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首页> 美国卫生研究院文献>BioMed Research International >Treatment of Slaughter House Wastewater in a Sequencing Batch Reactor: Performance Evaluation and Biodegradation Kinetics
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Treatment of Slaughter House Wastewater in a Sequencing Batch Reactor: Performance Evaluation and Biodegradation Kinetics

机译：顺序间歇反应器中屠宰场废水的处理：性能评估和生物降解动力学

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Slaughterhouse wastewater contains diluted blood, protein, fat, and suspended solids, as a result the organic and nutrient concentration in this wastewater is vary high and the residues are partially solubilized, leading to a highly contaminating effect in riverbeds and other water bodies if the same is let off untreated. The performance of a laboratory-scale Sequencing Batch Reactor (SBR) has been investigated in aerobic-anoxic sequential mode for simultaneous removal of organic carbon and nitrogen from slaughterhouse wastewater. The reactor was operated under three different variations of aerobic-anoxic sequence, namely, (4+4), (5+3), and (3+5) hr. of total react period with two different sets of influent soluble COD (SCOD) and ammonia nitrogen (NH4 +-N) level 1000 ± 50 mg/L, and 90 ± 10 mg/L, 1000 ± 50 mg/L and 180 ± 10 mg/L, respectively. It was observed that from 86 to 95% of SCOD removal is accomplished at the end of 8.0 hr of total react period. In case of (4+4) aerobic-anoxic operating cycle, a reasonable degree of nitrification 90.12 and 74.75% corresponding to initial NH4 +-N value of 96.58 and 176.85 mg/L, respectively, were achieved. The biokinetic coefficients (k, K s, Y, k d) were also determined for performance evaluation of SBR for scaling full-scale reactor in future operation.
机译：屠宰场废水中含有稀释的血液，蛋白质，脂肪和悬浮固体，因此该废水中的有机物和营养物浓度变化很大，残留物被部分溶解，如果在河床和其他水体中相同，则会造成高度污染放任不管。已经在需氧-缺氧顺序模式下研究了实验室规模的间歇式分批反应器（SBR）的性能，以同时从屠宰场废水中去除有机碳和氮。反应器在需氧-缺氧顺序的三种不同变化下运行，即（4 + 4），（5 + 3）和（3 + 5）hr。两套不同的进水可溶性COD（SCOD）和氨氮（NH4 + -N）水平在1000±50 mg / L和90±10 mg / L，1000±50之间的总反应时间mg / L和180±10 mg / L。可以观察到，在总反应时间8.0？hr结束时，完成了86％至95％的SCOD去除。在（4 + 4）有氧-缺氧运行循环的情况下，达到了合理的硝化度90.12和74.75％，分别对应于NH4 + -N的初始值分别为96.58和176.85 mg / L。 。还确定了生物动力学系数（k，K s，Y，k d），用于未来规模运行的SBR规模满规模反应器的性能评估。

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