Produced water treatment by semi-continuous sequential bioreactor and microalgae photobioreactor.

IF 4.3 3区生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Bioresources and Bioprocessing Pub Date : 2024-06-02 DOI:10.1186/s40643-024-00775-3

Nur Farahah Mohd Khairuddin, Nadeem Khan, Saravanan Sankaran, Wasif Farooq, Irshad Ahmad, Isam H Aljundi

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Abstract

Produced water (PW) from oil and gas exploration adversely affects aquatic life and living organisms, necessitating treatment before discharge to meet effluent permissible limits. This study first used activated sludge to pretreat PW in a sequential batch reactor (SBR). The pretreated PW then entered a 13 L photobioreactor (PBR) containing Scenedesmus obliquus microalgae culture. Initially, 10% of the PW mixed with 90% microalgae culture in the PBR. After the exponential growth of the microalgae, an additional 25% of PW was added to the PBR without extra nutrients. This study reported the growth performance of microalgae in the PBR as well as the reduction in effluent's total organic carbon (TOC), total dissolved solids (TDS), electrical conductivity (EC), and heavy metals content. The results demonstrated removal efficiencies of 64% for TOC, 49.8% for TDS, and 49.1% for EC. The results also showed reductions in barium, iron, and manganese in the effluent by 95, 76, and 52%, respectively.

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采用半连续顺序生物反应器和微藻光生物反应器处理采出水。

石油和天然气开采产生的采出水（PW）会对水生生物和生物体造成不利影响，因此有必要在排放前进行处理，以达到允许的排放限值。这项研究首先在一个序批式反应器（SBR）中使用活性污泥预处理采出水。然后，预处理后的废水进入一个 13 L 的光生物反应器（PBR），该反应器中含有双孢菇微藻培养物。最初，10% 的废水与 PBR 中 90% 的微藻培养物混合。在微藻指数级生长之后，再向 PBR 中添加 25% 的 PW，但不添加额外的营养物质。该研究报告了微藻在 PBR 中的生长表现，以及污水中总有机碳 (TOC)、总溶解固体 (TDS)、电导率 (EC) 和重金属含量的降低情况。结果表明，TOC 的去除率为 64%，TDS 为 49.8%，EC 为 49.1%。结果还显示，污水中的钡、铁和锰含量分别减少了 95%、76% 和 52%。

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来源期刊

Bioresources and Bioprocessing BIOTECHNOLOGY & APPLIED MICROBIOLOGY-

CiteScore

7.20

自引率

8.70%

发文量

118

审稿时长

13 weeks

期刊介绍： Bioresources and Bioprocessing (BIOB) is a peer-reviewed open access journal published under the brand SpringerOpen. BIOB aims at providing an international academic platform for exchanging views on and promoting research to support bioresource development, processing and utilization in a sustainable manner. As an application-oriented research journal, BIOB covers not only the application and management of bioresource technology but also the design and development of bioprocesses that will lead to new and sustainable production processes. BIOB publishes original and review articles on most topics relating to bioresource and bioprocess engineering, including: -Biochemical and microbiological engineering -Biocatalysis and biotransformation -Biosynthesis and metabolic engineering -Bioprocess and biosystems engineering -Bioenergy and biorefinery -Cell culture and biomedical engineering -Food, agricultural and marine biotechnology -Bioseparation and biopurification engineering -Bioremediation and environmental biotechnology