中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 藻酸盐固定化颗粒耐久性研究 农业环境科学学报 2008,27 (01) 338-341
Position: Home > Articles > Investigation on Stability of Alginate-immobilized Beads Journal of Agro-Environment Science 2008,27 (01) 338-341

藻酸盐固定化颗粒耐久性研究

作  者：
聂荣;翟建平
单  位：
江苏省交通科学研究院环境工程研究所;南京大学环境学院环境工程系
关键词：
海藻酸钙;海藻酸钡;耐久性;磷回收;污水处理
摘  要：
针对藻酸盐载体耐久性差的缺点,选用了3种不同的方法(补充Ca、添加Ba和减少包埋量)来提高藻酸盐固定化颗粒的耐久性。结果表明,Ca2+的流失是引起藻酸盐凝胶强度下降的主要因素。减少包埋生物量仅能短期提高藻酸盐载体的耐久性,而补充Ca2+、添加Ba2+不但能使固定化颗粒长时间保持稳定,且加固后的固定化颗粒具有良好的生化性能。固定化污泥能快速稳定地去除富营养化湖水中的磷,并能实现磷的回收,这有利于推进磷资源的可持续利用。
译  名：
Investigation on Stability of Alginate-immobilized Beads
作  者：
NIE Rong1,2, ZHAI Jian-ping2 (1.Environmental Engineering Institute, Jiangsu Transportation Research Institute, Nanjing 210017, China; 2.The State Key Laboratory of Pollution Control and Resource Reuse Research, Department of Environmental Engineering, School of Environment, Nanjing University, Nanjing 210093, China)
关键词：
calcium alginate; alginate barium; stability; phosphorus recycled; wastewater treatment
摘  要：
The study was to improve the rheological stability of immobilized activated sludge beads for wastewater treatment. Three methods (calcium recruitment, barium accession and cell reduction) were applied to improve the mechanical stability of alginate immobilized beads. It was shown that the replacement of calcium from alginate gel was the main factor causing alginate gel dissolving in media. Calcium alginate immobilized sludge beads without any amendment were disintegrated in 10 days wastewater treatment. Cell reduction immobilized sludge beads showed more stable mechanical stability in 15 days and 19 days (50% and 75% cell reduction respectively), but performed less biological activity. Either calcium recruitment or barium accession immobilized activated sludge beads demonstrated a high biological and rheological stability, the reinforced beads were not out of shape, and had good bioactivity during the 20 days wastewater treatment. Phosphorus could be removed and recovered effectively rapidly from eutrophicated water using alginate-immobilized sludge. The investigation offered a new opportunity for phosphorus recovery and phosphorus sustainability.

相似文章

导出引用
计量
文章访问数: 7
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46