Effects of an electrocoagulation-air flotation-microfiltration pretreatment process on the start-up of a moving bed biofilm reactor: performance and microbial community structure
Environmental Science: Water Research and Technology, ISSN: 2053-1419, Vol: 10, Issue: 3, Page: 743-756
2024
- 1Citations
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
A moving bed biofilm reactor (MBBR) is an efficient water treatment process, widely used in recirculating aquaculture systems. The optimization of relevant parameters to shorten the start-up period and improve the performance of the MBBR is an ongoing research hotspot. In this study, a new aquaculture wastewater pretreatment process, the electrocoagulation-air flotation-microfiltration technology (EC-AF-MF), was constructed, and its effects on the MBBR start-up, performance, and microbial community structure were investigated. The electrocoagulation-air flotation (EC-AF) process significantly increased the particle size of total suspended solids (TSS), thereby enhancing the microscreen drum filter's removal efficiency (RE) for TSS. In addition, EC altered the microbial community and improved the MBBR's RE for TSS, chemical oxygen demand (COD), and total ammonia nitrogen (TAN). Interestingly, the Fe anode produced better results. The REs for TSS, COD, and TAN in the Fe group were 89.27 ± 0.30%, 69.99 ± 1.13%, and 100%, respectively. The Fe anode accelerated not only the biofilm formation and stability but also the start-up of the MBBR. These findings indicate that the EC(Fe anode)-AF-MF process could shorten the start-up period and enhance the performance of the MBBR, providing a reference for the standard treatment of aquaculture wastewater and promoting an ecologically sustainable aquaculture industry.
Bibliographic Details
Royal Society of Chemistry (RSC)
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