The sludge output continuously increases with more and more stringent wastewater treatment regulations, the rapid development of industrialization and urbanization, and the rapid growth of population in the world. Presently, sludge output in China, US and EU has been over 1100, 800 and 900 million tons of dry solids per year, respectively. Several harmful components can be found in sewage sludge, e.g. heavy metals, pathogens and toxic organics. It is urgent to develop sustainable and environmentally friendly technologies to reduce sludge volume, realize the energy and resource recovery from sewage sludge, and decrease the negative impact during sludge treatment and disposal.
A variety of sludge treatment technologies and methods are available. Among the key factors influencing the choice of treatment technology is the composition of the sludge, such as moisture content, organic matters, pollutants. The moisture and organic content affects factors such as sludge transportation, mixing, drying, and dewatering. Harmful substances (especially heavy metals) may be the most unfavourable factor influencing the final disposal of the sludge. Sludge treatment and management account for up to 60% of the total cost of wastewater treatment. The cost together with the environmental impact makes it very important to recover the energy and resource from sludge, which can partially offset the high cost of sludge treatment.
We welcome articles on themes included, but not limited to:
1) Dewatering technologies of sewage sludge;
2) Thermal drying technologies of sewage sludge;
3) Production and application of sludge based biochars;
4) Sludge pyrolysis and gasification for energy and resource recovery;
5) Supercritical water oxidation of sewage sludge;
6) Sewage sludge combustion;
7) Anaerobic digestion of sewage sludge for biogas production;
8) Agricultural utilization of sewage sludge;
9) Phosphorus recovery from sewage sludge;
10) Pollutants control during sludge treatment and disposal;
11) Rheological behavior of sewage sludge;
12) Stickiness properties of sewage sludge and anti-stickiness technologies for sludge treatment;
13) Other related technologies for sludge treatment and management.
The sludge output continuously increases with more and more stringent wastewater treatment regulations, the rapid development of industrialization and urbanization, and the rapid growth of population in the world. Presently, sludge output in China, US and EU has been over 1100, 800 and 900 million tons of dry solids per year, respectively. Several harmful components can be found in sewage sludge, e.g. heavy metals, pathogens and toxic organics. It is urgent to develop sustainable and environmentally friendly technologies to reduce sludge volume, realize the energy and resource recovery from sewage sludge, and decrease the negative impact during sludge treatment and disposal.
A variety of sludge treatment technologies and methods are available. Among the key factors influencing the choice of treatment technology is the composition of the sludge, such as moisture content, organic matters, pollutants. The moisture and organic content affects factors such as sludge transportation, mixing, drying, and dewatering. Harmful substances (especially heavy metals) may be the most unfavourable factor influencing the final disposal of the sludge. Sludge treatment and management account for up to 60% of the total cost of wastewater treatment. The cost together with the environmental impact makes it very important to recover the energy and resource from sludge, which can partially offset the high cost of sludge treatment.
We welcome articles on themes included, but not limited to:
1) Dewatering technologies of sewage sludge;
2) Thermal drying technologies of sewage sludge;
3) Production and application of sludge based biochars;
4) Sludge pyrolysis and gasification for energy and resource recovery;
5) Supercritical water oxidation of sewage sludge;
6) Sewage sludge combustion;
7) Anaerobic digestion of sewage sludge for biogas production;
8) Agricultural utilization of sewage sludge;
9) Phosphorus recovery from sewage sludge;
10) Pollutants control during sludge treatment and disposal;
11) Rheological behavior of sewage sludge;
12) Stickiness properties of sewage sludge and anti-stickiness technologies for sludge treatment;
13) Other related technologies for sludge treatment and management.
