industrial wastewaters are of the major sources of heavy metal pollution in the environment. in the middle east, gas and oil industry is the major source of heavy metal pollution and releases significant amounts of metals into the terrestrial and aquatic environment. in this research the capability of the common reed ( phragmitis australis ) in absorbing heavy metals cd, pb and v from the waste...

Petroleum industries are large water consumers and generate a lot of wastewater at various stages industrial operations. Wastewater from the petroleum contain recalcitrant pollutants such as hydrocarbons that present in high concentrations, dissolved solids sulfur compounds can pose potential environmental threat. Bioelectrochemical systems (BESs) known to be sustainable processes treat kinds w...

A very simple and quick analytical method, based on direct aqueous injection, for determination of halogenated solvents in refinery water and wastewater, is described. There is a need to determine halogenated solvents in refinery water streams, because they may originate from several processes. There is also a need to develop methods enabling VOX to be determined in samples containing oil fract...

a lab-scale cross flow membrane bioreactor (cf-mbr) was operated to determine the biokinetic coefficients under mlss concentrations of 5000 and 3000 mg/l. the investigation showed that the yield (y), the endogenous decay coefficient (kd), the maximum specific growth rate (μm) and the saturation constant (ks) were 0.276 mg/mg, 0.07 /day, 0.653 /day, and 396.62 mg cod/l respectively for mlss 500...

Electro-oxidation, also called electrochemical advanced oxidation, uses electricity to generate hydroxyl radicals to perform oxidation in wastewater treatment. A new commercially available electro-oxidation process—Zimpro® Electro-oxidation (ZEO)—is especially effective for treating the highly problematic spent caustic streams produced by sweetening operations in petroleum refineries and ethyle...

This paper studied the pollution characteristics of shale oil refinery wastewater, by using conventional analysis, infrared spectroscopy, ultraviolet chromatography and mass spectrometry. The results showed that: wastewater contains high concentration dissolved organic matter, which was poor in biological treatment. structure groups such as benzene ring, carbonyl group, hydroxyl ether group car...