Abstract
This research was conducted to evaluate the effects of thermal and ultrasound disintegration on the disintegration degree (DD) of water treatment sludge from a municipal water treatment plant. A disintegration process was used to (i) improve subsequent coagulation efficiencies and dewatering processes (ii) reduce sludge production, and (iii) obtain both economic and enviromental benefits. The results show that using the disintegration process has an influence on DD values. It is also worth emphasising that the main parameter determining the efficiency of ultrasonic and thermal disintegration was the time of the applied process. Other parameters such as ultrasound intensity and temperature had a reduced impact on DD values.
Highlights
Water treatment sludge produced in the water treatment processes is an economic and environmental problem
It can be concluded that the main parameter determining the efficiency of ultrasonic and thermal disintegration is the time of process
This research was conducted to elucidate the effects of ultrasound and thermal disintegration on the disintegration degree of water treatment sludge
Summary
Water treatment sludge produced in the water treatment processes is an economic and environmental problem. The volumes of sludge produced is increasing due to increasing volumes of water being treated (sludge volumes typically ranging from 2 to 5% of treated water) [1]. Environmental concerns mean there are ongoing effort to limit formation and improve disposal of this type of waste. The management and disposal of water treatment sludge is a very important problem related to water treatment. Thermal Low temperature (100°C) Freezing, thawing
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