Influnce factors of slude granul ation in UASB,including environment,characters of sewage and conditions of operation were summerized.The new trends in the field were poimted out.

• 综述了UASB反应器中颗粒污泥形成的影响因素,包括环境因素、废水特征及操作条件,并就这一研究提出了其新的发展方向。