Environmental engineering and management journal Impact Factor & Information
Current impact factor: 1.26
Impact Factor Rankings
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Publications in this journal
to recover polyphenols compounds. The aim of the study was to compare the efficiency of these "green" processes with a
conventional extraction technique (ethanolic extraction). Supercritical fluid extraction was carried out in two steps: (i) static
extraction for 15 min at 1000 psi with pure CO2 and (ii) dynamic extraction for 45 min at 35, 40 and 50 0C, 1200, 2000 and 2500
psi, with CO2 and 70% ethanol as co-solvent. UAE was carried out in an ultrasonic bath at 45, 50 and 60 0C for 5 to 75 minutes.
The ethanolic extraction was performed using ethanol (70%) in a closed oven for 13 days. The extracts were characterized using
Folin-Ciocalteu method for total phenolic content and quantified by high liquid performance chromatography (HPLC). The
study recommend SFE and UAE instead of traditional ethanolic techniques since these provide high extraction yields, pure
extracts, with a large number of polyphenolic compounds extracted and are environmentally friendly
Environmental engineering and management journal 03/2015; 14(3):615-623.
The paper presents a hybrid method for the advanced removal of low biodegradable organic compounds from water, by
combining the separation selectivity of the membrane with the oxidation efficiency of the photocatalytic process. The aim of this
study is to evaluate the performance of the hybrid method to remove toxic compounds from wastewater. The advanced oxidation
process, based on a photocatalytic reactor with continuous recirculation, ultraviolet (UV) radiations and a membrane, was used
for the removal of 2,4–dichlorphenol (2,4-DCP). The membrane was prepared by immobilization on the carrier material such as
fiberglass through the sol-gel specific method, with layer-by-layer deposition.
Key words: 2,4–dichlorophenol, membrane, toxic compounds, wastewater
Environmental engineering and management journal 03/2015; 13 (2014)(9):2153-2158.
Environmental engineering and management journal 03/2015; 14(3):567-574.
Evaluation of spatial/ temporal water quality data at reservoirs has shown differences after the dam construction as well as long-term changes of water chemistry. One of the most recent reservoirs created in Europe is Ilarion Reservoir in Western Macedonia – Greece (2012). In this work, the water physicochemical characteristics of this young reservoir and the spatiotemporal water quality variation of the feeding river and its main tributaries have been studied, and statistically interpreted. The aqueous system of the young reservoir after two years of formation does not seem to have reached its stabilization age but a stabilization tendency appears at some quality parameters. The dissolution of plant residues covering the flooded areas and the water volume changes affected the water quality, while excesses of legislation’s limits for some parameters have been observed. The most affected parameters, remaining at high levels are TKN, ammonia, nitrite nitrogen and color. The feed water quality is generally within the legislation’s limits with the exception of nitrite and ammonium nitrogen parameters which exceed the maximum permissible legislation’s limits and are the main pollution sources of the young reservoir. Monitoring these parameters is necessary to determine if the observed excess values could lead to eutrophic conditions and toxic habitat for fishes. The statistical analysis indicated some significant parameters responsible for large variations in water quality and allowed the identification and apportionment of pollution sources as an aspect of the temporal/spatial variations in water quality, indispensable for effective water quality management.
Environmental engineering and management journal 03/2015;
Wine analysis is a complex process, requiring multiple techniques and very in-depth multidisciplinary knowledge. Moreover,
when talking about sensorial potent wines, like Muscat or Tămâioasă Românească (from aromatic Romanian grape variety), the
identification and characterization of its volatile compounds is achieved through different methods, most calling for powerful
solvents to separate the aroma substances.
Supercritical fluid extraction is a powerful technique with great promise in organic analytical chemistry. To date, little has been
published on the use of SFE in the analysis of wine aromas.
The main objective of this study is the analysis of volatiles in samples of Tămâioasă românească wines through a custom-made
SFE method. The wine variants have been obtained by applying the general technological processes for aromatic wines, using
specific oenological products. An in-house SFE analysis method was developed and applied, the obtained extracts were then
analyzed by gas chromatography coupled to mass spectrometry (GC-MS) to identify the captured compounds.
Regarding the total number of findings in respect to volatiles, the highest concentrations occur with low molecular weight
alcohols, esters and acetic acid. Besides, there were also identified other volatile compounds, such as terpenoides and phenols.
These specific compounds originate from the grape variety and give the “varietal” character to the wines.
Environmental engineering and management journal 02/2015;
Hydrogel membranes obtained by neat polyvinyl alcohol (PVA) or PVA with various bio insertions like: Scleroglucan (Scl), Zein
(Zein) or Cellulose (Cel), were subjected to diffusion and sorption/desorption experiments using different type of dyes such as:
Crystal Violet (CV), Methylene Blue (MB), Congo Red (CR). If the sorption, desorption or diffusion of a dye in/from/through a
hydrogel is usually monitored by the dye solution analysis, in this case the transport phenomena are followed by the membrane
analysis. Photographic images of colored hydrogels obtained by PVA hydrogel immersion in aqueous solutions of different dyes,
with different concentrations have been obtained by using a digital camera CANON Power Shot SX110 with 3456×2592 pixels
resolution, in artificial light. The resulted images were processed by using Adobe Photoshop software, CS5 version, and analyzed
through CIEL*a*b* system (CIELAB). This method gives the possibility to make difference between two very close colors by
taking into account parameters such as: hue, saturation and luminosity.
As a particular case, the present study evidenced, by CIELAB method that all the prepared hydrogels have a good capacity to
uptake dyes from aqueous solutions, the highest efficiency being obtained for PVA/Scl hydrogels. Our results are in good
agreement with those obtained from SEM and DSC analysis of the loaded gels.
Environmental engineering and management journal 02/2015; 14(2):361.
Salt tolerance was studied in eight upland cotton cultivars (CIM-446, CIM-473, CIM-496, CIM-499, CIM-506, CIM-554, CIM- 707 and SLH-284) under control and four NaCl salinity concentrations (50, 100, 150 and 200 mM). Significant (p≤0.01) variations were observed among cultivars, salinity concentrations, and cultivar by salinity interactions for various growth traits and ions (K+ and Na+) accumulation in dry shoot and root tissues. As compared to control, the growth variables were decreased by increasing concentrations of NaCl, however, greatest reduction was observed at 200 mM salinity stress. The uptake of K+ and Na+ were inversely proportional, and Na+ accumulation was least in control and gradually increased as salinity application increased. The K+ absorption was highest in control and gradually decreased through increased salinity in shoot and root tissues.
The foliage has more capacity for Na+ accumulation than roots which ensured increased K+ absorption in roots. The K+/Na+ ratio of various genotypes differed significantly at various NaCl concentrations. Cultivar CIM-707 by having medium K+/Na+ ratio, showed better K+ utilization, and identified as most tolerant genotype to salinity. Such studies are useful in identification of salt tolerant genotypes for salt affected areas, and the farming community can benefited by getting optimum yield from cultivar CIM- 707.
Environmental engineering and management journal 02/2015;
Environmental engineering and management journal 02/2015; 14(2):289-296.
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