Microalgal biomass generation by phycoremediation of dairy industry wastewater: An integrated approach towards sustainable biofuel production

2016 ◽  
Vol 221 ◽  
pp. 455-460 ◽  
Author(s):  
Kaumeel Chokshi ◽  
Imran Pancha ◽  
Arup Ghosh ◽  
Sandhya Mishra
Keyword(s):  
Dairy Industry ◽  
Integrated Approach ◽  
Biofuel Production ◽  
Microalgal Biomass ◽  
Industry Wastewater

scholarly journals Improving ‘Lipid Productivity’ in Microalgae by Bilateral Enhancement of Biomass and Lipid Contents: A Review

2020 ◽  
Vol 12 (21) ◽  
pp. 9083
Author(s):  
Zahra Shokravi ◽  
Hoofar Shokravi ◽  
Ong Hwai Chyuan ◽  
Woei Jye Lau ◽  
Seyed Saeid Rahimian Koloor ◽  
...  
Keyword(s):  
Growth Rate ◽  
Lipid Production ◽  
Integrated Approach ◽  
Economic Feasibility ◽  
Lipid Productivity ◽  
Biofuel Production ◽  
Strain Selection ◽  
Microalgal Biomass ◽  
Lipid Contents ◽  
Feedstock Production

Microalgae have received widespread interest owing to their potential in biofuel production. However, economical microalgal biomass production is conditioned by enhancing the lipid accumulation without decreasing growth rate or by increasing both simultaneously. While extensive investigation has been performed on promoting the economic feasibility of microalgal-based biofuel production that aims to increase the productivity of microalgae species, only a handful of them deal with increasing lipid productivity (based on lipid contents and growth rate) in the feedstock production process. The purpose of this review is to provide an overview of the recent advances and novel approaches in promoting lipid productivity (depends on biomass and lipid contents) in feedstock production from strain selection to after-harvesting stages. The current study comprises two parts. In the first part, bilateral improving biomass/lipid production will be investigated in upstream measures, including strain selection, genetic engineering, and cultivation stages. In the second part, the enhancement of lipid productivity will be discussed in the downstream measure included in the harvesting and after-harvesting stages. An integrated approach involving the strategies for increasing lipid productivity in up- and down-stream measures can be a breakthrough approach that would promote the commercialization of market-driven microalgae-derived biofuel production.

scholarly journals Utilization of Dairy Industry Wastewater for Nutrition of Microalgae Chlorella vulgaris

2020 ◽  
Vol 1655 ◽  
pp. 012123
Author(s):  
Titin Handayani ◽  
Adi Mulyanto ◽  
Fajar Eko Priyanto ◽  
Rudi Nugroho
Keyword(s):  
Chlorella Vulgaris ◽  
Dairy Industry ◽  
Industry Wastewater

A review on fermentative hydrogen production from dairy industry wastewater

2014 ◽  
Vol 89 (11) ◽  
pp. 1627-1636 ◽  
Author(s):  
Dogan Karadag ◽  
Oguz Emre Köroğlu ◽  
Bestami Ozkaya ◽  
Mehmet Cakmakci ◽  
Sonia Heaven ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Dairy Industry ◽  
Fermentative Hydrogen Production ◽  
Fermentative Hydrogen ◽  
Industry Wastewater

scholarly journals Integrated Approach for Wastewater Treatment and Biofuel Production in Microalgae Biorefineries

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2282
Author(s):  
Sanjeet Mehariya ◽  
Rahul Kumar Goswami ◽  
Pradeep Verma ◽  
Roberto Lavecchia ◽  
Antonio Zuorro
Keyword(s):  
Wastewater Treatment ◽  
Energy Demand ◽  
Energy Production ◽  
Effective Means ◽  
Integrated Approach ◽  
Biofuel Production ◽  
World Population ◽  
Treatment Processes ◽  
Current Scenario ◽  
Valuable Compounds

The increasing world population generates huge amounts of wastewater as well as large energy demand. Additionally, fossil fuel’s combustion for energy production causes the emission of greenhouse gases (GHG) and other pollutants. Therefore, there is a strong need to find alternative green approaches for wastewater treatment and energy production. Microalgae biorefineries could represent an effective strategy to mitigate the above problems. Microalgae biorefineries are a sustainable alternative to conventional wastewater treatment processes, as they potentially allow wastewater to be treated at lower costs and with lower energy consumption. Furthermore, they provide an effective means to recover valuable compounds for biofuel production or other applications. This review focuses on the current scenario and future prospects of microalgae biorefineries aimed at combining wastewater treatment with biofuel production. First, the different microalgal cultivation systems are examined, and their main characteristics and limitations are discussed. Then, the technologies available for converting the biomass produced during wastewater treatment into biofuel are critically analyzed. Finally, current challenges and research directions for biofuel production and wastewater treatment through this approach are outlined.

scholarly journals Experimental analysis on the synergistic effect of combined use of ozone and UV radiation for the treatment of dairy industry wastewater

