Implementation of SDGs 6

6. Clean Water and Sanitation

6.3. Water usage and care

6.3.1. Wastewater treatment

Residual water from AC is contained inside gallons. This residual water will be reused for watering plants, radiator water, and cleaning toilets. There are several reasons why we chose these methods for reusing the residual water:

• Watering plants: residual water from AC has a very low to almost no minerals, just like distilled water but not as clean. This kind of water could be reused to water plants that cannot tolerate mineral water, such as carnivorous plants. Carnivorous plants are also known to have bad reactions towards chlorine that is usually found in the faucet water, but cannot be found in residual water from AC.
• Radiator water: rather than mineral water, it is better to use residual water from AC as radiator water because it can help the radiator to maintain cold temperature and keep the engine in good condition. Thus, it will indirectly decrease expenses for car services. Using the residual water from AC for radiator water could be changed every two months.
• Cleaning toilets: there are some elements inside the residual water from AC that could help remove stubborn yellow stains in the toilet. It could be used by pouring the residual water to the toilet, letting it sit for a night, then scrub it like usual in the morning. This will help to make the toilets appear cleaner as well as kill the bacteria inside the toilet.

Other liquid waste at the Faculty of Psychology is disposed through a concrete septic tank to prevent any leakage into the ground.

Evidence: Document

6.3.2. Preventing water system pollution

At the Faculty of Psychology, the liquid waste is disposed through a concrete septic tank. This concrete is used to prevent any possible leakage to the ground around it and polluting the water system inside the ground.

Evidence: Document

6.3.3. Free drinking water provided

The Faculty of Psychology has two drinking-water fountains located near the center of the faculty area. These water fountains are free and could be used by anyone in the area. People who want to use the water fountain can prepare a water bottle to be filled or drink directly from the faucet at the end part of the fountain. We also maintain and clean the water fountains regularly to ensure the safety and hygiene when used. With these drinking-water fountains, all students, staff and visitors can access free and healthy water to drink.

Evidence: Document

6.3.4. Water-conscious building standards

Faculty of Psychology is implementing water-conscious building that can be proven by:

1. Using a Rain Ground Tank System so that rainwater will naturally be absorbed into the ground. We use this system to compensate for the area that cannot naturally absorb water because there are buildings built above those ground. By doing this we utilize the natural water cycle, so the rainwater can be contained and absorbed optimally.
2. The Faculty of Psychology UI has several biopore infiltration holes scattered around the buildings, this is intentionally done to expand the area of water absorption, as a treatment for organic waste, and improve soil health. Soil moisture is quite well maintained, especially during the dry season thanks to biopore infiltration holes. During the rainy season, several buildings that are on a lower surface tend to have the potential for waterlogging, the biopores around the building help effectively in dealing with puddles that may occur. Biopore infiltration holes also help manage organic waste that has accumulated over a certain period.
3. In the Faculty of Psychology’s toilets, we use several water-saving equipment, such as a manual valve that will pour enough water when the button is pressed and stop when it is not. We also use touchless faucets that will automatically stop pouring water, this is used to prevent wasting water because of forgetting to turn off the faucets.

Evidence: Document

6.3.5. Water-conscious planting

The Faculty of Psychology has many greenery plants inside and near the area of the faculty. The plants include banyan tree, kapok tree, and many grass-type plants. These kinds of plants don’t need any maintenance and can be left alone to grow by itself. In the rainy season, we don’t need to water it. While in the dry season, we only need to water it occasionally. Thus, we can save water while maintaining the greenery environment in our faculty.

Evidence: Document

6.4. Water reuse

6.4.1. Water re-use policy

The Faculty of Psychology is reusing residual water from AC for watering plants, radiator water, and cleaning toilets. There are several reasons why we chose these methods for reusing the residual water:

• Watering plants: residual water from AC has a very low to almost no minerals, just like distilled water but not as clean. This kind of water could be reused to water plants that cannot tolerate mineral water, such as carnivorous plants. Carnivorous plants are also known to have bad reactions towards chlorine that is usually found in the faucet water, but cannot be found in residual water from AC.
• Radiator water: rather than mineral water, it is better to use residual water from AC as radiator water because it can help the radiator to maintain cold temperature and keep the engine in good condition. Thus, it will indirectly decrease expenses for car services. Using the residual water from AC for radiator water could be changed every two months. 
• Cleaning toilets: there are some elements inside the residual water from AC that could help remove stubborn yellow stains in the toilet. It could be used by pouring the residual water to the toilet and let it sit for a night, then in the morning scrub it like usual. This will help to make the toilets appear cleaner as well as kill the bacteria inside the toilet.

Evidence: Document

6.5. Water in the community

6.5.2. Promoting conscious water usage

In every toilet at the Faculty of Psychology, a sticker is attached behind the sink faucet for faucets and equipment that does not use automatic sensors as a reminder to save water when using toilet facilities.

Evidence: Document

6.5.4. Sustainable water extraction on campus

The Faculty of Psychology implements the Rain Ground Tank System to extract water. This method makes rainwater naturally be absorbed into the ground. By doing this, we utilize the natural water cycle, so the rainwater can be contained and absorbed optimally.

Evidence: Document