Poster Presentation : ‘Online Digital Poster Presentation_Biotecnika’ Phycoremediation by using Algae
Presented by ; Debasmita Chakraborty from UEM, Kolkata in ‘Online Digital Poster Presentation’ event at Biotecnika
Abstract
Introduction
Discharge of untreated domestic and industrial wastewater into aquatic bodies is posing a serious eutrophication threat, leading to a slow degradation of the water resources. A number of physical, chemical and biological methods have been developed for the treatment of wastewaters; among these, the use of microalgae is considered as a more eco-friendly and economical approaches. Microalgae are versatile organisms which perform multiple roles in the environment—bioremediation of wastewater, gleaning of excess nutrients and in turn, generate valuable biomass which finds applications in the food, biofuel and pharmaceutical industries. They are currently being utilized to reduce the high nutrient load (especially N and P) from wastewaters.
Results & Observation
Seawater(sali ne) = 97.50%
Polar Ice & Glaciers = 2.50%
Available fresh water = 0.01%
• -Identified by morphological characteristics • -Identified as Chlorella sp. • Strain Name Form
Issues related to environmental pollution are becoming more serious with the increasing population, urbanization, industrialization and their indirect effects on ecosystem services (Rawat et al. 2011; Sood et al. 2012). Even mixing of untreated wastewater in aquatic bodies is emerging up as one of the major issues that is challenging the stability of nations (Renuka et al. 2014; Yang et al. 2008).
Size Shape Pigmentation
• Chlorella sp. Moderate Almost Regular
Greenish
Elevation Elevated
Round
Phycoremediation effectiveness: BOD & COD removal with days
• Phycoremediation is a process of using algae to bio-remediate wastes or wastewaters. The biodiversity of microalgae is enormous and estimated to be about 200,000–800,000 species, out of which about 50,000 species are only described (Starckx 2012).
Materials & Methods
Advantages of Phycoremediation:• 1.Reduces Pollutant load
• Isolation of the Algal Species: Isolated from pond water inside the Jadavpur University campus. • Culture Media Preparation: Bold’s Basal medium(BBM) was used composed of NaNO325 g/l, MgSO4,7 H2O 7.5 g/l, NaCl2.5 g/l, K2HPO47.5 g/l, KH2PO417.5 g/l and CaCl2, 2 H2O 2.5 g/l.
Total Kjehldal Nitrogen & Phosphorus removal with days:
• 2.Eco-friendly process • 3.Produces Biomass • 4.Cost effective treatment Etc… Headin Headin Headin g g g
• Inoculation: 1 ml of diluted sample wastewater (1:100) was added to the 50 ml of culture medium(BBM) • Kept for 10 days at 20oC under illumination
Item Item Item
122 • T759 228
233 856 134
345 290 238
Item Item
954 324
875 325
976 301
• Synthetic Dairy Wastewater Preparation: prepared using dry milk powder of the brand “Amul” .Synthetic Dairy waste water was composed of carbohydrate, protein, fat, Na, K, Ca, Cl, P and other trace metals.
Item
199
137
186
Objectives & Applications
• Identification of the Most Potent Strain
Observation
Conclusions
• The available literature in reports have clearly emphasized and proved beyond doubt that microalgae are efficient in nutrient removal from different types of wastewaters and can be explored for the remediation of these contaminated sites. The response and growth of different types of microalgae in wastewater also vary, because of differences in their inherent ability, especially nutrient uptake; tolerance to harsh/extreme environmental conditions and competitive potential, vis-a-vis indigenous organisms. • Chlorella sp. is very much efficient in removing nutrients(mainly Phosphorus) from wastewater. • BOD and COD reduction percentage is slightly less when compared with phosphorus removal data.
Reuse of waste water after Phycoremediation
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8/21/2020
Online Digital Poster Presentation _ Biotecnika
SLIDE 1