AIST REPORT 2012

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Sand filtrationReturned water for reuseWater quality testWater quality testResearch equipment cooling waterExperimental cooling wastewater (recycled water)General research wastewater (tertiary washing water, etc.)Laboratory table (sink)Public water supplyGeneral service waterExcess discharged to public sewerGeneral research wastewater treatmentSecondary treatmentPrimary treatmentIon exchangeCatalytic oxidationCoagulationSand filtrationActivated charcoal adsorptionMercury chelateHeavy metal chelateWater recycling for reuse at AIST TsukubaLaboratories in each siteResearch wastewater treatment plantWater reused1,8611,8281,8111,155Change in the amount of water received and water reused05001,0001,5002,0001,000 m31,5271,4071,3121,094FY20111,223FY2010FY2009FY2008FY20071,870Water receivedNumber of recycled items0100200300400500600700800FY2011FY2010FY2009FY2008FY2007152755280173141496171831731216414420813465453921513367532405710 4984396343133OA equipmentOffice equipmentMeasuring instrumentLaboratory equipmentOthersSince 2005, the Goods Recycling System has been operated to exchange information on necessary and unnecessary research equipment, OA equipment, furniture, consumables etc. using the intranet promoting recycling within AIST. Items that cannot be recycled within AIST are transferred to external parties for free or for a fee. Through these activities, we promote waste reduction and reuse.Effective Use of ResourcesWe promote the reuse of equipment not in useAt AIST Tsukuba and AIST Chubu, for the effective use of water resources, research wastewater is reused through neutralization and reduction treatments. The amount of water received in FY2011 was 10.5% less than in the previous fiscal year. The amount of water reused at AIST Tsukuba decreased by about 38% over the previous fiscal year due to the decreased level of research activities as a result of the Great East Japan Earthquake.Conservation of Water ResourcesWe strive to use water resources effectively through reuse of wastewaterEnvironmental Report|57

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