Chitosan microspheres applied for removal of oil from produced water in the oil industry

One of the main environmental concerns associated with the exploration and production of oil fields is related to the generation of produced water, this is a strategic challenge for companies since is resposible for the largest share of waste genretared by the oil industry. This theme is presented as multidisciplinary since it is a study with dynamic models in an environmental area linked to the oil industry. Thus, the present work aims to evaluate the performance of dynamic environmental sustainability, from the generation of produced water from onshore oil fields located at the coastal basins of Brazil with higher oil production. The data were made available by the ANP (National Petroleum Agency) from its website, totalizing 67 fields during the years 2014, 2015 and 2016. In addition, dynamic Data Envelopment Analysis was used to determine dynamic efficiency. The results showed a positive effect of the variables directional wells, vertical wells and age, the first two variable showed a fundamental role in determining environmental efficiencies. Therefore, the results allowed to state that there is a poor management of the technological resources in onshore fields of the Brazilian coastal basins, generating excessive amounts of produced water.

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Evaluation of Contaminated Water Treatment on the Durability of Steel Piles

Advances in Civil Engineering ◽

10.1155/2020/1269563 ◽

2020 ◽

Vol 2020 ◽

pp. 1-6

Author(s):

Hussein Kareem Sultan ◽

Hussein Yousif Aziz ◽

Baydaa Hussain Maula ◽

Ali A. Hasan ◽

Wadhah A. Hatem

Keyword(s):

Produced Water ◽

Irradiation Time ◽

Oil Industry ◽

Good Alternative ◽

Organic Content ◽

Oil Field ◽

Contaminated Water ◽

Oily Wastewater ◽

Experimental Conditions ◽

Steel Piles

The most common effluent created by the oil industry is oily wastewater. This produced water (PW) corrodes the steel piles in the infrastructure of bridges, which shortens their service life. It is important to remove organic content in PW to prevent this outcome. Samples from the Ahdab oil field were used in this study. Two catalysts were selected: zinc oxide (ZnO) and titanium dioxide (TiO2) with photo presence as an energy source. The results were organic elimination of 96.4% and 93.4% using ZnO and TiO2, respectively. The experimental conditions were pH = 3 and an irradiation time of 120 min. Due to the ability of ZnO to adsorb high amounts of organic content from PW, there was an increased elimination of organic content. Hence, the maintenance of steel piles durability is a good alternative to approach the goals of this study. The results of the study demonstrated that the organic adsorption on a catalyst agent reinforced in nonappearance of radiation photo is insignificant.

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Photocatalytic degradation of hydrocarbons present in water, using Fe (III) modified TiO2

CT&F - Ciencia Tecnología y Futuro ◽

10.29047/01225383.156 ◽

2019 ◽

Vol 9 (1) ◽

pp. 105-109

Author(s):

Paula Catalina Velosa- Alfonso ◽

Andrés Felipe Loaiza- Carreño, ◽

Cesar Augusto Quiñones- Segura

Keyword(s):

Titanium Dioxide ◽

Produced Water ◽

Research Work ◽

Oil Industry ◽

Degradation Process ◽

Heterogeneous Photocatalysis ◽

Photometric Detection ◽

Production Water ◽

Field Samples ◽

Total Hydrocarbons

ABSTRACT This research work focused on the degradation of total hydrocarbons in synthetic water mixtures and in samples obtained from the inflow of a skimmer (production water) by means of heterogeneous photocatalysis. Titanium dioxide (TiO2) was used, modified with iron oxide (III) as photocatalyst, supported on polymethyl methacrylate plates, arranged in two reactors with volumetric capacities of 15.0 mL and 1.0 L. The degradation process was studied using two analysis methods: Photometric detection and gravimetric partition. Degradation percentages of 91.2% and 98% were obtained in field samples and synthetic mixtures respectively, with 4 h times; this allows for assessment of this technique's impact on the treatment of produced water in the oil industry, seeking for an alternative to the methods for treating water contaminated with hydrocarbons.

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