Anammox biomass carrying efficiency of polyethylene non-woven sheets as a carrier material. Issue 19 (2nd October 2018)

• Record Type: Journal Article
• Authors: Cho, Sunja; Jung, Minki; Ju, Dongjin; Lee, Young-Hee; Cho, Kuk; Okabe, Satoshi
• Is Part Of: Environmental technology. Volume 39:Issue 19(2018)
• Page Start: 2503
• Page End: 2510
• Publication Date: 2018-10-02
• Subjects: Anammox -- biomass carrier -- fabric structure -- polyethylene -- non-woven fabric sheet; Environmental engineering -- Periodicals; Environmental protection -- Periodicals; 628.05
• DOI: 10.1080/09593330.2017.1357760
• Languages: English
• ISSNs: 0959-3330

Abstract

ABSTRACT: To access the effects of the surface modification and fabric structure of polyethylene (PE) non-woven fabric sheets on retaining the attachment efficiency of anammox biomass, three different non-woven sheets were prepared and inserted in an anammox reactor. The hydrophobic surface modification with 10% KMnO4 and gelatin did not improve the attachment efficiency of the anammox biomass on the surface of the PE non-woven fibers. Densely packed PE-755 having the highest specific surface area to volume ratio (SA/V) (755) retained 221.4 mg biomass per unit sheet, whereas PE-181 having the lowest SA/V (181) retained only 66.4 mg biomass per unit. Accordingly, the volumetric anammox activity of non-woven sheet PE-755 was the highest among the three PE non-woven sheets because of the strong positive relationship between the specific anammox activity and biomass amount ( R = 0.835, P < .01). The specific surface area to volume ratio (cm 2 cm −3 ) as well as the bulk density should be considered as important parameters for the selection of non-woven biocarriers for anammox biomass.