UASB反应器废糖蜜在启动阶段的废水处理和生物制氢  

Wastewater Treatment and Biohydrogen Production in Attached and Suspended-sludge UASB Reactors During the Start-up Period by Malasse

作　　者：肖常泓 刘铭义 张凌星 周宇 李永峰[1] XIAO Chang-hong;LIU Ming-yi;ZHANG Ling-xing;ZHOU Yu;LI Yong-feng(School of Forestry,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]东北林业大学林学院,哈尔滨150040

出　　处：《中国甜菜糖业》2021年第1期31-38,41,共9页China Beet & Sugar

基　　金：国家大学生科研训练计划项目(202010225051)。

摘　　要：在启动阶段,对传统上流式厌氧污泥层反应器(UASB)和改良的UASB反应器去除化学需氧量(COD)和发酵生物制氢进行了研究和比较。改性UASB反应器和常规UASB反应器的最大COD去除率分别为82和68.4%,最大产氢率(HPR)分别为188.99 mmol-h_(2)L^(-1)h(-1)和117.03 mmol-h_(2)L^(-1)h(-1)。除此之外,最大的比氢速率(SHPR)改良UASB45.03更易与H_(2)/g VSS-d6 h的荷尔蒙替代疗法的最大SHPR UASB 30.36时更易与H_(2)/g Vss-d水力停留时间(HRT)8 h。Ethanol-type发酵主要在修改UASB醋酸酸性发酵主要是在传统的UASB。改性的UASB表现出稳定的生物氢生产,并通过保留高数量的生物质来经受冲刷。Conventional up-flow anaerobic sludge blanket(UASB)reactor and modified UASB reactor were studied and compared during the start-up period in the removal of chemical oxygen demand(COD)and fer-mentative biohydrogen production.Maximum COD removal rate of 82 and 68.4%and maximum hydrogen pro-duction rate(HPR)of 188.99 and 117.03mmol-h_(2)L^(-1)h(-1)for modified UASB and conventional UASB reac-tors were observed,respectively.Besides,the maximum specifie hydrogen production rate(SHPR)of modifed UASB was 45.03 mmol H_(2)/g VSS-d at HRT of 6 h while the maximum SHPR of UASB was 30.36 mmol H_(2)/g VSS-d at hydraulic retention time(HRT)of 8 h.Ethanol-type fermentation was predominant in modified UASB while acetic acid-type fermentation was predominant in conventional UASB.Modified UASB showed sta-ble biohydrogen production and managed to with stand the washout by retaining a high amount of biomass.

关 键 词：杂和 生物氢 发酵 洗脱 生物量 

分 类 号：X79[环境科学与工程—环境工程]