Carbon dioxide proof analysis and pollutant removal from wastewater based on microalgae

Algae benefit wastewater treatment by producing oxygen, which allows aerobic bacteria to break down organic pollutants in the water and absorb excess nitrogen and phosphorus in the process. Traditional treatment systems are usually expensive and energy-intensive, and they are still not able to solve all the challenges associated with wastewater production. Wastewater treatment using algae is one of the biological treatment methods that can remove a large volume of organic matter and heavy metals at low cost and under completely natural conditions. Studies have shown that algae can remove it through photosynthesis by converting carbon dioxide into organic biomass. Wastewater treatment by algae relies entirely on the ability of algae to absorb and store nutrients in the biomass. Therefore, the removal efficiency will be proportional to the productivity of the biomass. Phototrophic algae are most widely used in algae-based wastewater treatment studies and also on a pilot scale. The use of phototrophic algae in wastewater faces challenges in providing CO۲ and light. Algae-based wastewater treatment can be used in conjunction with bacteria-based wastewater treatment to remove minor nutrients while absorbing CO۲. Algae have a unique ability to remove pollutants from water and are therefore of interest in wastewater treatment. A notable feature of these simple organisms, which have a photosynthetic biological structure, is the absorption of nutrients such as nitrogen and phosphorus from wastewater, which can lead to the prevention of eutrophication.

کلیدواژه ها:

Carbon dioxide ، microalgae ، biofuel ، pollutant ، eutrophication ، wastewater treatment