通过上流式厌氧污泥床（UASB）系统处理甘蔗废水制氢

发布时间：2022-02-17 07:02

　　上流式厌氧污泥床（UASB）是一种生物反应器装置,可以利用有机原料和富含碳水化合物的基质产生沼气。UASB反应器已广泛应用于各种底物的制氢。众所周知,它的能源需求低,能够产生富含甲烷的沼气作为可回收能源,污泥产量低。它也成功地应用于处理各种类型的废水。UASB被称为最健壮的高速厌氧反应器,目前已广泛安装了近1000个反应器。UASB是一种操作稳定、过程高效的反应堆。甘蔗废水已被用作制氢的底物。研究的主要参数包括产氢量、pH值、水力停留时间（HRT）、COD和底物浓度。底物浓度设计分别为1.33gr/L、1.78gr/L、2.22gr/L、4gr/L和8gr/L。HRT设计为下降模式,分别为24小时、12小时、7小时和4小时。在79天的运行时间内,总产气量可达到8 m3。氢产率随底物浓度的增加而增加。但是,本研究的产氢量低于其他研究。运行期间COD去除率最低为0.78%,最高为90.25%。对UASB处理单糖、复糖和多糖进行了比较研究。氢、二氧化碳和甲烷是主要由UASB反应器产生的气体类型,可以是单级的,也可以是两级的。乙酸、丁酸、丙酸、异戊酸和戊酸是可溶性代谢产物,主要由单糖（单糖）、... 

【文章来源】：东北林业大学黑龙江省211工程院校教育部直属院校

【文章页数】：88 页

【学位级别】：硕士

【文章目录】：
Acknowledgements
Dedications
摘要
Abstract
1. Introduction
    1
        1.1 Research Background
        1.2 Hydrogen
            1.2.1 Hydrogen in the transport sector
            1.2.2 Hydrogen as electricity sources
        1.3 Anaerobic Digestion
            1.3.1 Conditions and variables influencing anaerobic digestion
            1.3.2 Advantages and disadvantages of anaerobic digestion
        1.4 Hydrogen production by anaerobic fermentation
        1.5 Basic types of reactors used in the anaerobic process
        1.6 Brief introduction of UASB
            1.6.1 Up-flow anaerobic sludge blanket
            1.6.2 UASB reactor size and shape
            1.6.3 The working principle of UASB
            1.6.4 Advantages and disadvantages of using UASB reactor for wastewater tretament
            1.6.5 Parameters influencing the effieciency of UASB reactors
        1.7 Sugarcane
            1.7.1 Manufacturing process
            1.7.2 Derivation of sugarcane wastewater
            1.7.3 The characteristic of sugarcane wastewater and its effect on the environment
        1.8 Current research and trend development
            1.8.1 Current research situation in China
            1.8.2 Current research situation in foreign countries
        1.9 Purpose of the study
    2 Research questions
    3 Summary of this chapter
2. Materials and method
    2.1 Experimental device
    2.2 Preparation of sludge inoculation
    2.3 Experimental substrate
    2.4 Parameter measurement
        2.4.1 Gas yields
        2.4.2 pH of influent and effluent
        2.4.3 Determination of COD
        2.4.4 Data analysis
        2.4.5 Soluble metabolic products and hydrogen content
    2.5 Technology roadmap
    2.6 Summary of this chapter
3. Results and discussion
    3.1 Gas production generated during operation time
    3.2 Changes in pH
    3.3 Changes in substrate concentration
    3.4 Changes in COD
    3.5 Effects of the change substrate concentration to pH
        3.5.1 Substrate concentration corresponding to different pH
        3.5.2 Substrate concentrations corresponding to COD
    3.6 Soluble metabolic products (Volatile Fatty Acids) in various studies
        3.6.1 Soluble metabolic products generated in some studies
    3.7 Hydrogen production and content in some studies
    3.8 Summary of this chapter
Conclusion
References
Paper published in the period of master education
致谢
个人简历



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