河涌淤泥泥质分析和种植土利用研究

Study on the Analysis of River Silt and the Utilization of Planting Soil

随着河涌水质日趋变好,清淤出的底泥泥质也发生很大变化,为了防止清淤淤泥可能带来的二次污染,并实现淤泥资源化利用,本文通过对广州市白云区部分河涌上、中、下游清淤淤泥进行泥质检测和分析,结合当前行政管理部门的要求,对淤泥进行筛选,并使用适当的方法对其改良成适用的种植土,根据不同使用要求对其进行有效利用。研究表明,河涌淤泥泥质已得到大大改善,由原来的重金属多数超标、有机质含量高,变成现在的重金属少量超标、营养成分不足,或者个别指标不达标。需要针对性对淤泥进行简单改良即可被重新利用,但是在使用之前仍需对其进行检测和试验,并进行周期性观察和记录,才能真正应用到实际工程当中。

As the water quality of the river is getting better and better,the sediment quality of the dredged sludge has also changed greatly.In order to prevent the secondary pollution caused by the dredged sludge and realize the resource utilization of the sludge,through the sludge detection and analysis of the dredged sludge in the upper,middle and lower reaches of some rivers in Baiyun District of Guangzhou City,combined with the requirements of the current administrative department,the sludge is screened,and the appropriate method is used to improve it into suitable planting soil,and it is effectively utilized according to different use requirements.The research shows that the river silt has been greatly improved,from the original heavy metals mostly exceed the standard,high organic matter content,into a small amount of heavy metals exceed the standard,lack of nutrients,or individual indicators do not meet the standard.We need to make a simple improvement of the silt to be reused,but it still needs to be tested and tested before use,and periodic observation and recording can be truly applied to the actual project.