Active substances: Norfloxacin
Vlieg. Varin Titapiwatanakun, Abdul W. Basit, and Simon Gaisford. Luis Padrela, Miguel A. Velaga, Henrique A.
Matos, and Edmundo Gomes de Azevedo. Juan M.
Scott C. In addition, drug properties could affect the amount of drugs in wastewater. Drug metabolism could be one of the sources of drugs in wastewater. When a person or animal takes an antibiotic, the body metabolizes it to different chemicals, and only a small portion of it used by the body, while the rest excreted through urine and stool, which ultimately ends up in wastewater Harvard Health Letter.
Another property that aids the accumulation of drugs in wastewater is their solubility.
Most drugs are highly soluble in water and readily excreted, which makes it likely that ingested drugs will be transformed by the time they reach environment in varied quantity Gulkowska et al.
On the other hand, the wastewaters generated specifically from the activities of agriculture, and aquaculture has not much of an input of antibiotics into the environment Kummerer.
Wastewater treatment plants in Oman Oman and the Gulf countries have shortage in the abundance of water as the rainfall seasons are minimal in these countries.
There are limited resources of freshwater, making it a huge challenge for agriculture in these countries to cover the least requirements and limiting its varieties. Therefore, it makes for Oman and other Gulf countries desperate to reuse wastewater through wastewater treatment plants and marks it extremely important as well as necessary to depend on them Al-Jassim; Abdul Khaliq et al.
The aim of wastewater treatment plants is to reduce the solid particles available in the water, biodegradable organics, pathogenic bacteria and nutrients such, phosphorus and nitrogen Lindberg; The World Bank Group.
Conventional wastewater treatment plants generally have different phases of treatment: primary, secondary and tertiary or advanced.