2020 ◽  
Vol 26 (5) ◽  
pp. 200375-0
Author(s):  
Ramya Suresh ◽  
Baskar Rajoo ◽  
Maheswari Chenniappan ◽  
Manikandan Palanichamy
Keyword(s):  
Uv Radiation ◽  
Dairy Industry ◽  
Oxygen Demand ◽  
Operating Conditions ◽  
Circulation Rate ◽  
Combined Use ◽  
Reduction Efficiency ◽  
Cylindrical Reactor ◽  
Ozone Injection ◽  
Industry Wastewater

The present study focused on the various advanced oxidation processes; Ozone, UV radiation, O<sub>3</sub>/H<sub>2</sub>O<sub>2</sub>, O<sub>3</sub>/UV, UV/H<sub>2</sub>O<sub>2</sub> and O<sub>3</sub>/UV/H<sub>2</sub>O<sub>2</sub> for treatability of dairy industry wastewater. With this aim, the trials were carried out in cylindrical reactor fortified with UV radiation and Ozone injection. Efficiency of the treatment process was evaluated considering Chemical Oxygen Demand (COD), lactose reduction and process parameters were determined to be reaction time, pH, circulation rate, and H<sub>2</sub>O<sub>2</sub> dosage. 32.5%, 35.2% , 25%, 83% COD and 40.6%, 43.6%, 38.2%, 80% lactose reduction efficiency were obtained under the operating conditions for O<sub>3</sub>/H<sub>2</sub>O<sub>2</sub>, O<sub>3</sub>/UV, UV/H<sub>2</sub>O<sub>2</sub> and O<sub>3</sub>/UV/H<sub>2</sub>O<sub>2</sub> processes, respectively. As per this outcome, UV/H<sub>2</sub>O<sub>2</sub>/O<sub>3</sub> process gave more than 65% of COD and 52.36% of lactose reduction efficiency than other hybrid processes. Optimum conditions for UV/H<sub>2</sub>O<sub>2</sub>/O<sub>3</sub> process (pH = 5, time = 180 mins, circulation rate = 50 mL/h and H<sub>2</sub>O<sub>2</sub> dosage of 0.5 mL) resulted in 88% of COD and 93.4% lactose reduction.

scholarly journals Magnetic Field Application to Increase Yield of Microalgal Biomass in Biofuel Production

2020 ◽  
Author(s):  
Lucielen Oliveira Santos ◽  
Pedro Garcia Pereira Silva ◽  
Sharlene Silva Costa ◽  
Taiele Blumberg Machado
Keyword(s):  
Magnetic Field ◽  
Renewable Energy Sources ◽  
Biomass Concentration ◽  
Field Application ◽  
Raw Material ◽  
Biofuel Production ◽  
Microalgal Biomass ◽  
Microalgal Cultivation ◽  
High Yields ◽  
Magnetic Field Application

Use of fuels from non-renewable sources has currently been considered unsustainable due to the exhaustion of supplies and environmental impacts caused by them. Climate change has concerned and triggered environmental policies that favor research on clean and renewable energy sources. Thus, production of third generation biofuels is a promising path in the biofuel industry. To yield this type of biofuels, microalgae should be highlighted because this raw material contains important biomolecules, such as carbohydrates and lipids. Technological approaches have been developed to improve microalgal cultivation under ecological conditions, such as light intensity, temperature, pH and concentrations of micro and macronutrients. Thus, magnetic field application to microalgal cultivation has become a viable alternative to obtain high yields of biomass concentration and accumulation of carbohydrates and lipids.

230 Microalgae as an Alternative Feed Protein: Opportunities and Challenges

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 119-120
Author(s):  
Xingen Lei
Keyword(s):  
Food Security ◽  
Production Performance ◽  
Biofuel Production ◽  
Future Research ◽  
Production Volume ◽  
Food Protein ◽  
Microalgal Biomass ◽  
Global Food Security ◽  
Feed Protein ◽  
Global Food

Abstract A major mission of the animal industry is to help protect global food security with little or no impacts on climate and environment. In fact, the global food security depends on a sustainable protein production and supply. Currently, there is a direct competition between feed and food protein need. As animal feeds use 70–80% of the produced soybean, alternative proteins are required to sustain the industry. This presentation will report research findings from three large consortium projects in exploring the dual application of microalgae as a new generation of feedstock for biofuel production and high-quality feed protein supply. A comprehensive review will be provided on effects of supplemental full- or de-fatted microalgal biomass in diets for broiler chickens, laying hens, pigs, and fish on their production performance, nutrient metabolism and molecular responses, and health values of their products. Discussions will be given on practical concerns over the production cost related to soybean meal, the production volume/scale for a constant supply, and the biosafety and acceptance as a regular ingredient. Future research will be proposed to synchronize the nutritional, health, and sustainability potential of microalgae as a viable feed protein source.

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