Results 81 to 90 of about 16,116 (166)

Volatile fatty acids production from fermentation of secondary sewage sludge : a thesis presented in partial fulfillment of the requirements for the degree of Master of Engineering in Environmental Engineering [PDF]

, 2008
Sludge fermentation is used worldwide as an economical means to produce volatile fatty acids (VFA), which can be used as readily available carbon in biological nutrient removal (BNR) systems.
Banker, Sumit
core  

Mechanical properties of dewatered sewage sludge [PDF]

Waste Management, 2005
The mechanical properties of dewatered, anaerobically digested sewage sludge were determined from soil laboratory tests. The sludge material is largely composed of organic clay sized-particles, a sizable fraction of which is in an active state of biological digestion which can continue over many years under field conditions.
openaire   +4 more sources

Real-Time Sensor-Controlled Coagulant Dosing and Pressure in a Novel Sludge Dewatering System

Clean Technologies
Sludge dewatering remains a resource-intensive process, often constrained by high residual moisture content and inefficient chemical conditioning. Conventional systems typically rely on fixed polymer dosages and predetermined filtration pressures, which ...
Eunhye Song, Seong Kuk Han
doaj   +1 more source

Sludge drying reed beds : full and pilot scale study for activated sludge treatment [PDF]

, 2009
International audienceSludge drying reed beds have been used for dewatering and mineralization of sludge since the beginning of the 90's, but their insufficient performances in terms of Dry Matter [DM] content and mineralization of the sludge have made ...
Esser, Dirk, Lienard, Alain, Merlin, Gerard, Molle, Pascal, Troesch, Stephane   +4 more
core   +1 more source

Modeling of Wastewater Sludge Dewatering Kinetics Using the Method of Linear Proportionalities

Energy Engineering and Control Systems
Sewage sludge accumulating at treatment facilities is aqueous suspensions separated from wastewater during treatment processes. Untreated sludge has been discharged for decades into overloaded sludge beds, dumps, or quarries, leading to environmental ...
Orest Verbovskyi, Vadym Orel, Volodymyr Femiak   +2 more
doaj   +1 more source

Construction, start-up and operation of a continuously aerated laboratory-scale SHARON reactor in view of coupling with an Anammox reactor [PDF]

, 2005
In this study practical experiences during start-up and operation of a laboratory-scale SHARON reactor are discussed, along with the construction of the reactor.
Donckels, Brecht, Maertens, Jo, Schelstraete, Griet, Van den Broeck, S, Van Hulle, Stijn, Vanrolleghem, Peter A, Villez, Kris, Volcke, Eveline   +7 more
core   +1 more source

In-line Sludge Dewatering 

, 2019
This paper summarizes the work done to show a proof of concept for an in-line sludge dewatering system. First, the design of the system is described, including the selection of materials, devices, and simulated sludge used to test this concept. The different materials and processes considered for each element are described in the System Design section.
openaire   +1 more source

Chemical conditioning of aerobically digested sludge using polyelectrolytes with different charge densities

Applied Water Science
This research was carried out to evaluate the effects of different dosages (1.85–4.44 g kg−1 Ts−1) of three cationic polyelectrolytes with charge densities (CD) of 20%, 40%, and 60% on the dewatering properties of an aerobically digested sludge.
Mohammadreza Asghari, Shahnaz Danesh, Ali Ahmadpour, Mehrdad Malekshahi, Moein Behnamsani   +4 more
doaj   +1 more source

Fibrous super-bridging agents simultaneously improve contaminants removal and sludge dewatering via a very compact three-in-one process

npj Clean Water
A compact three-in-one water treatment process, combining a flocculant, a fibrous super-bridging agent, and a screen-based floc retention system, simultaneously improves water treatment and sludge dewatering.
Manel Mebarki, Gabriella Joge Ngale, Mathieu Lapointe   +2 more
doaj   +1 more source

Research progress on flocculation-based conditioning technology for sludge dewaterability enhancement

Gongye shui chuli
It is an important prerequisite for proper disposal and resource utilization of sludge to improve its dewaterability with conditioning pretreatment. Conditioning based on flocculation is the most reliable and widely used technology for improving sludge ...
LI Jie, DAI Zijun, ZHANG Qingbo, YIN Jifu, RU Shaoqin, WANG Hongtao, LI Fengting, LIU Misha   +7 more
doaj   +1 more source