硫酸盐

The effects of sulfate reduction of the anaerobic treatment of sulfate wastewater were studied by the operation of a series of daily feed digesters.

采用半连续流运行方式研究了硫酸盐还原作用对废水厌氧处理的影响。

Add 100-150g of finely crushed ice and stir until the m-nitroaniline has been converted into the sulphate and a homogeneous paste results. Cool to 0-5°C by immersion of the beaker in a freezing mixture, stir mechanically and add a cold solution of 18g(0.26mol) of sodium nitrite in 40 ml of water over a period of 10 minutes until a permanent colour is immediately given to potassium iodide-starch paper: do not allow the temperature to rise above 5-7°C during the diazotisation.

加入100-150g碎冰，搅拌至m-硝基苯胺成硫酸盐，把烧杯浸入到冷冻液中冷却到0-5°C，机械搅拌下于 10 min内加亚硝酸钠冷溶液（由18g(0.26mol)亚硝酸钠和40 ml 水组成），直到用淀粉-碘化钾试纸测试时，能使该试纸立即显色且不褪色：在重氮化反应时不允许温度超过5-7°C。

Some of the recent results are summarized on the characteristics of HYP and its effect on the wet-end operations of the papermaking process in the production of printing and writing paper, including internal sizing and f iller retention.

与漂白硫酸盐浆相比，高得率浆含有较多的细小纤维、木素和阴离子垃圾，同时含有较多的羧基和磺酸基等阴离子基团而使其纤维上的负电荷密度显著高于BKP纤维。

The results show that coal and gangue are involved in the microbial role; the quantity of inoculums is directly related to the quantities of gas and the contents of methane, at the same time it has a certain degree of impact on the contents of NO(superscript - subscript 3)-N, NH(superscript + subscript 4)-N, S(superscript 2-), SO(superscript 2- subscript 4), and metals; moreover, because of the microbial anaerobic fermentation, the contents of NH(superscript + subscript 3) are seriously substandard; overall, the group B which has a smaller proportion of gangue has a less impact to the environment compared to the group A which has a larger proportion of gangue.

结果表明：煤、煤矸石参与了微生物作用；接种物的加入量与产气量和甲烷含量密切相关，并对硝酸盐氮、氨氮、硫化物、硫酸盐和金属也有一定程度的影响；同时由于微生物厌氧发酵的关系，氨氮严重超标；矸石比例较小的B组对环境的影响略小于矸石比例较大的A组。

The ionization constant of H2CO3 is much higher than that of H2S in the solution , whereas the mole of CO2 is much lower than that of H2S in the sour gas of Feixianguan Formation.

在溶液中碳酸的电离常数大大高于氢硫酸，飞仙关组高含硫气藏天然气组分中的CO2相对于H2S的质量亏损和储层中有富轻碳的高温方解石充填晚期溶孔、裂缝表明储层中的晚期溶解作用是由硫酸盐热还原过程中生成的CO2引起的。

The mechanisms,characteristics and influencing factors of the sulfate reducing bacteria and the iron oxidizing bacteria are discribed in detail.

对微生物处理技术中的硫酸盐还原菌和铁氧化菌的作用机理、特征及影响因素作了较详细的介绍。

According to the count change of sulfate-reducing bacteria, iron bacteria and heterotrophic bacteria, sterilization effect of chlorine dioxide on petrochemical plant circulating cooling water is studied.

以硫酸盐还原菌数、铁细菌数以及异养菌数为指标，研究二氧化氯对石化厂循环冷却水的杀菌效果。

Adopting the counts of sulfate-reducing bacteria, iron bacteria and heterotrophic bacteria as indicators, the effect of chlorine dioxide on sterilization of circulating cooling water in petrochemical plant was studied.

以硫酸盐还原菌，铁细菌以及异养菌数为指标，研究二氧化氯对石化厂循环冷却水的杀菌效果。

The results show that activation nutrition St-12 could activate the beneficial bacteria preferably, and restrain the harmful bacteria including sulfate reducing bacteria, iron bacteria and sulfer bacteria for oil recovery to a certain degree.

结果表明，激活剂配方St-12能较好地刺激有益内源菌群落的生长，且对硫酸盐还原菌、铁细菌及硫细菌等对采油不利的细菌起到了一定的抑制作用。

In the redox zones bacterial community structure changed,and the preponderant bacteria were sulfate reduction bacteria,iron reduction bacteria,nitrate reduction bacteriacorrespondingly,however there were other bacteria in the redox zones.

各带中生物群落结构发生了明显的变化，相应地以硫酸盐还原菌、铁还原菌和反硝化细菌为优势菌群，同时也存在其他作用的细菌。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