不同工艺阶段的苎麻废水厌氧消化产沼气研究  

Biogas Fermentation of Ramie Wastewater from Different Process Stages

作　　者：蒋勇 郭清吉 蒋小钰 褚衍生 JIANG Yong;GUO Qing-ji;JIANG Xiao-yu;CHU Yan-sheng(Sichuan Development SINOBE Environmental Science & Technology Co LTD, Chengdu 610094, China)

机构地区：[1]四川发展中恒能环境科技有限公司,成都610094

出　　处：《中国沼气》2018年第6期26-31,共6页China Biogas

摘　　要：文章采用厌氧消化对苎麻废水进行产沼气研究,比较生物酶浸泡废水、烧碱煮炼废水、煮炼后清洗废水3种不同性质的苎麻废水在产沼气规律和能力方面的差异。结果表明,生物酶浸泡废水产气时间最长,可达4天,其余两种废水仅为3天,且生物酶浸泡废水产气率最高,原料产沼气潜力为1.13 mL·mL^(-1)废水,原料产甲烷潜力为0.49 mL·mL^(-1)废水;其COD和BOD5降解率最高,分别为76.3%和82%;其COD产气率和产甲烷率也最高,分别为169.1 mL·g^(-1)和56.9 mL·g^(-1)。煮炼后清洗废水的BOD5产气率和产甲烷率最高,分别为530.4 mL·g^(-1)和56.9mL·g^(-1)。3种废水都可通过厌氧消化去除大部分有机物,减轻后续处理压力,并且生物酶浸泡废水产气率最高,可用于生产沼气,为苎麻加工提供绿色能源。In this paper,the production of biogas from ramie wastewater was studied,and three kinds of ramie wastewater from different process stages,including bio-enzyme soaked,Caustic boiled,and flushing wastewater after boiling,were compared for their biogas production capacity.The results showed that the bio-enzyme soaked wastewater had the longest gas production period of up to 4 days,the other two wastewaters were only 3 days.Moreover,the bio-enzyme soaked wastewater had the highest gas production rate,and the raw material biogas potential was 1.13 mL·mL^-1 wastewater,and the methane production rate was 0.49 mL·mL^-1 wastewater.The degradation rate of COD and BOD 5 were also the highest,76.3%and 82%respectively,and the COD gas production rate and methane production rate were also the highest,they were 169.1 mL·g^-1 and 56.9 mL·g^-1 respectively.The BOD 5 gas production rate and methane production rate of the flushing wastewater were the highest,530.4 mL·g^-1 and 56.9 mL·g^-1,respectively.All three kinds of wastewater could remove most organic matter by anaerobic digestion,and reduce the subsequent treatment pressure.The bio-enzyme soaked wastewater had the highest gas production rate,which could be used to produce biogas and provide green energy for ramie processing.

关 键 词：苎麻废水 厌氧消化 产气率 降解率 

分 类 号：S216.4[农业科学—农业机械化工程] X703[农业科学—农业工程]