Comparative evaluation of biomass production and bioenergy generation potential of Chlorella spp. through anaerobic digestion

2014 ◽  
Vol 114 ◽  
pp. 790-797 ◽  
Author(s):  
Sanjeev Kumar Prajapati ◽  
Anushree Malik ◽  
Virendra Kumar Vijay
Keyword(s):  
Anaerobic Digestion ◽  
Biomass Production ◽  
Comparative Evaluation ◽  
Bioenergy Generation

scholarly journals An Assessment of Different Integration Strategies of Hydrothermal Carbonisation and Anaerobic Digestion of Water Hyacinth

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5983
Author(s):  
Aaron E. Brown ◽  
Jessica M. M. Adams ◽  
Oliver R. Grasham ◽  
Miller Alonso Camargo-Valero ◽  
Andrew B. Ross
Keyword(s):  
Anaerobic Digestion ◽  
Water Hyacinth ◽  
Large Scale ◽  
Aquatic Macrophyte ◽  
Integration Strategy ◽  
Bioenergy Generation ◽  
Global Presence ◽  
Freshwater Bodies ◽  
Hydrothermal Carbonisation ◽  
Integration Strategies

Water hyacinth (WH) is an invasive aquatic macrophyte that dominates freshwater bodies across the world. However, due to its rapid growth rate and wide-spread global presence, WH could offer great potential as a biomass feedstock, including for bioenergy generation. This study compares different integration strategies of hydrothermal carbonisation (HTC) and anaerobic digestion (AD) using WH, across a range of temperatures. These include (i) hydrochar combustion and process water digestion, (ii) hydrochar digestion, (iii) slurry digestion. HTC reactions were conducted at 150 °C, 200 °C, and 250 °C. Separation of hydrochars for combustion and process waters for digestion offers the most energetically-feasible valorisation route. However, hydrochars produced from WH display slagging and fouling tendencies; limiting their use in large-scale combustion. AD of WH slurry produced at 150 °C appears to be energetically-feasible and has the potential to also be a viable integration strategy between HTC and AD, using WH.

scholarly journals Biomass Production and Nutrient Removal by Chlorella vulgaris from Anaerobic Digestion Effluents

Energies ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1654 ◽  
Author(s):  
Marcin Dębowski ◽  
Paulina Rusanowska ◽  
Marcin Zieliński ◽  
Magda Dudek ◽  
Zdzisława Romanowska-Duda
Keyword(s):  
Anaerobic Digestion ◽  
Biomass Production ◽  
Chlorella Vulgaris ◽  
Nutrient Removal

scholarly journals Assessment of Nutrients Recovery Capacity and Biomass Growth of Four Microalgae Species in Anaerobic Digestion Effluent

Water ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 221
Author(s):  
Paraskevi Psachoulia ◽  
Sofia-Natalia Schortsianiti ◽  
Urania Lortou ◽  
Spyros Gkelis ◽  
Christos Chatzidoukas ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Biomass Production ◽  
Removal Rate ◽  
Assimilation Efficiency ◽  
Nitrogen Sources ◽  
Ammonium Nitrogen ◽  
Nutrient Assimilation ◽  
Recovery Capacity ◽  
Desmodesmus Communis ◽  
Microalgae Growth

Four microalgae species were evaluated for their bioremediation capacity of anaerobic digestion effluent (ADE) rich in ammonium nitrogen, derived from a biogas plant. Chlorella vulgaris, Chlorella sorokiniana, Desmodesmus communis and Stichococcus sp. were examined for their nutrient assimilation efficiency, biomass production and composition through their cultivation in 3.7% v/v ADE; their performance was compared with standard cultivation media which consisted in different nitrogen sources, i.e., BG-11NO3 and BG-11ΝΗ4 where N-NO3 was replaced by N-NH4. The results justified ammonium as the most preferable source of nitrogen for microalgae growth. Although Stichococcus sp. outperformed the other 3 species in N-NH4 removal efficiency both in BG-11NH4 and in 3.7% ADE (reaching up to 90.79% and 69.69% respectively), it exhibited a moderate biomass production when it was cultivated in diluted ADE corresponding to 0.59 g/L, compared to 0.89 g/L recorded by C. vulgaris and 0.7 g/L by C. sorokiniana and D. communis. Phosphorus contained in the effluent and in the control media was successfully consumed by all of the species, although its removal rate was found to be affected by the type of nitrogen source used and the particular microalgae species. The use of ADE as cultivation medium resulted in a significant increase in carbohydrates content in all investigated species.

scholarly journals Utilization of Anaerobic Digestion Supernatant as a Nutrient Source in Microalgal Biomass Production with a Membrane Photobioreactor

2017 ◽  
Vol 15 (6) ◽  
pp. 199-206 ◽  
Author(s):  
Mana Noguchi ◽  
Chizuru Hashimoto ◽  
Ryo Honda ◽  
Yuta Teraoka ◽  
Seng Yang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Biomass Production ◽  
Nutrient Source ◽  
Microalgal Biomass

Effect of food wastewater on biomass production by a green microalga Scenedesmus obliquus for bioenergy generation

2015 ◽  
Vol 179 ◽  
pp. 624-628 ◽  
Author(s):  
Min-Kyu Ji ◽  
Hyun-Shik Yun ◽  
Sanghyun Park ◽  
Hongkyun Lee ◽  
Young-Tae Park ◽  
...  
Keyword(s):  
Biomass Production ◽  
Scenedesmus Obliquus ◽  
Green Microalga ◽  
Bioenergy Generation ◽  
Effect Of Food ◽  
Food Wastewater

scholarly journals Influence of different anoxic time exposures on active biomass, protozoa and filamentous bacteria in activated sludge

2016 ◽  
Vol 74 (3) ◽  
pp. 595-605 ◽  
Author(s):  
S. Rodriguez-Perez ◽  
F. G. Fermoso ◽  
C. Arnaiz
Keyword(s):  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Biomass Production ◽  
Reduction Method ◽  
Wastewater Treatment Plants ◽  
Biomass Concentration ◽  
Sludge Reduction ◽  
Filamentous Bacteria ◽  
Active Biomass

Medium-sized wastewater treatment plants are considered too small to implement anaerobic digestion technologies and too large for extensive treatments. A promising option as a sewage sludge reduction method is the inclusion of anoxic time exposures. In the present study, three different anoxic time exposures of 12, 6 and 4 hours have been studied to reduce sewage sludge production. The best anoxic time exposure was observed under anoxic/oxic cycles of 6 hours, which reduced 29.63% of the biomass production compared with the oxic control conditions. The sludge under different anoxic time exposures, even with a lower active biomass concentration than the oxic control conditions, showed a much higher metabolic activity than the oxic control conditions. Microbiological results suggested that both protozoa density and abundance of filamentous bacteria decrease under anoxic time exposures compared to oxic control conditions. The anoxic time exposures 6/6 showed the highest reduction in both protozoa density, 37.5%, and abundance of filamentous bacteria, 41.1%, in comparison to the oxic control conditions. The groups of crawling ciliates, carnivorous ciliates and filamentous bacteria were highly influenced by the anoxic time exposures. Protozoa density and abundance of filamentous bacteria have been shown as promising bioindicators of biomass production reduction.

Biomass production and nutrients removal by a new microalgae strain Desmodesmus sp. in anaerobic digestion wastewater

2014 ◽  
Vol 161 ◽  
pp. 200-207 ◽  
Author(s):  
Fang Ji ◽  
Ying Liu ◽  
Rui Hao ◽  
Gang Li ◽  
Yuguang Zhou ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Biomass Production ◽  
Nutrients Removal
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