Research Trends and Results

Demonstration Study of Breakthrough by Dynamic Approachin Sewage High Technology Project (B-DASH Project)
Water Quality Control Department
Wastewater and Sludge Management Division
Head HARADA Ichiro Senior Researcher YAMASHITA Hiromasa
Researcher FUJII Tsuyako Researcher IGUCHI Hitoshi(Keywords) Sewerage, Energy saving, Resource saving, Cost reduction, Greenhouse gas, Innovative technology
1.Introduction
For global warming and tight resources / energy
demand and supply, conversion to a sound material-cycle
society and formulation of low carbon society is desired.
Sewerage is necessary social capital for people's life
such as life environment improvement and water quality
control in public water body, and these potential
applications such as energy use of biosolids andwastewater heat and recycle of phosphorous resource use
are needed.
Though new technologies have been developed in accord
with those societal demands and government needs,
many sewerage works administrators are in a carefulmanner to adopt them because there are few actual
implementation results. Therefore Ministry of Land,
Infrastructure, Transport and Tourism (MLIT) Sewerageand Wastewater Management Department has started
Breakthrough by Dynamic Approach in Sewage HighTechnology Project (B-DASH Project) since 2011, andThe National Institute for Land and InfrastructureManagement (NILIM) Sewerage Research Department
has been an implementing agency for the demonstration
study. The purpose are achieving cost reduction andcreation of renewable energy in sewerage work throughthe demonstration and widespread use of excellent
innovative technology and supporting overseas
operations of water business by Japanese companies.
2.Outline of B-DASH Project
The outline of B-DASH Project is as follows,ⅰ) MLIT adopt innovative technology through thepublic competition according to the expert’s judgment.
ⅱ) Research organization assigned by NILIM contract
install a full-scale plant in a sewage treatment plant todemonstrate cost reduction and greenhouse gas emissions
reduction effect.
ⅲ) NILIM establish guideline for installation of thosetechnology based on the demonstration results.
Experts’ evaluation and advice were utilized through thestudy progress, results integration and guideline
establishment.
Two research projects, a technology system of water
treatment, biogas recovery and generation and atechnology system of biogas recovery and refinement, areadopted in 2011. The demonstration study has continued
in 2012 to demonstrate the effects and establish theguideline. Outline of the demonstration plant is shown in

Fig 1 and 2.
Five research projects, biosolids fuel technology, raw
sewage heat recycle technology, removal technology ofnitrogen and removal and/or recycle technology ofphosphorous that come from sludge treatment process
have been implemented.
3.Future Development
NILIM will continue to play a leading role for thedemonstration studies, to establish a guideline for sewage
works administrators to consider installation ofinnovative technology based on the study results and toenhance implementation of those technologies widely.

Fig. 1. Demonstration plant (Demonstration study for anenergy management system using intensive solid-liquid
separation technology)

Fig. 2. Demonstration plant (Kobe, Higashinada innovative
biogas production system)