查询词典 cod

Automatic screening algorithm of abnormal data for linear regression calculation, improved algorithm for kinetic analysis and temperature calibration algorithm for enzyme analysis were successfully used in the portable spectrometer. 4. More than ten kinds of chemical reagent kits for rapid determination of environment monitoring and food safety coupled with the portable spectrometer were studied, such as Cr, Pb, Cd, NO2-,,NO3-, formaldehyde, sodium formaldehyde sulfoxylate, COD, NH4+, PO43+, CN-, F, Cl2, etc.

本文研究了六价铬、铅、镉、亚硝酸盐、硝酸盐、甲醛、吊白块、COD、氨氮、磷酸盐、氰化物、氟化物、余氯与总氯等十余种与环境监测和食品安全检测有关的快速检测试剂盒，并与目前实验室标准分析方法进行了分析化学特性的对比研究。

Experiments showed that the photocatalytic reduction of inorganic oxidizing species and the photocatalytic oxidation of the organic compounds are synergically. This indicates that the COD value is proportional to the amount of the photocatalytic reduction of inorganic oxide.

实践表明，无机氧化物光催化还原和有机物的光催化氧化是协同进行的，因此我们可以由光催化还原无机氧化物量的变化来定量计算水样中的COD值。

Three-year-old daughter of my house, from the beginning of three months, I have in accordance with the Provincial Maternal and Child Health Institute expert instructions eat Teli margin calcium citrate tablets and Iraq could be the new cod liver oil (one under the age of two and above), are generally fed milk for half an hour after the re-feeding calcium, Iraq can not be a new and calcium with food, with food would cause hypercalcemia.

我家宝宝三岁了，从三个月开始，我就按照省妇幼保健院的专家指示吃司特立枸缘酸钙片和伊可新鱼肝油(分一周岁以下和以上两种)，一般是喂奶以后半小时再喂钙片，伊可新也不能与钙片同吃，同吃会引起高血钙症。

Using thermophilic oxidation process to treat kitchen garbage, and determine the effects of temperature, COD, moisture and weight on the reaction process.

采用高温好氧法对厨房垃圾进行了处理，测定温度、COD、含水率、重量对反应过程的影响。

The floc sludge of PFC can be removed 75% organics and the effluent COD is 800mg/L under condition of 1. 5 days HRT and treated by thermophilous EGSB anaerobic reactor, and the reactor volume organic load is 2. 65kgCOD/m〓.

投加聚合氯化铁混凝剂得到的絮凝污泥在35℃环境中控制1.5d的水力停留时间，出水有机物含量可以降到800mg/LCOD〓左右，去除率在75％左右，厌氧反应器最大负荷为2.65kgCOD/m〓。d； 5。

Research content and research object. The Coagulant Dosage Automatic Control System is discussed emphatically. Including the relation is put up between target standard and the infection factor by date analyzed chart and educational established and sum up the best working point. The target standard including SS COD and OIL .The infection factor including the dosage of PAC PH Mill INTENSION and TIME. On the basis of craft character and control request, it makes a selection of scheme to the whole control system. Finally a scheme is chosen and described as follows: CPU222 of SIEMENS PLC S7-200 is used as the control kernel. V606IC TOUCHER is used as communication man and machine. Controlling pump, compressor, metric pump of system by gathering andanalyzing the flow, PH of raw water .

重点探讨系统的投药自动化，包括系统的数学模型建立的过程，通过数据分析，采用图表和方程式建立系统排放指标(SS、CODcr、含油量)，与各种因素(PAC用量、PH值、搅拌强度、时间)的关系，确定系统的最佳工作点；根据系统工艺特点以及控制要求，对控制系统设计方案进行了选择，确定以西门子PLC(S7-200 CPU222)为控制核心，V606IC10触摸屏作人机界面，通过对原水流量和PH计采样、分析，实现系统中的泵、风机、计量泵等控制；文中从功能上简要地介绍监控系统和给出了自动化原理构成图、PLC软件流程图及部分主要程序。

COD elimination efficiency of the treated water can reach 75% or more, and the transmittancy can reach 92%～99%.

用自制阳离子聚丙烯酰胺与PAC配合处理废纸再生造纸废水，出水COD 去除率达75%以上，透过率达92%～99%。

COD removal efficiency of the tested water can reach 78 % or more, the transmittancy can reach 90 % or more. Compared with cationic flocculants with different cationic structures, the...

与市售几种不同阳离子结构的高分子絮凝剂相比，自制PDA样品的综合应用性能较好，具有良好的实用价值。

The results show that each cationic flocculant has optimal dosage range, generally from 50 mg/L to 80 mg/L. COD removal efficiency of the tested water can reach 78%or more, the transmittancy can reach 90%or more.

研究结果表明，各种阳离子絮凝剂量的最佳使用范围一般在50～80 mg/L，上清液COD去除率达到78%以上，透过率达到90%以上。

Compared with the sample of higher cation, the sample of higher molecular weight in the treatment is more important. After treatment, COD of wastewater can be reduced by 74%～77% and the transmittancy can reach 92%～99%. The formed floc. is solid and can easily be dewatered.

对废纸再生造纸废水的处理使上清液COD去除率达74%～77%，透过率达92%～99%，均超过作对比用的进口产品的处理效果，且下层絮体较大、坚韧、易于脱水。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样