SLUDGE CHARACTERIZATION OF KHARTOUM PETROLEUM REFINING WASTEWATER TREATMENT PLANT- KHARTOUM-SUDAN

Clearance of sludge has made a major task in latest periods. In the current study from KPRWTP were investigated concerning physicochemical characteristics & disposal options. Organic content petroleum clay soil was 0.23 ±0.09% and 0.186±0.1%, respectively. Metals average concentration: Chromium: 130.95±27.32 mg/kg Arsenic: 0.899±0.434 lead: 47.83±21.44 Cadmium: 18.33±9.04 Copper: 209±31.18 Zinc: 631±159.57 Nickel: 6.6±2.44 cobalt: 35.54±10.08 manganese: mg/kg: iron: 501±5490.04 titanium: 108.3±18.33 mg/kg, zirconium: 2.54±0.246 Sludge up particles to some extent bigger portion compared (sludge: silt 58.9%, sand 41.1% soil: 76%, 34%). Core constituents Fe2O3 (38.45%), SiO2 (8.55%), CaO (30.35%), MgO (0.85%). According standards (NJDEPSCC) As, Cd, Cu, Pb, Ni, Zn have significantly lower concentration comparing guideline for residential nonresidential utilization. On other hand, FDEPSCTL showed Cu only metals high regarding applications only. The confirmed that heavy under investigation lesser than quantities controlled by (TCLP) (RCRA), with exception chromium content.