How to reuse of commercial RO System wastewater?
RO water purifiers provide dependable water purification, but they frequently result in unnecessary water waste.
RO water purification is the most dependable of all water purifier technologies. And if the water in your home or office has a high TDS level, you'll have no choice but to use a RO water purifier.
Why Should RO Waste Water Be Reused?
Using RO water purifiers not only provides us with safe, clean, and tasty water, but it also protects us from potentially fatal waterborne diseases. However, there is one significant disadvantage to using RO water purifiers: excessive water waste, that only 25% of the water is purified and 75% of the water is wasted.
How Should RO Waste Water Be Stored?
The simplest solution would be to place the reject pipe in a bucket. However, if one’s daily drinking water requirement is 20 litres, RO water purifier will produce approximately 60 litres of waste water on average. The most difficult part is keeping an eye on the bucket so it doesn't overflow.
Many users may find this inconvenient.
One can extend the RO waste pipe and place it outside your kitchen in a large tank. This stored water can be re-used in one of the ways listed below.
Simple Methods for Reusing RO Reject Water
- 1. RE-USE WASTE WATER BY WASHING YOUR CAR: A single car wash could use anywhere from 14 to 75 litres of water. Car washing every day not only wastes water but is also unnecessary. If onehas a RO water purifier at home/office, one can simply collect the waste water in a tank or bucket and reuse it to wash the car. Water with a TDS of 1200 – 1500 ppm can be used safely for car washing. If the TDS level in the waste water is high, one can dilute it by mixing it with tap water. This should reduce the TDS level.
- 2. RE-USE WASTE WATER BY WATERING THE PLANTS: Watering plants with wastewater can help to keep indoor or terrace garden green. This tip is especially useful for people who live in cities because the TDS level in municipal water is typically lower. Use the RO waste water for 15-20 days to see how it affects plant growth. Each plant will react differently to this change, giving a clear picture of which plants are responding better to RO waste water. TDS levels of up to 2100 ppm are permissible for gardening/irrigation use. One should also look at the sodium percentage, it should be less than 60%. High sodium content reduces soil porosity, which is detrimental to soil fertility in the long run.
- 3. RE-USE WASTE WATER BY CLEANING UTENSILS: Simply collect the waste water in a bucket or tank, and keep the bucket for collecting RO waste water near kitchen sink so one can use it easily when cleaning your utensils.
- 4. RE-USE WASTE WATER BY FLOOR MOPPING: Using RO waste water to mop the floor is simple and will save tens of litres of clean water every day. If the TDS level in the waste water is high (greater than 2000 ppm):
- Dilute waste RO water with equal parts tap water. Because plain reverse osmosis waste water with a high TDS level can stain or leave salt particles on the floor.
- On alternate days, use the RO waste water for floor mopping. This will reduce the possibility of stains or salt deposits.
- 5. RE-USE WASTE WATER BY PRE-RISING LAUNDARY:The RO waste water can be used for daily laundry, but keep in mind that using high TDS water may not be suitable for some delicate fabrics. Washing machines are now used in the majority of Indian homes, however, while they save time and effort, they also waste a lot of water. One can build an overhead tank to collect RO waste water and use the waste water directly in washing machine.
- 6. RE-USE WASTE WATER BY CLEANING TOILETS: The use of toilet flushes is a significant source of clean water waste in modern homes. Each flush flushes approximately 5 to 7 litres of potable water down the drain. By flushing toilets with RO waste water, one can effectively reduce this waste of clean water. When one first start, keep an eye on toilet seats for discoloration on porcelain surfaces after a few days. Discoloration and salt deposits can be avoided with regular cleaning with common toilet cleaners.