What is anaerobic granular sludge treatment process?
Anaerobic granular sludge treatment processes have been evolving, although the granulation process of anaerobic sludge is not well understood. In this review, up-flow anaerobic sludge tanks (UASB), expanded granular sludge tanks (EGSB) and static granular bed reactors (SGBR) are presented as representative components of anaerobic granular sludge treatment processes. The characteristics and application trends of each reactor are presented.The UASB reactor was developed in the late 1970s and its use has rapidly spread due to its excellent performance. With activated granules, this reactor can treat a wide range of high strength wastewaters and municipal wastewater. Most soluble industrial wastewaters can be effectively applied using UASB. the EGSB reactor was developed to provide more contact between the wastewater and the particulate matter. In this reactor, a fast rise rate separates the dispersed sludge from the mature particles. the EGSB reactor has shown excellent performance ...