Utilization of Modified Elephas maximus Dung as Oxyfluorfen Sequestrant: Adsorption and Kinetic Modeling Studies | Chapter 13 | Novel Aspects on Chemistry and Biochemistry Vol. 1

 This stage aims to focus on sequestration of Oxyfluorfen from liquid media engaging Elephas maximus dung (EMD), a natant biowaste, infrequently reported abroad. Attention is sought on Oxyfluorfen, one of ultimate employed herbicides for ruling the growth of annual broadleaf and grassy weeds. Oxyfluorfen is top-secret as low severe toxicity compound by the World Health Organization (WHO) and by the Environmental Protection Agency (EPA).  However, appropriate conclusion of redundant Elephas maximus excrement (EMD) is critical for environmental protection through exercise of resources. The experiment is start in batch mode accompanying various functional elements such as piece size, beginning Oxyfluorfen concentration, MEMD dosage, contact opportunity, pH, and temperature.  The results, that were evaluated using isothermal and energetic models, suggest that the Langmuir isotherm and Pseudo II Order energetic model suit the data well, with the maximum amount of oxyfluorfen expulsion of 88.9%.  It has been driven that Elephas maximus dung (EMD) powder has the highest potential for the detachment of Oxyfluorfen, hence upholding an alternative environmentally benign procedure, established the derived notes, supported by theoretical judgments.

Author(s) Details:

N. Muthulakshmi Andal,
Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore-641004, Tamil Nadu, India.

G. Preethi,
Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore-641004, Tamil Nadu, India.

Please see the link here: https://stm.bookpi.org/NACB-V1/article/view/10503

 This phase aims to focus on sequestration of Oxyfluorfen from liquid media engaging Elephas maximus dung (EMD), a natant biowaste, infrequently reported somewhere. Attention is sought on Oxyfluorfen, one of ultimate employed herbicides for ruling the growth of annual broadleaf and grassy weeds. Oxyfluorfen is top-secret as low severe toxicity compound by the World Health Organization (WHO) and by the Environmental Protection Agency (EPA).  However, appropriate disposition of redundant Elephas maximus excrement (EMD) is critical for environmental protection through exercise of resources. The experiment is start in batch mode accompanying various functional elements such as atom size, primary Oxyfluorfen concentration, MEMD dosage, contact opportunity, pH, and temperature.  The results, that were evaluated using isothermal and energetic models, suggest that the Langmuir isotherm and Pseudo II Order energetic model suit the data well, with the maximum amount of oxyfluorfen eradication of 88.9%.  It has been driven that Elephas maximus dung (EMD) powder has the highest potential for the preoccupation of Oxyfluorfen, hence advocating an alternative environmentally benign procedure, established the derived remarks, supported by theoretical estimates.

Author(s) Details:

N. Muthulakshmi Andal,
Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore-641004, Tamil Nadu, India.

G. Preethi,
Department of Chemistry, PSGR Krishnammal College for Women, Coimbatore-641004, Tamil Nadu, India.

Please see the link here: https://stm.bookpi.org/NACB-V1/article/view/10503

Kinetics of Methane Production from Co-digestion of Agricultural Wastes | Chapter 4 | Current Strategies in Biotechnology and Bioresource Technology Vol. 2

Anaerobic digestion (AD) is widely used for treatment of organic waste for biogas production. Codigestion of agricultural wastes with various substrate combinations is one of the ways to increase and stabilize biogas yield. The influence of co-substrates on kinetics of methane production in anaerobic fermentation of pig and manure slurry was studied by performing a series of laboratory experiments using food waste, biowaste and winemaking waste as co-substrates. Experiments were performed in the laboratory reactors of «Hohenheim» biogas testing system in batch mode at the temperature of 37ºC. Methane production rate was used to evaluate co-digestion of agricultural slurry. Research results showed that co-substrates gave significant effect to methane production kinetics. The kinetic parameters of methane production i.e. potential yield of methane (P), maximum methane yield rate (Rm) and duration of lag-phase (λ) were analyzed using modified Gompertz equation. Technical time to produce 95% of potential methane yield was investigated and efficient period of anaerobic digestion was calculated. The potential production of methane was reached in lag-phase duration (λ) of about 10-15 days. Maximal methane production rate was reduced 2-3 times in codigestion than in mono-digestion of pig and cattle manure during anaerobic digestion for 35 days. 

Author (s) Details

Karlygash Korazbekova
Department of Chemistry, Biology and Geography, Y. Altynsarin Arkalyk State Pedagogical Institute Arkalyk, Kazakhstan.

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