A quantitative analysis method to determine the amount of cellulose fibre in waste sludge. Issue 8 (3rd April 2021)

• Record Type: Journal Article
• Authors: Hashimoto, Kurumi; Kubota, Narumi; Marushima, Toru; Ohno, Masaki; Nakai, Satoshi; Motoshige, Hiroshi; Nishijima, Wataru
• Is Part Of: Environmental technology. Volume 42:Issue 8(2021)
• Page Start: 1225
• Page End: 1235
• Publication Date: 2021-04-03
• Subjects: Cellulose -- fibre -- toilet paper -- quantitative analysis -- waste sludge; Environmental engineering -- Periodicals; Environmental protection -- Periodicals; 628.05
• DOI: 10.1080/09593330.2019.1662097
• Languages: English
• ISSNs: 0959-3330

Abstract

ABSTRACT: A novel quantitative analysis method for cellulose fibre was developed to understand its behaviour in biological wastewater treatment and waste sludge processes. The method developed in this study was designed using Pseudomonas aeruginosa to remove it by dissolving all the organic components except cellulose from the sludge due to needing the solubilisation of bacteria occupied almost of sludge matrix and quantifying the amount of remaining cellulose. The results of this study indicated that a combined treatment process that employed 2, 000 U/L protease, 2 M hydrogen peroxide, and 2 mM potassium hydroxide after pre-treatment for floc dispersion with an ultrasonic treatment at 26 W for 1 min resulted in a solubilisation of 96% of P. aeruginosa without losing the cellulose fibre. When it was applied to the cellulose fibre added in the sludge from a municipal wastewater treatment facility, 99.5% of the cellulose fibre was recovered by using the high-speed centrifuge. GRAPHICAL ABSTRACT: UF0001