摘要
处理污水已成为微藻应用的一个重要研究方向。小球藻经驯化后可在沼液中良好生长。适当通气有益于小球藻在沼液中的生长,实现深度净化。通过比较不同通气条件下,小球藻在沼液中的生长情况以及对沼液的净化效果,得到最佳通气条件。研究发现小球藻在通气量为1.5 L/min时生长最好,10 d后生物量干质量可达4.3751 g/L,对COD、NH+4-N和TP的去除效果也最好,COD、NH+4-N和TP降到84.62,26.73,7.68 mg/L,去除率分别达到94.49%、91.28%、85.43%,达到畜禽养殖业污染物排放标准。
Wastewater treatment is an important research field in microalgae engineering currently. The domesticated Chlorella can grow well in biogas slurry. Proper aeration is beneficial to the growth of Chlorella in biogas slurry,realizing the depth purification. In order to get the optimum aeration condition,the growths of C. vulgaris in biogas slurry as well as the purification effect on biogas slurry in different aeration conditions were studied. According to the research,C. vulgaris growth and the removal effect of COD,NH+4- N and TP got the peak when the aeration intensity was 1. 5 L /min. Under this condition,the biomass( dry weight) was up to 4. 3751 g /L on the tenth day,COD,NH+4-N and TP decreased to 84. 62,26. 73,and 7. 68 respectively,which meet the requirements of discharge standard of pollutants. Then,the removal rate of COD,NH+4-N and TP reached at 94. 49%,91. 28%,85. 43%.
出处
《环境工程》
CAS
CSCD
北大核心
2014年第11期45-48,共4页
Environmental Engineering
基金
国家863项目(2012AA021205、2012AA021704、2012AA101800)
国家自然科学基金项目(21266022)
国际合作项目(2010DFB63750)
江西省科技战略性新兴产业研发项目(2013AFC30044)
江西省科技厅科技落地计划(KJLD 12011)
江西省科技重大专项(2012ABG04103)
关键词
小球藻
沼液
通气量
净化
Chlorella vulgaris
biogas slurry
ventilate grade
purification
