For 20 years, many articles report the presence of new compounds, called "emerging compounds", in wastewater and aquatic environments. The US EPA United States - Environmental Protection Agency defines emerging pollutants as new chemicals without regulatory status and which impact on environment and human health are poorly understood. The objective of this work was to identify data on emerging pollutants concentrations in wastewater, in influent and effluent from wastewater treatment plants WWTPs and to determine the performance of sewage disposal. We collected 44 publications in our database. We sought especially for data on phthalates, Bisphenol A and pharmaceuticals including drugs for human health and disinfectants. We gathered concentration data and chose 50 pharmaceutical molecules, six phthalates and Bisphenol A.
Decentralised Wastewater Treatment Literature Review
DOMESTIC WASTE WATER TREATMENT IN NIGERIA
Screening to separate the large contaminants from the water b. Coagulation to attract small contaminants c. Sedimentation where water sits and finishes coagulation d. Filtration to remove any small remaining contaminants and particles e. Disinfection by disinfecting chemicals such as chlorine to kill microorganism or remaining bacteria 2. Explain the differences between primary, secondary, and tertiary sewage treatment.
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