Rio S, Faur-Brasquet C, Le Coq L, Lecomte D, Le Cloirec P
Ecole des Mines de Nantes, GEPEA, UMR CNRS 6144, 4 rue Alfred Kastler, BP 20722, 44307 Nantes cedex 3, France.
Water Sci Technol. 2004;49(1):139-46.
Sewage sludges produced from wastewater treatment plants continue to create environmental problems in terms of volume and method of valorization. Thermal treatment of sewage sludge is considered as an attractive method in reducing sludge volume which at the same time produces reusable by-products. This paper deals with the first step of activated carbon production from sewage sludge, the carbonization step. Experiments are carried out on viscous liquid sludge and limed sludge by varying carbonization temperature and heating rate. The results show that carbonized residue properties are interesting for activated carbon production.
污水处理厂产生的污泥在体积和回收利用方法方面持续引发环境问题。污泥的热处理被视为一种减少污泥体积的有效方法，同时还能产生可再利用的副产品。本文探讨了利用污泥生产活性炭的第一步，即碳化步骤。通过改变碳化温度和升温速率，对粘性液体污泥和加灰污泥进行了实验。结果表明，碳化残渣的特性对于生产活性炭具有重要意义。
