Results 81 to 90 of about 142,636 (209)

Study on the waste activated sludge dewatering effect and mechanism conditioned by persulfate induced with iron-based sludge biochar

open access: yesGongye shui chuli
In order to improve the dewatering performance of waste activated sludge,iron-based sludge biochar(Iron-SBC) activating persulfate(PDS) was used to treat sludge.
ZHANG Jing   +5 more
doaj   +1 more source

Quaternization-based graft modification of straw fibers for conditioning the sludge dewatering performance

open access: yesWater Science and Technology
Extracellular polymeric substances (EPS) are a critical influencing factor in sludge dewatering. Disrupting such EPS contributes to the release of bound water in sludge, enhancing the sludge dewatering performance. In This study, quaternized straw fibers
Qingfang Zhang   +7 more
doaj   +1 more source

Aquatic worm reactor for improved sludge processing and resource recovery [PDF]

open access: yes, 2009
Municipal waste water treatment is mainly achieved by biological processes. These processes produce huge volumes of waste sludge (up 1.5 million m3/year in the Netherlands).
Hendrickx, T.L.G.
core  

Improved dewatering by hydrothermal conversion of sludge

open access: yes, 2008
A growing demand for renewable energy resources, together with increasing criticism on the competition with food crop production caused by current production methods, has stimulated new interest for fuel production from sewage sludge.
Krott, Ellen   +7 more
core  

Sludge dewatering using centrifuge with thermal/polymer conditioning

open access: yes, 2001
Sludge dewatering is preceded by a conditioning operation to enhance water removal efficiency. In the conditioning operation, chemical coagulants or polymers are added to promote sludge particle aggregation for easier dewatering.
Y. Shien, C.F. Lin
core   +1 more source

In-line Sludge Dewatering 

open access: yes, 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

Laboratory Testing Methods for Centrifugal Sludge Dewatering Processes [PDF]

open access: yes, 2013
Sludge dewatering is an important part of the municipal and industrial wastewater treatment. The purpose of sludge dewatering is to reduce organic ingredients, as well as the volume and weight of the sludge.
Kätkä, Kaisa
core  

Primary Sludge Addition for Enhanced Biosludge Dewatering [PDF]

open access: yes, 2014
Biosludge disposal is a costly challenge for pulp and paper mills. Primary sludge is often combined with biosludge, and while this is known to improve downstream dewatering, quantification of the effects of primary sludge addition is not well studied ...
Amin, Parthiv
core   +2 more sources

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

open access: yesClean 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

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