This sand filtration system can deliver high-speed filtration at up to 1,000 m/day.
Thanks to continuous washing of the filter material, the filtration exhibits stable performance and is adequate both for advanced treatment of discharged water and for generating fresh water from recycled water.
Denitrification typeNitrate nitrogen is removed by denitrifying bacteria that have adhered to the filter sand. Suspended solids (SS) are removed at the same time as nitrogen.
Dephosphorization typeA continuous-washing design yields more stable dephosphorization processing based on coagulation filtration with an added coagulant.
By taking advantage of the characteristics of step grate sludge incinerators, which require no auxiliary fuel and consume little power, and by optimizing the heat recovery system, we’re able to propose power generation systems that use waste heat from the incineration process in an array of sizes. This TAKUMA technology was adopted for inclusion in the FY2012 B-DASH Project conducted by the Ministry of Land, Infrastructure, Transport and Tourism (Japan).