BOD_5TraK仪器测定水中5日生化需氧量

BODTraK仪器测定水中 5日生化需氧量 ,操作简便 ,测定直接、快速。五日生化需氧量在 0- 35 0mg/L浓度范围内 ,相对误差在 - 5 2 %— 6 4 %。葡萄糖 -谷氨酸校核实验结果BOD5值为 2 10mg/L- 2 2 3mg/L     

因地制宜发展北方小城镇污水稳定塘处理技术

通过借鉴内蒙古呼和浩特市和集宁市稳定塘设计、运行成功经验，结合太原市娄烦县实际情况，设计出适合当地地理、气象等自然条件并具有一定特色的稳定塘处理工程。在对其工艺介绍的基础上，总结特点，提出建议。本文希望以此探索出适合北方小城镇污水处理的稳定塘示范工程，使之得到进一步推广。     

BOD5测定的简捷方法研究

目前国内外普遍规定20±1℃培养5天,分别测定样品培养前后的溶解氧(简称DO),二者之差即为BOD5值.对同一水样,只测出培养前的任一稀释倍数水样的DO值,通过计算便可准确得出其它稀释倍数水样的D0值.通过对不同浓度下BOD5实测值与计算值进行比较,计算出相对误差进行分析,结果都达到了水质监测实验室质量控制指标-准确度允许差.因此,这种计算方法是切实可行.     

矿区生活污水厌氧处理工艺中试研究

通过分析高效厌氧反应器（UASB）处理矿区生活污水的中试，为工业化应用获得了可靠的基础参数。     

Acid mine-drainage toxicity testing

The BOD inhibition test, the activated sludge respiration inhibition test, and the Microtox® Bioassay procedure were examined for their potential as rapid toxicity screening methods for acid mine drainage (AMD) and for setting toxicity threshold levels in receiving waters. The BOD inhibition test proved to be unsuitable due to the high chemical oxygen demand of the toxicant. The long incubation time (minimum 5 d at 20°C) allowed growth of chemo-autotrophic bacteria and resulted in excessive flocculation and precipitation of metals, making accurate and meaningful measurements of inhibition impossible. The activated sludge respiration inhibition test was successful in measuring AMD toxicity, and for deriving toxicity threshold levels for the basic heterotrophic community in surface waters. However, it is a very time-consuming technique and is not sensitive enough to be used as a routine screening technique. The variability in toxicity was found to be due to the availability of metals as well as the effect of pH on metabolism. Simple linear models were derived to estimate inhibition within surface waters. Prediction of the inhibition caused by AMD can be made as long as the pH of the river water after mixing and the dilution of the AMD are known. Most accurate predictions are made using equations for specific pH ranges, but a useful estimation of inhibition can be obtained using the general equation: inhibition (%) = -2.34 pH + 6.41 AMD (%) + 22.1. The Microtox® Bioassay method, although expensive, was rapid and simple to use. It was the most sensitive test of the three, with the toxic response of marine bacteria increasing notably from 5 to 15 min due to the presence of bivalent metals in the toxicant. The problem of repeatability and reproducibility encountered with the activated sludge inhibition test was overcome with the highly standardised Microtox® method, making it an ideal screening method for AMD. However, the advantage of the activated sludge inhibition test is that the types of heterotrophic micro-organisms found in activated sludge are similar to those found in receiving waters such as the Avoca River and so more meaningful toxicity threshold values can be obtained.     

泥沙对黄河水质参数COD、高锰酸钾指数和BOD5的影响——三论黄河的COD值与高锰酸钾指数不能真实反映其污染状况

研究了黄河泥沙含量与COD、高锰酸盐指数和BOD5等水质参数间的关系,揭示了当前黄河COD和高锰酸盐指数监测与评价中存在的问题.结果表明,在上述3个描述耗氧有机物污染程度的参数中,BOD5能真实地反映黄河的有机污染状况,而COD和高锰酸盐指数,不论是用含泥沙的浑水样品测得的数值,还是用滤除掉泥沙的清水样品测得的数值,均在相当程度上夸大了黄河的水污染程度.这种夸大作用在未污染和轻污染河段尤为显著.作者认为,在使用COD和高锰酸盐指数等参数对黄河水质进行评价时,不宜使用直接测得的数值,而应使用经"泥沙有机质本底量"校正的数值.     

浅谈生物化学需氧量质控考核

简要概述了在环境监测质量控制考核中,如何保证生物化学需氧量测定的可靠性和准确性.     

近年来国内稀释法测定BOD5研究进展

论述了近年来国内在稀释测定生化需氧量（ＢＯＤ５）中有关稀释倍数的研究成果；分析评价了一些确定稀释倍数的数理公式；总结了稀释法测定ＢＯＤ５的基本要求。     

生化需氧量智能生物检测仪在废水控制分析中的应用

为解决快速测量生化需氧量，生化需氧量智能生物检测仪对多种废水的实际测定表明，操作简单，测量周期为３０ｍｉｎ，精密度为±１０％左右，特别适用于污水处理中控制分析及批量样品的分析测定。     

测定废水BOD5时水样稀释倍数的确定

根据测定BOD5所须具备条件,经过理论推导,得出水样稀释倍数的大致范围,对多种工业废水测试证,表明方法简便易行。