Lubna landfill

Table 5. Influence of vertical bentonite barrier on the quality of surface water in the vicinityof the Lubna landfill in sampling point No.3 (point at ditch No. 2 – see Fig.3)No. Pollution indicator UnitConcentration of pollutantsPermiss. valuesSampled in01.06.1998Sampled in04.07.2000Sampled in06.12.2001acc. to MinistryDecree1 Colour -- black light yellow Natural -2 Turbidity -- very turbid clear Clear -3 pH -- 8.4 7.8 7.8 6.0 - 9.04 Electrolytic µS/cm 21 560 1 910 1 240 12005 Dissolved matters mg/l 17 876 1 250 990 12006 Solid residue mg/l 18 620 1 268 1 036 -7 Total suspended mg/l 1 425 29 27 508 BOD 5 mgO 2/l 10 870 50 40 129 COD Cr mgO 2 /l 17 541 169 78.8 10010 Ammonium nitrogen mgN NH4 /l 290 1.8 1.9 6.011 Nitrite nitrogen mgN NO2/l 0.20 0.004 0.06 0.0612 Nitrate nitrogen mgN NO3 /l 30.0 0.1 0.6 15.013 Nitrogen of Kjeldahl m. mgN/l 1 601 44.0 11.6 -14 Chlorides mgCl - /l 4 139 365 260 40015 Sulphates2-mgSO 4 103 165 120 25016 Sulphides mgS -2 /l 3.2 0.03