Abstract:
:The adsorption of divalent metal ions Cu2+, Pb2+, Zn2+, and Cd2+ on coffee grounds as a function of coffee grounds concentration was studied in which adsorption density decreased as the concentration of coffee grounds (C(s)) increased. Adsorption studies were conducted by equilibrating aqueous solutions of each metal ion at concentrations in the range 19-291 micromol L(-1) with coffee suspensions in the concentration range 0.971-8.738 g L(-1), with the initial pH adjusted to 5.0+/-0.1 using NaOH or HNO3. Metastable Equilibrium Adsorption theory did not adequately explain the adsorption phenomenon, except at low concentrations of coffee grounds and trace metal ions. Instead the results indicated that flocculation might reduce the surface availability thus reducing the adsorption density. The flocculation theory was confirmed after a further experiment adding dispersant sodium hexa-meta-phosphate (NaHMP) to the suspension.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Utomo HD,Hunter KAdoi
10.1016/j.biortech.2009.06.094subject
Has Abstractpub_date
2010-03-01 00:00:00pages
1482-6issue
5eissn
0960-8524issn
1873-2976pii
S0960-8524(09)00779-2journal_volume
101pub_type
杂志文章abstract::The effect of pile mixing on greenhouse gas (GHG) emissions during dairy manure composting was determined using large flux chambers designed to completely cover replicate pilot-scale compost piles. GHG emissions from compost piles that were mixed four times during the 80 day trial were approximately 20% higher than em...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.10.142
更新日期:2011-02-01 00:00:00
abstract::The microbiological and physicochemical characterization of samples from the different wastewaters generated during oil extraction in a continuous olive mill was performed. The main aim was to determine which of the physicochemical parameters were the best fitted to correctly characterize these residual waters. High c...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2007.12.058
更新日期:2008-10-01 00:00:00
abstract::Microalgae have been suggested as a promising feedstock for producing biofuel because of their potential for lipid production. In this study, microalgal photobioreactor systems under mixotrophic conditions were investigated, for the purpose of developing a mathematical model that predicts biomass and lipid production....
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2014.03.128
更新日期:2014-06-01 00:00:00
abstract::Extracellular polymeric substances (EPSs), produced by Dunaliella salina strain, increase concomitantly with salt concentration and maximum (944 mg/l) were obtained at 5M NaCl, whereas minimum (56 mg/l) at 0.5M salinity. Emulsifying activity was measured in terms of strength to retain the emulsion and comparatively 85...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2009.02.006
更新日期:2009-07-01 00:00:00
abstract::The Cladophora glomerata (C. glomerata) is a kind of widely distributed macroalgae in the freshwater ecosystems. It primarily consists of carbohydrates that can be converted into biofuel by pyrolysis. In this study, thermogravimetric analysis (TGA) was used to investigate the thermal behavior and kinetics of C. glomer...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2017.06.041
更新日期:2017-11-01 00:00:00
abstract::To identify the key bacterial populations in hydrogen fermentation of galactose, a fermentor seeded with a heat-treated sludge was operated. After 27h of fermentation, the proportion of butyric acid increased to 69.4wt.% and the gas production yield reached 1.0molH2/molgalactose. In the pyrosequencing of 16S rDNA, an ...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2014.01.081
更新日期:2014-04-01 00:00:00
abstract::The effects of different concentrations of copper sulfate on the growth of and the accumulation of Cu2+ by root, hypocotyl, cotyledon and leaf growth of sunflower (Helianthus annuus L.) were examined in this study. The concentrations of copper sulfate (CuSO4 x 5H2O) used were in the range from 10(-5) to 10(-3) M. Seed...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/s0960-8524(02)00152-9
更新日期:2003-01-01 00:00:00
abstract::This study investigated sulfamethoxazole (SMX) removal and fate in sulfate-reducing up-flow sludge bed (SRUSB) reactors inoculated with sulfate-reducing bacteria (SRB) granules and flocs. The resilience of SRB granules and flocs against varying pHs and hydraulic retention times (HRTs) was also examined. SRB granules a...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.121592
更新日期:2019-09-01 00:00:00
