Normalization of wastewater coagulation-flocculation trials and implications in terms of variability in treatment performance and comparison of commercial coagulants.

abstract：:This study examined the changes in the bacterial community during biodegradation of polycyclic aromatic hydrocarbon (PAH) substrate when N'-N' dimethylformamide (DMF) was added. The microbial populations that biodegrade the PAH substrate were assessed by Fluorescence in-situ hybridization (FISH) and changed from 49.45...

journal_title：Environmental technology

authors： Chang YT,Lee JF,Chao HP,Liao WL

更新日期：2006-01-01 00:00:00

abstract：:Treatment of wastewater containing phenol using laboratory scale waste stabilisation ponds enriched with activated sludge was studied. After enrichment, the efficiency of these ponds under high phenol loading rates (i.e. up to 408 kg phenol ha(-1) day(-1)) was studied. At phenol loading rates of 6, 52, 312, 636 and 97...

journal_title：Environmental technology

authors： Avelar FJ,Martínez-Pereda P,Thalasso F,Rodríguez-Vázquez R,Alba J,Esparza-García FJ

更新日期：2003-04-01 00:00:00

abstract：:In this work, the removal of arsenite, As(III), and arsenate, As(V), from aqueous solutions onto thermally processed dolomite (charred dolomite) via microcolumn was evaluated. The effects of mass of adsorbent (0.5-2 g), initial arsenic concentration (50-2000 ppb) and particle size (<0.355-2 mm) on the adsorption capac...

journal_title：Environmental technology

authors： Salameh Y,Al-Muhtaseb AH,Mousa H,Walker GM,Ahmad MN

更新日期：2014-11-01 00:00:00

abstract：:Sediment borne pesticides are one of the major routes of transport of pesticides into the aquatic environment and could affect biota living closely in contact with it. Sediment residues of DDT were found to be easily adsorbed (95.0%) and were released in hard water (8.4%) and seawater (0.1%). DDT and DDE sediment resi...

journal_title：Environmental technology

authors： Bajet CM,Navarro MP

更新日期：2002-11-01 00:00:00

abstract：:This study evaluated the effects of Al-coagulant sludge characteristics on the efficiency ofcoagulant recovery by acidification with H2SO4. Two sludge characteristics were studied: types of coagulant and textures of the suspended solid in raw water. The coagulant types are aluminium sulphate and polyaluminium chloride...

journal_title：Environmental technology

authors： Chen YJ,Wang WM,Wei MJ,Chen JL,He JL,Chiang KY,Wu CC

更新日期：2012-12-01 00:00:00

abstract：:Acid-functionalized multi-walled carbon nanotube (MWCNTs-COOH) was prepared by acid treatment followed by decoration with magnetite (Fe3O4) nanoparticles (Fe3O4/MWCNTs-COOH) by co-precipitation of Fe2+/Fe3+ in the colloidal suspension of MWCNTs-COOH. The adsorption capacity and separation efficiency of these two adsor...

journal_title：Environmental technology

authors： Temnuch N,Suwattanamala A,Inpaeng S,Tedsree K

更新日期：2020-03-18 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

authors： Li Y,Li Y,Zang H,Chen L,Meng Z,Li H,Ci L,Du Q,Wang D,Wang C,Li H,Xia Y

更新日期：2020-06-01 00:00:00

abstract：:Understanding of mass transfer kinetics is important for biosorption of nitrogen compounds from palm oil mill effluent (POME) to gain a mechanistic insight into future biological processes for the treatment of high organic loading wastewater. In this study, the rates of global and sequential mass transfer were determi...

journal_title：Environmental technology

authors： Fulazzaky MA,Nuid M,Aris A,Muda K

更新日期：2018-09-01 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

authors： Oliveira AM,Mateus GAP,Santos TRTD,Filho BAA,Gomes RG,Bergamasco R

更新日期：2020-04-24 00:00:00

abstract：:Standard filtration methods have been characterized by poor recoveries when processing large-volume samples of environmental water. A method to pre-remove particulates present in turbid waters would be necessary to enhance recovery of protozoan oocysts. Particulate separation can be achieved by the proposed multiplex ...

journal_title：Environmental technology

authors： Pires NM,Dong T

更新日期：2014-03-01 00:00:00

abstract：:Cell agglomeration studies were conducted in anaerobic fluidized bed reactors without any external support. Granulation was studied at different combinations of loading and mixing conditions utilizing synthetic wastewater. Both single-stage and two-stage biomethanation processes were studied. Reactors of volume 0.55, ...

journal_title：Environmental technology

authors： Verma M,Sreekrishnan TR,Tyagi RD

更新日期：2005-07-01 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

authors： Ben Hafaiedh N,Fourcade F,Bellakhal N,Amrane A

更新日期：2020-06-01 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

authors： Arapatsakos CI,Karkanis AN,Sparis PD

更新日期：2003-09-01 00:00:00

abstract：:Red mud, an industrial by-product generated during the processing of bauxite ore, was investigated as an inexpensive and effective adsorbent for the adsorption of methylene blue from aqueous solution. Chemical and heat treatments were applied to the raw red mud. The effects of contact time, adsorbent amount, pH, tempe...

journal_title：Environmental technology

authors： Coruh S,Geyikçi F,Ergun ON

更新日期：2011-08-01 00:00:00

abstract：:Treatment of artificial wastewater containing a large amount of suspended solids comprised of soybean processing waste and pig fodder was studied using a novel multi-staged upflow anaerobic sludge blanket reactor. The reactor consisted of three compartments, each containing a gas solid separator. The wastewater had ch...

