曝二氧化碳气体对近具刺链带藻在高氨氮废水中生长的影响

doi:10.3969/j.issn.1004-1524.2019.09.19

浙江农业学报 ›› 2019, Vol. 31 ›› Issue (9): 1541-1548.DOI: 10.3969/j.issn.1004-1524.2019.09.19

曝二氧化碳气体对近具刺链带藻在高氨氮废水中生长的影响

罗龙皂^1,2, 林小爱³, 朱峰¹, 曾凡健², 张邦喜⁴, 刘烨¹, 田光明^2,*

1.上饶师范学院化学与环境科学学院,江西上饶 334001;
2.浙江大学环境与资源学院,浙江杭州 310058;
3.上饶师范学院生命科学学院,江西上饶 334001;
4.贵州省农业资源与环境研究所,贵州贵阳 550006

收稿日期:2019-05-05 出版日期:2019-09-25 发布日期:2019-10-11
通讯作者: *田光明,E-mail: gmtian@zju.edu.cn
作者简介:罗龙皂(1985—),男,江西上饶人,博士,讲师,主要从事废水资源化研究。E-mail: luolongzao@sina.com
基金资助:
上饶市科技支撑计划(18C011); 贵州省自然科学基金重点项目(20191452)

Effect of aeration with carbon dioxide on growth of Desmodesmus sp. CHX1 in wastewater with high concentration of ammonium nitrogen

LUO Longzao^1,2, LIN Xiaoai³, ZHU Feng¹, ZENG Fanjian², ZHANG Bangxi⁴, LIU Ye¹, TIAN Guangming^2,*

1. School of Chemistry and Environmental Science, Shangrao Normal University, Shangrao 334001, China;
2. College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China;
3. College of Life Science, Shangrao Normal University, Shangrao 334001, China;
4. Guizhou Institute of Agricultural Resources and Environment, Guiyang 550006, China

Received:2019-05-05 Online:2019-09-25 Published:2019-10-11

摘要/Abstract

摘要： 养猪废水中丰富的氨氮可为微藻生长提供充足的养分,但是高质量浓度的氨氮会抑制微藻生长。以近具刺链带藻为对象,考查微藻在不同质量浓度的氨氮废水中的生长情况,同时探讨曝二氧化碳气体对微藻在高氨氮废水中生长的影响。结果表明,当初始氨氮的质量浓度为350~900 mg·L^-1时,近具刺链带藻的生长受到明显抑制,培养7 d后,各处理微藻的生物量仅增加0.08~0.13 g·L^-1。对不同质量浓度的氨氮废水进行曝二氧化碳气体处理后,微藻的生长情况明显改善,各处理的生物量增加了0.32~0.47 g·L^-1。未曝气处理的废水pH值呈下降趋势,7 d后下降了约0.50;而曝气条件下废水的pH值呈先增加后下降趋势,第1天到第2天上升了约1.50,从第2天开始至第7天,下降了约0.40。试验条件下氨氮的去除率在3.76%~20.10%。研究结果证实,过高质量浓度的氨氮确实会抑制微藻的生长,但通过曝二氧化碳气体的形式可以改善微藻在高质量浓度氨氮废水中的生长情况。

关键词: 微藻, 氨氮, 养猪废水, 曝气, 二氧化碳

Abstract: The piggery wastewater can provide sufficient nutrient for the growth of microalgae. However, high concentration of ammonium nitrogen in the piggery wastewater may inhibit the growth of microalgae. In order to solve this problem, the inhibition of ammonia on Desmodesmus sp. CHX1 growth was investigated in the wastewater with initial ammonium concentration of 350-900 mg·L^-1, as well as the elimination effects of aeration with carbon dioxide. Results showed that the growth of Desmodesmus sp. CHX1 was inhibited by ammonia, with the increment of biomass of only 0.08-0.13 g·L^-1 after 7 days of culturing. Aeration with carbon dioxide could alleviate the inhibition of ammonia, with biomass increment of 0.32-0.47 g·L^-1. Decreasing trends of pH were observed in the wastewater without aeration, with the reduction of 0.5. While the pH in the aeration condition increased by 1.50 first and then decreased by 0.40. The ammonium was removed by 3.76%-20.10% in the experiment conditions. These results demonstrated that high concentration of ammonium nitrogen inhibited the growth of Desmodesmus sp. CHX1. Aeration with carbon dioxide could improve the growth of Desmodesmus sp. CHX1 in the wastewater with high concentration of ammonium nitrogen.

Key words: microalgae, ammonium nitrogen, piggery wastewater, aeration, carbon dioxide

中图分类号:

S968.4
X703

罗龙皂, 林小爱, 朱峰, 曾凡健, 张邦喜, 刘烨, 田光明. 曝二氧化碳气体对近具刺链带藻在高氨氮废水中生长的影响[J]. 浙江农业学报, 2019, 31(9): 1541-1548.

LUO Longzao, LIN Xiaoai, ZHU Feng, ZENG Fanjian, ZHANG Bangxi, LIU Ye, TIAN Guangming. Effect of aeration with carbon dioxide on growth of Desmodesmus sp. CHX1 in wastewater with high concentration of ammonium nitrogen[J]. , 2019, 31(9): 1541-1548.

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曝二氧化碳气体对近具刺链带藻在高氨氮废水中生长的影响

Effect of aeration with carbon dioxide on growth of Desmodesmus sp. CHX1 in wastewater with high concentration of ammonium nitrogen

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