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首页> 外文期刊>World review of science, technology and sustainable development >Simultaneous electrocoagulation of dam water and production of hydrogen
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Simultaneous electrocoagulation of dam water and production of hydrogen

机译：大坝水同时电凝和制氢

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摘要

The aim of this project was to design, build, and test a novel electrolyser for the simultaneous electrocoagulation of dam surface water and production of hydrogen. Costs were reduced by using stainless steel (SS) and aluminium (Al) electrodes. However, operating the electrolyser with SS as the anodic material and Al as the cathodic material released up to 5.2 mg/L of chromium into the treated water. To prevent chromium release the SS anode was replaced with an Al anode, which yielded an average hydrogen production efficiency of 35.3% and an average hydrogen purity of 92.6%. In a novel scheme, the reactor simultaneously produced cathodic hydrogen and electrocoagulated surface water, which removed colour, turbidity, hardness, chemical oxygen demand (COD), nitrates, nitrites, ammonia nitrogen, and total coliforms. There are several advantages to using this system instead of the traditionally used proton exchange membrane (PEM) electrolyser: a) surface water can be used without pretreatment; b) a membrane is not required for gas separation; c) hydrogen production and surface water treatment can be conducted simultaneously; d) the reactor can be coupled directly to a solar energy system.
机译：该项目的目的是设计，建造和测试新型电解器，用于同时电凝结大坝地表水和产生氢气。通过使用不锈钢（SS）和铝（Al）电极降低了成本。但是，使用SS作为阳极材料和Al作为阴极材料运行电解槽会向处理后的水中释放高达5.2 mg / L的铬。为防止铬释放，用Al阳极代替SS阳极，产生的平均氢气产生效率为35.3％，平均氢气纯度为92.6％。在一个新颖的方案中，反应器同时产生阴极氢和电凝表面水，去除了颜色，浊度，硬度，化学需氧量（COD），硝酸盐，亚硝酸盐，氨氮和总大肠菌群。使用该系统代替传统使用的质子交换膜（PEM）电解器有几个优点：a）无需预处理即可使用地表水； b）气体分离不需要膜； c）制氢和地表水处理可以同时进行； d）反应堆可以直接耦合到太阳能系统。

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