Potential improvement of biogas production from fallen teak leaves with co-digestion of microalgae

Wannapokin, Anongnart; Ramaraj, Rameshprabu; Whangchai, Kanda; Unpaprom, Yuwalee

doi:10.1007/s13205-018-1084-7

Cited by 40 publications

(19 citation statements)

References 46 publications

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“…Bringing pig manure to cultivate fly worms to serve as a substitute for high-priced protein food sources pig manure can be fermented through biogas because biogas is the main component of methane (Ramaraj and Unpaprom, 2016;Unpaprom et al, 2020). Therefore, it has good ignition properties and can be used as renewable energy in various forms, such as burning to utilize direct heat (Wannapokin et al, 2018). Burned for heating and used to drive machinery such as for heating and to generate electricity.…”

Section: Discussionmentioning

confidence: 99%

Replacement of fish meal using pig manure as protein source for Nile tilapia culture

Tongmee

Whangchai

Tongsiri

et al. 2020

Maejo Int. J. Energ. Environ. Comm. or MIJEEC

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The cost of fish feed is a significant constraint to freshwater fish farming in Asia. In the aquaculture value chain, feed is a responsible factor and accounts for nearly 75% of the total cost of fish production in many countries. Therefore, this study attempts to focus the feasibility of using pig manure fermentation to formulate feed pellets to culture the tilapia fish in the cement pond, along with the cultured using ready-made feed containing the residue from the manure fermentation at different ratios. Accordingly, the experimental studies were approached by two types of experiments, namely, experiment 1 (focused on the nutrients in pig manure collected from an anaerobic system farm), and experiment 2 (studied the appropriate level of pig manure to be used as a raw material for fish feeding). The five months’ fermentation of pig manure contains 17.09% protein, which is the highest amount of nutrition source. Digestate manure was estimated; other primary macronutrients, including nitrogen, phosphorus, and potassium, were 2.73, 0.55 and 1.22 %, respectively. Also, a considerable amount of essential micronutrients, for example, copper, manganese and zinc, were found in the digestate. Nile tilapia were grown at the cement ponds for 120 days. The maximum verified dry matter and protein digestibility in tilapia were attained for diets containing 10 % percent pig manure at 89.28 ± 4.09 and 56.64 ± 1.43 (p> 0.05), respectively. In this study experimental results indicated that fish meal consisting of 15% manure was found to be the most acceptable substitute source of protein for tilapia production. This implies that the cost of fish meal production using fermented pig manure can be significantly lowered, gain higher profit and provide significant economic benefits to farmers.

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Section: Discussionmentioning

confidence: 99%

Replacement of fish meal using pig manure as protein source for Nile tilapia culture

Tongmee

Whangchai

Tongsiri

et al. 2020

Maejo Int. J. Energ. Environ. Comm. or MIJEEC

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“…The results proved that the co-digestion of material always give more potential for producing due to the abundance of nutrients in the substrate helps microorganisms thrive more smoothly. Moreover, available components in feedstock after NaOH pretreatment more chance to present the significant improvement on biodegradability [14,15]. Hence, could explain the reason why biogas production of NaOH-treated common reed was greatly increased.…”

Section: Ts and Vs Reductionmentioning

confidence: 99%

Effects of Co-substrate Concentrations on the Anaerobic Co-Digestion of Common Reed and Cow Dung

Tran

Unpaprom

Ramaraj

2019

ajarcde

Self Cite

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The biochemical methane potentials for common reed (Phragmites australis) and cow dung from northern Thailand, Chiang Mai city were investigated. This study aims to evaluate optimal parameters for the substrate of common reed and cow dung with different ratios (i.e. 1:1, 2:1 and 1:2) for improving the quality of methane content and biogas production. The effect of the co-substrate mixture was carried out in a batch reactor operated under room temperature and hydraulic retention time (HRT) of 45 days. The experiments were conducted in the fermenter with a working volume of 2.5 L and a total volume of 3L. The substrate was containing 15% of total solids (TS) and fermentation at initial pH 7. Biodegradation of substrate stated that chemical oxidation demand (COD) removal was 52.38%, the utilization of volatile solid was 75.46%. The results were achieved at ratio 2:1 (common reed and cow dung) reached the highest methane content and total biogas yield are 70% and 20,015 ml, respectively. Consequently, the results of this study suggested that mixing ratios of influence on the fermentation process and monitoring parameters were significant for further scale up or large-scale design of enriched methane content and biogas production.

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“…It is proved that the microalgae play a significant part in self-purification of natural waters and therefore recommend an alternative means as a tertiary treatment of organic wastewater (Tsai et al, 2015). Although POME is a waste and can cause a big pollution, but in the same time it has its own value added products such as carotenoid which utilize for vitamin A and vitamin E, citric acid, fertilizer, biodiesel and hydrolytic enzymes (Wannapokin et al, 2018). Furthermore, POME was identified as a potential source to generate renewable bioenergy's such as biomethane and biohydrogen through anaerobic digestion.…”

Section: Bodmentioning

confidence: 99%

Culturing of green photosynthetic microalgae (Chlorella sp.) using palm oil mill effluent (POME) for future biodiesel production

Nithin

Bhuyar²,

Trejo

et al. 2020

Maejo Int. J. Energ. Environ. Comm. or MIJEEC

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Nowadays, the water pollution is leading issue due to palm oil mill effluent (POME), waste from palm oil production is a big problem to Malaysia which is largest palm oil producers. POME containing large amount of chemical oxygen demand (COD) which can cause severe pollution to the environment especially water. This present study designed for culturing green algae (Chlorella sp.) isolated from Pantai Balok, Kuantan which is most common microalgae with palm oil mill effluent (POME). Chlorella sp. was cultured using BG-11 medium with the addition of POME as experiment and without POME as control. The POME responsible for the growth of green algae is studied by measurement of the growth rate, total cell count and chemical oxygen demand (COD) for both conditions. The composition for control and experiment is also measured and determined by using Gas Chromatography Mass Spectrometry (GCMS). From the results, it is observed that the total cell count and growth rate of Chlorella sp. greater in presence of POME since the green microalgae absorbs the essential nutrients from the POME as their nutrients. GCMS revealed that the difference in composition for both the conditions. Results concluded that several COD also vigorously deplete with the help of green algae digestion. Cultivation of Chlorella sp. in POME will help in future water pollution treatment.

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Potential improvement of biogas production from fallen teak leaves with co-digestion of microalgae

Cited by 40 publications

References 46 publications

Replacement of fish meal using pig manure as protein source for Nile tilapia culture

Replacement of fish meal using pig manure as protein source for Nile tilapia culture

Effects of Co-substrate Concentrations on the Anaerobic Co-Digestion of Common Reed and Cow Dung

Culturing of green photosynthetic microalgae (Chlorella sp.) using palm oil mill effluent (POME) for future biodiesel production

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