Thermodynamic study on evaporation crystallization of high saline wastewater from lead-acid batteries
| Autor: | Zhang Zhengmin, Peng Zhiyang, Xu Weigang, Yao Hongqi, Ma Zhilei, Shi Chengcheng, Lin Zhang, Liu Xin, Chen Xu, Bu Shi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Evaporation Analytical chemistry chemistry.chemical_element 02 engineering and technology Conductivity Calcium 021001 nanoscience & nanotechnology Condensed Matter Physics Saline water 01 natural sciences law.invention Inorganic Chemistry chemistry Wastewater law Metastability 0103 physical sciences Materials Chemistry Crystallization 0210 nano-technology Lead–acid battery |
| Zdroj: | Journal of Crystal Growth. :126166 |
| ISSN: | 0022-0248 |
| DOI: | 10.1016/j.jcrysgro.2021.126166 |
| Popis: | The metastable zone width (MSZW) of Na2SO4-NaCl-H2O from high saline water of lead-acid batteries was studied at different temperatures by the conductivity method in the experiment. Results show that the metastable width of Na2SO4-NaCl-H2O increases with the increase of temperature. The MSZW of Na2SO4-NaCl-H2O containing calcium ion is larger than that of the solution without calcium ion. The MSZW at pH 1 is approximately the same as that at pH 2, and the MSZW is larger than that of the control group. The width of the metastable zone decreases by about 2.5 K from 0 r/min to 100 r/min, and 2.2 K from 100 r/min to 120 r/min. The width of the metastable zone increases to 7.5–8 K when the speed increases from 120 r/min to 140 r/min. The metastable zone width of the solution containing lead is larger than that of the control group, and the difference is in the range of 2.1 ~ 3.9 K. |
| Databáze: | OpenAIRE |
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