How to remove Micro pollutants through ETPs?
Pharmaceutical residues, personal care items, various home chemicals, and biocides/pesticides are all found in municipal wastewaters, ranging from surfactants to heavy metals.
Their fate in wastewater treatment plants determines whether they are released into the environment, where they may cause harm to aquatic life (WWTPs).
Heavy metals, persistent organic pollutants (POPs), brominated flame retardants, and a variety of personal care products (PCPs), as well as easily biodegradable pollutants like surfactants, plastic additives, hormones, a variety of PCPs, some pharmaceuticals, and household chemicals, are usually well removed (>70 percent) in WWTPs, either by sorption onto sewage sludge or by biodegradation. However, high removal efficiencies do not rule out the possibility of aquatic life being harmed by the effluent concentrations, as some of these compounds are poisonous even at extremely low levels.
Several medications, insecticides, and household chemicals (corrosion inhibitors, sweeteners, chelating agents, and phosphorus flame retardants) are only marginally eliminated after treatment. Source control, in combination with advanced treatments like as ozonation and adsorption onto activated carbon, is required to reduce their discharge into surface waters.
What are micro-pollutants?
Micropollutants are chemicals found in water at extremely low concentrations (mg/l to g/l). These micropollutants aren't all that new, but their existence could only be established with the development of increasingly effective analytical techniques. They consist of a diverse variety of primarily anthropogenic compounds that can be found in both surface and subsurface water reserves. Despite the fact that micropollutants exist in minute amounts, they have the ability to destabilize species and entire eco-systems. Fish give one well-known example, in which hormone-active (endocrine) chemicals can cause havoc in the hormone home, resulting in the feminization of the species' males.
There are several types of micropollutants, which are divided into two groups:
· Metals, metalloids, and radioactive elements are examples of mineral micropollutants (lead, cadmium, uranium, mercury, arsenic, antimony, radon, etc.)
· Pesticides, cosmetics, hydrocarbons, solvents, detergents, pharmaceutical compounds, and other organic micropollutants
The type of micro-pollutants to be eliminated, as well as the desired objectives, investment, and operating expenses, all influence the treatment technology used. Every technology has a different scope of action depending on where it is in the treatment chain and the qualities of the raw water that needs to be treated.
Netsol Water is India's leading manufacturer. We offer the methods needed to remove micro-pollutants from water through ETP’s.