Abstract:
:The adsorption of copper ions on magnetic adsorbents with amino-functionalized polymers (DETA/SiO2/Fe3O4) has been investigated. In addition, the structure and characterization of magnetic nano-adsorbents were confirmed using FTIR, TGA, TEM, VSM, and BET. The results showed that DETA/SiO2/Fe3O4 exhibited a paramagnetic behaviour and could be easily recovered and quickly separated from a suspension solution. The optimum pH level for adsorption of copper ions was proposed to be in the range of pH level from 5 to 6, and the maximum adsorption capacity (qm ) and activated energy (Ea ) at 298 K was 13.459 mg g-1 and 22.421 kJ mol-1, respectively. The copper ions adsorption behaviour by DETA/SiO2/Fe3O4 was in good agreement with the Langmuir isotherm rather than Freundlich equation. A pseudo-second-order model could best describe the adsorption kinetics, and the optimal condition of copper ions desorption (99%) from DETA/SiO2/Fe3O4 was provided by 1.0 M HNO3. The novel magnetic nano-adsorbents could not only be regenerated by HNO3 solutions but also reused by the recovery of magnetic force without requiring further downstream treatment.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Chen HW,Chang SHdoi
10.1080/09593330.2020.1805027subject
Has Abstractpub_date
2020-08-13 00:00:00pages
1-10eissn
0959-3330issn
1479-487Xpub_type
杂志文章abstract::Completely autotrophic nitrogen removal over nitrite (CANON) process was an innovative technology for nitrogen removal from wastewater. It is necessary to clear the impact of CuO nanoparticles (CuO NPs) on CANON process since the widespread utilize increased their opportunity for entering into wastewater. In this stud...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1360399
更新日期:2018-10-01 00:00:00
abstract::Ce/TiO2-SiO2 catalysts with different Ti/Si molar ratios are prepared by the incipient impregnation method and their NH3-SCR activities are evaluated at 100-500°C on a fixed reactor. The Ce/TiO2-SiO2 (3/1) catalyst, modified by non-thermal plasma (NTP) treatment and then activated by thermal treatment at 500°C for 4 h...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1337237
更新日期:2018-07-01 00:00:00
abstract::Polychlorinated biphenyls (PCBs) are carcinogenic to humans and can be found in fuller's earth used for the treatment of used transformer oil. This work describes an optimization of the Fenton process for the removal of contaminants from fuller's earth. The effects of pH (2.5 and 4.0), [H2O2] (1.47 and 2.07 mol L-1), ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1420699
更新日期:2019-04-01 00:00:00
abstract::The structure and physicochemical characteristics of weathered surfaces of marble in industrial environments can be attributed to the interconnected evolution of the processes taking place at the atmospheric environment--marble interface. The present work is an attempt to correlate the aerosols of a heavily polluted a...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332208618236
更新日期:2001-06-01 00:00:00
abstract::To recover oil from crude oil containing sludge is still a research hot topic from the view of sustainability, in which ultrasonic has been proven to be an efficient and environment friendly technique. However, the effect of sludge characteristic on ultrasonic-assisted oil recovery efficiency is little known. In this ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1422553
更新日期:2019-04-01 00:00:00
abstract::Incinerators do not achieve a complete mineralization of organic constituents of municipal solid waste. Bottom ash (main solid residue from incineration process) still contains a small quantity of carbon (1 to 5% in weight). This study is about characterisation of the carboned fraction (without carbonates) present in ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330309385637
更新日期:2003-08-01 00:00:00
abstract::The acclimation of aerobic-activated sludge for degradation of benzene derivatives was investigated in batch experiments. Phenol, benzoic acid, toluene, aniline and chlorobenzene were concurrently added to five different bioreactors which contained the aerobic-activated sludge. After the acclimation process ended, the...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.938127
更新日期:2015-01-01 00:00:00
abstract::Currently, CO2 emission is the main cause of climate change and its various related environmental impacts. Therefore, we have as a prime the development of clean sources of energy. The hydrogen economy is very attractive in this regard, however, when generated from the methane reform, there are also large-scale CO2 em...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2020.1758218
