A critical review of environmental and public health impacts from the activities of evaporation ponds

Copyright © 2021 Elsevier B.V. All rights reserved..

Evaporation ponds (EVPs) are among the most cost-effective, and simple wastewater treatment technologies used in many regions/countries with high solar radiation levels. However, its operational limitations, which include the overflow of wastewater, leakages via liners, and large surface area of the EVP that is exposed to atmosphere, creates a negative feedback to the environment. Therefore, the main aim of this review study of more than a hundred works published a little all over the continents is to provide a summary of various contaminations that are associated with EVPs activities through different environmental compartments. In addition, the impacts of EVP on fauna, human health including the current on-site sustainable mitigation strategies were also reviewed. The first conclusion from this study shows that the most commonly contaminants released into surface waters, groundwater, soil and sediments were heavy metals, pesticides, herbicides, selenium, including several major anions and cations. Non-methane hydrocarbons (NMHCs), volatile organic compounds (VOCs), and particulate matters (PMs) were the main air pollutants emitted from the surfaces of an EVP. Limited data is available about the emissions of atmospheric greenhouse gas (GHGs) especially carbon dioxide (CO2) and methane (CH4) from EVP surfaces. Migratory birds and aquatic organisms are the most vulnerable fauna as EVP wastewaters can cause obstruction of movements, affect diversity, and causes mortalities following the exposure to the toxic wastewater. The study revealed limited data about the potential health risk associated with occupational and environmental exposure to radiological hazards and contaminated drinking water from EVP activities. On-site EVP treatment strategies using bioremediation and electrochemical treatment technologies have shown to be a promising sustainable mitigation approach. Knowledge gaps in areas of GHGs monitoring/modeling, pollution exposure estimation and health risk assessments are urgently required to gain deeper understanding about the impact of EVP activities, and incorporate them into future EVP designs.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:796

Enthalten in:

The Science of the total environment - 796(2021) vom: 20. Nov., Seite 149065

Sprache:

Englisch

Beteiligte Personen:

Amoatey, Patrick [VerfasserIn]
Izady, Azizallah [VerfasserIn]
Al-Maktoumi, Ali [VerfasserIn]
Chen, Mingjie [VerfasserIn]
Al-Harthy, Issa [VerfasserIn]
Al-Jabri, Khalifa [VerfasserIn]
Msagati, Titus A M [VerfasserIn]
Nkambule, Thabo T I [VerfasserIn]
Baawain, Mahad Said [VerfasserIn]

Links:

Volltext

Themen:

Air Pollutants
Evaporation pond
Health effects
Journal Article
Metals, Heavy
Mitigation
Particulate Matter
Pollution
Produced wastewater
Review

Anmerkungen:

Date Completed 15.09.2021

Date Revised 15.09.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.scitotenv.2021.149065

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM328734772