Amazing nature
The role of microalgae in wastewater treatment
Improving the ecological status of water resources, especially by reducing nitrogen and phosphorus in wastewater, is an issue that many developed and developing countries are focusing on. In recent years, the presence of mixotrophic microalgae as part of wastewater treatment has attracted much attention. Microalgae, including eukaryotic algae and cyanobacteria, are an environmentally friendly and sustainable method for wastewater treatment processes. Mixotrophic microalgae use organic and inorganic carbon, inorganic nitrogen (N) and phosphorus (P) in wastewater for growth. The result of their presence leads to a reduction in the concentration of these substances in water and can bring an important step in wastewater treatment to reduce nitrogen, phosphorus and chemical oxygen demand (COD) in wastewater. Microalgae have shown great potential in removing industrial pollutants such as pharmaceutical pollutants and heavy metals. There are various abiotic and biotic factors on wastewater treatment based on microalgae, which can be mentioned as pH, temperature, and light. The main goal of wastewater treatment is to significantly reduce the amount of carbon materials; Mainly as biological oxygen demand (BOD) and, in cases where sensitive waters are involved, reduction of nitrogen (N) and phosphorus (P) compounds before discharge. The sustainable development of the wastewater treatment system should be technologically feasible, environmentally friendly and economically viable. Regarding operating costs, microalgae systems have low operating costs and can provide a suitable approach in wastewater treatment.
Benefits of wastewater treatment with green algae
Among the most important reasons and use of green algae in sanitary and industrial wastewater treatment, the following can be mentioned:
- Purification and removal of organic and mineral substances in wastewater at low cost
- No need to provide an equipped substrate for algae treatment
- The high power of green algae in removing organic and mineral substances by consuming nitrates and phosphates and injecting oxygen into the water and helping aerobic bacteria to decompose
- Rapid growth of green algae in water treatment plants and rivers
In order to create more knowledge for computer designers, especially creative designers, and the leading culture in Persian language with software, then we can hope that all the difficulty in providing solutions, and difficult typing conditions will end and the time The requirement includes the typesetting of the main achievements, and the answer to the continuous questions of the existing world of design is basically used.
Always challenge the old ways
Considering the high power of algae and performing biological operations to remove organic and mineral substances, this method can be used in different environments, some of which are:
- Treatment of dental wastewater and removal of mercury in its effluents
- Purification of water containing nitrates and phosphates of agricultural and horticultural fields
- Municipal and sanitary wastewater treatment
- Reduction of organic substances and heavy metals in industrial wastewater
