Comparative experiment on treating digested piggery wastewater with a biofilm MBR and conventional MBR: simultaneous removal of nitrogen and antibiotics

Song, Xiaoyan; Li, Rui; Chen, Lüjun; Kawagishi, Tomoki

doi:10.1007/s11783-017-0919-5

Cited by 48 publications

(15 citation statements)

References 32 publications

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“…It emerged that the MBR systems functioned well for treating swine wastewater filled with much pollution containing antibiotics and hormones. Not only was the performance of MBR not significantly disturbed by the existence of antibiotics and hormones, but also such toxicants can be removed effectively in MBRs (Galán et al, 2012;Liu et al, 2016;Prado et al, 2009b;Song et al, 2017c). For example, Song et al (2017c) indicated 83.8% of typical veterinary antibiotics could be removed from digested swine wastewater in the MBR at the HRT of 5-4 d, although the removal rare decreased to 57.0% and 25.5%…”

Section: Membrane Bioreactor Processes (Mbrs)mentioning

confidence: 99%

Bioprocessing for elimination antibiotics and hormones from swine wastewater

Cheng

Ngo

Guo

et al. 2018

Science of The Total Environment

262

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Antibiotics and hormones in swine wastewater have become a critical concern worldwide due to the severe threats to human health and the eco-environment. Removal of most detectable antibiotics and hormones, such as sulfonamides (SAs), SMs, tetracyclines (TCs), macrolides, and estrogenic hormones from swine wastewater utilizing various biological processes were summarized and compared. In biological processes, biosorption and biodegradation are the two major removal mechanisms for antibiotics and hormones. The residuals in treated effluents and sludge of conventional activated sludge and anaerobic digestion processes can still pose risks to the surrounding environment, and the anaerobic processes' removal efficiencies were inferior to those of aerobic processes. In contrast, membrane bioreactors (MBRs), constructed wetlands (CWs) and modified processes performed better because of their higher biodegradation of toxicants. Process modification on activated sludge, anaerobic digestion and conventional MBRs could also enhance the performance (e.g. removing up to 98% SMs, 88.9% TCs, and 99.6% hormones from wastewater). The hybrid process combining MBRs with biological or physical technology also led to better removal efficiency. As such, modified conventional biological processes, advanced biological technologies and MBR hybrid systems are considered as a promising technology for removing toxicants from swine wastewater.

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Section: Membrane Bioreactor Processes (Mbrs)mentioning

confidence: 99%

Bioprocessing for elimination antibiotics and hormones from swine wastewater

Cheng

Ngo

Guo

et al. 2018

Science of The Total Environment

262

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“…The aeration rate was monitored using a digital flow meter. An air pump Dds-11a conductivity meter [10][11][12][13] and heater band were used to provide gas flow and to control the temperature, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…As the standard for refinery wastewater discharge upgrades and the strictness of national and local environmental management intensifies, there are increasing challenges for enterprises to improve wastewater treatment processes. Various technologies, including physical, chemical and biological methods, have been developed for the further treatment of wastewater or secondary effluent . However, the removal effects of COD and NH 4 + ‐N in refinery wastewater are not notable, and there are disadvantages such as low load and poor impact resistance …”

Section: Introductionmentioning

confidence: 99%

“…Various technologies, including physical, chemical and biological methods, have been developed for the further treatment of wastewater or secondary effluent. [6][7][8][9][10][11] However, the removal effects of COD and NH 4 + -N in refinery wastewater are not notable, and there are disadvantages such as low load and poor impact resistance. 12,13 Biological treatment processes utilize diverse microbial communities that interact in a multitude of ways to mediate a myriad of biological reactions.…”

Section: Introductionmentioning

confidence: 99%

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A bioaugmentation agent allowing the advanced treatment of refractory refinery wastewater in a biological aerated filter and analysis of its microbial community

