原土

在此基础上，直接以Ca蒙脱石为原土合成层柱粘土，取得了较好的效果并确定了最佳的合成工艺条件。

Based on these , the PILC was successfully straightly synthesized with Ca - montmorillonite and optimum conditions were obtained .

施用有机肥的土壤全氮、全磷、重组磷及C/N比均呈提高趋势，pH值降低，其原土和重组复合体的阳离子交换量较高。

The contents of total nitrogen , total phosphorus , content of exchangeable cation ( CEC ) and C / N specific ratio were all improved .

高岭土原土表面酸性很弱，酸改性后，同一种酸改性高岭土随着高岭土中Al2O3的浸出，高岭土中SiO2/Al2O3的增大，高岭土的表面酸性增强；

Surface acidity of kaolin is very weak before it is treated by acid , surface acidity of kaolin is strengthened with the increase of SiO2 / Al2O3 of acid-modified kaolin .

吸附试验表明：Al-柱撑蒙脱石较膨润土原土对水溶液中的Cr（Ⅵ）具有更强吸附去除能力。

And the sorption tests also show that the A1 pillared interlayer montmorillonite exhibits a strong capacity of adsorbing the Cr ( ⅵ ) in aqueous solution at a pH of about 4 .

主要研究结论如下：1.未添加外源重金属的原土中Cd、Pb均以残渣态为主，分别占45.83%、63.39%。

Main conclusions of the study are as follows : 1 . Residual fraction is the most component of Cd and Pb in original soil , respectively , accounting for 45.83 % and 63.39 % .

对湖北省的主要旱地土壤种植多茬作物后油菜生产锰毒的原因进行了研究。结果表明，供试土壤pH值较原土样下降了1.0个单位。

The main upland soils of Hubei Province were planted for 4 ~ 6 crops of cotton and rape in pot experiment ( rotation ), and in last crop of rape , soil pH decreased 1 . 0 unit .

为提高蒙脱土的层间距和表面亲油性，用苄基三甲基氯化铵（BTMA）对蒙脱土原土进行改性，制备了苄基三甲基氯化铵交联蒙脱土（BTMA-PILCs）。

Montmorillonite is modified with benzyltrimethylammonium ( BTMA ) chloride to prepare the pillared clay ( PILC ), designated as BTMA-PILCs .

添加纤维素可增大原土胡敏素（Hu）的碳含量，而木质素中极少存在相似于铁结合胡敏素（HMi）和不溶性胡敏素（HMr）的有机分子。

Cellulose added could increase the C contents of different components of Hu in soil , but there were little organic molecules resembled to HMi ( Iron combined with humin ) and HMr ( Non-soluble humin ) existed in lignin sample .

3种水稻土在去除DOM后，土壤有机氮的累积矿化量显著下降，降幅为11.2%～18.3%（平均12.9%），而旱地红壤仅下降7.6%，与原土没有显著差异。

The cumulative mineralization of soil organic N in paddy soils after DOM removal decreased significantly ( 11.2 % - 18.3 % ) with an average of 12.9 % . Compared with paddy soils , the cumulative mineralization of red soil organic N in upland only decreased by 7.6 % .

种植植物的原土基质人工湿地和底泥基质人工湿地的研究。

The original soil matrix wetland plants and sediment matrix of constructed wetlands .

4号土壤原土复合量增加，而追加复合量却下降；

Complex quantity of sample 4 increased , but additional complex quantity decreased .

机械研磨对原土和钠化土片层结构影响不大；

Machine - grinding affected the layer - structure of MMT and Na-MMT weakly ;

长期不同施肥处理下黄泥土原土和团聚体颗粒组的菲含量变化

Effects of Long-Term Fertilization on Phenanthrene Contents of Original Paddy Soil and Aggregate Fractions

原土有机碳含量高的土壤，原土复合量大。

It could be found that the higher organic carbon content , the bigger complex quantity .

渤海湾港城盐碱原土的快速改良研究

Study on the Rapid Improvement Techniques of Original Alkali Saline Soil of the Port City in Bohai Bay

和原土相比，施肥淋溶后，各处理条件下的紫色土比表面积都有所增加。

After fertilization and leaching , the specific surface area of purple soil all increased compared with natural soil .

A/O法投加硅藻原土处理城镇污水脱氮除磷小试研究

Study on nitrogen and phosphorus removal from municipal wastewater by lab-scale A / O technology with additional raw diatomite

凹凸棒原土及盐酸改性凹凸棒对水中Al~（3+）的吸附

Adsorption of Al ~ ( 3 + ) in water with raw soil of attapulgite and hydrochloric acid modified attapulgite

实验结果表明：有机化膨润土对水溶液中Cr6+、Hg2+、Cu2+和Zn2+金属离子的去除率都比原土有显著提高；

It was shown that the effect of adsorbing metal ions in water with organobentonite was obvious compared to bentonite .

此外，还使得有机粘土的含水量和吸湿率较原土有显著降低。

Water content and the rate of moisture adsorption in organic clays are lower than those of the original clays .

回填密实的砂砾料和预应力小木桩的联合作用可取代原土传递支撑力。

The combined action of backfilled dense sand gravel and prestressed wood piles can replace the transmission strutting force of soil .

实验表明：有机膨润土对金属离子的吸附能力明显优于原土；

It was shown that the effect of adsorbing heavy metal ions from water with organobentonite was obviously compared to bentonite .

5号、6号和7号土壤添加0.72%有机物料时原土复合量及追加复合量最大。

Complex quantity and additional complex quantity of sample 5 , 6 and 7 were the highest under 0.72 % level .

随着有机物料施用量的增加，1号、2号和3号土壤原土复合量及追加复合量都增加；

Complex quantity and additional complex quantity of sample 1 , 2 and 3 increased with the increasing quantities of organic material .

采用水悬浮法对蒙脱石原土进行钠离子交换反应和提纯处理得到纯度较高的钠型蒙脱石。

An Na-montmorillonite with high purity was obtained by the water suspension method using the ion exchange reaction and suspension purification treatment .

采用硅藻原土代替硅藻精土作为微生物载体处理城镇污水具有较好的处理效果。

The feasibility of using raw diatomaceous earth ( DE ) instead of refined DE as microbial carrier to treat municipal wastewater was investigated .

从温度对腐蚀行为的影响上看，原土中各个温度下的腐蚀行为相似。

From the point of view that temperature influenced on corrosion behavior , corrosion behaviors in the original soil under various temperature were similar .

其原土也具有很好的脱色能力，是一种天然的优质漂白土。

Its decolorization strength is 166 ~ 220 . Its original clay has also good decolorization capability and thus it is a good crude bleaching clay .

该区域土基强度较高，可采用原土路基夯实，压实度在90%以上。

The soil base in this area has a high intensity so the subgrade can be compacted directly with a degree of compaction above 90 % .

探讨了苯蒸气在膨润土原土、单阳离子有机膨润土及阴阳离子有机膨润土上的吸附性能、机理及影响因素。

The properties , mechanism and influence factors of benzene vapor sorption onto original bentonite , single cation organobentonites , and anion cation organobentonites were discussed .