Abstract：
:Maturation ponds are excellent natural treatment systems for disinfecting domestic wastewater from pathogenic bacteria because of their great sunlight exposure through depth and high pH and dissolved oxygen values - all considered important factors. Escherichia coli (E. coli) removal is higher at closer to the surface of the pond and proceeds to decrease due to the limited amount of sunlight at deeper depths. To quantify the decay coefficients (K b) of E. coli in a shallow maturation pond, quartz vessels were used to create isolated batch experiments and submerged at different depths inside the pond during different periods of the day (morning and afternoon). K b values ranged from 0.48 to 0.28 h-1, considering different depths and both periods. A dark control vessel was also used to quantify dark decay rates (K d) at the same depth and periods as the quartz vessels, and ranged from 0.14 to 0.04 h-1. Environmental variables did not appear to influence overall disinfection. Two models for estimating final E. coli concentrations were proposed, considering the kinetic coefficients obtained in the batch experiments and the dispersed flow regime for continuous flow ponds, which resulted in very good fittings with monitoring data and demonstrated the vertical profiling of E. coli concentration.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Dias DFC,von Sperling Mdoi
10.1080/09593330.2017.1310936subject
Has Abstractpub_date
2018-03-01 00:00:00pages
759-769issue
6eissn
0959-3330issn
1479-487Xjournal_volume
39pub_type
杂志文章abstract：:The effect of thermal pre-treatment on inoculum sludge for continuous H2 production from alkali hydrolysed rice straw using anaerobic baffled reactor (ABR) was investigated. Two reactors, ABR1 and ABR2, were inoculated with untreated and thermally pre-treated sludge, respectively. Both reactors were operated in parall...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2013.824013
更新日期：2013-07-01 00:00:00
abstract：:The aim of this study was to develop an experimental set-up and a methodology to uniformly contaminate several filter samples with high concentrations of cultivable bacteria and fungi. An experimental set-up allows contaminating simultaneously up to four filters for range of velocities representative of heating, venti...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2012.728731
更新日期：2013-03-01 00:00:00
abstract：:Fluoxetine is a selective serotonin reuptake inhibitor (SSRI) widely used in the treatment of major depression. It has been detected in surface and wastewaters, being able to negatively affect aquatic organisms. Most of the ecotoxicity studies focused only in pharmaceuticals, though excipients can also pose a risk to ...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2014.932438
更新日期：2014-11-01 00:00:00
abstract：:This study is a first-hand report of the immobilization of Nauclea diderrichii seed waste biomass (ND) (an agro-waste) with eco-friendly mesoporous silica (MS) and graphene oxide-MS (GO + MS) nanoparticles, producing two new hybrid materials namely: MND adsorbent for agro-waste modified with MS and GND adsorbent for a...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2013.839747
更新日期：2014-03-01 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：:A new approach to the simultaneous removal of SO2 and NO from flue gas, by TiO2 photocatalysis based on UV irradiation technology, is presented. Experiments on the simultaneous desulphurization and denitrification were carried out using this photocatalyst in a self-designed photocatalytic reactor. Under the optimal ex...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330903313786
更新日期：2009-12-14 00:00:00
abstract：:In order to solve the water solubility and difficult re-use of plant polyphenol (PP) in Cd(II) adsorption, PP was immobilized on the surface of magnetic material in this study. A core-shell nanocomposite Fe3O4/SiO2/PP (∼18 nm) was synthesized with 3-8 nm SiO2 and 2-5 nm PP. TGA analysis revealed the PP coating amount ...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2020.1811394
更新日期：2020-08-27 00:00:00
abstract：:The measurement of sludge bioavailability and biodegradability is important to assess the sludge potential as a source of carbon and energy during its biological stabilization. As the majority of biological sludge (secondary sludge) consists of biomass, an increase in sludge bioavailability can be achieved by using di...
