State of the art of produced water treatment

被引:377
|
作者
Jimenez, S. [1 ,2 ]
Mico, M. M. [1 ]
Arnaldos, M. [1 ]
Medina, F. [2 ]
Contreras, S. [2 ]
机构
[1] Acciona Agua SAU, R&D Dept, Parc Negocis Mas Blau 2,Avda Garrigues 22, Barcelona 08820, Spain
[2] Univ Rovira & Virgili, Dept Engn Quim, Av Paisos Catalans 26, E-43007 Tarragona, Spain
关键词
Produced water; Oil and grease; Oil and gas; Advanced oxidation processes; Industrial wastewater treatments; Reuse; ADVANCED OXIDATION PROCESSES; DISSOLVED AIR FLOTATION; REFINERY WASTE-WATER; PILOT-SCALE PLANT; OIL-IN-WATER; ORGANIC-COMPOUNDS; OFFSHORE OIL; FIELD; DEGRADATION; FENTON;
D O I
10.1016/j.chemosphere.2017.10.139
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Produced water (PW) is the wastewater generated when water from underground reservoirs is brought to the surface during oil or gas extraction. PW is generated in large amounts and has a complex composition, containing various toxic organic and inorganic compounds. PW is currently treated in conventional trains that include phase separators, decanters, cyclones and coarse filters in order to comply with existing regulation for discharge. These treatment trains do not achieve more restrictive limitations related to the reuse of the effluent (reinjection into extraction wells) or other beneficial uses (e.g., irrigation). Therefore, and to prevent environmental pollution, further polishing processes need to be carried out. Characterization of the PW to determine major constituents is the first step to select the optimum treatment for PW, coupled with environmental factors, economic considerations, and local regulatory framework. This review tries to provide an overview of different treatments that are being applied to polish this type of effluents. These technologies include membranes, physical, biological, thermal or chemical treatments, where special emphasis has been made on advanced oxidation processes due to the advantages offered by these processes. Commercial treatments, based on the combination, modification and improvement of simpler treatments, were also discussed. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:186 / 208
页数:23
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