更新日期:2020-05-04 00:00:00
abstract::Silver impregnated activated carbon (SIAC) can effectively remove iodide from water and sequester it in the form of AgI(s)). Given the extremely insoluble nature of AgI(s), the spent SIAC can be safely disposed of in land burial facilities. However, when the molar ratio of silver to iodide is greater than one, which i...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332608618595
更新日期:2005-11-01 00:00:00
abstract::In this work, the dehalogenation and degradation of halogenated benzenes (chlorobenzenes, bromobenzene) under electron beam radiation were investigated. Several factors affected the degradation of halogenated benzenes by the electron beam radiation method, such as the dose of the electron beam, the initial pH value of...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330802468954
更新日期:2009-02-01 00:00:00
abstract::Contaminations by Staphylococcus aureus in food industry environments have been extended to industrial Effluent Treatment Plant (ETP). The methodologies used in ETP for bacterial removals and quality parameters adjustment commonly use products toxic to the environment, being mostly inefficient against virulent bacteri...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2020.1754923
更新日期:2020-04-24 00:00:00
abstract::Depositional and flow patterns are first described to gain an understanding of the erosion patterns during hydraulic flushing in a reservoir. Considering the importance of this issue, two modes of flushing operation for control of sedimentation were performed in several experiments with different reservoir geometries....
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330902990162
更新日期:2009-07-01 00:00:00
abstract::This paper presented the influence of Al(III) on biodegradability, micromorphology, composition and functional groups characteristics of the biofilm extracellular polymeric substances (EPS) during different growth phases. The sequencing batch biofilm reactors were developed to cultivate biofilms under different Al(III...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1378268
更新日期:2019-01-01 00:00:00
abstract::Cocoa bean skin is a waste of chocolate industries that mostly contains hemicellulose, cellulose, and lignin. This material shows to be a promising feedstock for the production of liquid smoke and charcoal. The study was aimed to analyse the influence of temperature and heating rate of cocoa bean skin pyrolysis to the...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1520306
更新日期:2020-03-01 00:00:00
abstract::Gasification is one of the most important thermochemical routes to produce both synthesis gas (syngas) and chars. The quality of produced syngas wieldy depends on the operating conditions (temperature, residence time, heating rate, and gasifying agent), hydrodynamic properties of gasifier (particle size, minimum fluid...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1406538
更新日期:2019-02-01 00:00:00
abstract::This work focused in the evaluation of Oreochromis niloticus fish scales (FS) as biosorbent material in the removal of Zn from a synthetic effluent based on automotive battery industry effluent and, further, a hybrid neutralization/biosorption process, aiming at a high-quality treated effluent, by a cooperative use of...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1441332
更新日期:2019-07-01 00:00:00
abstract::Current concern over the potentially negative impacts of climate change has brought attention to anthropogenic sources of methane, a primary greenhouse gas. Two such emission sources are methane leakage at heavy oil wells and sanitary landfills. At both of these sources, substantial quantities of methane could potenti...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332208618315
更新日期:2001-01-01 00:00:00
abstract::This study reports the comparative removal of an emerging contaminant diclofenac sodium (DCF) by UV-254 nm-based advanced oxidation processes (AOPs), i.e. UV/S2O82-/Fe2+, UV/HSO5-/Fe2+ and UV/H2O2/Fe2+ processes. The results demonstrated that by applying [DCF]0 = 0.30 mM and [H2O2]0 = [S2O82-]0 = [HSO5-]0 = 3 mM, kapp...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2020.1770869
更新日期:2020-05-28 00:00:00
abstract::We examined the biodegradation of varying amounts of artificially weathered Alaskan North Slope crude oil in laboratory microcosm test systems that use natural seawater and simulate spills in open water and on sandy beaches. The model bioremediation treatment consisted of periodic applications of marine bacteria, sele...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330309385672
