Biodegradation Rate of EDTA and IDS and Their Metal Complexes

Ethylenediaminetetraacetic acid (EDTA), when used as a main chelator for complex plant microfertilizers, causes many negative environmental effects; therefore, new compounds or use of the known to replace EDTA have been widely studied. In present study, biodegradation rate, (Raphanus sativus) growth stimulation and ecotoxicity towards Daphnia magna Chlorella vulgaris iminodisuccinic (IDS), considered an alternative in agriculture, has investigated. It was demonstrated that IDS’ rate over 28 days 28.1%, which is 4.5 times higher than EDTA. Similar EDTA, complexation with metals led increase degradation by 1.8-fold. The majority were degraded within first 7 days. GI values IDS implemented at concentrations 100 mg/L (both pure form combination microelements) 2.4–2.6 those index EC10 estimated be 2.0 g/L 5.8 D. Ch. are 4.1- 10-fold respectively. can concluded promising agent chelate microelements nutrition.