abstract::This work develops an alternative gas transfer calculation method to the two methods currently used in anaerobic digestion modelling. The current calculation methods are problematic because one is computationally stiff, while the other introduces an artificial overpressure. The new approach began by noting that the ga...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.07.025
更新日期:2010-12-01 00:00:00
abstract::The adaptive response of the fungus Blakeslea trispora to the oxidative stress induced by elevated dissolved oxygen concentrations during carotene production was investigated by measuring the specific activities of catalase (CAT) and superoxide dismutase (SOD) and the micromorphology of the fungus using a computerized...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2011.06.027
更新日期:2011-09-01 00:00:00
abstract::Effects of operation parameters on hydrogen production rate, substrate utilization efficiency and hydrogen bioconversion yield were investigated in a photobioreactor packed with sodium alginate/polyvinyl alcohol-124/carrageenan granules containing Rhodopseudomonas palustris CQK 01. Results demonstrate that an increase...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.01.045
更新日期:2010-06-01 00:00:00
abstract::Application of microbial fuel cell (MFC) is coming to the forefront as a dual-purpose system for wastewater treatment and energy recovery. Future research should emphasize on developing low-cost field-scale MFCs for removal of organic matter, nutrients, xenobiotic and recalcitrant compounds from wastewaters and poweri...
journal_title:Bioresource technology
pub_type: 杂志文章,评审
doi:10.1016/j.biortech.2020.123587
更新日期:2020-09-01 00:00:00
abstract::Activated carbon powders made from coconut husk (CHCs) were prepared by one-step rapid pyrolysis activation process. Effects of temperature, oxygen and steam on the pore structure of CHCs were investigated. Results showed that high temperature, oxygen and steam all motivated the development of the CHCs pore structure....
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2020.123413
更新日期:2020-08-01 00:00:00
abstract::Recovery of bioactive compounds, such as proteolytic enzymes, from waste streams is a means to both recuperate value and reduce environmental pollution. Previously optimized lab-scale parameters for the recovery of a stable crude protease fraction from Pacific whiting (Merluccius productus) surimi wash water were test...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/s0960-8524(01)00178-x
更新日期:2002-05-01 00:00:00
abstract::An intra-cellular beta-glucosidase was purified to homogeneity by gel filtration, ion exchange chromatography and HPGPLC from mycelial extract of Termitomyces clypeatus in the presence of the glycosylation inhibitor 2-deoxy-d-glucose. CD spectroscopy demonstrated that the purified enzyme exhibited alpha-helical confor...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2009.11.064
更新日期:2010-04-01 00:00:00
abstract::The aim of this study was to investigate the performance of horizontal subsurface flow constructed wetlands planted with Typha latifolia treating tannery wastewater under long-term operation. Two expanded clay aggregates (Filtralite MR3-8-FMR and Filtralite NR3-8-FNR) and a fine gravel-FG were used as substrate for th...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2008.01.043
更新日期:2008-10-01 00:00:00
abstract::The hydrogenation of biodiesel was investigated in presence of thermoregulated phase-transfer catalysts to produce fatty alcohols. The thermoregulated catalytic system Pd/IV (IV: P-ligand, tri-(methoxyl polyethylene glycol)-phosphite) exhibited an efficient catalytic performance for the hydrogenation. It was also foun...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.03.016
更新日期:2010-08-01 00:00:00
abstract::Converting animal manure into value-added products provides a potential alternative for treatment and disposal of such materials. Lignocellulosics are a major component of animal manure and represent an undeveloped bioresource. In this work, a process was developed for hydrolyzing manure lignocellulosics into fermenta...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/s0960-8524(03)00166-4
更新日期:2004-01-01 00:00:00
abstract::To prepare fermentable hydrolysate from corncob residue (CCR), Trichoderma strain G26 was cultured on medium containing CCR for production of cellulolytic enzymes through solid-state fermentation (SSF), resulting in 71.3 IU/g (FPA), 136.2 IU/g (CMCase), 85.1 IU/g (β-glucosidase) and 11,344 IU/g (xylanase), respectivel...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2015.06.101
更新日期:2015-10-01 00:00:00
