so4

Experimental Research on Enhanced Coagulation to Micro-polluted Raw Water Treatment by [ Fe ( OH ) SO4 ] n

碱式硫酸铁强化混凝处理微污染原水实验研究

In order to evaluate the wax resistance of SO4 coating , model tests are made with steel plates acting as wax collectors .

为了评价SO4涂料覆盖层的防结蜡效果，采用板式结蜡器进行了模拟试验。

Nitrogen-doped TiO2 was prepared by Ti ( SO4 ) 2 solution reacting with NH3 aqueous solution .

采用硫酸钛与氨水反应制备掺氮TiO2。

But when we treated with Al2 ( SO4 ) 3 , these gene expression level is declined . 7 .

但是当我们用A12（S04）3处理后这些基因的表达水平却下降了。

Complex Fe2 ( SO4 ) 3 was used as catalyst for the synthesis of isooctyl chloroacetate .

以自制的复合硫酸铁Fe2（SO4）3&K2SO4催化剂合成了氯乙酸异辛酯。

Influence of Washing Method of Assay Apparatus to Determining SO4 ~ ( 2 - ) and Cl ~ - with Ionic Chromatogram Method

分析器具洗涤方法对离子色谱法测定SO4~（2-）和Cl~-的影响分析

Ti ( SO4 ) 2 / SiO2 was an environmental friendly catalyst with high activity , excellent selectivity , easy separation , and short reaction time .

该催化剂活性高，选择性好，易分离，反应时间短，是一种环境友好催化剂。

Effect of La2 ( SO4 ) 3 and IBA on Rooting in Sweet-scented Osmanthus Cutting

硫酸镧和IBA对桂花插条生根的影响

The static and dynamic experiments were studied in order to further investigate the defluorination performance of modified activated alumina by Fe2 ( SO4 ) 3 solution .

为了进一步考察Fe2（SO4）3改性活性氧化铝的除氟性能，进行了静态和动态试验评价。

The conclusions have been summarized as following : ( 1 ) The electrochemical properties of Fe2 ( SO4 ) 3were studied .

主要工作如下：（1）研究了Fe2（SO4）3材料的电化学性能。

And then the magnetic flocculation test is going on by selecting the best effect of flocculating agent ( polymerized Fe2 ( SO4 ) 3 ) .

之后选择效果最佳的絮凝剂（聚合硫酸铁）进行磁絮凝试验。

Bentonite was modified with cetyl pyridine bromide first , and then compounded with Al2 ( SO4 ) 3 this paper .

用溴代十六烷基吡啶对天然膨润土进行改性，制得CPB-膨润土，然后与Al2（SO4）3复合制得复合CPB-膨润土。

With catalyzed by Zr ( SO4 ) 2 '4H2O / SiO2 we have found this method has the merits of short reaction time , high yields and easy to control .

而以硅胶负载四水硫酸锆催化裂解1，1&二乙酸酯，其方法具有反应时间短、收率高、环境友好、易操作等特点。

The uniformity of mesoporous pore was improved , and the size of mesoporous pore was about 4 nm after modified by SO4 "" and Ce .

经SO4~（2-）和Ce改性的催化剂孔径均一性得到提高，孔径分布集中在4nm左右。

In this paper , the synthetic method of iso-amyl benzoate by using solid acid Zr ( SO4 ) 2 · 4H2O as catalyst has been investigated .

考察了采用固体酸Zr（SO4）2·4H2O为催化剂合成苯甲酸异戊酯。

Remarkably different from other anions , soil available SO4 ( 2 - ) was increased dramatically after soil was cultivated . The profile distribution characteristics of different anionic nutrients was different .

与其它阴离子显著不同的是.经耕作熟化后，土壤有效性SO含量急剧增加，不同的阴离子态养分在土壤剖面中的分布特点不同。

The novel potassium ionic sieve was synthesized by the way of hydrothermal growth using Al2 ( SO4 ) 3 , soluble glass and KOH as the raw materials .

本文以Al2（SO4）3、水玻璃、KOH为主要原料，采用水热合成法合成了新型钾离子筛晶体。

Comparative analyses on the wax deposition are made for different types of crude oils by using two wax collectors under the same process conditions , one coated with SO4 , the other with no coating .

