Effects of palm oil mill effluent media on cell growth and lipid content ofNannochloropsis oculataandTetraselmis suecica

2014 ◽  
Vol 13 (2) ◽  
pp. 200-207 ◽  
Author(s):  
S. M. U. Shah ◽  
A. Ahmad ◽  
M. F. Othman ◽  
M. A. Abdullah
JOM ◽  
2017 ◽  
Vol 69 (8) ◽  
pp. 1361-1367 ◽  
Author(s):  
Hesam Kamyab ◽  
Shreeshivadasan Chelliapan ◽  
Reza Shahbazian-Yassar ◽  
Mohd Fadhil Md Din ◽  
Tayebeh Khademi ◽  
...  

Fermentation ◽  
2022 ◽  
Vol 8 (1) ◽  
pp. 23
Author(s):  
Karthick Murugan Palanisamy ◽  
Gaanty Pragas Maniam ◽  
Ahmad Ziad Sulaiman ◽  
Mohd Hasbi Ab. Rahim ◽  
Natanamurugaraj Govindan ◽  
...  

Biomass and lipid production by the marine centric diatom Thalassiosira pseudonana were characterized in media based on palm oil mill effluent (POME) as a source of key nutrients. The optimal medium comprised 20% by volume POME, 80 µM Na2SiO3, and 35 g NaCl L−1 in water at pH ~7.7. In 15-day batch cultures (16:8 h/h light–dark cycle; 200 µmol photons m−2 s−1, 26 ± 1 °C) bubbled continuously with air mixed with CO2 (2.5% by vol), the peak concentration of dry biomass was 869 ± 14 mg L−1 corresponding to a productivity of ~58 mg L−1 day−1. The neutral lipid content of the biomass was 46.2 ± 1.1% by dry weight. The main components of the esterified lipids were palmitoleic acid methyl ester (31.6% w/w) and myristic acid methyl ester (16.8% w/w). The final biomass concentration and the lipid content were affected by the light–dark cycle. Continuous (24 h light) illumination at the above-specified irradiance reduced biomass productivity to ~54 mg L−1 day−1 and lipid content to 38.1%.


2020 ◽  
Vol 7 (2) ◽  
pp. 95
Author(s):  
Shinta Elystia ◽  
Indah Kartika Zulfa ◽  
Sri Rezeki Muria

Palm oil mill effluent contains pollutants and has high content of organic matter. The treatment process of palm oil mill effluent generally with open pond system that requires extensive land and a long contact time. To reduce the number of ponds needed in the process of palm oil mill effluent, microalgae Chlorella sp. by using palm mill effluent which contains organic material as a source of nutrition for microalgae cultivation media Chlorella sp. to improve the efficiency of COD removal in palm oil mill effluent. In this research, variations of the concentration of Fe and Co micronutrients were combined with variations concentrations of Fe (0.3; 0.5 and 0.7) mg/L and Co (1 and 2) mg/L in flat-photobioreactors were carried out for 7 days with lighting by using sunlight. The results showed that at a combination of 0.5 mg/L Fe + 0.2 mg/L Co, the highest microalgae cell growth was 6 x 106 cell/ml and the highest removal efficiency of COD was 83.3%.


2017 ◽  
pp. 45-64
Author(s):  
Noor Amirah Abdul Aziz ◽  
Shreeshivadasan Chelliapan ◽  
Mohanadoss Ponraj ◽  
Mohd Badruddin Mohd Yusof ◽  
Mohd. Fadhil Md Din

Membranes ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 566
Author(s):  
Ruwaida Abdul Wahid ◽  
Wei Lun Ang ◽  
Abdul Wahab Mohammad ◽  
Daniel James Johnson ◽  
Nidal Hilal

Fertilizer-drawn forward osmosis (FDFO) is a potential alternative to recover and reuse water and nutrients from agricultural wastewater, such as palm oil mill effluent that consists of 95% water and is rich in nutrients. This study investigated the potential of commercial fertilizers as draw solution (DS) in FDFO to treat anaerobic palm oil mill effluent (An-POME). The process parameters affecting FO were studied and optimized, which were then applied to fertilizer selection based on FO performance and fouling propensity. Six commonly used fertilizers were screened and assessed in terms of pure water flux (Jw) and reverse salt flux (JS). Ammonium sulfate ((NH4)2SO4), mono-ammonium phosphate (MAP), and potassium chloride (KCl) were further evaluated with An-POME. MAP showed the best performance against An-POME, with a high average water flux, low flux decline, the highest performance ratio (PR), and highest water recovery of 5.9% for a 4-h operation. In a 24-h fouling run, the average flux decline and water recovered were 84% and 15%, respectively. Both hydraulic flushing and osmotic backwashing cleaning were able to effectively restore the water flux. The results demonstrated that FDFO using commercial fertilizers has the potential for the treatment of An-POME for water recovery. Nevertheless, further investigation is needed to address challenges such as JS and the dilution factor of DS for direct use of fertigation.


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