摘要
河道污染底泥原位处理是一种高效、经济、便捷的处理方法。本研究以河道底泥和上覆水为研究对象,对比分析底泥、底泥+硝酸钙、底泥+过氧化钙、底泥+1∶1硝酸钙和过氧化钙、底泥+EM菌剂对于河道底泥氮磷释放抑制和上覆水体改善效果。研究结果表明:与空白底泥相比,实验组在一定程度上都可以抑制底泥氮磷释放,促进上覆水体水质改善。但由于受温度、光照和底泥扰动不同,添加底泥稳定剂对于不同深度上覆水体修复情况存在差异。
In situ sludge sediment treatment is an efficient, economical and widely accepted method for endogenous pollution control. With controlled experiments, this study systematically investigated the effects of calcium nitrate, calcium peroxide, composite of calcium nitrate and calcium peroxide, and EM bacteria on the water quality improvement and inhibition of nutrient release from eutrophic river sediments. The results indicated that all the selected reagents can restrain the release of nitrogen and phosphorus from the sediment to a certain extent and promote the improvement of the overlying water quality. Due to the different temperature,light intensity and sediment disturbanee, the different sediment stabilizers could exhibit different effects on the restoration of overlying water at different depths.
出处
《山东化工》
CAS
2018年第1期146-151,共6页
Shandong Chemical Industry
关键词
富营养化水体
河道底泥
稳定剂
氮磷释放
Eutrophic water body
river sediment
stabilizer
release of nitrogen and phosphorus
