Overview of e-water and e-water Ⅱ
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1 Japan Water Research Center 10, April, 2008 Welcome to Japan Water Research Center Overview of e-water and e-water Ⅱ ~ Research on Water purification systems ~ Keiichi Hara
2 R&D Projects on Purification Technology Term Project Name Themes MAC21 Pilot Plant for MF / UF Membrane Advanced- MAC ACT21 Pilot Plant for NF Membrane R&D on High-efficiency Purification Technology e-water R&D on Sustainable Purification Technology e-water II R&D on Establishment of Advanced Purification Technology
3 Scheme of R & D Ministry of Health, Labour and Welfare Japan Water Research Center Private Companies Scholars Water Supply Utilities 3
4 The number of WPP using membrane filtration Number of Water Purification Plants Number of Purification Plant using Membrane Filtration Total Water Treatment Capacity Total treatment Capacity (1,000m 3 /day) MAC21 Advanced MAC21 ACT21 e-water e-waterⅡ 4
5 Overview of e-water Project
6 What is e- Water Project? R&D on Environmental,Ecological,Energysaving,Economical Purification Technology Research Period: fiscal Participants:Scholars,Water Supply Utilities, Private Companies Direct budget: 6 million U.S. dollar(except personnel expenses) 6
7 Technology Development for Large-Scale Membrane Filtration Establishment of membrane filtration system in Large-scale (100,000m 3 /day) water facilities Quality control of membrane module and membrane filtration systems On-line and on-site chemical cleaning of membrane module 7
8 Japan s Largest MF Membrane Plant (80,000m 3 /day) Kinuta+Kinutashimo Water Purification Plant: Tokyo Indicator JWRC standard membrane be used 8
9 Research for UV disinfection system Planning practical use of ultraviolet as one of the measures against cryptosporidium Making of a ultraviolet disinfection guideline UV disinfection equipment (20,000m 3 /day) Kanisawa Water Purification Plant: Hachinohe 9
10 Overview of e-water Ⅱ Project 10
11 What is e- WaterⅡ Project? R&D on Establishing Advanced Purification Technology for Safe and Palatable Water (Next e-water e-waterⅡ) Research Period: fiscal Budget: MHLW, and the ante of participated private companies Direct budget: 4.8 million U.S. dollar(except personnel expenses) Participating units:scholars:18; Water Supply Utilities: 25; Private Companies: 32 Number of Researchers: about
12 Research Themes of e-water II Establishing advanced purification technology for safe and palatable water Theme 1 Suitable purification system in accordance with raw water conditions Theme 2 Effective measures against odor-causing compounds aiming at safe and palatable water 12
13 e-water II : Theme 1 Categorizing treatment systems with raw water types and deciding the level of desirable purified water quality Analysis and evaluation of raw water quality The functional evaluation of each purification unit in water quality Establishing method of Life Cycle Assessment (LCA) 13
14 Experimental Plant Membrane Filtration Coagulation-Sedimentation
15 The relationship of coagulant and pretreatment processes with membrane fouling The iron flocculant is gradual in flux decline and superior to aluminum flocculant. Filtration flux: 3 m 3 /m 2 /day Filtration flux (m3/m2/day,100kpa,25 Dosing rate of flocculant :20 mg/l ph: 6.8 Flash mixing strength (G value): 320/s Coagulation/sedimentation/ membrane Coagulation/sand filtration/membrane Coagulation/sand filtration/membrane Coagulation/sedimentation/ membrane 15
16 A method of selecting optimum water purification system Matrix of selecting turbidity removal process Treated water Drinking water standards Level 1 Level 2 Law water Under 2 degree Under 0.1 degree Under 0.01 degree Low Under 1 degree - (Only disinfection) Coagulation+Rapid filtration Membrane filtration Middle 1~5 degree Coagulation+Rapid filtration Coagulation+Rapid filtration Membrane filtration High 5~800 degree Coagulation- Sedimentation+Rapi d filtration Kaolin turbidity 0.8 degree 1NTU Coagulation- Sedimentation+Rapi d filtration Coagulation- Sedimentation+ Membrane filtration or Coagulation+Prefiltration+ Membrane filtration 16
17 Water quality distribution based on principal component analysis and cluster analysis 2nd Principal component point ranking (characterization of groundwater and other water:14%) Cluster1:low pollution n= Cluster2 :aver age -2 Surface water (advanced treatment:ozonation+granular activated carbon) Surface water (advan ced treatment: granular activated carbon Surface water (advanced treatment:bio treatment) Surface water (no advanced treatment) Groundwater/spring water n=16 Definition of advanced treatment:ozonation or granular activated carbon or biological treatment Cluster3:moderate pollution n=46 Total number of data n=242 Cluster4:severe pollution 1st Principal component point ranking (turbidity/organic matter contamination:50%) n=4 17
18 Scope of Research on LCA The scope includes the water purification structures, and the discharging structures, Also included buildings, mechanical equipment and electric equipment. Water Purification Plant Rapid sand filtration Advanced treatment Water intake facilities Raw water conveying facilities Water receiving basin Disinfection facilities Clean water reservoir Treated water conveying facilities Distribution system Membrane filtration 18
19 Results of Research LC-CO 2 emissions Rapid Sand Filtration Ozonation Processes Activated carbon adsorption Membrane filtration LC-CO 2 (10 6 kg-co 2 /58 years Construction Operation Reconstruction Demolition &Disposal 19
20 e-water II : Theme 2 Simulation by means of water quality prediction models Implementing online observation experiments using a VOC (Volatile Organic Compound) monitoring system 20
21 Odor-Causing Compounds Detection Equipment (VOC Monitoring System) Sampling Apparatus Gas Chromatography 21
22 Chromatogram of VOC Meter Each component separated by GC VOCs of a low concentration down to several micrograms per liter can be measured using this system
23 Thank you for your attention. Japan Water Research Center (JWRC) 23
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