通过利用基于微藻技术的单一和共生系统和藻诱导技术处理水产养殖废水
Guojun Guo1, Caiyuan Zhao1, Wenyan Xu1
1College of Animal Science and Technology, Henan University of Animal Husbandry and Economy, Zhengzhou, China.
概括
斯特里戈拉克顿类似物GR24增强了水产养殖废水的微藻处理. 与单一栽培相比,用GR24处理的Chlorella vulgaris和Clonostachys rosea的共生系统显示出优越的营养和抗生素去除效率.
科学领域:
- 环境生物技术 环境生物技术
- 水生生态系统 水生生态系统
- 微藻系统 微藻系统
背景情况:
- 水产养殖废水由于高营养负载和潜在的抗生素污染,造成了环境挑战.
- 微藻在废水处理中是有效的,但可以提高效率.
- 斯特里戈拉克顿是植物激素,在调节微生物生长和活动方面具有潜在的应用.
研究的目的:
- 为了研究一种合成斯特里戈拉克类似物 (GR24) 对水产养殖废水中微藻处理系统的影响.
- 在不同的GR24度下,比较Chlorella vulgaris单种植与Chlorella vulgaris-Clonostachys rosea共生系统的疗效.
- 为了评估化学氧气需求 (COD),总 (TN),总 (TP) 和氧环氧化 (OTC) 的去除速度.
主要方法:
- 两种微藻处理系统 (单种植和共生) 被暴露在四种GR24度 (0, 10−11, 10−9和10−7M) 中.
- 生物质的增长,光合作用活动和废水处理效率都受到监测.
- 量化了营养物 (COD,TN,TP) 和抗生素 (OTC) 的去除率.
主要成果:
- 在两种系统中,高度的GR24改善了新陈代谢,光合作用和共生生长.
- 与单一栽培相比,共生系统的光合作用率,生物质积累和营养减少显著更高 (p < 0.05).
- 在共生系统中达到最佳GR24度 (10−9M) 的高去除率:COD (78.54%),TN (81.69%),TP (82.67%) 和OTC (98.72%).
结论:
- 合成的strigolactone类似物GR24有效地增强了基于微藻的废水处理.
- 菌-Clonostachys rosea共生系统在水产养殖废水处理方面提供了卓越的性能,包括抗生素去除.
- 这些发现支持开发先进的生物增强策略,用于使用藻类-细菌-真菌共生过程来处理复杂的,被抗生素污染的废水.
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