Persulfate oxidation assisted hydrochar production from Platanus Orientalis Leaves: Physiochemical and combustion characteristics

Methylene Blue Removal by Activated Carbon from Platanus Orientalis Leaves

“…Gu et al, prepared hydro char from platanus orientalis leaves by combination of persulfate oxidation and hydrothermal treatment. As reported in the study, energy yield increased noticeably (Gu et al, 2017). Active carbon fabrication was reported as another application of POL.…”

Speciation of Nutrients in Hydrochar Produced from Hydrothermal Carbonization of Poultry Litter under Different Treatment Conditions

“…A graduated decrease in the nutrient contents with the acidity was observed when using H 2 SO 4 ; Ca, Mg, and Na contents decreased from 105.1 to 62.8, 31.7 to 15.2, and 1.2 to 0.8 mg g –1 , respectively. This could be due to the role of SO 4 – in decomposition of organic matter and making the measured nutrients more accessible to conversion . Although a low concentration of CH 3 COOH (pH 9 and 7) had little influence on the nutrient contents of the HCs, an obvious decrease was observed at higher concentration (pH 4); Ca, Mg, and Na contents decreased with the acidity from 122.2 to 94.3, 29.3 to 13.8, and 1.0 to 0.8 mg g –1 , respectively.…”

“…There is a growing interest in nutrient recovery from biowaste such as manures, and thermal processing has been proposed as a step to facilitate that, presenting an opportunity to mitigate several environmental issues in a single approach. A number of studies have demonstrated that thermal conversion processes such as pyrolysis, gasification, and hydrothermal carbonization may offer appropriate techniques for treating biomass/biowaste, producing a more stable product and enriching the product significantly with respect to P. , Among the disposal alternatives, hydrothermal carbonization (HTC) is considered to be a very effective thermal treatment for high moisture biowaste and could become a promising strategy to control the nutrients loss problem. , HTC is a thermal conversion process performed in water at moderate temperatures (180–260 °C) under self-generated pressure with residence times from a few minutes to several hours. − HTC of PL gives rise to a solid carbon-rich hydrochar (HC) which can be used to recycle nutrients back into agricultural soil, along with aqueous and gaseous products. , The chemical and physical properties of the HC produced are highly dependent on the process conditions such as treatment temperature, residence time, and initial pH. , Manipulation of the treatment process condition is a major variable to produce suitable products as it can streamline the HC properties for a variety of uses. − On this basis, it is important to understand the effects of the treatment conditions on the chemical and physical properties of the HC, particularly the immobilization and nutrient release from PL during processing …”

Beech Leaves Briquettes as Fuel for a Home Combustion Unit

“… Zone II: temperature ranges 195-310°C and 310-380°C (hemicellulose and cellulose decomposition, respectively) especially corresponds with those of literature sources [1], [20], [22] where the decomposition of hemicellulose was not overlapped with cellulose decomposition.  Zone III: temperature range 380-610°C (lignin decomposition) corresponds with that of literature sources [1], [20], [21] according to the starting temperature of decomposition. Temperature range 610-770°C corresponds with the removal of inorganic matter [22].…”