Grey Water Treatment

Water conservation is fast becoming one of the most important priorities of environmentalists and industrialists alike.


Water treatment systems ensure better conservation and it also save money for everyone, not only for industry. When people save water usage, the household water bills also drop, as do the demands on public water supply. By reducing the amount of grey water with that enters household sewers, the community as a whole also benefits.

  • Description
  • Applications
  • Features and Benefits


Greywater is the wastewater that has already been used in industrial, commercial and even domestic applications like washing machines, showers, baths, spas, dish washers and sinks. On average, over half of household water can be recycled as greywater, saving hundreds of litres of water every day. All waste water besides sewage water (black water) is known as greywater. The main difference between grey and black water is that sewage has a much higher organic loading. Grey water can be put to good use when it has been adequately treated. It is not potable due to bacteria and pathogens dissolved in it which spread diseases. This is why it is important to install a suitable grey water filtration system, to recycle potable water for landscape irrigation, laundry, car washing, and flushing toilets. There are nutrients such as phosphorus and nitrogen present in grey water which provide an excellent food source for plants. Ampac USA grey water systems are applied to mitigate wastewater streams prior to discharge or re-use.

Today, the popularity of grey water recycling and demand for commercially available grey water systems is growing rapidly. Simple systems usually do not treat the water before, dumping it directly onto the landscape. These are diversion devices, such as hoses and pumps, which only transfer and recycle the untreated water directly from the bathroom or washing machine to the garden or toilet.

Ampac USA grey water treatment systems ensure reduction of wastewater streams. More sophisticated filtration systems tend to remove the impurities in the wastewater before irrigation, by the use of a sand filter that gets rid of some of the impurities. When the water goes through the sand filter, then collected in a sump tank and pumped in the direction of irrigation or re-use in the toilet. The wastewater treatment process is carried out following the regulations draughted by the local municipality. It is collected, treated and disinfected at various stages:

  1. Filtration of hair, lint and other solids present.
  2. Pathogen removal with micro-organisms or chemical treatment to balance pH.
  3. Disinfection or sterilization by UV light or chlorination.

Ampac USA provides a range of waste water treatment systems for solving both black and grey water problems. There are products for industrial operations that require dynamic sequencing batch reactors (SBR) as well as systems for small scale commercial and domestic need. To decide which system is best suited for the company, household and environment, it best to examine the existing plumbing and water mains. For instance, if there is a rainwater tank but no access to mains water, or a large amount of grey water is produced every day, it is wise to invest in some sort of recycling system to save water costs.


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