English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The aim of this work was the examination of the stabilization potential of sewage sludge by fly ash and lime and the investigation of the phytotoxic properties of the produced mixtures. About 0,5 m sewage sludge were mixed with the alkaline substances in various ratios and the products were stabilized for 3 months. Samples from each mixture were analyzed for the determination of their physicochemical content such as pH, moisture, and nutrients. Stabilization of sewage sludge was achieved depending upon the concentration and the type of alkaline medium, due to the pH increase of the mixture; however, the alkaline addition resulted in the reduction of the nutrients content. Phytotoxicity effects were determined by the measurement of the corresponding inhibition effects of the produced mixtures on the seed germination and root length growth of three higher plants (one monocotyl and two dicotyls). Samples obtained from the early stages of stabilization process exhibited high inhibition on seed germination and root length growth; however, these effects were reduced for samples prepared at extended stabilization times.

Study of phytotoxic properties of sewage sludge stabilised by alkaline mediums