Wastewater is used water. It includes substances such as human waste, food scraps, oils, soaps and chemicals. In homes, this includes water from sinks, showers, bathtubs, toilets, washing machines and dishwashers. Businesses and industries also contribute their share of used water that must be cleaned. It is also known as Grey and Black Water.
Wastewater can be treated naturally or artificially.
Naturally it can be done through Constructed wetlands. A constructed wetland is an organic wastewater treatment system that mimics and improves the effectiveness of the processes that help to purify water similar to naturally occurring wetlands. The system uses water, aquatic plants (i.e.: reeds, duckweed), naturally occurring microorganisms and a filter bed (usually of sand, soils and/or gravel). Constructed wetlands can be used for either secondary or tertiary wastewater treatment.
Artificially it can be treated through STP. In a sewage treatment plant, sewage water is first allowed to pass through screens or grit chambers where large solids are removed. This step is followed by aeration/mixing in a tank and then primary sedimentation where suspended solids settle down.
We create a process to remove the contaminants from wastewater through different techniques and convert it into an effluent. Further through the water cycle this effluent is treated and can be used for various purposes.
