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龚川南, 陈玉成, 黄磊. 曝气吹脱法用于牛场沼液污染物的去除[J]. 环境工程学报, 2016, 10(5): 2291-2296. doi: 10.12030/j.cjee.201504083
引用本文: 龚川南, 陈玉成, 黄磊. 曝气吹脱法用于牛场沼液污染物的去除[J]. 环境工程学报, 2016, 10(5): 2291-2296. doi: 10.12030/j.cjee.201504083
shu
Gong Chuannan, Chen Yucheng, Huang Lei. Pollutants removal characteristics by air stripping with aeration treating biogas slurry of cattle manure[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2291-2296. doi: 10.12030/j.cjee.201504083
Citation: Gong Chuannan, Chen Yucheng, Huang Lei. Pollutants removal characteristics by air stripping with aeration treating biogas slurry of cattle manure[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2291-2296. doi: 10.12030/j.cjee.201504083
shu

曝气吹脱法用于牛场沼液污染物的去除

  • 1.

    西南大学资源环境学院, 重庆 400716

  • 2.

    西南大学重庆市农业资源与环境研究重点实验室, 重庆 400716

  • 基金项目:

    国家科技支撑计划项目(2010BAD03B03)

    重庆市环境保护科技项目(2013CF-301)

  • 中图分类号: X713

Pollutants removal characteristics by air stripping with aeration treating biogas slurry of cattle manure

  • 1.

    School of Resource and Environment, Southwest University, Chongqing 400716, China

  • 2.

    Chongqing Key Laboratory of Agricultural Resource and Environment, Southwest University, Chongqing 400716, China

  • Fund Project:

  • 摘要: 氨吹脱是一种有效的污水脱氮处理技术,其中曝气吹脱法又简单易行。为了探究曝气吹脱法用于牛场沼液污染物去除的最优条件,实验研究了温度、曝气量、初始pH等参数对氨氮去除效果的影响,并探讨了投加Ca(OH)2及曝气吹脱对COD、TP的去除作用。结果显示:温度、曝气量是影响氨氮去除效果的关键因素,30 ℃、4 000曝气量条件下氨氮去除率最高;由于沼液本身pH会受吹脱影响升高,因此,调节初始pH在8~9.5范围内对氨氮去除效果无显著影响;Ca(OH)2能去除少量COD及TP,吹脱也能对COD去除有一定影响,投加7.7 g/L Ca(OH)2吹脱后,沼液COD、TP去除率分别为9.7%、14.8%。最优条件30 ℃、4 000曝气量下,不加Ca(OH)2吹脱能得到70%以上的的氨氮去除率。一般情况下建议不加Ca(OH)2进行沼液氨吹脱。
    Abstract: Ammonia stripping is an effective technology used to remove nitrogen from sewage, including aeration, which is simple and feasible. In order to obtain the air stripping optimal conditions, the influences of temperature, aeration quantity and initial pH on ammonium (NH4+-N) removal efficiencies were investigated respectively, and the effects of Ca(OH)2 usage and aeration on chemical oxygen demand (COD) and total phosphrous (TP) removal were also studied.The results showed that the temperature and aeration were key factors, and the NH4+-N removal rate reached to the highest with 30 ℃ and 4 000. Because the pH of biogas slurry could increase with aeration, the effect of pH on NH4+-N removal was insignificant with the initial pH of 8 to 9.5. Ca(OH)2 could be useful for removing COD and TP, and aeration was helpful to remove COD. The removal rates of COD and TP were 9.7% and 14.8% respectively, when the Ca(OH)2 usage was 7.7 g/L. The NH4+-N removal rate could be more than 70% with 30 ℃, aeration 4 000, and no Ca(OH)2 addition. Normally, aeration without alkaline agents was the suggested way to remove nitrogen in the ammonia stripping process.
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  • [1] 耿维, 胡林, 崔建宇, 等. 中国区域畜禽粪便能源潜力及总量控制研究. 农业工程学报, 2013, 29(1): 171-179 Geng Wei, Hu Lin, Cui Jianyu, et al. Biogas energy potential for livestock manure and gross control of animal feeding in region level of China. Transactions of the Chinese Society of Agricultural Engineering, 2013, 29(1): 171-179(in Chinese)
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  • 收稿日期:  2015-05-18
  • 刊出日期:  2016-06-03
龚川南, 陈玉成, 黄磊. 曝气吹脱法用于牛场沼液污染物的去除[J]. 环境工程学报, 2016, 10(5): 2291-2296. doi: 10.12030/j.cjee.201504083
引用本文: 龚川南, 陈玉成, 黄磊. 曝气吹脱法用于牛场沼液污染物的去除[J]. 环境工程学报, 2016, 10(5): 2291-2296. doi: 10.12030/j.cjee.201504083
shu
Gong Chuannan, Chen Yucheng, Huang Lei. Pollutants removal characteristics by air stripping with aeration treating biogas slurry of cattle manure[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2291-2296. doi: 10.12030/j.cjee.201504083
Citation: Gong Chuannan, Chen Yucheng, Huang Lei. Pollutants removal characteristics by air stripping with aeration treating biogas slurry of cattle manure[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2291-2296. doi: 10.12030/j.cjee.201504083
shu

曝气吹脱法用于牛场沼液污染物的去除

  • 1.  西南大学资源环境学院, 重庆 400716
  • 2.  西南大学重庆市农业资源与环境研究重点实验室, 重庆 400716
  • 收稿日期:  2015-05-18
基金项目:

国家科技支撑计划项目(2010BAD03B03)

重庆市环境保护科技项目(2013CF-301)

摘要: 氨吹脱是一种有效的污水脱氮处理技术,其中曝气吹脱法又简单易行。为了探究曝气吹脱法用于牛场沼液污染物去除的最优条件,实验研究了温度、曝气量、初始pH等参数对氨氮去除效果的影响,并探讨了投加Ca(OH)2及曝气吹脱对COD、TP的去除作用。结果显示:温度、曝气量是影响氨氮去除效果的关键因素,30 ℃、4 000曝气量条件下氨氮去除率最高;由于沼液本身pH会受吹脱影响升高,因此,调节初始pH在8~9.5范围内对氨氮去除效果无显著影响;Ca(OH)2能去除少量COD及TP,吹脱也能对COD去除有一定影响,投加7.7 g/L Ca(OH)2吹脱后,沼液COD、TP去除率分别为9.7%、14.8%。最优条件30 ℃、4 000曝气量下,不加Ca(OH)2吹脱能得到70%以上的的氨氮去除率。一般情况下建议不加Ca(OH)2进行沼液氨吹脱。

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