Study On The System Of Photosynthetic Hydrogen Production By Solar Energy And Its Spectrum Co-Operate Character

This paper is a series research supported by national "863 " plan (No.2004AA515010) and the National Natural Science Foundation (No.50476087).People confront two series problems of energy shortage and environment pollution nowadays. It's urgent to search for a new energy, sustainable and cleanable. Hydrogen is thought to be the best substitute for fossil energy as it's high energy density, renewable and burning without pollution. Up to now, there are two main Hydrogen production methods—chemical and biological methods. Although the chemical method was mature and regarded as the main way of industrial production, its reaction conditions were very strict, traditional energy was consumed, also the environment was polluted during the course of production, while by biological way, Hydrogen is produced in the course of metabolization of bacteria with the mild production conditions.Because the raw material for Hydrogen production are kinds of organic waste matters (such as organic waster water, manure and urban sewage ), so, at the time of Hydrogen production, the environment is harnessed.Being one of biological hydrogen production, photosynthetic organisma decompose organic matters completely to produce large amount of hydrogen without oxygen release which prohibits the operation of hydrogen production enzyme, therefore photosynthetic hydrogen production is one of the most potential way to produce hydrogen. But the low light conversion ratio and high cost are two barriers to the development and application of biological hydrogen production technology. Instead of energy-consumed human light resource, using sunlight, this study makes the photosynthetic hydrogen production system operate smoothly without large energy consumed, thus not only energy is saved, but also the cost is lowered greatly. This paper studies the co-operation spectrum characteristics of high efficient hydrogen production bacteria , which were selected in the lab, then adopts filtrating technology to enhance the efficient light density, by which the light conversion ratio is improved sharply. Meanwhile photosynthetic hydrogen production conditions are studied, whose raw material is manure。...