Barley straw, an agricultural waste, was chemically modified and evaluated for the removal of emulsified oils from aqueous solution. The chemical modification was performed using NaOH and a cationic surfactant, hexadecylpyridinium chloride monohydrate (CPC). The surface textural and chemical properties of the surfactant modified barley straw (BMBS) were characterized by N(2) adsorption, FT-IR, SEM and water soluble mineral content. The adsorption tests were carried out in batch adsorption system for removal of standard mineral oil (SMO) and canola oil (CO) from water. For both emulsified oils in wastewater, adsorption was found to be strongly related with solution pH. The isotherm study indicated that emulsified oil adsorption on BMBS could be fitted well with the Langmuir model other than Freundlich model. The maximum adsorption capacity for CO and SMO at 25 degrees C determined from the Langmuir isotherm is 613.3 and 584.2 mg g(-1), respectively. Desorption tests in water solution show that oil is strongly bonded with adsorbent and desorption is only about 1-2% in 24 h.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.biortech.2009.06.070 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Conversion of Lignocellulosic Biomass Into Valuable Feed for Ruminants Using White Rot Fungi.
J Anim Physiol Anim Nutr (Berl)
January 2025
Department of Animal Science, Wageningen University & Research, Wageningen, The Netherlands.
White rot fungi can degrade lignin and improve the nutritional value of highly lignified biomass for ruminants. We screened for excellent fungi-biomass combinations by investigating the improvement of digestibility of wheat straw, barley straw, oat straw, rapeseed straw, miscanthus, new reed, spent reed from thatched roofs, and cocoa shells after colonisation by Ceriporiopsis subvermispora (CS), Lentinula edodes (LE), and Pleurotus eryngii (PE) (indicated by increased in vitro gas production [IVGP]). First, growth was evaluated for three fungi on all types of biomass, over a period of 17 days in race tubes.
View Article and Find Full Text PDFThe influence of active metabolites from the decomposition of camelina and barley straw on the development of phytoplankton from eutrophic freshwater ecosystem.
Sci Rep
January 2025
Department of Landscape Architecture, Poznań University of Life Sciences, 159 Dąbrowskiego Street, Poznań, 60-594, Poland.
As a result of human activities, surface waters worldwide are experiencing increasing levels of eutrophication, leading to more frequent occurrences of microalgae, including harmful algal blooms. We aimed to investigate the impact of decomposing camelina straw on mixed phytoplankton communities from eutrophic water bodies, comparing it to the effects of barley straw. The research was carried out in 15 aquaria (five of each type - containing no straw, camelina straw, and barley straw).
View Article and Find Full Text PDFRearing mealworm larvae with wheat, barley or maize grains as main source of nutrients in unbalanced or balanced substrates.
Animal
November 2024
Departamento de Producción Animal y Ciencia de los Alimentos, Instituto Agroalimentario de Aragón (IA2), Universidad de Zaragoza-CITA, M. Servet 177, 50013 Zaragoza, Spain. Electronic address:
Feeding conditions of mealworm (T. molitor) larvae for livestock nutrition need to be optimised. The effects of the cereal offered as main nutrient source on growth performance and composition of T.
View Article and Find Full Text PDFUse of by-products from the industrial distillation of lavandin (Lavandula x intermedia) essential oil as effective bioherbicides.
J Environ Manage
January 2025
Recognised Research Group AGROBIOTECH, UIC-370 (JCyL), Department of Plant Production and Forest Resources, Higher Technical School of Agricultural Engineering of Palencia, University Institute for Research in Sustainable Forest Management (iuFOR), University of Valladolid, Avda. Madrid 57, 34004, Palencia, Spain. Electronic address:
Weeds are one of the main problems causing losses in agricultural crops, which are nowadays mainly combated by the massive use of chemical herbicides. The development of new effective, sustainable, environmentally and health-friendly bioherbicides is a fundamental need worldwide. In this work, hydrolates and lavandin distilled straws produced during the distillation of the essential oil of lavandin (Lavandula x intermedia) were tested as potential bioherbicides.
View Article and Find Full Text PDFProduction of Succinic Acid by Metabolically Engineered from Lignocellulosic Hydrolysate Derived from Barley Straw.
J Microbiol Biotechnol
December 2024
Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Republic of Korea.
Article Synopsis
- Succinic acid is important for food additives, dietary supplements, and biodegradable polymers, and its production has gained interest due to environmental and economic factors.
- The study improved succinic acid production from lignocellulosic biomass by genetically modifying strains to overexpress specific genes, leading to a 1.3-fold increase in production.
- Fed-batch fermentation produced 50 g/l of succinic acid, and batch fermentation from barley straw yielded 22.2 g/l, suggesting that using agricultural waste for succinic acid production could be a sustainable industrial approach.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!