in treatment plants along with
iron (ii) sulfate to purify waters. |
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