scholarly journals Development of Sustainable Phycoremediation With the Help of Chlorella Pyrenoidosa for Textile Wastewater Analysis Using Response Surface Methodology

2020 ◽  
Author(s):  
Shubhangi Mishra ◽  
Pradeep Kumar Srivast ◽  
Virendra Singh ◽  
Monika Sharma
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Biomass Productivity ◽  
Textile Wastewater ◽  
Optimal Growth ◽  
Chlorella Pyrenoidosa ◽  
Biofuel Production ◽  
Aquatic Life ◽  
Chlorella Sp ◽  
Textile Wastewaters

Abstract The uncontrolled utilization for the textile products is increasing year by year resulting with the elevating wastewater generated from the textile industries, which makes it among the prevalent sources of critical environmental deteoration issue globally. Products obtained from the dyes used are the primary toxic product for aquatic life, they cause aesthetic pollution, eutrophication, perturbation and increase in BOD and COD in aquatic life. Three types of textile wastewaters (Acid Yellow dye, Acid orange dye and Basic pink dye) has been used for wastewater treatment and microalgal (Chlorella pyrenoidosa) biomass production. Nitrogen content in textile wastewaters is very less, hence urea is used as nitrogen source in wastewater. Optimal growth condition (Urea-0.4g/L, wastewater- 40%(v/v)) is developed through Response surface methodology (RSM). The biomass productivity for chlorella sp. is 1.2-1.5 g/L/day in textile wastewaters. The reduction efficiency of COD, Nitrate-N Ammonia-N, Phosphate-P, and Dye(color) removal for Chlorella is 90-95%, 75-85%, 90-98%, 65-74% and 40-65%.After harvesting the Biomass by flocculation method it can be used for biofuel production by in-situ transesterification.

scholarly journals Development of Sustainable Phycoremediation with the help of Chlorella Pyrenoidosa for Textile Wastewater Analysis using Response Surface Methodology

2020 ◽  
Author(s):  
Shubhangi Mishra ◽  
Pradeep Srivast ◽  
Virendra Singh ◽  
Monika Sharma
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Biomass Productivity ◽  
Textile Wastewater ◽  
Optimal Growth ◽  
Chlorella Pyrenoidosa ◽  
Biofuel Production ◽  
Aquatic Life ◽  
Chlorella Sp ◽  
Textile Wastewaters

Abstract The uncontrolled utilization for the textile products is increasing year by year resulting with the elevating wastewater generated from the textile industries, which makes it among the prevalent sources of critical environmental deteoration issue globally. Products obtained from the dyes used are the primary toxic product for aquatic life, they cause aesthetic pollution, eutrophication, perturbation and increase in BOD and COD in aquatic life. Three types of textile wastewaters (Acid Yellow dye, Acid orange dye and Basic pink dye) has been used for wastewater treatment and microalgal (Chlorella pyrenoidosa) biomass production. Nitrogen content in textile wastewaters is very less, hence urea is used as nitrogen source in wastewater. Optimal growth condition (Urea-0.4g/L, wastewater- 40%(v/v)) is developed through Response surface methodology (RSM). The biomass productivity for chlorella sp. is 1.2-1.5 g/L/day in textile wastewaters. The reduction efficiency of COD, Nitrate-N Ammonia-N, Phosphate-P, and Dye(color) removal for Chlorella is 90-95%, 75-85%, 90-98%, 65-74% and 40-65%.After harvesting the Biomass by flocculation method it can be further used for biofuel production by in-situ transesterification.

scholarly journals Subcritical Water Extraction of Chlorella pyrenoidosa: Optimization through Response Surface Methodology

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Selvakumar Thiruvenkadam ◽  
Shamsul Izhar ◽  
Yoshida Hiroyuki ◽  
Razif Harun
Keyword(s):  
Response Surface Methodology ◽  
Reaction Time ◽  
Response Surface ◽  
Reaction Temperature ◽  
Subcritical Water ◽  
Chlorella Pyrenoidosa ◽  
Water Extraction ◽  
Biofuel Production ◽  
Oil Yield ◽  
Subcritical Water Extraction

