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Waste - Europe PMC

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Last Updated: 27 September 2022

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Novel multifunctional papers based on chemical modified cellulose fibers derived from waste bagasse

The failure of poor uniformity and stability was present in the majority of industries that produce multifunctional papers. Firstly, the acetoacetyl groups were tied by a heterogeneous transesterification of bagasse cellulose fibers on the surface of bagasse cellulose fibers. The fluorophore and gentamicin sulfate were bonded in-situ to the paper by Hantzsch's reaction and the presence of an enamine bonded respectively, according to Hantzsch. In addition, relatively modest surface modification has no effect on fibers and results in the same whiteness and stiffness characteristics as those of the CAA paper, in addition.

Source link: https://europepmc.org/article/MED/IND607900076


Thermally stable cellulose nanospheres prepared from office waste paper by complete removal of hydrolyzed sulfate groups

Cellulose nanocrystals are often obtained by acid hydrolysis, particularly in Hu2082SOu2084. This paper produced thermally stable and sulfate-group-free cellulose nanospheres from office waste paper by H2084 hydrolysis followed by solvolytic desulfation. From 186 to 340 °C, the desulfated CNSs had a significant thermal stability increase. u00b0C Comprehensive analysis of the morphology, chemical composition, and thermal behavior of the desulfated CNSs revealed complete removal of sulfate groups without harmful pyridine residues, revealing the possibility of using the thermally stable CNSs.

Source link: https://europepmc.org/article/MED/IND607900073


Effect of purple sugarcane peel extracts on properties of films based on lemon peel waste pectin and the application in the visible detection of food freshness

For the first time, the effect of purple sugarcane peel anthocyanin extracts on film based on lemon peel waste pectin was investigated in this study. PSPAEs have excellent compatibility with the LPP matrix, and the LPP/PSPAEs composite film demonstrated a higher ultraviolet light barrier capacity. The incorporation of PSPAEs significantly improved the physical characteristics of LPP films demonstrated by improved mechanical stability and thermal stability, which may be due to the more compact structure seen by scanning electron microscope images and potential intermolecular interaction such as hydrogen bond interactions between film components shown by Fourier transform infrared spectra and X-ray diffraction analysis. The results showed that LPP films had good texture on LPP films, and that the LPP/PSPAEs composite film is a promising biodegradable film that can be used for intelligent detection of food freshness.

Source link: https://europepmc.org/article/MED/IND607837670


Effect of plant waste addition as exogenous nutrients on microbial remediation of petroleum-contaminated soil

PURPOSE: This research investigates the possibility of bio-enhanced microbial remediation of petroleum-contaminated soil and assesses the effect of various plant wastes as exogenous stimulants, in order to guide soil remediation in long-serving soils with nutrient-poor soils. The most effective exogenous additive and investigating the improvement mechanism of plant wastes in the area were found through indoor simulation experiments, as well as soil chemical and microbiological characteristics, soil microbial community structure, and soil microbial community structure, among other things in the region were thoroughly reviewed to find the most effective exogenous additive and exploring the root mechanism of plant wastes on microbial remediation of petroleum-contaminated soil. CONCLUSIONS: Soybean straw can be added to the contaminated soil as the ideal exogenous organic nutrient system, improving the soil's physicochemical characteristics and providing a healthy living environment for indigenous microorganisms in the petroleum-contaminated soil and fueling their expansion and expansion, as well as new city metabolic activities, laying the foundation for more effective, eco friendly, low-cost microbial enhanced remediation technologies.

Source link: https://europepmc.org/article/MED/IND607804458


An operative laboratory investigation of bioconversion route from waste coal to natural energy

PURPOSE: The possibility of reactivated consortium for the methane production using waste coal as a carbon source in the modified media at mesophilic temperature was discovered in the new study. OH and aliphatic groups, which majorly belong to alkane, alkene, and phenol derivative compounds, were detected in untreated coal, as a key peak in microbial treated coal, with no C peak present in microbial treated coal. CONCLUSIONS: Waste coal production is one of the most difficult and common mining industry's most labor-intensive operations. Hence, the production of biogenic methane from waste coal is an environmentally friendly way to solve this problem.

Source link: https://europepmc.org/article/MED/IND607705297


Hydrogen production by organic waste chemical looping gasification (OW-CLG) enhanced by V2O3 catalysed reforming via partial oxidation approach

With straw stalk and concentrated distillery wastewater as feedstock, we recommend the organic waste chemical looping gasification scheme for hydrogen production. With 1 g corn stalk and a 20 ml ethanol model solution, the best Hu2082 yield is 2. 05 l with 1 g corn stalk and 20 ml ethanol model solution. The corn stalk OW-CLG is an endothermic process with a total endothermic temperature of 5. 396 kJ/mol. During OW-CLG, the reaction of VC and CO2082 is more than 950 K. By Vu2082O'u2083, the temperature range for partial oxidation of CH2084 to hydrogen is above 950 K.

Source link: https://europepmc.org/article/MED/IND607913843


Influence of mixing waste tobacco stalks and paper mulberry wood chips on the physico-mechanical properties, formaldehyde emission, and termite resistance of particleboard

According to PNS ISO 16893, tobacco stalks and paper mulberry wood chips could be used alone or in mixed quantities to produce commercial particleboard that could meet the requirement for general purpose particleboards suitable in dry conditions. Adjustments in manufacturing conditions may be needed to pass the WA, TS, MOR, and MOE regulations for use in high tropical humid environments. At a 75:25 ratio, mixing tobacco stalks and paper mulberry wood chips produced a low FE particleboard with improved DWT resistance.

Source link: https://europepmc.org/article/MED/IND607874723


Towards biodiesel sustainability: Waste sweet potato leaves as a green heterogeneous catalyst for biodiesel production using microalgal oil and waste cooking oil

Biodiesel production from inexpensive and readily available feedstocks using agriculture waste as catalysts is a success strategy in making biodiesel more competitive. According to subsequently, a green heterogeneous catalyst derived from the waste sweet potato leaves was synthesized and used for biodiesel production using Scenedesmus obliquus oil and waste soybean cooking oil.

Source link: https://europepmc.org/article/MED/IND607874708

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions