An overview of biomass waste utilization

2022 ◽  
pp. 1-23
Author(s):  
Arif Darmawan ◽  
Muhammad Aziz
2021 ◽  
Vol 46 ◽  
pp. 101288
Author(s):  
Hamza Mumtaz ◽  
M. Farhan ◽  
M. Amjad ◽  
Fahid Riaz ◽  
Ali H. Kazim ◽  
...  

2021 ◽  
Vol 16 (1) ◽  
pp. 188-195
Author(s):  
Argo Khoirul Anas ◽  
Sandy Yudha Pratama ◽  
Aqidatul Izzah ◽  
Muhammad Arsyik Kurniawan

Biochar is an interesting adsorbent material due to its use is correlated with biomass waste utilization and also minimize environmental pollution from high amount of biomass by-product. Regarding to improve the biochar ability in water treatment, several surface modifications have been developed, one of them is modification using surfactant. In this study, sodium dodecylbenzene sulfonate (SDBS) was used to modify the surface of biochar prepared from pyrolysis of cassava peels (Manihot utilissima). Its performance in biochar modification to remove methylene blue (MB) dyes was compared with sodium dodecyl sulphate (SDS) surfactant for observing the important of – interactions mechanisms. The analysis of biochar and biochar-SDBS were conducted by using Fourier transform infrared (FTIR), CHNS elemental analysis, and scanning electron microscope (SEM). Furthermore, the adsorption experiments were conducted using UV-Vis spectrophotometer. It is known that modification using SDBS could increase the adsorption capacity of biochar not only from electrostatic interaction but also through – interactions mechanisms. In this respect, as the amount of SDBS mass increased, the adsorption capacity was also improved due to the modification produced more active cites on biochar. The maximum MB adsorption onto biochar-SDBS occurred at adsorbent mass of 15 mg with optimum pH value of 10. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 


Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2430
Author(s):  
Roberta Del Sole ◽  
Giuseppe Mele ◽  
Ermelinda Bloise ◽  
Lucia Mergola

Molecular Imprinting Polymer (MIP) technology is a technique to design artificial receptors with a predetermined selectivity and specificity for a given analyte, which can be used as ideal materials in various application fields. In the last decades, MIP technology has gained much attention from the scientific world as summarized in several reviews with this topic. Furthermore, green synthesis in chemistry is nowadays one of the essential aspects to be taken into consideration in the development of novel products. In accordance with this feature, the MIP community more recently devoted considerable research and development efforts on eco-friendly processes. Among other materials, biomass waste, which is a big environmental problem because most of it is discarded, can represent a potential sustainable alternative source in green synthesis, which can be addressed to the production of high-value carbon-based materials with different applications. This review aims to focus and explore in detail the recent progress in the use of biomass waste for imprinted polymers preparation. Specifically, different types of biomass waste in MIP preparation will be exploited: chitosan, cellulose, activated carbon, carbon dots, cyclodextrins, and waste extracts, describing the approaches used in the synthesis of MIPs combined with biomass waste derivatives.


Processes ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 659
Author(s):  
Mohamad Shazeli Che Zain ◽  
Soo Yee Lee ◽  
Chian Ying Teo ◽  
Khozirah Shaari

Oil palm leaves (OPL) containing flavonoid C-glycosides are abundantly generated as oil palm byproducts. The performances of three macroporous resins with different physical and chemical properties for the enrichment of isoorientin, orientin, vitexin, and isovitexin from acid-hydrolyzed OPL (OPLAH) extract were screened. The XAD7HP resin exhibited the best sorption capacities for the targeted flavonoid C-glycosides and was thus selected for further evaluation. Static adsorption using the XAD7HP resin under optimal conditions (extract adjusted to pH 5, shaken at 298 K for 24 h) gave adsorption kinetics that fit well with a pseudo-second-order kinetic model. The adsorption of isoorientin and orientin was well described by Langmuir isotherms, while vitexin and isovitexin fit well with the Freundlich isotherms. Dynamic sorption trials using the column-packed XAD7HP resin produced 55–60-fold enrichment of isovitexin and between 11 and 25-fold enrichment of isoorientin, vitexin, and orientin using aqueous ethanol. The total flavonoid C-glycoside-enriched fractions (enriched OPLAH) with isoorientin (247.28–284.18 µg/mg), orientin (104.88–136.19 µg/mg), vitexin (1197.61–1726.11 µg/mg), and isovitexin (13.03–14.61 µg/mg) showed excellent antioxidant free radical scavenging activities compared with their crude extracts, with IC50 values of 6.90–70.63 µg/mL and 44.58–200.00 µg/mL, respectively. Hence, this rapid and efficient procedure for the preliminary enrichment of flavonoid C-glycosides by using macroporous resin may have practical value in OPL biomass waste utilization programs to produce high value-added products, particularly in the nutraceuticals, cosmeceuticals, pharmaceuticals, and fine chemicals industries.


2018 ◽  
Vol 1 (02) ◽  
Author(s):  
Anggia Cahyaningtyas

Kegiatan pengabdian pada masyarakat merupakan salah satu cara supaya mahasiswa Universitas Trilogi memiliki keterampilan bermasyarakat. Khalayak  sasaran  dari  pengabdian  ini  adalah  masyarakat RW 09 di  desa Ciasihan. Kegiatan pengabdian  telah  dilaksanakan  pada  tanggal  11 Agustus-11 September yang  bertempat  di desa Ciasihan Kecamatan Pamijahan Kabupaten Bogor, dengan diikuti oleh seluruh masyarakat RW 09. Dari  hasil  evaluasi  diperoleh  hasil  dan  manfaat  dari  kegiatan  pengabdian  ini diantaranya adalah meningkatkan motivasi masyarakat akan pentingnya koperasi, dan pentingnya akan pemanfaatan sampah organik  menjadi pupuk. Kegiatan pengabdian  ini  berjalan  dengan  lancar,  karena  berbagai  pendukung  terutama  partisipasi peserta yang cukup antusias dan berpartisipasi aktif dalam kegiatan pembentukan koperasi.. Tujuan  kegiatan  pengabdian  kepada  masyarakat  ini,  yang  dilaksanakan melalui kegiatan pembentukan koperasi adalah memotivasi masyarakat akan pentingnya koperasi, dan pentingnya akan pemanfaatan sampah organik  menjadi pupuk. Selain itu, Pengabdian Pada Masyarakat ini merupakan wahana bagi mahasiswa Universitas Trilogi untuk mengabdikan keilmuannya.Kata Kunci: Pembentukan Koperasi, Masyarakat RW 09Community service activities are one way for Trilogy University students to have social skills. The target audience of this service is the community of RW 09 in Ciasihan village. Community service activities were carried out on 11 August-11 September in Ciasihan Village, Pamijahan District, Bogor Regency, followed by all RW 09 people. From the results of the evaluation, the results and benefits of this service were obtained, including increasing community motivation for the importance of cooperatives, and the importance of using organic waste into fertilizer. This service activity went smoothly, due to various supporters, especially the participation of enthusiastic participants and actively participating in cooperative formation activities. The purpose of this community service activity, which was carried out through cooperative formation activities was to motivate the community on the importance of cooperatives, and the importance of waste utilization. organic into fertilizer. In addition, Community Service is a vehicle for Trilogy University students to devote their knowledge.Keywords: Formation of Cooperatives, Community RW 09


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