丁苯橡胶废水中有机物的定性分析

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丁苯橡胶废水中有机物的定性分析

% y- ]" P8 m9 u摘　要:固相萃取（SPE）技术与气相色谱-质谱（GC-MS）、气相色谱-傅立叶红外光谱（GC-FTIR）技术结合，用于丁苯橡胶（SBR）生产过程中废水中的有机物的定性分析。每次使用0．18～0．15mm粒径的GDX-502吸附剂2g，1000mL废水，25mL二氯甲烷进行洗脱，洗脱液浓缩至1mL后用于GC-MS和GC-FTIR定性分析。分离在50m×0．20mmi．d．×0．5μm的HP-PONA柱上进行。从SBR废水中确定23种化合物，GC-MS与GC-FTIR联用，提高了定性的准确度

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用硫酸亚铁和过氧化氢混合体系处理丁苯橡胶生产废水

) {5 M/ E' ]5 ?$ ^, a  T* |摘　要:用硫酸亚铁和过氧化氢混合体系处理了丁苯橡胶生产废水，优化了工艺条件，进行了稳定性实验，并对处理前后的废水进行了水质分析．结果表明，不必调节废水的pH值、反应温度为55℃、Fe^2＋用量为200mg／L、H2O2用量为1000mg／L、反应时间为40min、加入氢氧化钙将氧化处理后废水的pH值调至中性进行絮凝、加入用量为1 mg／L的聚丙烯酰胺助凝，可显著降低废水中的铁离子质量浓度，提高化学需氧量去除率，同时废水的可生化性显著提高，为后续生物处理创造了良好的条件。[著者文摘]

关键词:丁苯橡胶 催化氧化 硫酸亚铁 过氧化氢 废水
+ K; ~& E  k2 U1 e6 P7 L分类号:　TQ085.4[著者标引]文献标识码：B文章编号：1000-1255（2005）05-0331-05栏目信息：开发
相关文献:主题相关
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) C" d8 k# Y& _& S1 {. a" wTreatment of waste water from styrene butadiene rubber production with mixed system of ferrous sulfate and hydrogen peroxideCao LanHua;Zhao XuTao;Zhao YingCao LanHua;Zhao XuTao;Zhao YingAbstract:The waste water from styrene butadiene rubber production was treated with mixed system of ferrous sulfate and hydrogen peroxide. The process conditions were optimized and the stability experiments were done. The quality of waste water were analyzed. The results showed that the mass concentration of Fe ion decreased remarkably and chemical oxygen demand removal increased when the pH value of waste water was not adjusted, the reaction temperature was 55 ℃ ,the amount of Fe^2＋ was 200 mg/ L,the amount of hydrogen peroxide was 1 000 mg/L,the reaction time was 40 min,calcium hydroxide was added to adjust the pH value of treated waste water to neutrality and was flocculated, and the amount of polyacrylamide 1 mg/L was added to assist flocculation. Meanwhile,the biodegradability of waste water was improved evidently and the good conditions for following biotreatment were created.[著者文摘]

Key words:styrene butadiene rubber ; catalytic oxidation ; ferrous sulfate ; hydrogen peroxide ; waste water

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催化氧化法处理丁苯橡胶生产废水
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摘　要:以活性炭或γ-Al2O3为载体，先采用浸渍工艺制备出一元或二元负载型催化剂，然后以H2O2为氧化剂对乳聚丁苯橡胶生产废水进行催化氧化法处理。研究了催化剂活性组分类型对废水处理效果的影响。结果表明：以γ-Al2O3为载体，一元及二元催化剂的COD去除率均只有20％左右；载体采用活性炭，一元及二元催化剂的最大COD去除率分别为35．6％及37．7％，二元催化剂的最佳活性组分组合为Cu-Co。

, ?$ C" d8 s9 D- ?0 t0 }关键词:丁苯橡胶 废水处理 催化氧化 催化剂 活性炭

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