Subcritical water extraction (SCW) was used to extract oil from Chlorella pyrenoidosa. The operational factors such as reaction temperature, reaction time, and biomass loading influence the oil yield during the extraction process. In this study, response surface methodology was employed to identify the desired extraction conditions for maximum oil yield. Experiments were carried out in batch reactors as per central composite design with three independent factors including reaction temperature (170, 220, 270, 320, and 370°C), reaction time (1, 5, 10, 15, and 20 min), and biomass loading (1, 3, 5, 10, and 15%). A maximum oil yield of 12.89 wt.% was obtained at 320°C and 15 min, with 3% biomass loading. Sequential model tests showed the good fit of experimental data to the second-order quadratic model. This study opens the great potential of SCW to extract algal oil for use in algal biofuel production.

scholarly journals Formulation of a minimal nutritional medium for enhanced lipid productivity in Chlorella sp. and Botryococcus sp. using response surface methodology

2018 ◽  
Vol 77 (6) ◽  
pp. 1660-1672 ◽  
Author(s):  
Rashi Vishwakarma ◽  
Dolly Wattal Dhar ◽  
Sunil Pabbi
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Large Scale ◽  
Biomass Productivity ◽  
Biodiesel Production ◽  
Lipid Yield ◽  
Chlorella Sp ◽  
Nutritional Medium ◽  
Single Super Phosphate ◽  
Muriate Of Potash

Abstract Chlorella sp. MCC 7 and Botryococcus sp. MCC 31 were investigated to enable large-scale biodiesel production from minimal constituents in the growth medium. Response surface methodology (RSM) was used to maximise the biomass productivity and lipid yield using only nitrogen (N), phosphorus (P) and potassium (K) as urea, single super phosphate and muriate of potash. The optimum values were 0.42 g/L nitrogen; 0.14 g/L phosphorus and 0.22 g/L potassium for Chlorella sp.; and 0.46 g/L; 0.14 g/L and 0.25 g/L for Botryococcus sp. Lipid yield of 42% for Chlorella sp. and 52% in Botryococcus sp. was observed. An enhancement in lipid yield by approximately 55% for Chlorella sp. and 73% for Botryococcus sp. was registered as compared to original nutrient medium. Fourier transform infrared (FTIR) analysis of extracted lipids revealed characteristic bands for triglycerides. This study provided utilisation of a practicable nutrient recipe in the form of N, P, K input for enhanced lipid yield from the selected microalgal strains.

scholarly journals Optimizing of Microalgae Scenedesmus sp. Biomass Production in Wet Market Wastewater Using Response Surface Methodology

2021 ◽  
Vol 13 (4) ◽  
pp. 2216
Author(s):  
Najeeha Mohd Apandi ◽  
Mimi Suliza Muhamad ◽  
Radin Maya Saphira Radin Mohamed ◽  
Norshuhaila Mohamed Sunar ◽  
Adel Al-Gheethi ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Biomass Yield ◽  
Biomass Productivity ◽  
Maximum Growth ◽  
Maximum Growth Rate ◽  
Aeration Rate ◽  
Composition Analysis ◽  
Wet Market ◽  
Central Composite

The present study aimed to optimize the production of Scenedesmus sp. biomass during the phycoremediation process. The biomass productivity was optimized using face centred central composite design (FCCCD) in response surface methodology (RSM) as a function of two independent variables that included wet market wastewater concentrations (A) with a range of 10% to 75% and aeration rate (B) with a range of 0.02 to 4.0 L/min. The results revealed that the highest biomass productivity (73 mg/L/d) and maximum growth rate (1.19 day−1) was achieved with the 64.26% of (A) and 3.08 L/min of (B). The GC-MS composition analysis of the biomass yield extract revealed that the major compounds are hexadecane (25%), glaucine (16.2%), and phytol (8.33%). The presence of these compounds suggests that WMW has the potential to be used as a production medium for Scenedesmus sp. Biomass, which has several applications in the pharmaceutical and chemical industry.

Application of response surface methodology for optimization of growth and lipids in Scenedesmus abundans using batch culture system

RSC Advances ◽  
2014 ◽  
Vol 4 (42) ◽  
pp. 22129-22140 ◽  
Author(s):  
Chelladurai Chellamboli ◽  
Muthiah Perumalsamy
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Batch Culture ◽  
Culture System ◽  
Fossil Fuels ◽  
Biofuel Production ◽  
Alternative Source ◽  
System P

Owing to an increased demand for fuel and the depletion of fossil fuels, an alternative source such as algae is currently being exploited for biofuel production.

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