Environmental acceptable use of sewage sludge in soil remediation

Achievements

Calibration of analytical systems for the following study of the dehydrated sewage sludge addition effect on the growth of selected plants was realized. The samples of dried sewage sludges obtained at the scheduled project partners meeting (2013, April 10th held in the Faculty of Natural Sciences, University of SS. Cyril and Methodius in Trnava) have been analysed using the basic chemical analytical procedures (conventional preparation of the samples for analytical procedures,

determination of pH-value, cation-exchange capacity CEC, carbonates). Obtained samples of dried sewage sludge and by the newly manufactured pelleting equipment produced soil additives derived from the given sewage sludge were analysed and characterized according to conventional and special chemical analytical procedures (pH, pHzpc, cation-exchange capacity CEC, water holding capacity, granularity, determination of carbonates, elemental analysis - especially for heavy metals, total organic carbon content).

 

Limit level (mg.kg-1 of dry matter) - concentration limit value of risk substances in sewage sludge  under Act no. 188/2003 Z. z. in Slovak Republic

Sewage sludge (mg.kg-1 of dry matter) - in accordance with article Characterization of soil additive derived from sewage sludge: A. Suňovská et al. 2013

                    The figure made by: The University od SS. Cyril and Methodius in Trnava

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