Showing 1-30 of 183 results for "petrochemical"
Qi Yang et al.
Bioresource technology, 196, 169-175 (2015-08-04)
Microaerobic hydrolysis-acidification (MHA)-anoxic-oxic (A/O) processes were developed to treat actual petrochemical wastewater. The results showed that the overall COD removal efficiency was 72-79% at HRT=20h, and MHA accounted for 33-42% of COD removal, exhibiting good efficiency of acidogenic fermentation. Ammonium...
Mahmood Derakhshan et al.
Journal of biological engineering, 12, 10-10 (2018-06-29)
Petrochemical wastewaters are highly polluting due to having various destructive materials such as aromatic hydrocarbons and heavy metal ions. Therefore, they need to be treated before disposal to the environment. However, due to low biodegradability, applying common treatment methods such...
Tzu-Hsuen Yuan et al.
Environmental research, 136, 219-226 (2014-12-03)
The relationship between external exposure and internal doses of polycyclic aromatic hydrocarbons (PAHs) has not been established for people living in industrial areas. This study was carried out to estimate the relationship between particle-phase PAH exposure and urinary 1-hydroxypyrene (1-OHP)...
Ali Akbar Mohammadi et al.
Nutritional neuroscience, 19(9), 387-395 (2015-04-17)
The aim of this study was to determine effects of probiotic yogurt and multispecies probiotic capsule supplementation on mental health and hypothalamic-pituitary-adrenal axis in petrochemical workers. The present randomized double-blind, placebo-controlled trial was conducted on 70 petrochemical workers. Subjects were...
Judit Ribera-Pi et al.
The Science of the total environment, 715, 136800-136800 (2020-02-03)
Water recycling and reuse is of important value in water-using sectors like petrochemical industry. The aim of this research was to optimise the pre-treatment of petrochemical wastewater to undergo a further membrane treatment, with the final objective of water recycling...
Changyong Wu et al.
Bioresource technology, 194, 256-262 (2015-07-27)
Petrochemical wastewater was pretreated by hydrolysis acidification to improve the biodegradation and treatability on limited aeration conditions. The results showed limited aeration with DO from 0.2 to 0.3mg/L (average ORP was -210 mV) was the best condition. The BOD5/COD of...
Shilpi Verma et al.
Environmental science and pollution research international, 24(2), 1953-1966 (2016-11-01)
Purified terephthalic acid (PTA) plant of a petrochemical unit generates wastewater having high pollution load. Acid treatment of this wastewater reduces the chemical oxygen demand (COD) load by more than 50%, still leaving substantial COD load (>1500 mg/L) which should be...
Saira Khalid et al.
Environmental science and pollution research international, 23(20), 20646-20660 (2016-07-30)
Application of chlorpyrifos (CP) has increased its environmental concentration. Increasing CP concentration has increased chances of adverse health effects. Its removal from environment has attained researcher's attention. CP degrading bacterial strains were isolated from wastewater and agricultural soil. Finally, selected...
Eva Gallego et al.
The Science of the total environment, 618, 1440-1448 (2017-11-08)
1,3-Butadiene is a carcinogenic compound that can be emitted to the atmosphere from several sources, such as the combustion of organic matter or traffic. However, petrochemical industry is one of the main origins of this compound. Several campaigns (2013-2017) were...
He Nan et al.
Journal of chromatography. A, 1481, 127-136 (2016-12-31)
Lipidic ionic liquids (ILs) possessing long alkyl chains as well as low melting points have the potential to provide unique selectivity as well as wide operating ranges when used as stationary phases in gas chromatography. In this study, a total...
Cheng Zhang et al.
Journal of chromatography. A, 1440, 160-171 (2016-02-27)
Structurally-tuned ionic liquids (ILs) have been previously applied as the second dimension column in comprehensive two-dimensional gas chromatography (GC×GC) and have demonstrated high selectivity in the separation of individual aliphatic hydrocarbons from other aliphatic hydrocarbons. However, the maximum operating temperatures...
Marwa Elkady et al.
Materials (Basel, Switzerland), 13(11) (2020-06-04)
Nano-activated carbon (NAC) prepared from El-Maghara mine coal were modified with nitric acid solution. Their physico-chemical properties were investigated in terms of methylene blue (MB) adsorption, FTIR, and metal adsorption. Upon oxidation of the ACS with nitric acid, surface oxide...
Linh Dao et al.
Ecotoxicology and environmental safety, 108, 195-202 (2014-08-03)
The wastewater originating from simultaneous production of styrene and propylene oxide (SPO) is classified as highly polluted with chemical oxygen demand level in the range 5965 to 9137mgL(-1)-as well as highly toxic. The dilution factor providing for a 10 percent...
Michael H I Comber et al.
Integrated environmental assessment and management, 11(4), 653-665 (2015-03-27)
The trend in discharges of petroleum-related substances from refineries in Europe shows a consistent picture of declining emissions, since first measured in 1969. This decline coincides with enhanced internal capture or recycling procedures and increasing use of physical and biological...
O V Makarova et al.
Genetika, 39(9), 1268-1274 (2003-10-30)
Genetic polymorphism of xenobiotic metabolizing enzymes responsible for individual susceptibility to different environmental factors was examined in a cohort of petrochemical workers occupationally exposed to adverse action of chemical compounds. Molecular genetic analysis of the 1462V mutation in exon 17...
