Abstract:
:Ultraviolet (UV) technologies have been very successful in disinfection applications due to their ability to inactivate microorganisms without producing harmful disinfection by-products. However, there have been a number of concerns associated with the use of conventional UV systems such as hazardous mercury content, high capital investment and reduced electrical efficiency. These concerns have set limitations for the use of UV processes. The study evaluates the development of light emitting diode (LED) technology as an alternative UV source over the last 5 years, analyses the projections provided by the researchers and UV LED manufacturers and presents the information in a cost model with the aim to predict the timeline at which UV LED will compete with traditional UV low pressure high output technology in the commercial market at full-scale residential and industrial disinfection applications.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Ibrahim MA,MacAdam J,Autin O,Jefferson Bdoi
10.1080/09593330.2013.829858subject
Has Abstractpub_date
2014-01-01 00:00:00pages
400-6issue
1-4eissn
0959-3330issn
1479-487Xjournal_volume
35pub_type
杂志文章abstract::Changes in the number and species diversity of cultivable microorganisms in a newly developed plate-type biofilter during filtration of various volatile pollutants were studied. The novelty of the investigation is the monitoring of microorganism succession in different parts of biofilter plates with original packing m...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.965227
更新日期:2015-03-01 00:00:00
abstract::Heterogeneous electro-Fenton mineralization of Acid Red 18 (AR18) in aqueous solution was studied with magnetite Fe3O4 (MNPs) and haematite Fe2O3 (HNPs) nanoparticles as catalysts. High mineralization yields of AR18 were obtained with magnetite, 81% TOC removal after 180 min of electrolysis in 40 mg L-1 Fe3O4, pH 3.0,...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1557258
更新日期:2020-06-01 00:00:00
abstract::In this study, Fe(VI) was applied to treat three mine tailings containing different amounts of sulphides and heavy metals. Oxidation of sulphides by Fe(VI) was studied at pH 9.2 with variation of solid to solution ratio, Fe(VI) concentration and injection number of Fe(VI) solution. The major dissolved products from th...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.943300
更新日期:2015-01-01 00:00:00
abstract::In this study, a bipolar membrane electrodialysis (BMED) process, which is thought to be an effective treatment method for leachate, was evaluated for leachates of three different ages ('young', 'middle-aged' and 'elderly'). The leachates were pretreated to eliminate membrane fouling problems prior to the BMED process...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2016.1276221
更新日期:2017-11-01 00:00:00
abstract::The adsorption of sulfadiazine from water by expanded graphite (EG), a low cost and environmental-friendly adsorbent, was investigated. Several adsorption parameters (including the initial sulfadiazine concentration, contact time, pH of solution, ionic strength and temperature) were studied. Results of equilibrium exp...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2016.1272637
更新日期:2017-10-01 00:00:00
abstract::This paper reviews published work on the sorption of rare earth elements by microbial biomass. In a first part, the biosorption capacities and the various experimental conditions performed in batch reactor experiments are compared. Secondly, sorption modelling generally used in biosorption studies are described. Third...
journal_title:Environmental technology
pub_type: 杂志文章,评审
doi:10.1080/09593330309385681
更新日期:2003-11-01 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::The textile industry can benefit from the use of microcapsules, both adding value to products through the production of technical or functional textiles and improving the processes in the production chain. Some applications have been widely explored in academic research, but many are not feasible for use in industrial...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1393017
更新日期:2019-01-01 00:00:00
abstract::This study presents the operation of a biotrickling filter when treating a monochlorobenzene (MCB) contaminated gaseous emission. Treatment dynamics were characterised by exposing the reactor to various MCB Organic Loads (OL). The use of different growth support materials, namely limestone, sand, ceramic and PVC pall-...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330309385699
更新日期:2003-12-01 00:00:00
abstract::The mineralisation of remazol black B (RBB) was studied at concentrations ranging from 20-1000 mgL(-1). The work was aimed at investigating the Fenton-like peroxidation of RBB at a concentration typically obtained in Batik cottage industries. Other response parameters were degradation and colour removal efficiencies. ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2011.610360
更新日期:2012-06-01 00:00:00
abstract::The composting of a faeces/ash mixture and food waste in relative proportions of 1:0, 1:1 and 1:3 was studied in three successive experiments conducted in Kampala, Uganda in 216 L reactors insulated with 75 mm styrofoam or not insulated. The faeces/ash mixture alone exceeded 50 degrees C for < or = 12 days in insulate...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330902788236
更新日期:2009-04-14 00:00:00
abstract::Phytoremediation is a cost-effective and eco-friendly process to remove heavy metals from water. A small-scale experiment was conducted to determine the phytoremediation efficiency of two macrophytes, i.e. Pistia stratiotes and Eichhornia crassipes for the removal of chromium and copper from the prepared metal solutio...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1540662
更新日期:2020-05-01 00:00:00
abstract::Herbal Pharmaceutical wastewater was subjected to physico-chemical treatment using conventional coagulants individually and in combination with different anionic, cationic and nonionic polyelectrolytes. Results indicate cationic polyelectrolyte to be the best polymer. Individually Alum did not give good results but Al...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332608618550
更新日期:2005-04-01 00:00:00
abstract::To understand the effect of forests and wetlands on air quality, the PM10 and PM2.5 concentration and meteorological data were collected in the forest and wetland in the Beijing Olympic Forest Park in China from May 2106 to May 2017. The blocking rates of forest and wetland to PMs were calculated under different air q...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1561759
更新日期:2020-07-01 00:00:00
