Integrated Approach of Phycoremediation in Wastewater Treatment: An Insight

Abstract

Even after secondary treatment, wastewater has a high convergence of nutrients, which frequently causes eutrophication and different destructive impacts on biological systems. Wastewater treatment is a critical activity that must be considered necessary for the improvement of society. The secondary contamination of sludge formation and disposal also makes the treatment difficult. The vitality and financial amount required for tertiary treatment of wastewater remain an issue for local bodies, limiting its use for treatment. Hence, to address most of the challenges of sewage treatment, an algal-based system can be more affordable and biologically secure with the additional advantages of asset recuperation and reusing. Phycoremediation system even eliminates the need for tertiary treatment. The paper illustrates the benefits and challenges of phycoremediation, with some recent studies on microalgae as a wastewater treatment alternative along with the factors affecting the wastewater treatment through microalgae. The in-depth knowledge of the microalgal treatment in every aspect could result in an advancement to the conventional treatment process if applied in the field.

Phycoremediation of As(III) and Cr(VI) by Desmodesmus subspicatus: Impact on growth and biomolecules (carbohydrate, protein, chlorophyll and lipid) – A dual mode investigation

“…In this direction, modifying the adsorbents or using biological systems or integrated processes are the ways, which will reduce the running cost of a treatment plant, along with producing useful by-products. Bio-based green adsorbents as well as microorganisms (like Chlorella sp., Chlorela vulgaris, Scenedesmus quadricauda, Scenedesmus abundans, Maugeotia genu exa, Ulothrix cylindricum) (dead or alive) were used as one of the trending sustainable and eco-friendly bioremediation methods to overcome these drawbacks (Bahar et The mechanism of remediation of toxic substances using microalgae as the biosorbent has been termed as phycoremediation (Moondra et al 2021). Phycoremediation is a low-cost, sustainable and green process as well as produces considerable amounts of biomass, lipid and energy (Tamil Selvan et al 2020).…”