Comparison Study of Manometric Respirometric Test and Common Chemical Methods in the Determination of BODbold7 in a Pulp and Paper Mill's Wastewaters.

Journal of Automated Methods & Management in Chemistry Pub Date : 2006-01-01 DOI:10.1155/JAMMC/2006/90384

Katri Roppola, Toivo Kuokkanen, Hannu Nurmesniemi, Jaakko Rämö, Risto Pöykiö, Hanna Prokkola

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引用次数: 17

Abstract

The biological oxygen demand (BOD) test is widely used in many wastewater treatment plants. The conventional BOD tests are usually time-consuming and the results are often out of date for process control purposes. The aim of this research was to compare the manometric respirometric test with common chemical methods in the determination of BOD of wastewater from a pulp and paper mills as well as to evaluate the BOD (7) values of both wastewaters from the short-term respirometric measurements. The results showed that there were differences in the BOD(7) values of paper mill samples measured by conventional and respirometric methods. The main cause was found to be the dilution solution used in the conventional BOD tests. Using the same mineral solution in the respirometric measurements diminished the difference remarkably. Evaluation of the BOD(7) value after two or three days incubation was proved to work very well and the estimated results were close to measured values (deviations 1%-12%).

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加压呼吸法与常用化学法测定制浆造纸废水中BODbold7的比较研究。

生物需氧量(BOD)试验在许多污水处理厂得到广泛应用。传统的BOD测试通常耗时，并且结果对于过程控制而言往往是过时的。本研究的目的是比较压力呼吸法试验与普通化学方法测定纸浆和造纸厂废水的BOD，并通过短期呼吸法测量评估两种废水的BOD(7)值。结果表明，常规法和呼吸法测定的造纸样品BOD(7)值存在差异。发现主要原因是常规生化需氧量试验中使用的稀释液。在呼吸测量中使用相同的矿物溶液可以显著减少差异。经证明，在孵育2 - 3天后对BOD(7)值进行评估非常有效，估计结果与实测值接近(偏差为1%-12%)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Automated Methods & Management in Chemistry 化学-分析化学

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>12 weeks