| Autor: |
Mostalygina, L V, Elizarova, S N, Kostin, A V, Mostalygin, A G |
| Zdroj: |
IOP Conference Series: Materials Science and Engineering; May 2019, Vol. 537 Issue: 6 p062047-062047, 1p |
| Abstrakt: |
On the basis of experimental data, the qualitative galvanic sludge composition has been got after reactant purification of waste water of the machine building enterprise. The research has been carried out on the degree of incapsulation of heavy metals in the system of galvanic sludge (GS) - cement-sand (CS) - bentonite clay (BC) with different percentage ratio of components. It has been stated that it took 28 days to complicate galvanic sludge with the mixture of CS and CS-BC. It has been shown that appending of 5% and 10% bentonite clay into the system GS-CS increases its sorption capacity and leads to decrease of washing heavy metals out of it. It has been defined that initial heat treatment of galvanic sludge with subsequent appending of BC ensures decrease of concentration of chromium ions, cuprum and ferrum in the water which is lower than the level of admissible concentration limit (ACL). |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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