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https://elib.belstu.by/handle/123456789/14608| Title: | Reagent precipitation of hardness ions by carbonate-containing builders |
| Authors: | Sumich, A.I. Eshchenko, L. S. Alekseyev, A. D. Fedorova, O. Yu. |
| Keywords: | карбонат натрия карбонатсодержащие композиции солевые композиции жесткость воды |
| Issue Date: | 2014 |
| Publisher: | BSTU |
| Citation: | Reagent precipitation of hardness ions by carbonate-containing builders / A.I. Sumich [et al.] // Proceedings of BSTU. No. 3. – Minsk : BSTU, 2014. – P. 55-58 |
| Abstract: | Phase composition of carbonate containing builders obtained by neutralization of proton containing reagents with sodium carbonate is investigated. Itis shown that the builders are a mixture consisting mainly of Na[2]CO[3] · NaHCO[3] · 2H[2]O, Na[2]CO[3] · H[2]O and salts of the corresponding acids. The mixture is able to reduce total water hardness with 3.9 to 1.6–1.7 mmol-eq·l{ -1}. It is found that the builders containing Na[2]CO[3] · NaHCO[3] · 2H[2]O, Na[2]CO[3] · H[2]O and CH[3]COONa · 3H[2]O remove hardness as well as Na[2]CO[3], Na[3]PO[4] ·12H[2]O and STPP at the same flow rate. |
| URI: | https://elib.belstu.by/handle/123456789/14608 |
| Appears in Collections: | 2014, № 3 |
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