查询词典 bod

Its are main the purpose is the purify rate that raises COD, BOD, restore the self-purification ability of water system and alexipharmic function, increase the environmental size of water system.

其主要目的是提高COD、BOD的去除率，恢复水体的自净能力和解毒功能，提高水体的环境容量。

The development and application of BOD microbial sensor was introduced in this paper.

介绍了BOD微生物传感检测仪的研究进展及应用前景。

Based on the previous research results, a flow chart for BOD rapid analysis was determined.

在前期研究工作的基础上，确定了生物传感器快速测定BOD的实验流程。

BOD removal and nitrification can be achieved in a single step of treatment with no change in operation.

去除BOD和硝化反应可以通过单独的一步反应实现，不需要变更操作。

The removal efficiency of COD, BOD and SS was 88.4%, 90.3%, and 95% respectively.

BBAF 对COD、BOD、SS 的去除率分别为88.4%、90.3%和95%。

The effects of temperature on the stability of measurement result and the initial BOD concentration on measurement time were investigated.

研究了温度对检测结果的影响，初始BOD浓度与检测时间的关系，并探讨了检测结果的重现性及其线性范围。

Figure 1 shows the BOD/COD ratio (the standard for 5 and 21 days) for six organic compounds.

图1显示了BOD / COD的比率（5和21标准天）6有机化合物。

The results showed that the sludge settled properly at a influent BOD/P of 100/0.8. When the BOD/P was 100/0.6 and 100/0.3 respectively, an excessive growth of viscous Zoogloea with high moisture content was observed and non-filamentous bullring occurred. When the value of influent BOD/P was 100/0.4, more serious non-filamentous bulking occurred. Furthermore, under the condition of phosphorus deficiency the effect of microorganism on the nitrogen and phosphorus sources utilization rate were also studied in the experiments.

结果表明在进水中BOD/P为100/0.8以上的条件下，污泥的沉降性能良好；当进水中BOD/P分别为100/0.6和100/0.3时，出现高含水率的黏性菌胶团过量生长的现象，发生非丝状菌膨胀；在进水中BOD/P为100/0.4的条件下，发生更严重的非丝状菌膨胀，试验中还研究了磷缺乏条件下微生物对氮源和磷源利用率的变化。

A numerical calculation program is written up for the various solution methods in this paper and the program is being used in various aspects of inverse problem of environmental hydraulics, including inverse problem in reverse process of one-dimensional unstable diffusion, inverse problem in reverse process of convection-diffusion, inverse problem for the dispersion coefficient in water quality model, The inverse problem of coefficient identification for nonlinear Boussinesq equation, parameter identification inverse problem for water quality model, the inversion of parameter of BOD-DO water model, the inverse problem of the source of convection-diffusion, identification of the steady-state permeability for two dimensional isotropic medium, two-dimensional steady inverse problem of convection-diffusion and parameter identification inverse problem for two-dimensional parabolic equation, etc.

对本文提出的各种算法，编制了数值计算程序，并把它应用于环境水力学反问题诸多领域，包括污染物一维非恒定扩散逆过程反问题，对流扩散方程逆过程反问题，河流水质纵向弥散系数反问题，非线性Boussinesq方程反问题，河流水质多参数识别反问题，BOD-DO水质模型参数反演问题，对流—扩散方程源项反问题及二维恒定各向同性介质渗透系数反问题，二维定常对流——扩散方程及二维抛物型方程参数控制反问题等。

An organically modified silicate-PVA as an immobilization material for Hansennula anomala was investigated to develop an optochemical BOD sensor for the determination of BOD.

通过有机改性溶胶凝胶PVA包埋方法固定微生物菌株，以氧光化学传感器作为二次传感，制备了响应良好的光化学BOD微生物传感器。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。