湖泊中水一般是经雨水以及山体中的水流入,而雨水和山体水中常带有灰尘和泥土,经沉淀后在湖泊中形成淤泥。随着时间的推移,湖泊的面积因淤泥增加而减小,蓄水能力减弱,当大雨来临时,淤泥淤积会导致泄流不畅,甚至将会使洪水直接冲击河堤,严重的威胁当地居民的生命与财产安全。
The
water in lakes generally flows into the lake through rainwater and
water from mountains, which often contain dust and soil. After
sedimentation, it forms sludge in the lake. As time goes by, the area of
the lake decreases due to the increase of silt, and the water storage
capacity weakens. When heavy rain comes, the silt accumulation can lead
to poor drainage, and even cause floods to directly impact the river
embankment, posing a serious threat to the lives and property safety of
local residents.
一些淤泥中还存在着污染物质,从而引起湖泊水体污染,导致湖泊自净能力下降,水体内的生物存活率降低。在我国,淤泥通常是作为废弃物在农田、水塘等地集中堆放,若不加以妥善处理,则会长期占用大量土地,造成一系列的社会问题,并且存在环境污染危害,如何处理疏浚淤泥是一个值得重视的问题。
There
are also pollutants in some sludge, which will cause lake water
pollution, reduce the self purification ability of the lake, and reduce
the survival rate of organisms in the water. In China, sludge is usually
concentrated and stacked as waste in farmland, ponds, and other areas.
If not properly treated, it will occupy a large amount of land for a
long time, causing a series of social problems and environmental
pollution hazards. How to deal with dredged sludge is a problem worth
paying attention to.