USE OF SEWAGE SLUDGE IN SOIL COMPOSITION

Abstract

Utilization of sewage sludge is the problem of many cities. But the presence of heavy metals in them is the main problem for their use as components of fertilizers and as a part of soil composition. In vegetative experience, the use ofTyumentreatment facilities sewage sludge as a part of soil composition was studied. It is established that test culture sprouts experienced suppression when sprouted on the 3:1 mix of sewage sludge and peat, an essential decrease in all biometric indicators was observed. The 3:1 mix of soil with sewage sludge has an essential negative effect on the energy of sprouting and the length of root system. The three-component 2:1:1 mix of soil + peat + sludge the sprouts significantly exceeded control in the mass of root system and mass of sprouts. Thus, sewage sludge can be used as a part of soil composition of 2:1:1 soil + peat + sludge mix. The pure sludge form and the 3:1 mix with peat can not be used because of the increased amount of heavy metals.