给水厂污泥土地利用方式与碳减排研究

Study on Land Utilization and Carbon Emission Reduction of Water Supply Plant Sludge

给水厂污泥处理处置是目前影响给水企业经营生产的重要问题。针对某给水厂污泥开展了泥质特性检测,对照污泥土地利用中土地改良、园林绿化和农用标准进行土地利用的可行性分析,并初步探讨了给水厂污泥土地利用碳减排效果。结果表明,给水厂污泥风干后可直接应用于土地改良,亦可改良后间接利用于园林绿化和农用,污泥土地利用比直接填埋或焚烧可减少碳排放,甚至起到一定碳汇作用,抵消土地利用作业中产生的碳排放。

Water supply plants sludge treatment and disposal is an important issue affecting the operation and production of water supply enterprises.According to the water supply plant sludge quality characteristics,the feasibility of land utilization is determined by comparing the land improvement,landscaping and agricultural standards.And the carbon emission reduction effect of water plant sludge land use is preliminarily discussed.The results show that the sludge of water supply plant can be directly used for land improvement after drying,and be indirectly used for landscaping and agricultural land after improvement.It is expected that the sludge will reduce a lot of carbon emissions through land application compared with the sludge directly buried or burned,and even play a role of carbon sink to offset the carbon emissions during land application.