abstract::Currently, municipal and industrial wastewater treatment plants (WWTPs) are mainly focusing on reduction of biological oxygen demand and on the removal of nutrients. However, there are microorganisms that interfere with the process. In this environment, there is a large diversity of microorganisms that have not been s...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1296897
更新日期:2018-01-01 00:00:00
abstract::This study investigated the effect of various intermittent aeration (IA) cycles on organics and nutrient removal, and microbial communities in an integrated fixed-film activated sludge (IFAS) reactor treating municipal waste water. Average effluent biological oxygen demand (BOD), chemical oxygen demand (COD), total su...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1281349
更新日期:2017-11-01 00:00:00
abstract::This paper deals with the use of gasoline-methanol and gasoline-ethanol mixtures in a small four-stroke engine of internal combustion that is used for the movement of a small alternative generator. It was observed that CO and HC emissions decrease compared to gasoline when the percentage of methanol, ethanol in the fu...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330309385647
更新日期:2003-09-01 00:00:00
abstract::Treatment of sewage sludge (SS) by biodegradable polyacrylamide-based flocculants (PAM) is considered to be an effective way to increase total solids' (TS) content prior to anaerobic digestion (AD). However, data on how PAM addition influences the efficiency of AD process are quite contradictory; moreover, no data are...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1417492
更新日期:2019-04-01 00:00:00
abstract::Standard experimental protocols for biodegrading petroleum hydrocarbons employ microbiological and/or analytical analysis, and require advanced machines and specialized professionals to carry them out. Furthermore, the obtained results involve a high margin of error. In this paper, a new experimental technique was dev...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332708618727
更新日期:2006-10-01 00:00:00
abstract::The destabilization of a microbial population is sometimes hard to solve when different biological reactions are coupled in the same reactor as in sequencing batch reactors (SBRs). This paper will try to guide through practical experiences the recovery of simultaneous nitrogen and phosphorus removal in an SBR after in...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330903464043
更新日期:2010-03-01 00:00:00
abstract::The emission of greenhouse gases, such as N2O, from wastewater treatment plants is a matter of growing concern. Denitrification by ammonia-oxidizing bacteria (AOB) has been identified as the main N2O producing pathway. To estimate N2O emissions during biological nitrogen removal, reliable mathematical models are essen...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2012.758666
更新日期:2013-05-01 00:00:00
abstract::A series of catalytic wet oxidation (CWO) reactions, at temperatures of 430-500 K and in a batch bench-top pressure vessel were carried out utilizing a strong wastewater composed of landfill leachate and heavily organic halogen polluted industrial wastewater. A CeO2-SiO2 mixed oxide catalyst with large surface area to...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332508618467
更新日期:2004-12-01 00:00:00
abstract::Phosphorus is the key element to remove from aquatic environments to limit the growth of aquatic plants and algae and, thus, to control eutrophication. Because the upflow sludge blanket filtratio' (USBF) process, without addition of metal salts, entails low efficiency for phosphorus removal, we added an anaerobic reac...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2010.504235
更新日期:2011-04-01 00:00:00
abstract::Extreme halophilic archaea are thriving and dominant populations within hypersaline environments. Because of the extreme properties of the enzymes of halophilic archaea and similar metabolic abilities to their bacterial counterparts, our interests focus on their potential biotechnological applications. In this study, ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593331003734210
更新日期:2010-07-01 00:00:00
abstract::Activated carbon was prepared from soybean dregs using chemical activation by zinc chloride. The influence of activation parameters such as impregnation ratio, activation temperature and carbonization time was investigated. The physicochemical properties of activated carbon were characterized using SEM, FTIR, BET and ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1554006
更新日期:2020-06-01 00:00:00
abstract::Aminophenols (AP) are synthetic intermediates in pharmaceutical, photographic and chemical dye industry. They can be released into the environment from wastewater and can react during water treatment processes. Therefore, it was interesting to study the oxidation of AP with chlorine and monochloramine in aqueous solut...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2015.1025859
更新日期:2015-01-01 00:00:00
abstract::One of the main problems of the Whole Effluent Toxicity is related to the use of bioindicator species representative of the target environment. Most wastewater discharges are of fresh water, so their salinity has to be adjusted when they are discharged to transitional and marine coastal waters, in order to perform tox...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330802505094
更新日期:2009-01-01 00:00:00
abstract::Currently available pore water samplers generally do not allow continuous monitoring of temporal variations in pore water composition. Therefore, a new type of pore water collector was designed and constructed. These collectors were constructed of polyvinyl chloride (PVC) materials, including PVC tubing with one end s...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2011.568006
更新日期:2012-01-01 00:00:00
abstract::Alternative uses of pig manure are being considered, including separation and eventual incineration of the solid fraction to produce energy and ash. The efficiency of a screw press, a decanting centrifuge and chemical treatment in transferring N, P and heavy metals from slurry to a solid fraction were compared. Chemic...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332808618900
更新日期:2007-12-01 00:00:00
abstract::The reductive dechlorination of tetrachloroethene (PCE) and trichloroethene (TCE) catalyzed by vitamin B12 was examined when zero valent metals (ZVMs) were used as bulk electron donors in batch reactors. UV-visible spectra showed that zinc reduces vitamin B12 Co(III) to vitamin B12 Co(I) through B12 Co(II) and iron re...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332308618332
更新日期:2002-10-01 00:00:00