journal_title：Environmental technology

authors： Uemura S,Harada H,Ohashi A,Torimura S

更新日期：2005-12-01 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

authors： Coma M,Puig S,Monclús H,Balaguer MD,Colprim J

更新日期：2010-03-01 00:00:00

abstract：:The mechanical and biological waste treatment (MBT) is an increasingly important technology for the treatment of municipal solid waste (MSW) before landfilling. This process includes composting of the material with intensive aeration in order to minimize the organic fraction that may induce methane and leachate emissi...

journal_title：Environmental technology

authors： Clemens J,Cuhls C

更新日期：2003-06-01 00:00:00

abstract：:Considerable effort is being made to remediate soils contaminated with petroleum hydrocarbons, polyaromatic hydrocarbons, polychlorinated biphenyls, dioxins, heavy metals and other organic and inorganic compounds that have resulted from industrial activities, accidental spills and improper waste disposal practices. Cu...

journal_title：Environmental technology

authors： Saldaña MD,Nagpal V,Guigard SE

更新日期：2005-09-01 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

authors： Handojo L,Indarto A

更新日期：2020-03-01 00:00:00

abstract：:Moringa oleifera extract is a high-capacity flocculant agent for turbidity removal in surface water treatment. A complete study of a pilot-plant installation has been carried out. Because of flocculent sedimentability of treated water, a residual turbidity occured in the pilot plant (around 30 NTU), which could not be...

journal_title：Environmental technology

authors： Beltrán-Heredia J,Sánchez-Martín J

更新日期：2009-05-01 00:00:00

abstract：:Large volumes of saline (> 2% w/v NaCl) wastewaters are discharged from many industries; e.g. seafood processing, textile dyeing, oil and gas production, tanneries and drinking water treatment processes. Although anaerobic treatment would be the most cost-effective and sustainable technology for the treatment of many ...

journal_title：Environmental technology

authors： Xiao Y,Roberts DJ

更新日期：2010-07-01 00:00:00

abstract：:As classical traffic noise prediction models lack a deeper consideration of the impact of the gradient, the characteristics of longitudinal gradients from multiple roads were collected as data in the mountain city of Chongqing county, which was chosen as the entry point, to study the noise characteristics for a wide r...

journal_title：Environmental technology

authors： Chen L,Liu T,Tang B,Xiang H,Sheng Q

更新日期：2020-02-26 00:00:00

abstract：:The impact of carbon source variation on the physical and chemical characteristics of aerobic granular sludge and its biological nutrient (nitrogen and phosphorus) removal performance was investigated. Two identical sequencing batch reactors, R1 and R2, were set up. Granular biomass was cultivated to maturity using ac...

journal_title：Environmental technology

authors： Lashkarizadeh M,Yuan Q,Oleszkiewicz JA

更新日期：2015-01-01 00:00:00

abstract：:In this study, Fenton reagent has been adopted to oxidize and regenerate the resin based spherical activated carbon (SAC) adsorbed with toluene saturation. The effects of the mole ratio of Fe2+ and H2O2, the dosage of H2O2, pH value, temperature, regeneration time and the like on the regeneration rate of activated car...

journal_title：Environmental technology

authors： Ma L,Wu Z,He M,Wang L,Yang X,Wang J

更新日期：2020-08-01 00:00:00

abstract：:Following their successful utilization as novel bioanodes in Microbial Fuel Cells (MFCs), Layered Double Hydroxide (LDH) were tested in the present investigation, as promising cathodes to reduce electrons coming from oxidation of organic matter in the anode compartment, in the presence of oxygen used as successful oxi...

journal_title：Environmental technology

authors： Djellali M,Kameche M,Kebaili H,Bouhent MM,Benhamou A

更新日期：2021-01-01 00:00:00

abstract：:Secondary hospital wastewater treatment was investigated as an alternative to detoxification and disinfection after anaerobic digestion in a hospital located in southern Brazil. Tertiary and secondary effluents were assessed by general parameters. The use of advanced oxidation processes (UV/O3 and UV/TiO2/O3) showed p...

journal_title：Environmental technology

authors： Machado EL,Kist LT,Schmidt R,Hoeltz JM,Dalberto D,Alcayaga EL

更新日期：2007-10-01 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

authors： Ahn T,Allouche EN,Yanful EK

更新日期：2007-06-01 00:00:00

abstract：:Previous research has shown that dosing polymers directly to the saturator of a dissolved air flotation (DAF) process in replacement of upstream coagulation can achieve algae removal comparable to that of conventional treatment, as a result of bubble modification. In this paper we further explore the application of po...

journal_title：Environmental technology

authors： Henderson RK,Parsons SA,Jefferson B

更新日期：2010-06-01 00:00:00

abstract：:The doping of titanium dioxide (TiO2) with various metal or nonmetal elements has been considered as an effective strategy to extend the photoactive wavelength region to include visible light. In this paper, TiO2 nanoparticles co-doped with N and Fe were prepared via a sol-gel route, followed by a heat treatment at el...

journal_title：Environmental technology

authors： Fan JW,Liu JY,Hong J,Zhang J

更新日期：2009-12-01 00:00:00

abstract：:The separate treatment of sludge liquor, produced by dewatering anaerobic digested sludge at wastewater treatment plants, gives rise to extreme environments for nitrogen removal. A full-scale sequencing batch reactor was operated with the aim of introducing and studying denitritation as a supplement to nitritation in ...

journal_title：Environmental technology

authors： Gustavsson DJ,Nyberg U,Jansen Jl

更新日期：2011-05-01 00:00:00