The performance of the BioGreen system is also such that it produces a high quality effluent which can be used for irrigation, or discharged to a surface water body in accordance with local regulations. Once operational, a minimum level of operator knowledge is required. Some yearly maintenance and backwashing of the aeration chambers is required. The settling chambers also require pumping out every 5 to 10 years. The units are sold with all internal components installed.
Operating costs are low as the only moving part that requires power is the compressor.
In addition, a minor annual expenditure should be allowed for the above mentioned maintenance. The BioGreen Secondary Wastewater Treatment System is a Japanese technology which has been imported to Canada. There are presently four demonstration units installed in Newfoundland, where research is ongoing to optimize the technology for the Canadian climate and environment. These technological fact sheets are based on the information provided by the same organizations that have conceived and perfected the technologies. The dissemination of this information should by no means be perceived as an Enviro-Access guarantee.