自然冷能处理溴氨酸水溶液的方法

Primary Treatment of Bromamine Acid Aqueous Solution by Natural Cold Energy

以含溴氨酸(1-氨基-4-溴-蒽醌-2-磺酸钠)的水溶液为研究对象,利用北方冬季自然冷能冷冻分离含有机物的水溶液,研究有机物的冷冻分凝规律.实验结果表明:完全冻结的水样,随着冰层厚度的增加,其冰样冰融水的COD_(Cr)、TOC和吸光度值先减小,当厚度达到冰层总厚度的50%时,其值又迅速增加;加入种冰后,表层冰层的纯度有了显著提高,其COD_(Cr)、TOC分别从69.43 mg/L、12.41 mg/L降到19.27 mg/L和4.73 mg/L;受冷面积与水深比对冰晶的纯度和成冰率有一定的影响,本实验最佳值为4.81cm^2/cm.

Bromamine acid （1-amino-4-bromine-anthraquinone-2-sulfonic acid sodium） aqueous solution is selected as the sample in this study. The change of organic matter in freezing field was researched utilizing the separation of organic matter in bromamine acid aqueous solution by natural cold energy in winter. The results indicate that chemical oxygen demand （CODCr）, total organic carbon （TOC） and chroma of the thaw water decrease first, then increase fast when the thickness of ice achieves half of the total thickness of the ice sample with the ice layer increasing. The purity of the ice increases rapidly when the seed ice isadded, also the CODCr and TOC decrease from 69.43 mg/L and 12.41 mg/L to 19.27 mg/L and 4.73 mg/L. The effect of the ratio of contact area with freezing field to the depth of solution on the ice layer purity and the ratio of ice formation is also analyzed, and the optimal ratio is 4.81 cm^2/cm.