FREQUENTLY ASKED QUESTIONS     Index

FAQ’s on Recycled Water

  What is recycled water?
  What are the profits of using recycled water?
  How recycled water is produced?
  Whether recycled water can be used for household applications?
  What are the applications of recycled water?
  Is Recycled Water Safe?
  Is there any difference between recycled and reclaimed water?
  Can municipal wastewater be recycled? If yes which applications can the recycled water are used for?
  What is the full form of ZLD and what does it mean?
  What should be the TDS in cooling tower makeup water?
  Which system is used to treat water for cooling tower makeup applications?
  Which constituents in water does activated carbon remove?
  Which impurities do ultra filtration membranes help in removing?
  What is the full form of SDI?
  Where does recycled water come from?
  Does recycled/reclaimed water need to be kept separate from other water?

  What is recycled water? Go to Top
  Recycled water is the water generated from the treatment of waste and can be suitable for controlled reuse. Recycled water is a high-quality, tertiary-treated water, which is safe for its use in irrigation, toilet flushing, cooling tower make up etc.
  What are the profits of using recycled water?
  Recycled water reduces the demand on fresh water and protects the environment by reducing the discharge of treated effluent.
  How recycled water is produced? Go to Top
  There are four treatment steps that wastewater goes through before it is considered as recycled water: primary treatment, biological treatment (secondary), filtration and disinfection (tertiary). Reverse osmosis process is used for the reduction of dissolved solids concentration in the water.
  Whether recycled water can be used for household applications?
  Yes, recycled water can be used in households for non-drinking purposes such as toilet flushing and garden watering etc.
  What are the applications of recycled water? Go to Top
  Recycled water can be reused for gardening, toilet flushing, cooling tower makeup, floor washing.
  Is Recycled Water Safe?
  Yes, recycled water is safe.
  Is there any difference between recycled and reclaimed water? Go to Top
  No.
  Can municipal wastewater be recycled? If yes which applications can the recycled water are used for?
  Yes municipal wastewater can be recycled. It can be reused for gardening, toilet flushing, floor washing etc.
  What is the full form of ZLD and what does it mean? Go to Top
  ZLD stands for Zero Liquid Discharge. Recovering maximum amount of waste water for recycling and discharging only bagable solids out of the system.
  What should be the TDS in cooling tower makeup water?
  <150 - 250ppm.
  Which system is used to treat water for cooling tower makeup applications? Go to Top
  Reverse Osmosis
  Which constituents in water does activated carbon remove?
  Chlorine, organics and color.
  Which impurities do ultra filtration membranes help in removing? Go to Top
  Turbidity, TSS and Colloidal Silica.
  What is the full form of SDI?
  Silt density index
  Where does recycled water come from? Go to Top
  Recycled water in comes from our sewage treatment plants and effluent treatment plants. Rain water harvesting can be another option.
  Does recycled/reclaimed water need to be kept separate from other water?
  Nonpotable recycled water shall be distributed through a separate pipeline to the users. It shall be completely separated from the drinking water pipeline.