Now showing items 1-6 of 6
Conditioning and Dewatering Behavior of ATAD Sludges
(Virginia Tech, 2004-03-04)
Autothermal thermophilic aerobic digestion (ATAD) of sludge has been used to produce class A biosolids. With stringent EPA guidelines, more and more municipalities are looking to use this process for digestion of sludge. ...
Investigating the Role of Various Environment and Process Conditions in Wastewater Sludge Odor Generation
(Virginia Tech, 2004-08-26)
<p> Dewatered sludges and biosolids generated from wastewater treatment facilities are known to emit malodorous odors causing public inconvenience. The odors typically comprise of reduced organo sulfur based compounds and ...
Distribution of Colloidal Material in Activated Sludge as Influenced by Cations
(Virginia Tech, 2004-06-07)
Activated sludge influent and effluent from five municipal wastewater treatment plants were analyzed to further elucidate the roles of aluminum, iron, and the monovalent to divalent cation ratio (M/D) on the influent and ...
Push-pull Tests to Quantify In-situ Naphthalene Phytoremediation Rates
(Virginia Tech, 2004-01-09)
Ten strategically placed push-pull wells were installed to determine in-situ degradation rates at a creosote contaminated site and to assess the contribution of hybrid poplar trees to polynuclear aromatic hydrocarbon (PAH) ...
Comparative Studies of Alternative Anaerobic Digestion Technologies
(Virginia Tech, 2004-10-14)
Washington D.C. Water and Sewage Authority is planning to construct a new anaerobic digestion facility at its Blue Plains WWTP by 2008. The research conducted in this study is to aid the designers of this facility by ...
Effect of plastics on the lignin results for MSW and the fate of lignin in laboratory solid waste reactors
(Virginia Tech, 2004-10-18)
<p> Cellulose to lignin ratio is one of the widely used indicators of degree of landfill stabilization. This ratio shows the amount of carbohydrate or cellulose consumed by anaerobes compared to relatively inert lignin. ...