新沂河污水资源化生态工程可行性研究

新沂河污水资源化生态工程是以蔷薇河送清水工程为依托 ,将新沂河北偏泓作为排污专道 ,排污专线可构建成为五级河道稳定塘。其技术路线是控源导流 ,清污分流 ,通过河道稳定塘来自然降解城市污水。本文以科学的预测数据论证了工程的可行性。     

碱渣海洋倾倒定点化学追踪试验

碱渣海洋倾倒，在夏季温度、盐度和密度跃层存在下，以ｐＨ、浊度为化学追踪指示值，于北黄海５号倾废区进行的三个航次定点化学追踪试验，讨论了碱渣入海后的沉降速度，扩散时间和飘移距离。选择ｐＨ、浊度值作为碱渣海洋倾倒化学追踪指示值是一种尝试。实验室模拟及海上现场试验结果表明，它们在碱渣海洋倾倒中定量描述碱渣在海水中的时空分布是可行的。可作为研究碱渣海洋倾倒区划分合理性应用，并可提供基本依据。     

碱渣对海洋水环境中PO_4~（3－）的吸附动力学特征

本文作为碱渣倾倒对海洋水环境影响现场调查的先期研究，从理论上推导了固─液体系的二级吸附动力学模型。在室内试验的基础上，利用该模型对碱渣─海水混合体系的吸附试验数据进行了理论分析。认为碱渣对海水中磷酸盐的吸附是二级动力学过程。并且提出了碱渣─海水体系中碱渣含量对吸附反应速率影响大小的“强度指数”概念。应用该模型预测了不同混合比例条件下碱渣对海水中不同初始浓度磷酸盐的平衡吸附量和平衡浓度。理论分析发现，预测的平衡吸附量和平衡浓度之间符合乔姆金等温吸附方程，说明了海水中磷酸盐在碱渣表面上的吸附是遮盖率不大的单层化学吸附，与本文的前提假设相符合。     

湿法脱硫中亚硫酸钙溶解特性的实验研究

亚硫酸钙的溶解浓度对氧化速率有非常重要的影响,课题主要研究CaSO3的溶解特性,描述了CaSO3在不同条件下(温度、pH、溶解时间T、搅拌速度、初始加入量等)溶解量的变化规律,进而找出CaSO3的最佳溶解条件,以达到提高氧化速率及石膏的生成率,防止堵塞和结垢的目的。     

循环流化床脱除氯化氢研究

在直径200mm、高2560mm自制循环流化床上进行了脱除氯化氢的研究。实验结果表明本实验采用的循环流化床尾气净化装置，在士湿两种状况下的净化效率都比周类型装置有较大提高。当喷水活化增湿以后，净化效率可达90％以上，并考察了停留时间、Ca/Cl 当量比、粒径和入口氯 化氢浓度等因素对氯化氢脱除效率的影响。证实延长停留时间、增大Ca/Cl当量比、减 小粒径和增加入口氯化浓度有利于提高氯化氢脱除效率。     

淮河入海水道南泓生态工程规划研究

在“控制导流,清污两制”的战略指导下,借助淮河入海水道的水工设施,利用南泓作为三淮一洪地区城市污水的调度通道和生态处理场所,尾水最终入海。研究表明,南泓生态工程净化能力显著,基本不会对沿线环境卫生、地下水、下游地面水及海口生态构成影响,是淮阴市三淮一洪以至下游滨海、阜宁地区未来污水安全可靠的出路。     

钙稳态失调与镉肝细胞毒性关系的研究

分别从细胞外钙对镉肝细胞毒性的影响.细胞内总钙和游离钙含量变化以及钙移位酶活力的变化等方面探讨了镉对肝细胞的毒性与细胞内钙稳态失调的关系.结果表明:镉对大鼠游离肝细胞的毒作用并非由于引起细胞外钙内流所致,也不是由于干扰了细胞内钙隔离系统功能所致.     

Does the long-term application of calcium superphosphate lead to an increase of the soil rare earth element contents?

In order to test whether the long-term application of calcium superphosphate leads to an increase of the soil rare earth element contents, superphosphate fertilized soils were sampled and compared with superphosphate-free soils. Spectrophlame inductively coupled argon plasma atomic emission spectrophotometer （ICP-AES） was applied to quantify the rare earth elements （REEs）. The total rare earth element contents in calcium superphosphate from Zhijin County, west part of Guizhou Province, China （produced by the sulphuric acid treatment of the apatites） are about 2.54 mg/g. Between 38 and 189 gREEs/hm^2 per year （available for plants, estimated by 2% citric acid） will be introduced into the soil solution when applying 320 kg superphosphate/hm^2 per year. The long-term application of the latter will increase the REE content by about 18% in the soil surface layer in these areas. A statistically significant increase of the content of the rare earths in some cultivated soils should not be neglected.     

Morphology of single inhalable particle in the air polluted city of Shijiazhuang, China

In the typical air polluted city of Shijiazhuang,single inhalable particle samples in non-heating period,heating pened,dust storm days,and snowy days were collected and detected by SEM/EDS(scanning electron microscopy and energy dispersive X-ray spectrometry).The particle morphology was characterized by the 6 shape clusters,which areirregular square,agglomerate,sphere,floccule,column or stick,and unknown,by quantitative order.The irregular square particles are common in all kinds of samples;sphere particles are more,and column or stick are less in winter samples;in the wet deposit samples,agglomerate and floccule particles are not found.The surface of most particles is coarse with fractal edge,which can provide suitable chemical reaction bed in the polluted atmospheric environment.New formed calcium crystal is found to demonstrate the existence of neutralized reaction,explaining the reason for the high SO2 emission and low acid rain frequency in Shijiazhuang.The three sorts of surface patterns of spheres are smooth,semi-smooth,and coarse,corresponding to the element of Si-dominant,Si-Al-dominant,and Fe-dominant.The soot particle is present as floccule with average size around 10 μm,considerably larger than the former reported results,but wrapped or captured with other fine particles to make its appearance unique and enhance its toxicity potentially.The new formed calcium crystal,the 3 sorts of sphere surface patterns,and the unique soot appearance represent the single inhalable particle's morphology characteristics in Shijiazhuang City.     

铝酸钙渣处理含氟废水研究

用铝酸钙渣吸附去除废水中的氟离子,试验了焙烧温度、初始氟离子浓度和接触时间对氟离子去除的影响,并作了吸附等温线。结果表明,最佳焙烧温度为800℃,吸附平衡时间为40min,最大吸附容量为12.0mg/g,吸附等温线符合B.E.T模型。因此,用铝酸钙渣处理含氟废水经济可行。