在相同的工艺条件下，对几种原油在涂有SO4涂料覆盖层表面和裸露钢表面上的结蜡情况进行了对比分析。

The result indicated that GA3 , Al2 ( SO4 ) 3 and citric acid solution can improve obviously the blossom rate of weeping forsythia and the flowering time in advance .

结果表明，赤霉素、硫酸铝、柠檬酸在浓度为3%的蔗糖溶液配合下能显著提高连翘的开花率，提早开花。

Only 15.5 % Fe2 ( SO4 ) 3 compared with 0.9 % NS in GCF-AST , the significant difference in first day and third day after retraction ( p < 0.05 ) .

以生理盐水组GCF变化量为参照，15.5%Fe2（SO4）3组GCF-AST量在第一天与第三天与之有显著性差异（p<0.05）。

The treatment of the wastewater containing cation dyes by PAC or Al2 ( SO4 ) 3 as coagulant and PAM as coagulant aid have been studied by the orthogonal process .

通过正交试验研究分别用混凝剂PAC、Al2穴SO4雪3与助凝剂PAM复配对阳离子染料废水进行混凝处理。

The results show : the addition of TiO2 to Zr ( SO4 ) 2 , the crystalline structures of catalysts was anatase TiO2 , Zr ( SO4 ) 2 was amorphous ;

结果显示：添加TiO2后，催化剂表面氧化物的晶型结构主要是锐钛矿型的TiO2，没有观察到Zr（SO4）2的晶型衍射峰，Zr（SO4）2以无定型形式存在。

Comparison in different groups , to 15.5 % Fe2 ( SO4 ) 3 , the significant difference in first day and third day after retraction compared with the others in GCF variety ( p < 0.05 ) .

组间两两比较，15.5%Fe2（SO4）3组在第一天、第三天GCF变化量与其他各组均有显著性差异（p<0.05）。

Propyl Propionate was catalytically synthesized by the esterification reaction of n - propanol with propionic acid by catalysis of Ti ( SO4 ) 2 · 4H2O .

以硫酸钛为催化剂催化丙酸与正丙醇的酯化反应合成了丙酸丙酯。

After immersed in Cr2 ( SO4 ) 3 solution followed by calcining at different temperatures , Cr3 + doped porous anodic alumina ( PAA : Cr ) were prepared with different crystal structure .

以氧化铝模板（PAA）为母体，通过浸泡Cr2（SO4）3溶液掺入三价Cr离子，将掺杂的PAA煅烧使其晶化，不同的煅烧温度形成不同的相。

At present , about sulfate free radicals ( SO4 - ·) advanced oxidation technology research mostly concentrates on the degradation of organic pollutants in the soil or water , there have been very few reports on the sludge treatment .

目前，关于硫酸自由基（S04-·）高级氧化技术的研究大多集中于处理土壤或水体中的有机污染物，而将硫酸自由基应用于处理污泥的研究国内外少见报道。

Solid super acid SO4 / TiO2 / La3 + was prepared and used for the catalytic synthesis of isoamyl propionate . The yield of isoamyl propionate reaches 95.7 % under the proper conditions .

制备固体超强酸SO42-/TiO2/La3+催化合成了丙酸异戊酯，酯化率可达95.7%，且催化剂可重复使用。

The compound flocculant of M-25 and Al2 ( SO4 ) 3 can improve the flocculation efficiency and the removal rate of COD , which reach to 77.2 % and 79.8 % respectively .

M-25与Al2（SO4）3复配后，可提高处理效率，絮凝率和COD去除率分别达到77.2%和79.8%。

The application of ammonium sulfate (( NH4 ) 4 SO4 ) in soil was in the order of 0 , 2 , 4 , and 16g / pot respectively , at the flowering stages .

花期土壤施硫酸铵量分别为0、2、4和16克/盆。

The experiment used the phosphoric-acid-ester-amine as a flocculant , and cooperated with liquor of Al2 ( SO4 ) 3 to dispose waste water of nature gas well in east of Sichuan , and attained available result .

以磷酸酯胺盐作为絮凝剂，与Al2（SO4）3溶液复配使用，在对川东天然气钻井废水的絮凝处理实验中获到一定效果。