The sustainability of Jatropha biodiesel production in Southwest China

Zhang, Zhihan; Zhu, Mingyi; Wang, Zanxin

doi:10.1016/j.spc.2023.02.020

Cited by 11 publications

(4 citation statements)

References 32 publications

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“…Reduction in fuel reserves and rising environmental issues have increased the attention of researchers toward alternative fuels in place of conventional fuels. , To protect the environment, the search for green fuels to replace fossil fuels is necessary. , Biodiesel (the most attractive biofuel type) is the most potential alternative fuel for conventional diesel engines . Biodiesel can be used as a green fuel in engines in pure form or mixed with diesel in different ratios in compression combustion engines. , Transesterification of pure triglycerides, which are mainly found in expensive feedstocks such as vegetable oils, has been one of the most useful and widely used methods to produce biodiesel based on free fatty acids. − In recent years, many countries have emphasized and encouraged the use of alternative green fuels such as biodiesel fuel by governmental pathways by means of both incentives and prescriptive volumetric necessities . Biodiesel has been generally regarded as the most promising alternative fuel in comparison to petroleum-based diesel owing to its nontoxic, − sulfur-free, and biodegradable .…”

Section: Introductionmentioning

confidence: 99%

“… 23 Biodiesel can be used as a green fuel in engines in pure form or mixed with diesel in different ratios in compression combustion engines. 24 , 25 Transesterification of pure triglycerides, which are mainly found in expensive feedstocks such as vegetable oils, has been one of the most useful and widely used methods to produce biodiesel based on free fatty acids. 26 − 30 In recent years, many countries have emphasized and encouraged the use of alternative green fuels such as biodiesel fuel by governmental pathways by means of both incentives and prescriptive volumetric necessities.…”

Section: Introductionmentioning

confidence: 99%

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Simple Synthesis of Novel Cr-EDTA-MOF: A Green, Reusable, and Versatile Catalyst for the Production of Biodiesel Fuel from Oleic Acid and Palmitic Acid

Jafari,

Ghorbani-Choghamarani,

Aghavandi

2024

ACS Omega

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Herein, we reported an efficient and novel metal−organic framework (MOF) that was designed and fabricated via hydrothermal reaction of chromium(III) nitrate nonahydrate salt with EDTA as an organic ligand. The prepared MOF was investigated by PXRD, BET, SEM, EDS, FT-IR, and X-ray mapping techniques. N 2 adsorption−desorption isotherms indicated excellent BET surface area for Cr-EDTA-MOF, which is 234.55 m 2 /g. The prepared Cr-EDTA-MOF exhibits efficient and potential performance for the esterification of oleic and palmitic acids under gentle reaction conditions. Furthermore, this nanostructure material afforded several benefits, including excellent product yields, stability, easy methodology, easy workup, and greener situations. Furthermore, this heterogeneous nanocatalyst (Cr-EDTA-MOF) could be easily recovered from the reaction mixture by centrifugation and reused for four consecutive runs with a minimum loss of catalytic activity.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simple Synthesis of Novel Cr-EDTA-MOF: A Green, Reusable, and Versatile Catalyst for the Production of Biodiesel Fuel from Oleic Acid and Palmitic Acid

Jafari,

Ghorbani-Choghamarani,

Aghavandi

2024

ACS Omega

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“…Recirculating aquaculture systems (RAS) have the potential to reduce the ecological impact of fish farming by reducing water usage and minimizing waste discharge in the environment [1, 2]. These systems allow inland fish production and reach average water recirculation rates of more than 95% per day [3].…”

Section: Introductionmentioning

confidence: 99%

Optimizing alkalinity control in Recirculating Aquaculture Systems (RAS): a dynamic modelling approach

Montjourides,

Roblitz,

Dahle

2024

Preprint

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Maintaining good water quality is essential for successful fish production in land-based recirculating aquaculture systems (RAS). Numerous interdependent factors influence water quality parameters, making it difficult to evaluate which operational strategies are most favorable. Mathematical models and model simulations have proven to be powerful tools to evaluate how RAS design and operation are linked to RAS dynamics, but these models rarely implement pH and carbonate species as dynamic variables. Here, we present a dynamic model for RAS (dynRAS) that combines rates of TAN (total ammonia nitrogen) removal, fish growth, and CO2 and TAN excretion, with a reaction model for pH and the carbonate system formulated based on the law of mass action. A novel aspect of our approach is the incorporation of a dosage system modelled by a Hill-function, enabling the exploration of diverse dosing strategies for pH and alkalinity management. The model was validated based on empirical data from a pilot scale RAS system operated with a feeding regime involving 12 hours of feeding per day. We found that model simulations could be used to accurately predict diurnal cycling patterns in RAS water quality parameters. Furthermore, we made use of simulations to assess how diurnal cycling varies with changing pH and alkalinity levels. Model results emphasize the complexity of pH and alkalinity control in RAS in relation to overall water quality management. Based on our simulations, we argue that what should be considered as optimal pH and alkalinity in RAS depends on the state of the system. Accordingly, optimal pH and alkalinity thresholds may vary between different RAS units and between different time points of a rearing cycle. More generally, we demonstrate how modelling and model simulations can be an effective way of getting insights into the dynamics of complex RAS interactions and provide a valuable tool to efficiently explore effects of different operational strategies on water quality parameters.

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“…Providing valuable grown fish species with highquality feed that can meet their nutritional needs and optimize growth is an important prerequisite for increasing productivity and the economic efficiency of fish farms and reducing production costs (Zhang et al 2023). The costs associated with aquaculture are the most expensive component of production.…”

Section: Introductionmentioning

confidence: 99%

Effect of a Probiotic Preparation Based on Lactic and Propionic Acid Bacteria on the Growth of Young Rainbow Trout Oncorhynchus Mykiss in Aquaculture

2023

Int J Vet Sci

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Providing valuable fish species in aquaculture with high-quality feed is the main factor in reducing production costs and increasing the economic efficiency of fish farms. The costs associated with feed are the most expensive component of fish production. The main task of commercial trout farming is the cultivation of fish in the shortest possible time and with minimal costs. This paper investigates the effect of probiotic supplements based on lactic acid bacteria Lacticaseibacillus paracasei Wf-2, Limosilactobacillus pontis Wf-6, Lacticaseibacillus casei Wf-10, and Lacticaseibacillus paracasei Wf-20 and propionic acid bacteria Propionibacterium freudenreichii P-8 on the growth rates of young rainbow trout in aquaculture. The values of the indicators of cheap trout feed with the introduced probiotic supplement differed slightly, and their properties were not inferior to those of expensive feed. A significant reduction in the content of biogenic substances in the variant with a probiotic supplement was shown. The results of the study indicate the high efficiency and prospects of the use of probiotic preparations in the fattening of young trout in aquaculture.

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The sustainability of Jatropha biodiesel production in Southwest China

Cited by 11 publications

References 32 publications

Simple Synthesis of Novel Cr-EDTA-MOF: A Green, Reusable, and Versatile Catalyst for the Production of Biodiesel Fuel from Oleic Acid and Palmitic Acid

Simple Synthesis of Novel Cr-EDTA-MOF: A Green, Reusable, and Versatile Catalyst for the Production of Biodiesel Fuel from Oleic Acid and Palmitic Acid

Optimizing alkalinity control in Recirculating Aquaculture Systems (RAS): a dynamic modelling approach

Effect of a Probiotic Preparation Based on Lactic and Propionic Acid Bacteria on the Growth of Young Rainbow Trout Oncorhynchus Mykiss in Aquaculture

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