更新日期:2003-10-01 00:00:00
abstract::A two-stage biological aerated/anoxic filter (BAF) system for denitrification-nitrification was developed to increase nitrogen removal in the treatment of municipal wastewater with low carbon:nitrogen (C/N) ratio [Formula: see text]. This system exhibited a high denitrification efficiency (67%), despite the low C/N ra...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.971886
更新日期:2015-03-01 00:00:00
abstract::The removal of antibiotics in biological wastewater treatment plants (WWTPs) has attracted an ever-increasing interest. Extracellular polymeric substances (EPS) play a crucial role in antibiotics' bio-adsorption using activated sludge, but the interaction mechanism between antibiotics and EPS remains unclear. In this ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1426635
更新日期:2019-05-01 00:00:00
abstract::This work presents the results obtained in the treatment of industrial pulp mill wastewater (black liquor) with the white-rot fungus Trametes versicolor immobilised in nylon and polyurethane foam cubes. Reductions in colour (36%), aromatic compounds (54%) and toxicity (3.15 times reduction of the initial value) were o...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332708618702
更新日期:2006-08-01 00:00:00
abstract::The usefulness of the electrical resistivity method for characterization of contaminated sites has been studied in many ways. The most commonly used device is a cone penetrometer that utilizes two or four electrodes to measure electrical resistivity (or conductivity) during a cone penetration test (CPT) along a vertic...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332808618819
更新日期:2007-06-01 00:00:00
abstract::The goal of this research is to find a more effective treatment for tequila vinasses (TVs) with potential industrial application in order to comply with the Mexican environmental regulations. TVs are characterized by their high content of solids, high values of biochemical oxygen demand (BODs), chemical oxygen demand ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.882960
更新日期:2014-08-01 00:00:00
abstract::A three phase (aqueous/solid/gas) mixed weak acid/base kinetic model developed by Musvoto et al. is applied to simulate the physical and chemical processes that occur on aeration of anaerobic digester liquors. Included in the model are the kinetic reactions for (i) weak acid/base dissocations (water, carbonate, ammoni...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332208618189
更新日期:2001-11-01 00:00:00
abstract::Ozone and its reactants are the main factors of air pollution in cabin environment, their distribution and propagation were influenced by different air supply modes in the cabin. Based the B767 aircraft cabin mode, a computational fluid dynamics (CFD) model of aircraft cabin had been built to study the distribution of...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2019.1600044
更新日期:2020-10-01 00:00:00
abstract::The aim of this study was to contribute to the knowledge on the dynamic of the microbial community involved in anaerobic degradation of different concentrations of 2-chlorophenol (2CP, from 28 to 196 mg 2CP-C/L) and a mixture of 2CP and phenol (from 28 to 196 mg phenol-C/L) and its relationship with the respiratory pr...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2015.1010595
更新日期:2015-07-01 00:00:00
abstract::The high concentration of heavy metals in solid wastes may cause serious pollution during thermal treatment. We have investigated, theoretically and experimentally, the effects of several important flue gas species and mineral sorbents on the partitioning behaviour of four major heavy metals (cadmium, lead, zinc and c...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.963693
更新日期:2015-01-01 00:00:00
abstract::Sample pretreatment process is usually performed before real sample detection. Extraction is one of the most prevalent pretreatment methods. Due to the unequal solubility in two liquid phases, target is extracted (usually from water to organic phase) and further detected with laboratory instruments. Although the analy...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2019.1680741
更新日期:2019-10-29 00:00:00
abstract::This study was conducted to develop a two-stage process for the treatment of Hong Kong leachate. The leachate, containing 4750 mg l-1 of chemical oxygen demand (COD) and 1310 mg l-1 of ammoniacal nitrogen (NH3-N), was first treated in a UASB (upflow anaerobic sludge blanket) reactor at 37 degrees C. The process remove...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332208618266
更新日期:2001-04-01 00:00:00