A simple method for preparing chelated calcium based on the black liquor generated by the pulp and paper industry
| Autor: | Guiting Yang, Donghong Cheng, Yan Liu, Cheng Dongdong, Min Zhang, Hongmeng Zhao, Yao Sun, Songjun Huang, Junfei Sao, Ting Xu, Xiancheng Huang |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Environmental Pollutants & Bioavailability, Vol 31, Iss 1, Pp 56-59 (2019) |
| Druh dokumentu: | article |
| ISSN: | 2639-5940 26395940 |
| DOI: | 10.1080/26395940.2018.1563501 |
| Popis: | A simple method for preparing chelated calcium from black liquor produced in the paper industry was studied. Various factors influencing the chelation rate of Ca2+ were studied, including the system pH, reaction temperature, reaction time, reaction solution ratio. The optimum reaction conditions are as follows: the system pH, reaction temperature, reaction solution ratio (V(CaCl2):m (Black liquor)) and time were 5.6, 25°C, 1:20 and 60 min, respectively. The maximum Ca2+ chelation rate was 88.75%. The characteristics of chelated calcium fertilizer in black liquor were studied by Fourier transform infrared, scanning electron microscope . The results indicated that the CaCl2 could be chelated by the black liquor from paper-making industry, and showed a high chelating rate. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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