Table 2.
Library for analysis of the activated sludge composition
| Wave number (cm−1) | Shape | Intensity | Bond | Compound(s) | Class |
|---|---|---|---|---|---|
| 3650-3200 | b | str | st O–H | Glycerol | Polyalcohol |
| b | m | Glucose | Monosaccharide | ||
| b | m | Lactose | Sacharide | ||
| b b |
m m |
Sucrose Phenol |
Saccharide phenols |
||
| 3300-2800 | b | m | st NH3 (N+–H) | Albumin | Protein |
| b | m | Ammonium sulphate | Ammonium | ||
| b | m | Dry meat extract | Peptide | ||
| b | m | Peptone G | Peptide | ||
| 3000-2840 | s (m) | str | st C–H | Glycerol | Polyalcohol |
| s (m) | m | Glucose | Monosaccharide | ||
| s (m) | m | Oleic acid | Fats | ||
| s (m) | w | Sucrose | Sacharide | ||
| 2900 | s | w | Lactose | Sacharide | |
| 2360 | s | w | st NH+ | Ammonium sulphate | Ammonium |
| 2075 | s | str | C≡N | Potassium cyanide | Cyanides |
| 2045 | s | str | SC≡N | Potassium thiocyanate | Thiocyanides |
| 1775 | s | w | st C=O | Sodium carbonate | Carbonates |
| 1710 | s | str | Oleic acid | Fats | |
| 1680 | s | str | st C=C | Phenol | Phenols |
| 1655 | s | str | st as COO− | Albumin | Protein |
| 1650-1575 | s (m) | str | Dry meat extract | Peptide | |
| 1600 | s | str | Peptone G | Peptide | |
| 1570 | s | w | def NH2 | Ammonium sulphate | Ammonium |
| 1535 | s | str | sy | Albumin | Protein |
| s | str | Peptone G | Peptide | ||
| 1515 | s | str | Dry meat extract | Peptide | |
| 1460 | s | str | st C=O | Sodium carbonate | Carbonates |
| s | str | Acid sodium carbonate | Carbonates | ||
| 1445-1350 | s | m | def C–H (skelet) | Glucose | Monosaccharide |
| s | m | Lactose | Sacharide | ||
| s | m | Sucrose | Sacharide | ||
| 1440 | s | m | def CH2 | Oleic acid | Fats |
| 1410 | s | str | CH2 | Glycerol | Polyalcohol |
| 1400 | s | str | S(=O)2 (SO4) | Ammonium sulphate | Ammonium |
| 1400 | s | str | def NH3 | Dry meat extract | Peptide |
| 1380 | s | str | N=O | Sodium nitrate | Nitrate |
| 1270 | s | s | st NO2 | Sodium nitrite | Nitrite |
| 1255 | s | m | def NH3 | Peptone G | Peptide |
| 1245 | s | m | Albumin | Protein | |
| 1235 | s | m | def C=O | Oleic acid | Fats |
| 1135 | s | s | st S=O (R–SO–OR) | Sodium sulphate | Sulphate |
| s | s | Sodium sulphite | Sulphite | ||
| s | s | Sodium thiosulphate | Thiosulphate | ||
| 1100-1040 | s (m) | s | st C–O | Glycerol | Polyalcohol |
| 1100 | s | s | st Si–O | Sodium silicate | Silicate |
| 1100-1000 | s (m) | s | st CO | Lactose | Sacharide |
| s (m) | s | Sucrose | Sacharide | ||
| 1075 | s | w | S=O | Ammonium sulphate | Ammonium |
| 1015 | s | s | C–O (CH2–OH) | Glucose | Monosaccharide |
b broad band, s sharp band, s (m) multiple sharp band, str strong intensity band, m medium intensity band, w weak intensity band, st stretching vibration, st as stretching asymmetric vibration, def deforming vibration, sy symmetrical vibration, skelet skeletal vibration