富营养化湖泊中沉积物原位治理技术进展

Research progress of in-situ treatment technology of sediments in eutrophic lakes

回顾了各种化学、物理和生物的原位治理技术,简要介绍了一种新的生物膜合成载体.在户外实验中,富营养的沉积物促进了毒藻的生长,而新合成的生物膜载体的布设可以阻碍藻类的生长.当应用这种新的合成载体来改善富营养化湖泊水质时,沉积物中P的形态也向有利于水质改善的方向变化.

Various chemical,physical and biological in-situ sediments treatment technologies were reviewed in this article.In the research trend discussed with special on a new in-situ biofilm technology that based on a kind of novel synthetical biofilm carrier.In the outdoors experiments,where excess nutrients in sediments enhanced growth of toxin producing algae,sediments treatment with the novel biofilm carrier blocked growth of these algae.When the novel synthetical biofilm carrier was used to improve water quality in eutrophic lakes,the forms of phosphorus in sediments were also changed to the favorable side where the water quality went to the better way.