查询词典 cod

When the concentration of metamorphic amylum production wastewater in the experiment was 12 640 mg/L and the optimal hydraulic retention time was 48 h, the removal efficiency of COD was 85.9%.

试验用变性淀粉废水的COD浓度为12 640 mg/L，最佳HRT为48 h，此时COD去除率85.9％。

Gull , dupe , slang , befool , cod , fool , put on , take in , put one over , put one across

cod：概述 cod即化学需氧量是在一定的条件下，采用一定的强氧化剂处理水样时，所消耗的氧化剂量。

The experimental results show that, the contract columniation is 1333.2 mg/L in COD concentration, and fragmentation and compaction columniations are 582.4 mg/L and 2112.4 mg/L respectively, under the condition of landfill and leachate recirculation in equivalent volume after 60 day's recirculation.

实验结果显示：在填理垃圾量和渗滤液循环量相同的条件下，经过60d的厌氧渗滤液循环，对比垃圾柱的出水COD浓度为1333.2mg/L，而破碎垃圾柱和压实垃圾柱出水的COD浓度分别为582.4mg/L和2112.4mg/L。

COD in process wastewater of ephedrine extraction is classified according to its dissolubility.

依据溶解性对麻黄碱提取工艺废水中COD作了分类，该废水中的COD主要以溶解态存在并可大量酸

The effect of high-concentration bromide ion in industrial wastewater on COD determination was studied.

研究了工业废水中高浓度溴离子对COD测定的干扰，考察了有机物浓度、溴离子浓度与表观COD值之间的关系，并初步探索了隐蔽溴离子的方法。

And also we analyzed the best time of exposition, the best time of deposition, the best COD concentration of the water from the infall during the period of SBR method, and meanwhile, analyze the result.

分析了SBR工艺阶段的最佳曝气时间、最佳沉淀时间、最佳进水COD浓度等，并对其结果进行讨论。得出最佳曝气时间为8 h，最佳沉淀时间为2 h，最佳进水COD浓度在310 mg/L左右。

The lanolin in the flocculent deposit was been extracted by solvent of toluene. A high removal rate of COD can been also got by SPAM only, and raised with the concentration of SPAM. The removal rate of COD reached 94% when the concentration of SPAM was 300mg/L, but the floccules were difficult to deposit and filtrate.

絮凝沉淀物中的羊毛脂以溶剂甲苯提取，单独使用絮凝剂SPAM，COD的除去率也很高，且随SPAM的浓度增大而增大，当SPAM浓度达300mg/L时，COD除去率可达94%，但絮凝物沉降困难，也无法过滤。

When A〓-A〓-O-A〓 system, using fixed beds as anaerobic and anoxic reators and draft-tube fluidised bed as aerobic reactor (total hydraulic residence time 26. 2h, 9, 5, 7. 2 and 5h for each stage, and recycle ratio of mixed liquor from oxic reactor to the first anoxic reactor 5: 1), is used, the removal rates of COD, NH〓N and TN reach 97, 95. 5 and 90% respectively (influent COD, NH〓-N and TN 1204. 8, 274. 3 and 443mg/l respectvely).

采用A〓-A〓-O-A〓流程和简捷硝化-反硝化过程，以固定床作厌氧反应器和缺氧反应器，以内循环式生物反应器作好氧反应器，系统总水力停留时间为26.2h，各段停留时间分别为9h，5h，7.2h和5h，好氧反应器和第一级缺氧反应器之间的混合液回流比为5：1，系统进水COD为1204.8mg/l，NH〓-N为274.3mg/l，TN为443mg/l时，COD、NH〓-N和TN的去除率分别可达97%、95.5%和90%。

After operating for 80 days, the phase of acidification revealed a diameter of granular sludge up to 2～8 mm, a sludge concentration of 73.61 kg·m -3 , a gas-producing rate of 740.0 mL·g -3 COD removed , and a COD volume load...

运行 80 d后，酸化相颗粒污泥直径为 2～ 8mm ，污泥浓度为 73.61kg.m-3，COD去除的产气率 74 0 。0 m L 。g-1，COD容积负荷为 116.0 6kg。

The curve of work in rapid determination of COD of printing and dyeing is settled through lots of expemiments, referencing normal curve and data involved. It is applied to following experiments in determination of COD of wastewater.

3参照COD的标准测定法及相关资料，通过多次试验，并参照标准曲线，建立了印染废水中COD快速测定的工作曲线。

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。