Greywater is usually recycled for use in toilet flushing, farm field irrigation, and other various non-potable utilities as it less harmful than black water thus permitting water and environment conservation and reducing wastage of water.
Greywater also known as Sullage Water and Gray Water is the water generated from the dishwasher, shower, laundry, bath and washbasin drains, etc. Greywater is usually recycled for use in toilet flushing, farm field irrigation, and other various non-potable utilities as it less harmful than black water thus permitting water and environment conservation and reducing wastage of water. As the conditions of water supplies are deteriorating due to global warming and reusing and recycling greywater is an imperative solution to our water problems. Greywater generally contains pathogens due to traces of human and animal waste, cross-connections of pipes from black water tanks, effluent streams, etc. As water is becoming more and more valuable, testing greywater is crucial to determine whether the water can be reused or not. Testing of greywater for the marine and offshore industry is also crucial as the discharge of untreated greywater into the marine environment can lead to oxygen depletion, the spread of pathogenic bacteria and viruses, and increased nutrient levels in the surrounding ecosystem.