1. Sewage sludge production, treatment and disposal in the European Union;Hall;J CIWEM,1995
2. Treatment and disposal of sewage sludge in the mid-1990’s;Hudson;J CIWEM,1995
3. A review of treatment process options to meet the EC sludge Directive;Bruce;J CIWEM,1990
4. First report on the WRc sewage sludge pumping project;Johnson,1981
5. Evaluation and role of rheological properties in sludge management;Dentel;Wat Sci Technol,1997