污泥的能源化利用研究进展

Research of energy utilization of sewage sludge

污泥是污水处理后的附属品,是一种由有机残片、无机颗粒、细菌菌体、胶体等组成的极其复杂的非均质体,也是一种可以利用的资源。污泥的资源化方式有很多,其中将污泥制备成各种能源加以利用不仅可以减少污泥填埋所占用的土地,降低焚烧和土地利用过程中对环境和生态造成的风险,而且可以把污泥作为能源加以利用,变废为宝。总结了目前国内外有关污泥能源化利用的研究进展,旨在提供一个污泥能源化利用的新思路,推动污泥能源化利用的进一步发展。

Sludge,originated from wastewater plants, is a complex nonhomogeneous mixture that is consisted of or ganic fragments, inorganic particles, bacteria and colloid. Sludge is also regarded as a kind of available resource that can be reused. There are many methods for sludge utilization. For the production of energies with sludge, it can not only reduce the land occupied by the sludge landfill, lower the environmental and ecological risks caused by the processes of sludge incinera tion and land utilization, but also make full use of sludge and change wastes into valuables. The current progress of research on the production of energies with sludge was summarized, and a new idea of the utilization of sludge energization in order to promote the development of sludge treatment was proposed.