Removal of COD & NH3 from Produced Water using Modified Horizontal Subsurface Flow Constructed Wetlands (HSCW)
Received: 29 Jun 2018;
Published: 28 Sep 2018.
Copyright (c) 2018 Reaktor
License URL: http://creativecommons.org/licenses/by-nc-sa/4.0
Abstract
It is very common that COD and NH3 are found in Produced Water with elevated concentration. One proven technology that is capable in removing organic substances and nutrients, is Horizontal Subsurface Flow Constructed Wetland (HSCW). Based on characterization of produced water from one oil field in Indonesia, it was shown that COD and NH3 were found to exceed the threshold limit stated in Ministry of Environmental Decree no. 19 Year 2010. Modified HSCWs were developed in order to treat produced water containing high concentration of COD and NH3 and allowing anaerobic process to occur in the reactor. The HSCWs were planted by three different species; they were Sagittaria palaefolia (Jasmine Water), Scirpus grossus (Mensiang), and Typha latifolia (Walingi). Organic loading rates (OLRs) to the HSCWs reactor were varied from 7.2 to 72 gr COD/m2.day. It was found that HSCW planted with Typha latifolia had the highest removal efficiency for both COD and NH3 when the OLR was set at 14.4 gr COD/m2.day. Anaerobic bacteria were found in high number indicating that these bacteria involved actively in removing pollutants containing in produced water. However, further microbiology study should be performed in order to determine the role of anaerobic bacteria.
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Copyright (c) 2018 Reaktor
License URL: http://creativecommons.org/licenses/by-nc-sa/4.0
The Authors submitting a manuscript do so on the understanding that if accepted for publication, copyright of the article shall be assigned to Reaktor journal and Department of Chemical Engineering Diponegoro University as the journal publisher. Copyright encompasses exclusive rights to reproduce and deliver the article in all form and media, including reprints, photographs, microfilms and any other similar reproductions, as well as translations. The reproduction of any part of this journal, its storage in databases and its transmission by any form or media, such as electronic, electrostatic and mechanical copies, photocopies, recordings, magnetic media, etc., will be allowed only with a written permission from Reaktor journal and Department of Chemical Engineering Diponegoro University.
License URL: http://creativecommons.org/licenses/by-nc-sa/4.0
The Authors submitting a manuscript do so on the understanding that if accepted for publication, copyright of the article shall be assigned to Reaktor journal and Department of Chemical Engineering Diponegoro University as the journal publisher. Copyright encompasses exclusive rights to reproduce and deliver the article in all form and media, including reprints, photographs, microfilms and any other similar reproductions, as well as translations. The reproduction of any part of this journal, its storage in databases and its transmission by any form or media, such as electronic, electrostatic and mechanical copies, photocopies, recordings, magnetic media, etc., will be allowed only with a written permission from Reaktor journal and Department of Chemical Engineering Diponegoro University.