abstract::This study investigated the greenhouse gas emission characteristics and microbial community dynamics with the variation of temperature during partial nitrification. Low temperature weakened nitrite accumulation, and partial nitrification would shift to complete nitrification easily at 15 °C. Based on CO2 equivalents (...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2018.03.137
更新日期:2018-08-01 00:00:00
abstract::There are about 130,000 hectares of land in South Africa that have been under black wattle plantation for a long time and whose soils have become more acidic than those from contiguous land without the tree. This incubation study investigated the effectiveness of lime, chicken manure and leaf litter ash to ameliorate ...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/s0960-8524(02)00065-2
更新日期:2002-10-01 00:00:00
abstract::Granular activated carbon (GAC) has been shown to mediate direct interspecies electron transfer (DIET) in anaerobic digestion. Adding GAC to up-flow anaerobic sludge bed reactor increased the total biomass slightly from 20.0 to 26.6 gVSS/reactor, and maximum organic removal capacity remarkably from 285 to 1660 mgCOD/L...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2019.122534
更新日期:2020-02-01 00:00:00
abstract::Cellulase production by two filamentous fungi Trichoderma reesei RUT-C30 and novel fungal strain, Aspergillus saccharolyticus on pretreated corn stover was investigated. Cellulase production was followed by the hydrolysis of two feedstocks, wet-exploded corn stover (WECS) and wet-exploded loblolly pine (WELP) by on-si...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2013.12.059
更新日期:2014-02-01 00:00:00
abstract::This study is focused on hydrocarbon production through changing carrier gas and using zeolite catalysts during pyrolysis. A large reduction in high molecular weight, oxygenated compounds was noticed when the carrier gas was changed from helium to hydrogen during pyrolysis. A catalytic pyrolysis was conducted using tw...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2011.03.104
更新日期:2011-06-01 00:00:00
abstract::Two types of pure cellulose, Avicel PH-101 and Whatman filter paper, were treated with an acid-chlorite delignification procedure in the presence of varying amounts of incorporated lignin, and the molecular weight distributions and degrees of polymerization (DP) of derivatized cellulose were determined by gel permeati...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.04.029
更新日期:2010-10-01 00:00:00
abstract::Understanding of how anaerobic digestion (AD)-related microbiomes are constructed by operational parameters or their interactions within the biochemical process is limited. Using high-throughput sequencing and molecular ecological network analysis, this study shows the succession of AD-related microbiome hosting diver...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2018.04.083
更新日期:2018-08-01 00:00:00
abstract::In this work, ammonia (NH3) torrefaction pretreatment (ATP) was developed to optimize the nitrogen and oxygen element distribution of microalgae via the N-doping and oxygen removal reaction, which could obviously improve the potential use of microalgae as a feedstock for the production of N-heterocyclic chemicals thro...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2020.124461
更新日期:2021-02-01 00:00:00
abstract::In order to prepare a genuine biodiesel, it is essential to use methanol prepared from biomass but not natural gas for biodiesel production. Thus, we have proposed to use crude bio-methanol produced by wood gasification for biodiesel production. Since such a bio-methanol contains some impurities, an effect of its impu...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2007.09.056
更新日期:2008-07-01 00:00:00
abstract::Biomass productivity and fatty acid methyl esters (FAME) derived from intracellular lipid of a Nannochloropsis sp. isolated from Singapore's coastal waters were studied under different light wavelengths and intensities. Nannochloropsis sp., was grown in both phototrophic and mixotrophic (glycerol as the carbon source)...
journal_title:Bioresource technology
pub_type: 杂志文章
doi:10.1016/j.biortech.2010.11.102
更新日期:2011-02-01 00:00:00
abstract::It has been well documented that the yeasts isolated from different marine environments are so versatile that they can produce various fine chemicals, enzymes, bioactive substances, single cell protein and nanoparticles. Many genes related to the biosynthesis and regulation of these functional biomolecules have been c...
journal_title:Bioresource technology
pub_type: 杂志文章,评审
doi:10.1016/j.biortech.2015.12.039
更新日期:2016-02-01 00:00:00