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Full-Text Articles in Engineering
Chemical Pretreatment And Dewaterability Of Aanaerobically Digested Bio-P Biosolids, Eileen Margaret Kennedy
Chemical Pretreatment And Dewaterability Of Aanaerobically Digested Bio-P Biosolids, Eileen Margaret Kennedy
Master's Theses (2009 -)
Phosphorous (P) effluent regulations from water resource recovery facilities (WRRFs) have become more stringent to reduce the damage of eutrophication caused by excess amounts of P. Enhanced biological phosphorus removal (EBPR) is a popular method to help comply with these regulations combined with other practices such as filtration. However, the sludges from facilities that employ EBPR (bio-P sludges) are difficult to dewater and require more polymer than conventional sludge, thereby increasing the cost of solids handling at these facilities. The monovalent to divalent (M/D) cation ratio, which is important in dewatering, is reportedly altered during the EBPR process. P speciation …
A Framework To Predict The Dewatering Performance Of Large Scale Geotextile Tubes In The Field, Chinthoory Ganesalingam
A Framework To Predict The Dewatering Performance Of Large Scale Geotextile Tubes In The Field, Chinthoory Ganesalingam
Theses - ALL
Over the past two decades, geotextile tube dewatering technology has been widely used to handle high water content waste materials in a more sustainable and economical way. The function of a geotextiles tube in a dewatering project is to retain the solid particles inside the tube and release the effluent from the tube through the pores in its surface. Several small-scale (Pressure Filtration Test – PFT, Falling Head Test – FHT) and medium-scale (Geotextile Tube Dewatering Test – GDT, Hanging Bag Test – HBT) performance tests are available to predict the results of the geotextile tube dewatering process in the …
Investigation Of Dredge Material Dewatering Through Hydraulic And Ground Improvement Methods, Monica Moody
Investigation Of Dredge Material Dewatering Through Hydraulic And Ground Improvement Methods, Monica Moody
Williams Honors College, Honors Research Projects
Every year almost 1.5 million tons of material is dredged from Lake Erie to allow passage for boat traffic. In the past, this material has been placed back into the open waters of the lake. However, starting July 2020 this will no long be permitted due to the passing of Senate Bill 1. Therefore, secondary uses of this dredging material are being investigated. To be used, the material needs to be quickly dewatered and stabilized. This project consists of literary reviews of two methods of rapid dewatering, hydraulic placement and ground improvement methods. Hydraulic placement dewatering requires the use of …
Stabilization Of Dredged Materials In Ohio: An Investigation Of Mechanical, Chemical And Biological Dewatering Techniques, Erika Howard
Stabilization Of Dredged Materials In Ohio: An Investigation Of Mechanical, Chemical And Biological Dewatering Techniques, Erika Howard
Williams Honors College, Honors Research Projects
Each year, materials are excavated from oceans and lakes in order to keep the waterways open so that ships can safely pass through. These excavated, or dredged, materials are then discarded, usually being returned to the body of water from which they were removed. Beginning in 2020, the Ohio Environmental Protection Agency (OEPA) will no longer allow this to occur. Therefore, the purpose of this project is to investigate beneficial uses for dredged materials in Lake Erie, and to address the best management practices for dewatering these materials, as set forth in the Lake Erie Protection and Restoration Plan created …