Anaerobic Digestion of Sewage Sludge by Membrane Separated Bioreactor

Autor:	Hidenori Aya, Katsuyuki Namiki
Rok vydání:	1992
Předmět:	Anaerobic digestion Chromatography Chemistry Ultrafiltration Bioreactor Sludge bulking Sewage treatment Sludge Mixed liquor suspended solids Membrane technology
Zdroj:	Journal of Japan Society on Water Environment. 15:187-194
ISSN:	1881-3690 0916-8958
DOI:	10.2965/jswe.15.187
Popis:	Raw sludge from a wastewater treatment plant was anaerobically digested by utilizing ultrafiltration (UF) membrane separation in laboratory-scale experiments. Biomass, undigested solids and high molecular weight organic matters were accumulated in the reactor until they were digested to low molecular weight substances. COD of permeate from the UF membrane had been less than 300mg·l-1 during more than 100 days of operation. MLSS concentration in the reactor varied from 10,000 mg·l-1 depending on VSS loading rate and temperature.Organic substances in the sludge were almost all converted into biogas. Inorganic solids in the sludge were dissolved into liquid phase through a biological reaction and then passed through the membrane preventing the accumulation of solids in the reactor.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c0f0104cf6aeac3407acb87e0273305f https://doi.org/10.2965/jswe.15.187 Zobrazit plný text záznamu