Phiri, Angela Sonile Evaluation of sewage sludges at Nkana Sewage Works, Kitwe thesis supervised by P. Majura - School of Built Environment, Department of Civil Engineering and Construction 2005 Subjects--Topical Terms: ENGINEERINGCIVIL ENGINEERINGSEWAGE DISPOSAL PLANTS--ZAMBIA LC Class. No.: THE/PHI/SBE/37/2005