查询词典 cod

The nursery water was the best, when microencapsulated diets of "OK" and rotifera were blended at the percentage of 80% and 20%, the nursery water quality was the best during the rearing period, the highest concentration of NH3-Nt (NH3-Nm) was 1.025mg/L (0.0836mg/L),and the highest concentration of NO2-- N was 0.0236mg/L. When larvae emerged, the concentration of COD was 1.526mg/L, Puyrrop Hta was 1000 Entries/ml, and the metamorphic rates of all periods exceeded symmetrically 97%, and the survival rates also higher than the control group fed pure crude diets. The emergence status in P7 period was described as follows: the metamorphic rate: 73.33%; the average tail weight: 2mg; average body length: about 7.604mm; which were 18.30%, 19.3%, 8.4% higher than that of control group respectively.

其中80％欧开牌微胶囊饲料和20％卤虫配合使用的育苗效果最好，在整个育苗期间该实验组水质较好，NH_3-N_t(NH_3-Nm)含量最高为1.025mg／L(0.0836mg／L)，NO_2~--N_2含量最高为0.0236mg／L，出苗时COD为1.526mg／L，甲藻类含量为1000个／ml，幼体各期的变态率较稳定均衡，均大于97％，成活率也高于只投喂天然饵料的对照组，至仔虾第7天(P_7)出苗时，出苗率为73.33％，平均尾重为2mg，平均体长达7.604mm，分别比天然饵料的对照组高出18.30％、19.3％和8.4％，各项出苗指标均明显高于对照组(P＜0.05)；且虾苗活泼健壮、体表洁净、均匀度高。

When the dosage of PAC with 75% of base saturability is 0.6 g\L water, the removal rate of COD is 69%, removal rate of SS is 84%, the treated wastewater can meet the requirement of the discharging standard

对于选用的75%的PAC，当投药量为0.6g\L时，COD 去除率达69%，SS 去除率为84%，处理后的废水达到国家排放标准。

The treatment of the grey water of paper industry from Xihuafeng, Wuzhi, Henan province has been stated as follows: When the dosage of PAC with 75% of base saturability is 0.6 g/L water, the removal rate of COD is 69%, removal rate of SS is 84%, the treated wastewater can meet the requirement of the discharging standard

对于河南武陟县西滑丰造纸厂选用的75%的PAC，当投药量为0.6 g/L时，COD去除率达69%，SS去除率为84%，处理后的废水达到国家排放标准。

The main resultsshowed that the average removal efficiency on Total Nitrogen with planted Phragmites communis and Canna indica were higher than 90% for 1 day and 3 days, but the removal efficiency with planted Scirpus validus and Acorus calamus changed from 51.90% for 1 day to 90.90% for 3 days; The removal efficiency was not significantly different from each other on Total Phosphorus except for Phragmites communis; The combination of Phragmites communis and Canna indica, Typha orientalis and Acorus calamus were good at removing COD; the removal efficiency on NH_4~+-N was the highest with planted Acorus calamus.

结果显示，芦苇和美人蕉组合对总氮的去除率在停留1天和3天时均达到90％以上，而水葱—菖蒲组合变幅较大，从停留1天的51.90％增加到停留3天的90.90％；植物对TP的去除率除了芦苇组合偏低以外，其它植物差别不明显；芦苇—美人蕉组合和香蒲—菖蒲组合对COD去除较好；菖蒲组合对NH_4~+-N去除效果最好。

For struvite precipitation, at the optimum operating conditions of pH 9 and MAP stoichiometric ratio of 1:1:1, ammonium nitrogen and COD levels were reduced by as much as over 97.0% and 50.0%, from 2132 mg l-1 and 4113 mg l-1 to 46 mg l-1 and 2057 mg l-1, respectively.

结果发现，对于MAP沉淀法，pH值为9、Mg2+：PO3-4：NH+4比例为1：1：1时，NH+4-N和COD的去除率分别在97.0%和50.0%以上，浓度分别从2132 mg l-1和4113 mg l-1降低到46 mg l-1和2057 mg l-1。

COD removal for succinic acid degradation was at the range of 54.4～98.3％ for different catalysts in 30 min.

催化剂在30 min内对丁二酸降解的COD去除率为54.4～98.3％。

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。

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。

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%。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。