城市污泥与造纸黑液制备生物质煤浆的试验研究

Experimental study on biomass coal slurry preparation using municipal sludge and black liquor

城市污泥是污水处理的副产品,具有高含水率、高灰分、高挥发分、低热值、性质不稳定的特点;而造纸黑液则是造纸厂排出的污染物,如不经适当处理,将严重污染环境。运用水煤浆新技术,将城市污泥、造纸黑液与煤混合制备的水煤浆进行研究,结果表明,生物质煤浆既处理了难以有效利用的城市污泥,又解决了造纸黑液的污染问题,具有显著的经济效益、环保效益和社会效益。

The municipal sludge is a by-product in raw sewage treatment process. High moisture, ash and volatile matter content, low heat value and unstable property are its shortings. The black liquor can cause serious environmental pollution if wouldn＇t be treated effectively. The target of this study has tried to prepare biomass coal water slurry using the municipal sludge and black liquor as raw materials. The results show that this process has remarkable economic and social benefits because it can achieve waste to treasure.