Tijs M Lammens et al.
Environmental science & technology, 45(19), 8521-8528 (2011-08-30)
Glutamic acid is an important constituent of waste streams from biofuels production. It is an interesting starting material for the synthesis of biobased chemicals, thereby decreasing the dependency on fossil fuels. The objective of this paper was to compare the...
Volatile organic compounds in water near petrochemical factories in Taiwan.
Kuo HW, et al.
Chemosphere, 33(5), 913-920 (1996)
A R Irmiakova et al.
Meditsina truda i promyshlennaia ekologiia, (5), 41-48 (2012-08-04)
The article presents results obtained in study of relationship between polymorph variants of CYP1A1 and CYP1A2 genes with reproductive and thyroid diseases risk in female workers of petrochemical industry, when compared with reference group females. Variants TD and DD of...
Alan Hodges et al.
Chemosphere, 174, 46-48 (2017-02-06)
Wastewater derived from petroleum refining currently accounts for 33.6 million barrels per day globally. Few wastewater treatment strategies exist to produce value-added products from petroleum refining wastewater. In this study, mixed culture microalgal biofilm-based treatment of petroleum refining wastewater using...
Sherif A Younis et al.
Journal of hazardous materials, 397, 122792-122792 (2020-05-11)
Through in situ encapsulation of cetyltrimethylammonium bromide (CTAB) and urea-functionalized SiO2 nanoparticles in alginate hydrogel, two types of new functionalized microbeads, CTAB-SiO2@alginate (organophilic) and urea-SiO2@alginate (aminated), were produced. Their adsorption behavior toward multiple chlorophenols (CPs: e.g., 4-chlorophenol (MCP), 2,4-dichlorophenol (DCP)...
Michel Caluwé et al.
Bioresource technology, 238, 559-567 (2017-05-10)
In this study, petrochemical wastewater from the port of Antwerp was used for the development of aerobic granular sludge. Two different reactor setups were used, (1) a completely aerated sequencing batch reactor (SBR
Niobium carbide as permanent modifier for silicon determination in petrochemical products by emulsion-based sampling GF AAS.
Luz, Maciel S., and Pedro V. Oliveira
Fuel: The Science and Technology of Fuel and Energy, 255-260 (2014)
Antonella Mansi et al.
Toxicology letters, 213(1), 57-62 (2011-02-09)
The identification of reliable biomarkers is critical for the assessment of occupational exposure of benzene: S-phenylmercapturic acid (SPMA) and trans,trans-muconic acid (t,t-MA) are the most currently used. t,t-MA is an open-ring metabolite, but it is also a metabolite of the...
Hamed Abbasfard et al.
Environmental technology, 34(17-20), 2867-2879 (2014-02-18)
The nitric acid plant of a domestic petrochemical complex is designed to annually produce 56,400 metric tons (based on 100% nitric acid). In the present work, radial-flow spherical bed reactor (RFSBR) for selective catalytic reduction of nitric oxides (NO(x)) from...
Carin von Mühlen et al.
Journal of chromatography. A, 1105(1-2), 39-50 (2005-10-04)
This article discusses the application of comprehensive two-dimensional gas chromatography (GC x GC) to samples derived from petrochemicals. The use of GC x GC for characterization of petroleum and petroleum derivatives, through group type analysis, such as benzene, toluene, ethylbenzene...
Shilpi Verma et al.
Environmental technology, 33(13-15), 1789-1801 (2012-09-20)
The present work describes the physicochemical and thermal characteristics of the sludge generated after thermochemical treatment of wastewater from a petrochemical plant manufacturing purified terephthalic acid (PTA). Although FeCl3 was found to be more effective than CuSO4 in removing COD...
Ruei-Hao Shie et al.
Journal of the Air & Waste Management Association (1995), 63(6), 702-711 (2013-07-19)
This study used pollution roses to assess sulfur dioxide (SO) pollution in a township downwind of a large petrochemical complex based on data collected from a single air quality monitoring station. The pollution roses summarized hourly SO2 concentrations at the...
Mohammad Ghasemian et al.
Environmental technology, 33(16-18), 1937-1943 (2012-12-18)
A laboratory-scale anaerobic sequencing batch reactor was used to evaluate treatment of a synthetic substrate mixture representing petrochemical wastewater containing methyl tert-butyl ether (MTBE), ethanol and acetic acid. Influent MTBE concentrations were 5, 10 and 50 mg/l (corresponding to MTBE...
Angela Cecilia Pesatori et al.
La Medicina del lavoro, 100(2), 83-90 (2009-04-23)
Only few studies have examined early hematological effects in human populations exposed to low benzene levels and their findings are controversial. We evaluated hematological outcomes (WBC, neutrophils, lymphocytes, monocytes, eosinophils, basophils, RBC, Hb, HCT MCV, platelets and MPV) in a...
F Aladar Bencsath et al.
Analytical and bioanalytical chemistry, 407(14), 4079-4090 (2015-03-23)
A headspace solid-phase microextraction gas chromatography-mass spectrometry (SPME GC-MS) method is described, to screen seafood for volatile organic compounds (VOCs) associated with petrochemical taint. VOCs are extracted from the headspace of heated sample homogenates by adsorption onto a SPME fiber...

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