from: http://www.greenandpractical.com/water.htm
Introduction
Gray water is the waste water which comes from home or office building. There is a belief about a watering plant with gray water. One of them is watering with laundry water. It has believed that can help plant growing better than watering with a water by many people. If it is true it can help me reduce waste water from my room. Moreover, it can help people to save the world by reducing toxic of gray water.
Methodology
This experiment is divided into two parts. First is seeding of a Mung been. Second, growing a sprout of Mung beans.
1) Seeding
1. Roll 2 sheet of Kleenex together.
2. Drop 4 seeds of Mung beans into Kleenex.
3. Watering the seed with normal water.
4. Do step 1-3 again, but change normal water to a gray laundry water.
5. Compare 2 of a group of seed together; height, growing and number of leaves.
6. Do step 5 once a day for 5 weeks.
2) Planting a sprout
1. Drop a soil into each small flowerpot.
2. Drop sprout to each flowerpot.
3. Water each of two sprouts with normal water.
4. Water another sprout with gray laundry water.
5. Compare each of a group of seed together; heigh.
6. Do step 5 once a day for 5 days.
Materials & Equipment
1) 6X2=12 seeds of Mung beans
2) 6 sprout of Mung beans
3) soil for plant saplings
4) sheet of Kleenex
5) a flowerpot
6) water
7) gray laundry water
Result
In the result, I am only studying about planting or growing a sprout. Seeding doesn't work for watering a plant with waste water because pH levels are too hight.
In the result, I am only studying about planting or growing a sprout. Seeding doesn't work for watering a plant with waste water because pH levels are too hight.
| Baby green No. | Day3 | Day4 | Day5 | Day6 | Day7 |
| 1 | 1 | 2 | 3.2 | 3.5 | 5 |
| 2 | 0.7 | 2.2 | 3.5 | 4.5 | 5.5 |
| 3 | 0.9 | 2.3 | 2.6 | 3.6 | 4.7 |
| 4(control) | 0.7 | 1.3 | 1.7 | 1.9 | 2.1 |
| 5(control) | 0.6 | 1.5 | 1.8 | 2.1 | 2.2 |
| 6(control) | 0.9 | 1.2 | 1.4 | 1.5 | 1.5 |
This table showed the relative between the number of baby green and
it height in each day.
it height in each day.
Conclusion
The result shows that greywater makes an effect to the baby green. They can growth better in a normal environment. Greywater seems to make baby green growth slowly and it can make baby green die.
Discussion
Gray laundry water can be used for watering a plant, but it need to untoxic before use. Because of NaOH (also known as sodium hydroxide) in washing liquid has too high pH levels for watering a plant. The normal pH to watering a plant is about 6-8, but pH of grey water from laundry is about 9-10. If you use an untreated grey loundry water to watering your plant, it can kill all your tree. However, if grey loundry water is pH balance, various of nutrient in it can help plant growing better.
The result shows that greywater makes an effect to the baby green. They can growth better in a normal environment. Greywater seems to make baby green growth slowly and it can make baby green die.
Discussion
Gray laundry water can be used for watering a plant, but it need to untoxic before use. Because of NaOH (also known as sodium hydroxide) in washing liquid has too high pH levels for watering a plant. The normal pH to watering a plant is about 6-8, but pH of grey water from laundry is about 9-10. If you use an untreated grey loundry water to watering your plant, it can kill all your tree. However, if grey loundry water is pH balance, various of nutrient in it can help plant growing better.
*this is not a picture of this experiment
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