jan 30, 2015 - caltech-kohler solar-power pv wet electrolysis cell (pwec) toilet manufactured in...
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The Caltech-‐Kohler Solar Toilet Manufactured in China in a Joint-‐Venture Effort Involving CIES1, JIEI2,
Tsinghua University3, & Caltech4
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1CHINA INTERNATIONAL ENVIRONMENTAL SERVICES CO.,LTD(CIES) 2JIANGSU INSTITUTE FOR ENVIRONMENTAL INDUSTRY (JIEI)
3TSINGHUA UNIVERSITY, BEIJING (TU) 4CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH)
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Treatment Side Flow Diagram
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Ir0.7Ta0.3Oy / Bi0.3Ti0.7Ox Bilayer Electrodes
Thermal Diffusion of Metal Ions through Hetero-juctions
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Electrochemical Wastewater Treatment
t = 0 m
t = 24 m t = 77 m
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Color Changes & Total Coliform DisinfecYon vs. Time
0 m 15 m 30 m 60 m 120 m 180 m 240 m
0 min 30 min 100 min 180 min
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Enterococcus
DisinfecYon vs. Time
E. coli Phage MS2
Adenovirus rAd5
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Kohler-‐Caltech Single Family Unit
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Manufacturing Complex in Yixing, China
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Specifica(ons 4 unisex water closets + 3 urinals
Dimensions
Length 6055 mm
Width 2435 mm
Height 2840 mm
Equipment Weight 2000 kg Opera(ng Power 550 W
Modular Toilet Systems – First InstallaYon on the Campus of Tsinghua University Beijing
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1. Container base on a
padded base 2. Install 4
support columns 3. Install toilet container roof
4. Install wallboard in sequence by serial number
5. Wallboard installaYon completed
Field Assembly of Modular IKEA-‐Like Component Design Reduces TransportaYon Costs
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Breakdown, Packing & Shipping
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系统名称 部件名称 描述 数量
外观 箱体 彩钢板 1台
卫生间 卫生洁具 带洗手省水坐便器 5只
小便斗 5只
水处理室 处理槽
收集水箱 1只
厌氧反应槽 1只
电极反应器 4只
高位水箱 1只
电极 4套
供电系统 太阳能板 300W 13块
蓄电池 24V 300HA 2台
电控系统 全自动运行 1套
五厕位配置清单
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Westerhoff et al., Environ. Sci. Technol., 2015, CharacterizaYon, Recovery OpportuniYes, and ValuaYon of Metals in Municipal Sludges from U.S. Wastewater Treatment Plants NaYonwide
Municipal WWT Sludge 1.0 million people = $2.6M/yr in Au & Ag