journal_title：Environmental technology
pub_type： 杂志文章,评审
doi：10.1080/09593330802015508
更新日期：2008-08-01 00:00:00
abstract：:The feasibility of reusing hand-washing grey water contaminated with antibacterial hand-washing liquid for irrigation purposes in an urban farm is explored in this case study. Experiments are carried out to investigate if the quality of this grey water allows for its reuse in agriculture as per the guidelines establis...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2012.704404
更新日期：2013-01-01 00:00:00
abstract：:ABSTRACT Biohythane (hydrogen + methane) production in a two stage dark fermentation (DF) and anaerobic digestion (AD) process from food waste (FW) has been studied. This paper investigated the effect of operation temperature, i.e. mesophilic (34 °C) and thermophilic (55 °C) , on biohythane yield and total energy reco...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2020.1869319
更新日期：2021-01-06 00:00:00
abstract：:Waste from textile industries can severely harm the environment. Dyes are the main residues of these effluents. Saccharomyces cerevisiae is already known to be an efficient adsorbent for the removal of dyes. However, the lack of applicability and limitation of the use of cell biomass in an industrial treatment makes i...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2017.1340351
更新日期：2018-07-01 00:00:00
abstract：:Nitrous oxide (N2O), as one of the six greenhouse gases, is mainly produced in the biological nitrogen removal process of wastewater treatment plants (WWTPs). Establishing the N2O kinetic model can provide insight into the N2O generation mechanism and regulate its production. This work uses Activated Sludge Model NO.3...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2020.1822447
更新日期：2020-09-24 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 effects of ozonation on sludge disintegration should be investigated before the application of ozone during biological treatment, in order to minimize excess sludge production. In this study, changes in sludge and supernatant after ozonation of return activated sludge were investigated for seven different ozone do...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2011.650220
更新日期：2012-09-01 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
abstract：:The effect of the addition of trace elements on the conversion of a mixture of volatile fatty adds (Acetate, Propionate, Butyrate, in a ratio 3:1:1) by anaerobic granular sludge was investiated. Two Upflow Anaerobic Sludge Bed reactors (pH 7, ranging 30 degrees C) were operated for 140 days at an organic loading rate ...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330309385592
更新日期：2003-05-01 00:00:00
abstract：:The impact of adding diatomite on the treatment performance of slightly polluted algae-containing raw water using ozone pre-oxidation and polyaluminum chloride (PAC) coagulation was investigated. Results demonstrated that the addition of diatomite is advantageous due to reduction of the PAC dose (58.33%) and improveme...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2014.917710
更新日期：2014-11-01 00:00:00
abstract：:The adsorption-desorption of copper ions and a mixture of five metal ions (cadmium, copper, nickel, lead and zinc) in aqueous solutions by a spruce sawdust column was reported. Different studies about the copper binding mechanism, the efficiency of some regenerating solutions for the copper desorption, the use of colu...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330309385584
更新日期：2003-04-01 00:00:00
abstract：:A two-stage anaerobic digestion process operated under mesophilic and thermophilic conditions was investigated for the treatment of solid potato waste to determine optimal methane yield, efficiency of operation and process stability. A solid-bed reactor was used for hydrolysis/acidification stage while an upflow anaer...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593332808618881
更新日期：2007-11-01 00:00:00
abstract：:Anaerobic digestion of agricultural biomass or wastes can offer renewable energy, to help meet the rise in energy demands. The performance of an anaerobic digester considerably depends upon the complex interactions between bacterial and archaeal microbiome, which is greatly influenced by environmental factors. In the ...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2016.1159733
更新日期：2016-11-01 00:00:00
abstract：:Pine bark, a low-cost industrial residue, has been suggested as a promising substitute for granular activated carbon in the on-site treatment of water contaminated with 2,4,6-trinitrotoluene (TNT). However, the complex organic structure and indigenous microbial community of pine bark have thus far not been thoroughly ...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2014.909888
更新日期：2014-09-01 00:00:00
abstract：:This study developed the 2-step extraction method which eluted the Pb adsorbing on the surface of sediments in the first solution by aqua regia and extracted the Pb absorbed inside particles into the second solution by mixed acid of nitric acid, hydrofluoric acid and hydrogen peroxide solution. We applied the method t...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2018.1478885
更新日期：2019-11-01 00:00:00
abstract：:The concentrations of elemental carbon (EC) and organic carbon (OC) in PM2.5 atmospheric aerosol were measured at four different sites in Beijing: Beijing Olympic Forest Park (OF), Jiufeng National Forest Park (JF), Beijing Forestry University campus lawn (G), and roads near the Beijing Forestry University (S). The wi...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2015.1064170
更新日期：2016-01-01 00:00:00
abstract：:This study investigated the feasibility of using acrylonitrile-butadiene-styrene (ABS) waste plastic and nonmetal particles from waste printed circuit boards (WPCB) to manufacture reproduction composites (RC), with the aim of co-recycling these two waste resources. The composites were prepared in a twin-crew extruder ...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2014.940399
更新日期：2015-01-01 00:00:00
abstract：:Dry and chemical torrefaction of sugar cane bagasse was examined in this study with the aim of stabilising and upgrading the fuel properties of bagasse. Dry torrefaction was conducted at temperatures from 160°C to 300°C under inert conditions, whilst chemical torrefaction incorporated a H2SO4 pre-treatment of bagasse....
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2016.1237555
更新日期：2017-07-01 00:00:00
abstract：:The nitrate removal rate of denitrifying granular sludge in an upflow sludge blanket reactor is very high and reaches up to 3.6 gNO3-N-gVSS-1 d-1 at a nitrate loading rate (NLR) of 32.0 gNO3-N L-1 d-1. However, the granular sludge exhibits flotation under high NLR conditions, where the granules become large in size (o...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2013.808250
更新日期：2014-01-01 00:00:00
abstract：:The bioconversion of sugar-industry wastewater to value-added products is a prominent topic in biotechnology. This work cultured a carotenoid-producing photosynthetic bacterium, Rhodopseudomonas faecalis, in a photo-bioreactor containing different wastewater from wastewater treatment ponds of a Thai sugar company. The...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2018.1491633
更新日期：2020-01-01 00:00:00
abstract：:Constructed wetlands (CWs) are natural-friendly method to eliminate the pollutants stormwater pollutants. For this study, a pilot-scale treatment system consisting of a sedimentation tank (ST) and five recirculated fill-and-drain wetlands (namely CW-1, CW-2, CW-3, CW-4 and CW-5) were constructed to treat the first-flu...
journal_title：Environmental technology
pub_type： 杂志文章
doi：10.1080/09593330.2018.1543356
更新日期：2020-05-01 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：: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
