Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Removal of COD and Ammonia-Nitrogen by Sawdust/Bentonite Augmented SBR Process

Version 1 : Received: 5 August 2018 / Approved: 6 August 2018 / Online: 6 August 2018 (09:08:31 CEST)

A peer-reviewed article of this Preprint also exists.

Mohajeri, P.; Selamat, M.R.; Abdul Aziz, H.; Smith, C. Removal of COD and Ammonia Nitrogen by a Sawdust/Bentonite-Augmented SBR Process. Clean Technol. 2018, 1, 125-140. Mohajeri, P.; Selamat, M.R.; Abdul Aziz, H.; Smith, C. Removal of COD and Ammonia Nitrogen by a Sawdust/Bentonite-Augmented SBR Process. Clean Technol. 2018, 1, 125-140.

Abstract

Water pollutants removal by biomass adsorbent has been considered innovative and cost effective, thus commendable for application in industrial applications. However, certain important aspects have been overlooked by researchers, namely the efficiency in the operation time and pollutant removal. In this research, landfill leachate samples with organic components were treated using bentonite-enriched with sawdust augmented (SBR) process. By modifying the pH, the sawdust samples were categorized into three: the acidic, the alkaline, and the neutral. To bentonite samples, the pH-adjusted sawdust was added at 10%, 20%, and 30% amounts by mass respectively. At the optimum aeration rate of 7.5 L/min and contact period of 22 h, the treatment achieved 99.28% and 95.41% removal of COD and NH3-N with bentonite respectively. For both pollutants, in the presence of sawdust, the removal reduced by about 17% with contact period reduced to 2 h which was a considerable achievement.

Keywords

ammonia nitrogen; bentonite; COD; RSM; sawdust; SBR

Subject

Environmental and Earth Sciences, Environmental Science

Comments (1)

Comment 1
Received: 24 August 2018
Commenter: (Click to see Publons profile: )
The commenter has declared there is no conflict of interests.
Comment: It seems the initial premise of the study might be faulty - many studies on application of biomass as biosorbents actually focus on efficiency. After all, the goal of the optimization studies is to identify the operating conditions that are more efficient. The authors may want to clarify that.
+ Respond to this comment

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 1
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.