| Title | Production of rhododendron and marigold waste derived biochar: a sustainable innovation to reduce environmental stress |
|---|---|
| ID_Doc | 21932 |
| Authors | Titikshya, S; Sahoo, M; Tyagi, I; Naik, SN; Kumar, V |
| Title | Production of rhododendron and marigold waste derived biochar: a sustainable innovation to reduce environmental stress |
| Year | 2024 |
| Published | |
| Abstract | An enormous amount of floral waste is generated from various religious places and cultural events, which is either gathered or ended up in the water bodies that cause menace for the environment and human health. Therefore, alternative steps have been introduced to convert these wastes into valuable resources and create a circular economy in close loop system for environmental management and establishment of zero waste approach. In this study, the floral wastes especially marigold and rhododendron (after the pigment extraction) were utilized for the production of biochar through slow pyrolysis at 400 degrees C, 500 degrees C and 600 degrees C for 60 min of pyrolysis time. The pyrolysis temperature for this process was decided by estimating the thermal behaviour of the residues through thermogravimetric analysis. After completion of the pyrolysis processes, the physicochemical analysis of the rhododendron residue derived biochar (RRB), marigold residue derived biochar (MRB) and marigold husk derived biochar (MHB) was investigated by proximate, ultimate and different instrumental analysis like XRD, SEM, FTIR and BET studies. By investigating the biochar yields and physicochemical assessments, biochar obtained at 600 degrees C possessed better quality for further applications. Moreover, it was observed that among all the biochar samples, RRB has the highest specific surface area of 412.00 m2 g- 1 as compared to MRB (6.21 m2 g- 1) and MHB (17.09 m2 g- 1). The outcome of this research validated that the biochar possesses high surface area (especially RRB) and porosity with surface functional groups that can be utilized in the wastewater remediation like degradation of dyes and accumulation of heavy metals from wastewater. Biochar from depigmented rhododendron and marigold floral wastes was explored.Temperature influenced the morphological and structural attributes of biochar.Biochar yield of MRB, MHB and RRB are 37.68%, 35.25%, 34.54%, respectively.RRB found to have the highest specific surface area of 412 m2 g- 1.Derived biochar proved to be an excellent potential for wastewater treatment. |
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