Synergistic effect of ultrasonic and microwave pretreatment on improved biohydrogen generation from palm oil mill effluent

2021 ◽  
Author(s):  
Puranjan Mishra ◽  
Zularisam ab Wahid ◽  
Lakhveer Singh ◽  
Rubaiyi M. Zaid ◽  
Shabana Tabassum ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Palm Oil ◽  
Palm Oil Mill Effluent ◽  
Microwave Pretreatment ◽  
Palm Oil Mill

Synergistic effect of anaerobic co-digestion of palm oil mill effluent (POME) with Moringa oleifera extract

2021 ◽  
Vol 144 ◽  
pp. 105885
Author(s):  
Cheau Chin Yap ◽  
Soh Kheang Loh ◽  
Yi Jing Chan ◽  
Christina Vimala Supramaniam ◽  
Mei Fong Chong ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Palm Oil ◽  
Moringa Oleifera ◽  
Palm Oil Mill Effluent ◽  
Palm Oil Mill

scholarly journals Biochemical Methane Potential of Palm Oil Mill Effluent (POME) Co-Digested with Rubber Latex Effluent (LTE): Effect of POME/LTE Ratio and Temperature

2020 ◽  
Vol 17 (12) ◽  
pp. 1321-1334
Author(s):  
Nattawut YINGTHAVORN ◽  
Laddawan NOYNOO ◽  
Tammathat BOONKAMNERD ◽  
Nirattisai RAKMAK ◽  
Chairat SIRIPATANA
Keyword(s):  
Synergistic Effect ◽  
Palm Oil ◽  
Power Plants ◽  
Palm Oil Mill Effluent ◽  
Methane Yield ◽  
Biochemical Methane Potential ◽  
Rubber Latex ◽  
Good Opportunity ◽  
Methane Potential ◽  
Palm Oil Mill

Single anaerobic digestion of rubber latex effluent (LTE) is known to be difficult and low yield which produces biogas containing high sulfur dioxide and ammonia. This article investigates the potential of co-digestion of palm oil mill effluent (POME) and LTE both in terms of synergistic, inhibitory effects and process stability particularly in inferring what would happen in an industrial-scale biogas plant if this type of co-digestion is to be used. The article focuses on the biochemical methane potential (BMP) of POME-LTE at different mixing ratio within the temperature range of 30 - 45 °C, the range which is used in most commercial biogas power plants in Thailand. It was found that proper co-digestion between POME and LTE provided a good opportunity to optimize the bio-methane yield because of their synergistic effect. All mixing ratios provided stable biogas production up to at least 45 days. Co-digestion of POME and LTE had a synergistic effect that when mixing 80 - 90 % of POME with 10 - 20 % of LTE, it enhanced the BMP by 25 - 35 %. It is also recommended that, in mesophilic range, 45 °C would be the best for both methane yield and high methane content in the biogas. We also have illustrated that 2-substrate models (in this case the Gompertz 2 substrate (GTS) model) is very suitable for representing and describing co-digestion data because of their inherently multiple substrate tendency. In most cases, Gompertz-type equations for single substrate did not represent the accumulated biogas/methane data adequately.

scholarly journals Evaluating Fertilizer-Drawn Forward Osmosis Performance in Treating Anaerobic Palm Oil Mill Effluent

Membranes ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 566
Author(s):  
Ruwaida Abdul Wahid ◽  
Wei Lun Ang ◽  
Abdul Wahab Mohammad ◽  
Daniel James Johnson ◽  
Nidal Hilal
Keyword(s):  
Palm Oil ◽  
Pure Water ◽  
Water Flux ◽  
Forward Osmosis ◽  
Salt Flux ◽  
Palm Oil Mill Effluent ◽  
Performance Ratio ◽  
Water Recovery ◽  
Flux Decline ◽  
Palm Oil Mill

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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