Heat Treatment and Low Pressure Oxidation Systems
A study was performed to identify problems and to document solutions in the design, operation, and maintenance of heat treatment and low pressure oxidation systems for conditioning sludge...
Operations, Maintenance & Cost Comparisons of Three Dewatering Devices
The Metropolitan Waste Control Commission's Wastewater Treatment Plant in Minneapolis/St. Paul has demonstrated that two new innovative sludge dewatering pocesses, namely,...
Lime Sludge Lagoon Dewatering Using a Mobile Belt Filter Press
A major company was faced with the removal of 2100 cubic yards of lime sludge stored in three lagoons. Because the sludge contained relatively high concentrations of tin and nickel, it...
Optimization of Variable Volume Diaphragm Filter Presses
The St. Paul, MN, Metropolitan Waste Control Commission Wastewater Treatment Plant has installed and operated eight variable volume diaphragm filter presses for four years. During this...
Design and Operation of Belt Filter Presses
This report summarizes the findings of a study performed to identify and concisely document improved design and operation procedures for belt filter presses for municipal sludge that have...
Dewatering--Avoiding Its Unwanted Side Effects
The undesirable side effects that sometimes occur when dewatering for construction or mining are presented, including: ground settlement due to dewatering; deterioration of timber piling;...
Unique Installation Methods for Large Interceptor in Poor Soil Conditions
The construction of approximately 1. 5 miles of a major sewer interceptor in downtown Boston encountered some unique construction challenges. The entire route required dewatering during...
Feasibility Study of Use of Dredged Material as Sanitary Landfill Cover in the New York/New Jersey Harbor Area
The feasibility of use of dewatered dredged material as cover material at landfills in the New York/New Jersey Harbor area has been investigated by the New York District, U. S. Army Corps...
Evapoconsolidation in Fine-grained Material
The increased difficulty of obtaining land needed for confined disposal of dredged material and phosphatic clays highlights the need to assess alternative disposal measures by accurately...
Best Ways to Dewater Dredged Material
Left to its own devices, fine-grained dredged material placed in confined disposal areas reaches an equilibrium water content near its Atterberg liquid limit. The high water content of...
A Look at Newer Methods for Dewatering Wastewater Sludges
The U.S. water cleanup effort is resulting in the production of huge quantities of additional sludge. Because of the difficulty of disposing of this sludge, it is usually dewatered. Although...
New Gravity/Pressure Unit Cuts Sludge Dewatering Costs
A new device for dewatering sludges from either industrial or municipal waste treatment plants promises to cut both initial capital and operating costs over more traditional methods such...
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