Bioremediation of textile wastewater and successive biodiesel production using microalgae
By Tahir Fazal, Azeem Mushtaq, Fahad Rehman, Asad U Khan, Naim Rashid, W. Farooq, M. Rehman, M. A. U. Rehman, Jian Xu. 2018
246 citations recorded by the source corpus.
Microalgal biodiesel has emerged as an environment friendly alternative to the existing fossil fuels. The commercial production of this biodiesel is still challenging due to several technical and economic issues, which span from mass cultivation of microalgae to the biodiesel production. Mass cultivation is the most critical step in terms of water and nutrient requirement. Industrial wastewater such as textile wastewater (TWW) is a cheap source for water, which additionally contains necessary nutrients (phosphate, nitrates, micronutrients etc.) and organic dyes (potential carbon source) for algae cultivation. The application of microalgae for biodiesel production employing single objective strategy is not sustainable. Microalgae can be effectively employed to bioremediate TWW (dyes and nutrients removal) and to produce biodiesel from grown microalgae. This process integration (bioremediation-biodiesel production) can potentially improve biodiesel production and wastewater treatment. However, this process coupling needs to be thoroughly investigated to identify and optimize critical process factors (algal species, cultivation and harvesting methods, bioremediation mechanism etc.). This study has reviewed the status of TWW as potential source of water and nutrients, role of different algal species in the bioremediation of TWW, different cultivation systems, harvesting and biodiesel production methods. This review also suggests future research and development challenges for coupled textile wastewater treatment and microalgal biodiesel production.
Subfields: Biomedical Engineering, Molecular Biology, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/80d6fd995bbbb010904239b9d4a75b7d5619d0fd
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Citations in the corpus
- Textile finishing dyes and their impact on aquatic environs (2019, background): “The washing of tinted or printed textile articles/fabrics produces a large volume of liquid effluents laden with these dyes and pigments with a variable proportion (10–60 %) cause a waste of 280,000 tons of dyes per year, and chemical products and auxiliaries such as phosphates, nitrates who are dir”
- Microalgae Cultivation Technologies as an Opportunity for Bioenergetic System Development—Advantages and Limitations (2020, unknown): “Essential prerequisites for cost-effective biodiesel production include the development of economically feasible technologies for separation/thickening of algal biomass, as well as oil extraction methods [107].”
- Microalgae Water Bioremediation: Trends and Hot Topics (2020, background): “Closed Culture System Closed systems are usually denominated by photobioreactors and are characterized by not allowing exchanges between the microalgae culture and the external environment [20], presenting different designs, such as tubular, plastic bags, flat-plate and bubble-column [34].”