不同工艺阶段的苎麻废水厌氧消化产沼气研究
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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 BOD5 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 BOD5 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.
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 BOD5 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 BOD5 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.
引文
[1]李望星.苎麻脱胶废水治理工程设计[J].给水排水,2002,(01):60-61.
[2]龙芳年,袁力军.高效微生物净化苎麻化学脱胶废水的探讨[J].中国麻业科学,2007,(04):204-206,211.
[3]明银安.生化---光催化氧化法处理苎麻脱胶废水[J].工业安全与环保,2002,(05):18-21.
[4]王克浩,李东伟,李斗,等.苎麻脱胶废水处理工程设计[J].水处理技术,2006,(10):93-95.
[5]吴江,王立华,张晓光.物化与生物组合工艺在苎麻脱胶废水处理工程中的应用[J].中国农学通报,2009,25(15):277-280.
[6]朱建春,张增强,樊志民,等.中国畜禽粪便的能源潜力与氮磷耕地负荷及总量控制[J].农业环境科学学报,2014,33(03):435-445.
[7]包海峰,鲍建国,李宏伟.酸化水解/生物氧化/光化工艺处理苎麻脱胶废水[J].中国给水排水,2006,(14):52-55.
[8]陈进,曾思蓉.苎麻废水处理工艺的探讨[J].成都信息工程学院学报,2006,(04):577-582.
[9]崔康平.分步厌氧-内循环SBR工艺处理苎麻脱胶废水[J].工业水处理,2002,(01):43-45.
[10]高春梅,奚旦立,杨晓波.膜生物反应器处理苎麻脱胶废水的研究[J].环境污染与防治,2005,(08):583-587.
[11]APHA.Methods for Examination of Water and Wastewater,20th ed[C].American Public Health Association/American Water Works Association/Water Environment Federation,Washington,DC,USA,1998.
[12]徐美倩.废水可生化性评价技术探讨[J].工业水处理,2008,(05):17-20.
[2]龙芳年,袁力军.高效微生物净化苎麻化学脱胶废水的探讨[J].中国麻业科学,2007,(04):204-206,211.
[3]明银安.生化---光催化氧化法处理苎麻脱胶废水[J].工业安全与环保,2002,(05):18-21.
[4]王克浩,李东伟,李斗,等.苎麻脱胶废水处理工程设计[J].水处理技术,2006,(10):93-95.
[5]吴江,王立华,张晓光.物化与生物组合工艺在苎麻脱胶废水处理工程中的应用[J].中国农学通报,2009,25(15):277-280.
[6]朱建春,张增强,樊志民,等.中国畜禽粪便的能源潜力与氮磷耕地负荷及总量控制[J].农业环境科学学报,2014,33(03):435-445.
[7]包海峰,鲍建国,李宏伟.酸化水解/生物氧化/光化工艺处理苎麻脱胶废水[J].中国给水排水,2006,(14):52-55.
[8]陈进,曾思蓉.苎麻废水处理工艺的探讨[J].成都信息工程学院学报,2006,(04):577-582.
[9]崔康平.分步厌氧-内循环SBR工艺处理苎麻脱胶废水[J].工业水处理,2002,(01):43-45.
[10]高春梅,奚旦立,杨晓波.膜生物反应器处理苎麻脱胶废水的研究[J].环境污染与防治,2005,(08):583-587.
[11]APHA.Methods for Examination of Water and Wastewater,20th ed[C].American Public Health Association/American Water Works Association/Water Environment Federation,Washington,DC,USA,1998.
[12]徐美倩.废水可生化性评价技术探讨[J].工业水处理,2008,(05):17-20.