Up-flow anaerobic sediment trapped (UAST) reactor as a new configuration for the enrichment of anammox bacteria from marine sediments

Toro, E. Emilia Rios-Del; López-Lozano, Nguyen E.; Cervantes, Francisco J.

doi:10.1016/j.biortech.2017.04.087

Cited by 38 publications

(10 citation statements)

References 31 publications

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“…Ca. Scalindua enrichment culture adapted quickly (~35 days) to salinity (~1.2%) and organics (acetate 2mM) and showed stable operation with >90% N-removal efficiency and NRR of 0.3 kg-N m -3 d -1 , which was comparable to previously reported (0.07 to 10 kg-N m -3 d -1 ) NRRs (Kawagoshi et al, 2009;Toro et al, 2017;van de Vossenberg et al, 2008;Yokota et al, 2018). It should be noted that these previous studies used inorganic synthetic seawater prepared using artificial salt compared to real seawater supplemented with organics in the current study.…”

Section: Discussionsupporting

confidence: 84%

“…Marine anammox bacteria are better suited for nitrogen-rich saline wastewater treatment compared to freshwater anammox bacteria due to their intrinsic tolerance to salinity, and they could maintain a stable nitrogen removal performance at a wide range of salt concentration (0-50 g L -1 ) and in response to salinity shock (Wei et al, 2016;Li et al, 2018;). However, they are less studied compared to freshwater anammox bacteria for saline wastewater treatment (Kawagoshi et al, 2009;Toro et al, 2017;van de Vossenberg et al, 2008). Also, these previous studies on marine anammox bacteria were conducted using inorganic artificial seawater medium with salinity of ~3%, and studies on the effect of different saline conditions (1-3% salinity) on nitrogen removal efficiency of marine anammox bacteria are lacking.…”

Section: Introductionmentioning

confidence: 99%

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Application of an enrichment culture of the marine anammox bacterium “Ca. Scalindua sp. AMX11” for nitrogen removal under moderate salinity and in the presence of organic carbon

2020

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Section: Discussionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Application of an enrichment culture of the marine anammox bacterium “Ca. Scalindua sp. AMX11” for nitrogen removal under moderate salinity and in the presence of organic carbon

2020

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“…[45][46][47] Thus, the load and treatment efficiency of the reactor are Due to the unique structure, the IC reactor also has excellent performance under high load. 50) IC reactors can often handle At present, the research hotspots of high-efficiency anaerobic reaction process of high-salt organic wastewater mainly include high-efficiency reactors [53][54][55][56][57][58][59][60][61][62][63][64][65] , bio-enhancement [66][67][68][69][70][71][72][73] , etc.…”

Section: Suspended Sludge Granulation Technologymentioning

confidence: 99%

“…Bio-enhancement includes application research of new biological carriers [66][67][68][69] , selection of inoculated sludge 63,[70][71][72][73] showed that AnBEMR enhanced with a carrier exhibited good processing performance, which was about 5-10% higher TCOD removal rate and about 15% higher methane yield than AnMBR without carrier enhancement. In addition, marine sediment was used to replace traditional activated sludge.…”

Section: Suspended Sludge Granulation Technologymentioning

confidence: 99%

Analysis of Key Technologies for Industrialized Treatment of Fatty Acid High-Salinity Organic Wastewater

Lu¹,

Jeong²,

Yan³

et al. 2020

J Korean Soc Environ Eng

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Objectives : Wastewater produced by fatty acid production contains high concentration of organic substances and high concentration of salts (mainly sodium sulfate), causing great pollution to water resources and environment. The pollution prevention and control of this type of wastewater are very necessary. The key to treating this type of wastewater is to remove salts and COD to achieve harmless treatment. This is a problem in wastewater management that has plagued the industry for a long time. This paper proposed a technique suitable for fatty acid high salinity organic wastewater.Methods : First, the industrial treatment technology of organic wastewater with high salinity was introduced and analyzed. Combined with the principle of industrial wastewater treatment, the process route for the treatment of fatty acid high salinity organic wastewater was analyzed and selected. In addition, the key technology and process for anaerobic desalination and COD removal were analyzed and selected.Results and Discussion : According to the unique nature of this type of wastewater mainly containing sulphate salts and the feasibility of industrial production, a special technology combination was proposed to treat this wastewater at this stage. Since this wastewater has a B/C ratio of 0.4 to 0.45, it is easier to use biological treatment method. Thus, the conventional treatment method is pretreatment + biological treatment. Biological enhancement and reactor process optimization can be studied for better efficiency.Conclusions : Considering the high COD and sulphate concentration characteristics of fatty acid high-salinity organic wastewater, high-efficiency anaerobic biochemical treatment is mainly considered. Combined with modern high-efficiency anaerobic suspended sludge granule technology, it was concluded that pretreatment + high efficiency IC anaerobic + secondary biological treatment can achieve industrialized treatment of such wastewater in a targeted, low-cost and reliable way. In the later stage, bio-enhancement of the anaerobic process as well as structural and process optimization of the reactor can be carried out to obtain better technical and economic results in production practice.

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“…Anammox is a pH dependent process and substrate transfer plays an important role in the retention of anammox biomass. Biomass retention efforts have led to the development of different concepts such as attached growth using different supports, granulation, hybrid reactors, etc. All these methods require a stabilization period and lack the prevention of biomass washout from the reactor system.…”

Section: Recent Developments In Anammox Immobilizationmentioning

confidence: 99%

Research advances and challenges in anammox immobilization for autotrophic nitrogen removal

Manonmani

Joseph

2018

J of Chemical Tech & Biotech

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Application of the anaerobic ammonium oxidation (anammox) process using suspended or attached growth technology has limitations of slow growth rate such as biomass washout, and large footprint. This has led to the development of smaller, compact immobilized systems. In recent years, wastewater treatment using anammox immobilized cells has received much attention due to its advantages of high biomass content, retention of biomass by prevention of washout, good solid–liquid separation and lower toxicity to microorganisms. This article critically reviews the existing literature on autotrophic nitrogen removal using anammox bacteria in its immobilized form. Different methods of using immobilized anammox bacteria were identified. Characteristics of various polymeric gels such as solubility, biodegradability, stability, diffusivity and growth of biomass in the polymeric gel were studied. However, there is insufficient study of disposal methods and costs involved in anammox immobilization to guide future implementation of immobilized anammox technologies for autotrophic nitrogen removal. © 2018 Society of Chemical Industry

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Up-flow anaerobic sediment trapped (UAST) reactor as a new configuration for the enrichment of anammox bacteria from marine sediments

Cited by 38 publications

References 31 publications

Application of an enrichment culture of the marine anammox bacterium “Ca. Scalindua sp. AMX11” for nitrogen removal under moderate salinity and in the presence of organic carbon

Application of an enrichment culture of the marine anammox bacterium “Ca. Scalindua sp. AMX11” for nitrogen removal under moderate salinity and in the presence of organic carbon

Analysis of Key Technologies for Industrialized Treatment of Fatty Acid High-Salinity Organic Wastewater

Research advances and challenges in anammox immobilization for autotrophic nitrogen removal

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