Immobilization of ammonia-oxidizing bacteria by polyvinyl alcohol and sodium alginate

Dong, Yong; Zhang, Yanqiu; Tu, Baojun

doi:10.1016/j.bjm.2017.02.001

Cited by 47 publications

(31 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different biomass immobilization techniques are examined for the effectiveness of wastewater treatment and the properties of immobilized material [10,12,13,18,19]. In the present study anammox biomass was immobilized in sodium alginate, which turned out to be a non-expensive and simple method.…”

Section: Discussionmentioning

confidence: 99%

“…Many of authors have demonstrated that alginates may be used as a support media for effective cells immobilisation [12][13][15][16][17][18]. Several authors focused on activated sludge immobilisation in sodium alginate [12,13,19].…”

Section: Introductionmentioning

confidence: 99%

“…Several authors focused on activated sludge immobilisation in sodium alginate [12,13,19]. Procedure of immobilization in sodium alginate is easy and do not cause significant changes in physicochemical conditions for immobilized microorganisms.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Immobilization of Anammox biomass in sodium alginate

2018

View full text Add to dashboard Cite

Abstract. Anaerobic ammonium oxidation (anammox) is a process of ammonium and nitrite conversion into nitrogen gas. Nowadays, anammox is applied into many wastewater treatment plants worldwide. However, anammox bacteria are characterized by a slow growth rate, which may cause problems in maintaining the biomass in the system. The promising technique which can help to maintain the biomass in the reactor and effectively prevent loss of anammox bacteria from a system is immobilization. Selection and optimization of the appropriate immobilization technique for investigated biomass is crucial for conducting an effective process. One of the ways for bacteria immobilization is gel entrapment. The main goal of the study was to test sodium alginate as an immobilization medium for anammox biomass. In the present study procedure of immobilization in sodium alginate was optimised, then the mechanical and chemical properties of the obtained pellets were investigated. Series of batch experiments revealed that immobilized anammox biomass was able to remove ammonia and nitrite nitrogen effectively. The calculated specific anammox activity (SAA) for immobilized anammox biomass was 0.18 g N·gVSS -1 ·d -1 , while for nonimmobilized biomass was 0.36 g N·gVSS -1 ·d -1 .

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Immobilization of Anammox biomass in sodium alginate

2018

View full text Add to dashboard Cite

show abstract

“…The cross‐linking during immobilization was done using both boric acid and calcium chloride, only calcium chloride . Some literatures studies use sodium nitrate and calcium chloride for cross‐linking but the significance of each method of cross‐linking and the diameter of PVA–SA gels used are unclear.…”

Section: Recent Developments In Anammox Immobilizationmentioning

confidence: 99%

“…The cross-linking during immobilization was done using both boric acid and calcium chloride, 48 only calcium chloride. 35,38,56 Some literatures studies use sodium nitrate and calcium chloride for cross-linking 28 but the significance of each method of cross-linking and the diameter of PVA-SA gels used are unclear. Dong et al 56 experimented with varying PVA, SA and calcium chloride concentration and optimized concentrations of 12% PVA, 1.1% SA and 1% calcium chloride showed better transparency and stability.…”

Section: Polyvinyl Alcohol-sodium Alginate (Pva-sa)mentioning

confidence: 99%

Research advances and challenges in anammox immobilization for autotrophic nitrogen removal

Manonmani

Joseph

2018

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

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

show abstract

Emergence of nanomaterials as potential immobilization supports for whole cell biocatalysts and cell toxicity effects

Manaf

Fuzi

Manas

et al. 2020

Biotechnology and Applied Biochemistry

View full text Add to dashboard Cite

The traditional approach of fermentation by a free cell system has limitations of low productivity and product separation that need to be addressed for production enhancement and cost effectiveness. One of potential methods to solve the problems is cell immobilization. Microbial cell immobilization allows more efficient up-scaling by reducing the nonproductive growth phase, improving product yield and simplifying product separation. Furthermore, the emergence of nanomaterials such as carbon nanotubes, graphene, and metal-based nanomaterials with excellent functional properties provides novel supports for cell immobilization. Nanomaterials have catalytic properties that can provide specific binding site with targeted cells. However, the toxicity of nanomaterials towards cells has hampered its application as it affects the biological system of the cells, which cannot be neglected in any way. This gray area in immobilization is an important concern that needs to be addressed and understood by researchers. This review paper discusses an overview of nanomaterials used for cell immobilization with special focus on its toxicological challenges and how by understanding physicochemical properties of nanomaterials could influence the toxicity and biocompatibility of the cells.

show abstract

Immobilization of ammonia-oxidizing bacteria by polyvinyl alcohol and sodium alginate

Cited by 47 publications

References 8 publications

Immobilization of Anammox biomass in sodium alginate

Immobilization of Anammox biomass in sodium alginate

Research advances and challenges in anammox immobilization for autotrophic nitrogen removal

Emergence of nanomaterials as potential immobilization supports for whole cell biocatalysts and cell toxicity effects

Contact Info

Product

Resources

About