1. Canada Mortgage, Housing Corporation (CMHC) (2008) About your house: your septic system. CMHC Document no: 62795, Ontario, Canada. http://www.cmhc-schl.gc.ca/en/co/maho/gemare/gemare_009.cfm . Accessed 20 Mar 2012
2. U.S. Environmental Protection Agency (U.S. EPA) (2005) Handbook for managing onsite and clustered (decentralized) wastewater treatment systems. Office of Water, EPA Document No: 832-B-05-001. Cincinnati, OH. http://nepis.epa.gov/Adobe/PDF/20017K2G.pdf . Accessed 20 Mar 2012
3. U.S. Environmental Protection Agency (U.S. EPA) (2003) Voluntary national guidelines for management of onsite and clustered (decentralized) wastewater treatment systems. Office of Water, EPA Document No: 832-B-03-001. Cincinnati, OH. http://water.epa.gov/scitech/wastetech/upload/septic_guidelines.pdf . Accessed 20 Mar 2012
4. Appels L, Baeyens J, Degreve J, Dewil R (2008) Principles and potential of the anaerobic digestion of waste-activated sludge. Prog Energy Combust Sci 34(6):755–781
5. Pavlostathis SG, Giraldo-Gomez E (1991) Kinetics of anaerobic treatment. Water Sci Technol 24(8):35–39