某污泥堆肥车间通风系统实测与分析

Field Test and Analysis of the Ventilation System in one Biosolid Sludge Composting Plant

堆肥处理是城市污泥减量化、无害化和资源化的主要手段。在污泥堆肥过程中会产生大量的有害气体,需通过集中收集和生物过滤的方法将其处理。研究表明,生物滤池的滤料过滤阻力随时间逐渐增加,滤料的使用寿命不仅要考虑过滤效率问题还需考虑使用终阻力。并联风机通风系统存在工况转捩点,设计工况和系统终阻力工况点应位于工况转捩点的右侧。

Composting is the primary means of urban sludge reduction,harmlessness and resources.During composting there will produce a large amounts of odors,so it is necessary to deal with the odors by centralized collection and biological filtration.Studies have shown that the filtration resistance of the biofilter filter gradually increases over time,therefore,determining the life of the filter not only must consider the filtration efficiency but also need to consider the final resistance of the filter.There have turning operating points in the ventilation system with parallel fan,both the operating point of design conditions and the operating point of final resistance conditions should be located in the right side of the turning operating point.