Advanced Search Home WEF Login UserName Password Login Instructions   Membership     Membership Renewal     My Member Info     Meetings     Subscriptions     Marketplace     Marketplace Search     Checkout     Shopping Cart   Product Qty (empty cart)     Additional Stabilization Methods > Publication: Operation of Municipal Wastewater Treatment Plants Manual of Practice-MOP 11 Sixth Edition Medium: Download Chapter Pages 43 Publisher: Water Environment Federation (WEF) Year: 2007 Order No: MOP1132 DOI: 10.2175/1-57278-232-3-32 Table of Contents Index Cover Art Order Additional Chapters of MOP 11 Order a Hard Copy of MOP 11 Abstract: Effective sludge processing is crucial to the reliable operation of a municipal wastewater treatment plant (WWTP). Because WWTPs have become more efficient at producing high-quality effluents, increased quantities of sludge are being generated. The solids treatment processes-thickening, dewatering, stabilization, and disposal-represent a major portion of the cost of wastewater treatment. Sludge stabilization processes further treat the sludge to reduce odors or nuisances, to reduce the level of pathogens, and to facilitate efficient disposal or reuse of the product. This chapter focuses on the conventional methods of sludge stabilization other than anaerobic and aerobic digestion. Chapters 30 and 31 of this manual discuss anaerobic and aerobic methods. This chapter discusses the following stabilization methods: Composting, Lime stabilization, Thermal treatment, Heat drying, and Incineration. All of these stabilization methods (other than incineration) are considered acceptable processes and are widely used for treating sludge to Class A or Class B levels for beneficial reuse and disposal, as referenced in the U.S. Environmental Protection Agency's 40 CFR 503 regulations. The 503 regulations require documentation that one of these processes is used when meeting one of the alternatives listed for pathogen reduction in 503.32(a) for Class A sludge and 503.32(b) for Class B sludge. The resultant product has been referred to in this text as biosolids. In addition, the 503 regulations reference the U.S. EPA guidance manual Control of Pathogens and Vector Attraction in Sewage Sludge for calculation procedures that are acceptable for mass volatile solids reduction that is required for 503.33-Vector Attraction Reduction.   Member Price:  $20.00 List Price:  $27.00 Downloadable version Additional Stabilization Methods Continue Shopping Login for Member Pricing ©2000 Water Environment Federation Privacy, Security and Copyright Statements