Feng

Wen

2020

J of Chemical Tech & Biotech

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BACKGROUND The performance of a biological aerated filter (BAF) with activated sludge and nut shell activated carbon was evaluated for the advanced treatment of intractable refinery wastewater. Bioaugmenting the BAF with Pseudomonas sp. FS‐01 and Bacillus sp. FS‐02 and the microbial community structure between the upgrade system and the original system were also studied. RESULTS During the steady state of the BAF, the influent chemical oxygen demand (COD) was in the range 80–128 mg L−1, and ammonia nitrogen (NH4+‐N) was in the range 15–20 mg L−1. The BAF with activated carbon from nut shells as a supporting material can remove over 32% of influent COD and 95% of NH4+‐N. On bioaugmentation, the average effluent COD and NH4+‐N concentrations were 31.8 and 0.4 mg L−1, respectively. The predominant genera in BAF1 were Nitrospira, an unranked member of the Anaerolineaceae and an unclassified member of the Rhizobiales, while the dominant genera in BAF2 were Pseudomonas, Bacillus and an unranked member of the Anaerolineaceae. CONCLUSIONS The coconut shell activated carbon has outstanding properties for removing COD and NH4+‐N, along with high shock loading resistance. Bioaugmentation can improve the COD remove efficiency by 35% in relation to only adding sludge. Microbial diversity analysis indicated that bioaugmentation accelerated the transformation of the bacterial community structure, quickly becoming dominant strains. This bioaugmented process may be a promising alternative technology for the treatment of refractory wastewater. © 2019 Society of Chemical Industry

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“…Clearly, more efficient, robust, sustainable, and economically competitive solutions for the utilization of valuable resources in digested piggery wastewater are needed. Several technologies have been recently developed for treating digested piggery wastewater, such as an intermittently aerated sequencing batch reactor (IASBR), membrane bioreactor (MBR) and biofilters [5][6][7]. However, the main drawbacks with a practical implementation of these technologies are that they consume large amount of energy, which is mainly for aeration, and the valuable nutrient nitrogen (N) and phosphorus (P) are not recovered.…”

Section: Introductionmentioning

confidence: 99%

Nutrient Removal by Suspended and Biofilm Microalgae for Treating the Wastewater of Agro-Industrial Pig Farm

Khiewwijit

Panyaping

Wongpankamol

2018

Walailak J Sci & Tech

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In this study, laboratory-scale suspended and biofilm microalgal systems were constructed under outdoor climatic conditions in Northern Thailand to compare their performances on nutrient nitrogen (N) and phosphorus (P) removal and biomass production from anaerobically digested piggery wastewater. At a cultivation time of 14 days, the results showed that removal efficiencies of nitrogen and phosphorus from digested piggery wastewater in biofilm microalgal system were higher than suspended microalgal system. Biofilm system removed on average of 96 % of TKN-N and 92 % of PO43--P, whereas suspended system removed on average of 84 % of TKN-N and 87 % of PO43--P. Average biomass production achieved 1.17 g dry weight/day for suspended system, while a lower production of 0.78 g dry weight/day was found for biofilm system in which possibly due to a long harvesting frequency of every 2-weeks. Meanwhile, biofilm system has an advantage over suspended system with respect to simple biomass harvesting. This combination of findings demonstrates that biofilm microalgal system is more suitable for removing N and P from digested piggery wastewater than suspended microalgal system. Besides, biomass production in biofilm microalgal system could be further optimized by shorter harvesting frequency and partially harvesting of the biofilm biomass. This study indicates that microalgae offer the potential to recover valuable nutrient resources from piggery wastewater and use biomass for sustainable energy production or other high-value products, which will improve sustainability of agro-industrial wastewater management in the future.

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Comparative experiment on treating digested piggery wastewater with a biofilm MBR and conventional MBR: simultaneous removal of nitrogen and antibiotics

Cited by 48 publications

References 32 publications

Bioprocessing for elimination antibiotics and hormones from swine wastewater

Bioprocessing for elimination antibiotics and hormones from swine wastewater

A bioaugmentation agent allowing the advanced treatment of refractory refinery wastewater in a biological aerated filter and analysis of its microbial community

Nutrient Removal by Suspended and Biofilm Microalgae for Treating the Wastewater of Agro-Industrial Pig Farm

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