Inorganic fouling of an anaerobic membrane bioreactor treating leachate from the organic fraction of municipal solid waste (OFMSW) and a polishing aerobic membrane bioreactor

Bioresource Technology
Antoine P Trzcinski, D C Stuckey

Abstract

The treatment of leachate (Average TCOD=11.97 g/L, 14.4% soluble) from the organic fraction of municipal solid waste was investigated using a Submerged Anaerobic Membrane BioReactor (SAMBR), followed by an aerobic membrane bioreactor (AMBR) to polish this effluent. This paper investigated the exact nature and composition of the inorganic precipitate in each of the reactors in the process. The flux decreased due to precipitation of calcium as monohydrocalcite (CaCO3·H2O) containing traces of metals onto the SAMBR membrane because of high CO2 partial pressures. Precipitation of calcium in the AMBR was also observed due to a higher pH. In this case, phosphorus also precipitated with calcium in two different phases: the background layer contained calcium, oxygen, carbon and small amounts of phosphorus (2-6.7%), while flakes containing calcium, oxygen and higher amounts of phosphorus (10-17%) were probably hydroxyapatite (Ca5(PO4)3OH).

References

Sep 19, 1997·Journal of Biomedical Materials Research·A ItoT Tateishi
Jan 17, 2002·Water Research·I StratfulJ N Lester
Oct 31, 2002·Water Research·James D Doyle, Simon A Parsons
Nov 18, 2005·Water Research·Yi-Pin Lin, Philip C Singer
Jan 9, 2007·Journal of Hazardous Materials·Daekeun KimSang-Ill Lee
Mar 22, 2008·Chemosphere·María Teresa González-MuñozJosé María Arias
Mar 20, 1996·Biotechnology and Bioengineering·K Brindle, T Stephenson
Oct 22, 2009·Water Science and Technology : a Journal of the International Association on Water Pollution Research·A P Trzcinski, D C Stuckey
Aug 7, 2010·Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research·Oren E MeironAmir Sagi
May 28, 2011·Water Research·Mañas AngelaSpérandio Mathieu
Jul 27, 2012·Journal of Colloid and Interface Science·Shintaro Yagi, Keisuke Fukushi
Apr 11, 2014·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Luciano Dias XavierIsaac Volschan Junior
Jun 17, 2015·Chemosphere·Hugo R SindelarTreavor H Boyer

❮ Previous
Next ❯

Related Concepts

Related Feeds

Biofilm & Infectious Disease

Biofilm formation is a key virulence factor for a wide range of microorganisms that cause chronic infections.Here is the latest research on biofilm and infectious diseases.

Bioreactors (ASM)

Bioreactors are important devices or systems that utilize living cells or enzymes for a chemical process. These devices carefully control and monitor the environment factors such as pH, nutrients level, and temperature, which can affect the yield in a given process. Discover the latest research here.

Biofuels (ASM)

Biofuels are produced through contemporary processes from biomass rather than geological processes involved in fossil fuel formation. Examples include biodiesel, green diesel, biogas, etc. Discover the latest research on biofuels in this feed.