增温快速测定BOD的动力学研究

应用ＢＯＤ反应动力学原理，从理论上建立了ＢＯＤ测定培养时间ｔ（ｄ）随培养温度Ｔ（℃）变化的数学模型，并导出通用增温培养时间，用通用增温培养时间２７℃下３天和３２℃下２天测得ＢＯＤ与标准法ＢＯＤ相一致，两者回归分析相关系数均大于０．９９９。     

活性污泥法的多变量最优控制Ⅲ.限制最高和同时限制平均与最高出水BOD浓度

在前文的基础上，进一步研究了更常用的限制最高和同时限制平均与最高出水有机物浓度两种排放标准的约束条件下，使其运行费用最省的最优周期控制问题。计算结果都表明，最优控制变量ＱＷ和ＤＯ的变化规律都尽可能使其满足的约束条件和节省运行费用，但是，当进水负荷变化幅度非常大时，任何控制也难于使出水水质达标，而运行费用还会大幅度增大。     

BOD_5测定中的反推取样法

根据 BOD5测定中的最佳状态 ,推导出 BOD5测定中的取样量公式 ,并结合实际检测结果确定了使用本公式的误差范围 ,指出了本方法尤其适用于有数据积累的污水常规监测及实验室内质控样的分析     

微生物传感器快速测定BOD标准方法的技术说明

国家环保总局颁布了微生物传感器快速测定生化需氧量（BOD）的标准方法。文章主要就标准中起草过程、主要技术指标、适用范围、干扰物质、样品贮存等主要内容及实验结果加以说明。     

叠氮化钠对亚硝酸根分解能力的探讨

分析了采用叠氮化钠修正法测定水中溶解氧时，对水中亚硝酸根含量与叠氮化钠加入量的关系。     

活性污泥法的多变量最优控制Ⅱ.限制有机物(BOD)的排放总量

着重研究了有限制有机物排放总量时，使其运行费用最低的最优周期控制问题。通过增加新的状态变量和用补偿函数法，将本课题的有约束条件问题化为无约束条件问题，并提出了最优长参数的动态搜索法来修改传统的梯度法，从而较完善地解决了多变量最优周期控制的计算问题。     

微核技术监测煤矿塌陷区水体水质污染的研究

用蚕豆微核技术对淮北煤矿塌陷区的水体水质进行监测，同时测定了水体的CODcr和BOD5c结果表明：淮北煤矿塌陷区水质已经受到轻、中度污染；蚕豆微核技术与CODcr、BOD5具有一定的相关性，同样可以指示水体污染程度。用蚕豆微核技术可以监测煤矿塌陷区水质污染。     

臭氧氧化处理化工污水厂尾水

采用臭氧氧化工艺处理某化工污水厂尾水,考察了臭氧投加量对废水处理效果的影响,并进行了反应动力学研究。实验结果表明,最佳臭氧投加量为67 mg/L,在此条件下,处理后废水的COD去除率为19%,色度去除率为90%,UV254去除率为79%,BOD5/COD为0.11。反应动力学分析结果表明:臭氧氧化去除废水COD的反应适合采用二级反应动力学进行拟合,二级反应动力学方程为y=0.000 1x+0.000 3,相关系数为0.938 5;臭氧氧化去除废水色度的反应更适合采用一级反应动力学进行拟合,一级反应动力学方程为y=0.105 0x-0.018 4,相关系数为0.990 3。     

Syntrophic co-culture of Bacillus subtilis and Klebsiella pneumonia for degradation of kraft lignin discharged from rayon grade pulp industry

In order to search the degradability of kraft lignin, the potential bacterial strains Bacillus subtilis (GU193980) and Klebsiella pneumoniae (GU193981) were isolated, screened and applied in axenic and co-culture conditions. Results revealed that mixed culture showed better decolorization efficiency (80%) and reduction of pollution parameters (COD 73% and BOD 62%) than axenic culture. This indicated syntrophic growth of these two bacteria rather than any antagonistic effect. The HPLC analysis of degraded samples of kraft lignin has shown the reduction in peak area compared to control, suggesting that decrease in color intensity might be largely attributed to the degradation of lignin by isolated bacteria. Further, the GC–MS analysis showed that most of the compounds detected in control were diminished after bacterial treatment. Further, the seed germination test using Phaseolus aureus has supported the detoxification of bacterial decolorized kraft lignin for environmental safety. All these observations have revealed that the developed bacterial co-culture was capable for the effective degradation and decolorization of lignin containing rayon grade pulp mill wastewater for environmental safety.     

INDUCED OXIDATION OF STREAMS AND WATER QUALITY CONTROL INSTITUTIONS1

The proof is rapidly mounting that instream aeration is a technically and economically feasible supplement to secondary treatment of wastes, an alternative to tertiary waste treatment. Some phenomena remain unexplained; and competing technologies, especially those employing molecular oxygen, are being explored vigorously. However, there are convincing arguments in favor of aeration on theoretical grounds, proved technology is available; and the first installations have already been made. While remaining questions are being further investigated, it is time to consider in more detail the broader aspects, as to the institutional, legal, and political hurdles to be overcome before advantage can be taken of the new technology. This paper first summarizes the state-of-the-art as far as technology is concerned; and then outlines the institutional problem.