Simultaneous carbon and nitrogen removal from high strength domestic wastewater in an aerobic RBC biofilm

Gupta, Anirudh; Gupta, Sudhir Kumar

doi:10.1016/s0043-1354(00)00442-5

Cited by 140 publications

(49 citation statements)

References 28 publications

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“…Notably higher nitrification potential detected in the systems treating DW might probably be attributed to that the high availability of ammonium supported the survival and development of nitrifying bacteria [47,48]. Nevertheless, with respect to denitrification potential, organic carbon source was a more crucial regulator in comparison to nitrate availability [49,50], resulting in higher values detected in down-flow cell fed with DW ( Fig. 4(b)).…”

Section: Discussionmentioning

confidence: 98%

Responses of microbial abundance and enzyme activity in integrated vertical-flow constructed wetlands for domestic and secondary wastewater

Chang

Liang

et al. 2014

Desalination and Water Treatment

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A B S T R A C TAlthough micro-organisms play a significant role in pollutant removal in constructed wetlands, little is known on the effect of wastewater-quality properties on microbial characteristics. In this study, two groups of integrated vertical-flow constructed wetland microcosms were applied to treat synthetic domestic wastewater and synthetic secondary effluent. The effects of wastewater-quality properties on microbial features were assessed. Results showed that higher values of microbial indicators were observed in the systems with domestic wastewater and in down-flow cells. Redundancy analysis revealed that organic matter concentration and temperature were two critical determinants influencing the microbial features.

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Section: Discussionmentioning

confidence: 98%

Responses of microbial abundance and enzyme activity in integrated vertical-flow constructed wetlands for domestic and secondary wastewater

Chang

Liang

et al. 2014

Desalination and Water Treatment

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“…The nitrogen compound in the effluent mainly existed in the form of nitrate (12.6 ± 3.4 mg/L) and the effluent concentration of nitrite was 0.23 ± 0.18 mg/L. The nitrite concentration was not accumulated, indicating that autotrophic denitrification might occur in the inner biofilm of the WDSRBC system [34,35]. The average TN removal efficiency in the ANF-WDSRBC system was 54.5% ± 3.9% (Table 2), which was similar to previous reports for AT-MBR system treating digested domestic wastewater [7].…”

Section: Performance Of the Anf-wdsrbc System At Steady Statementioning

confidence: 99%

Performance and Microbial Diversity in a Low-Energy ANF-WDSRBC System for the Post-Treatment of Decentralized Domestic Wastewater

Li¹,

Lü²

2017

Water

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Abstract:Recently, more decentralized wastewater treatments are of great interest for rural regions. In this work, a novel ANF-WDSRBC system combined with an anoxic filter (ANF) and a four-stage water-dropping-self-rotating biological contactor (WDSRBC) was designed as a post-treatment option. With a total hydraulic retention time (HRT) of 8.8 h and reflux ratio of 1:1, the ANF-WDSRBC system was operated 160 days. The results showed the ANF-WDSRBC system had better performance without mechanical aeration devices, the removal efficiencies of chemical oxygen demand (COD), ammonia (NH 4 + -N) and total nitrogen (TN) were 61.4% ± 4.3%, 86.1% ± 3.7%, and 54.5% ± 3.9%, respectively. By means of high-throughput MiSeq sequencing, the results suggested that Proteobacteria, Bacteroidetes, Firmicutes, and Chloroflexi were the predominant phyla in the system. In the WDSRBC units, Nitrosomonas, Nitrosospira, Bacillus, and Nitrospira were the main genera to take part in nitrification. Longilinea, Bellilinea, Thiobacillus, and Thauera in the ANF unit were the main genera to participate in denitrification and organic matters degradation. The novel ANF-WDSRBC system had great potential in the post-treatment of decentralized domestic wastewater.

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“…When wastewater was discharged by turntable, air was dissolved in water film continuously, increased the dissolved oxygen. Biofilm contacted with wastewater and air alternately, formed a serial process of oxygen absorption, adsorption and oxygenolysis [3,4] .…”

Section: Rotating Biological Disk Processmentioning

confidence: 99%

Solution of Automatic Control System Based on PLC in Decentralized Wastewater Treatment

Wang¹,

Shi²,

Zhu³

et al. 2015

Proceedings of the 4th International Conference on Information Technology and Management Innovation

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KEYWORD:Decentralized wastewater treatment; Programmable logic controller (PLC); Automatic control ABSTRACT: Decentralized wastewater increasingly serious, remote control of small scale wastewater treatment station operation has become urgent technology problems. This paper mainly introduces the component and function of automation system used in decentralized wastewater treatment and how to use PLC to achieve automation control. The control automation, resource optimization, management and control integration were archived. background

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Simultaneous carbon and nitrogen removal from high strength domestic wastewater in an aerobic RBC biofilm

Cited by 140 publications

References 28 publications

Responses of microbial abundance and enzyme activity in integrated vertical-flow constructed wetlands for domestic and secondary wastewater

Responses of microbial abundance and enzyme activity in integrated vertical-flow constructed wetlands for domestic and secondary wastewater

Performance and Microbial Diversity in a Low-Energy ANF-WDSRBC System for the Post-Treatment of Decentralized Domestic Wastewater

Solution of Automatic Control System Based on PLC in Decentralized Wastewater Treatment

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