Cultivation ofDesmodesmus subspicatusin a tubular photobioreactor for bioremediation and microalgae oil production

2013 ◽  
Vol 35 (2) ◽  
pp. 209-219 ◽  
Author(s):  
Pablo Gressler ◽  
Thiago Bjerk ◽  
Rosana Schneider ◽  
Maiara Souza ◽  
Eduardo Lobo ◽  
...  
Keyword(s):  
Oil Production ◽  
Tubular Photobioreactor ◽  
Microalgae Oil

scholarly journals Reduction in Energy Requirement and CO2 Emission for Microalgae Oil Production Using Wastewater

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1641 ◽  
Author(s):  
Riaru Ishizaki ◽  
Ryozo Noguchi ◽  
Agusta Samodra Putra ◽  
Sosaku Ichikawa ◽  
Tofael Ahamed ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Crude Oil ◽  
Co2 Emission ◽  
Energy Requirement ◽  
Treatment Plant ◽  
Material Balance ◽  
Oil Production ◽  
Co2 Absorption ◽  
Direct Energy ◽  
Microalgae Oil

A comparative evaluation of energy requirement and CO2 emission was performed for native polyculture microalgae oil production in a wastewater treatment plant (WWTP). The wastewater provided nutrients for algae growth. Datasets of microalgae oil production and their details were collected from the Minamisoma pilot plant. Environmental impact estimation from direct energy and material balance was analyzed using SimaPro® v8.0.4. in two scenarios: existing and algal scenarios. In the existing scenario, CO2 emission sources were from wastewater treatment, sludge treatment, and import of crude oil. In the algal scenario, CO2 emission with microalgae production was considered using wastewater treatment, CO2 absorption from growing algae, and hydrothermal liquefaction (HTL) for extraction, along with the exclusion of exhausted CO2 emission for growing algae and use of discharged heat for HTL. In these two scenarios, 1 m3 of wastewater was treated, and 2.17 MJ higher heating value (HHV) output was obtained. Consequently, 2.76 kg-CO2 eq/m3-wastewater in the existing scenario and 1.59 kg-CO2 eq/m3-wastewater in the algal scenario were calculated. In the HTL process, 21.5 MJ/m3-wastewater of the discharged heat energy was required in the algal scenario. Hence, the efficiency of the biocrude production system will surpass those of the WWTP and imported crude oil.

scholarly journals Engineering Study of a Pilot Scale Process Plant for Microalgae-Oil Production Utilizing Municipal Wastewater and Flue Gases: Fukushima Pilot Plant

Energies ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1693 ◽  
Author(s):  
Nugroho Sasongko ◽  
Ryozo Noguchi ◽  
Junko Ito ◽  
Mikihide Demura ◽  
Sosaku Ichikawa ◽  
...  
Keyword(s):  
Pilot Plant ◽  
Municipal Wastewater ◽  
Oil Production ◽  
Pilot Scale ◽  
Flue Gases ◽  
Process Plant ◽  
Engineering Study ◽  
Microalgae Oil

Life Cycle Assessment for Microalgae Oil Production

2012 ◽  
Vol 1 (2) ◽  
pp. 68-78 ◽  
Author(s):  
John Benemann ◽  
Ian Woertz ◽  
Tryg Lundquist
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Oil Production ◽  
Microalgae Oil

scholarly journals Microalgae Oil Production Using Wastewater in Japan—Introducing Operational Cost Function for Sustainable Management of WWTP

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5310
Author(s):  
Riaru Ishizaki ◽  
Agusta Samodra Putra ◽  
Sosaku Ichikawa ◽  
Tofael Ahamed ◽  
Makoto M. Watanabe ◽  
...  
Keyword(s):  
Cost Function ◽  
Waste Heat ◽  
Treatment Plant ◽  
Oil Production ◽  
Cost Effective ◽  
Energy System ◽  
Co2 Absorption ◽  
Operational Cost ◽  
Treatment Volume ◽  
Microalgae Oil

A comparative evaluation of economic efficiency was performed for native polyculture microalgae oil production in an oxidation ditch (OD) process wastewater treatment plant (WWTP). A cost function was developed for the process. The operational cost per 1 m3 of wastewater (w.w.) was 1.34 $/m3-w.w. in the existing scenario, 1.29 $/m3-w.w. in algal scenario A (no cost for CO2 and waste heat) and 1.36 $/m3-w.w. in algal scenario B (no cost for CO2). The conditions were set as follows: hydraulic retention time (HRT): 4 days, microalgal productivity: 0.148 g/L and daily treatment volume: 81.6 m3-w.w./d. The cost differences were related to the increase in polymer flocculants for algae separation (+0.23 $/m3-w.w), carbon credits from CO2 absorption (−0.01 $/m3-w.w), the sales of biocrude (−0.04 $/m3-w.w) and sludge disposal (−0.18 $/m3-w.w). Hence, the introduction of the algae scenario was the same cost-effective as the existing scenario. Microalgae oil production in an OD process WWTP can serve as a new energy system and reduce the environmental load in a society with a declining population.

scholarly journals Microalgae Oil Production: A Downstream Approach to Energy Requirements for the Minamisoma Pilot Plant

Energies ◽  
2018 ◽  
Vol 11 (3) ◽  
pp. 521 ◽  
Author(s):  
Dhani Wibawa ◽  
Muhammad Nasution ◽  
Ryozo Noguchi ◽  
Tofael Ahamed ◽  
Mikihide Demura ◽  
...  
Keyword(s):  
Pilot Plant ◽  
Oil Production ◽  
Energy Requirements ◽  
Microalgae Oil

Russian Oil: Production and Exports

2003 ◽  
pp. 136-146
Author(s):  
K. Liuhto
Keyword(s):  
Baltic Sea ◽  
Statistical Data ◽  
Oil Production ◽  
The Baltic Sea ◽  
North West ◽  
The North ◽  
Oil Transportation ◽  
Sea Ports ◽  
The Baltic

Statistical data on reserves, production and exports of Russian oil are provided in the article. The author pays special attention to the expansion of opportunities of sea oil transportation by construction of new oil terminals in the North-West of the country and first of all the largest terminal in Murmansk. In his opinion, one of the main problems in this sphere is prevention of ecological accidents in the process of oil transportation through the Baltic sea ports.

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