紫苏脂肪油理化性质分析

以江西地区生长的紫苏子为原料提取脂肪油，其含油量３０％以上，并对其理化性质进行了系统的测试和分析，发现其脂肪油的碘值，皂化值均较大，具有较好的开发和利用价值     

紫芳脂肪油理化性质分析

以江西地区生长的紫苏子为原料提取脂肪油，其含油量３０％以上，并对其理化性质进行了系统的测试和分析，发现其脂肪油的碘值，皂化值均较大，具有较发了的开发和利用价值。     

CaSO4-Ca（OH）2-H2O体系相平衡（英文）

为了给含高浓度硫酸根离子的重金属废水中和法处理提供理论指导,并更好地理解硫酸钙结垢的形成机制,采用Pitzer电解质溶液理论计算298.15K时CaSO4-Ca（OH）2-H2O三元体系的溶解度,并采用光学法结合XRD测试技术测定该体系的等温平衡溶解度,采用计算和实验方法分别绘制相图。研究了5个区域的物理定义及特征点、线所表达的物理规律,并分析了各区域SO42-浓度对中和水解过程pH调节的影响。中和水解过程pH值的调节取决于体系中SO24-离子的浓度。Ca（OH）2与CaSO4·2H2O在水中溶解时,相互影响的规律体现在相图中的点、线及面上。     

污水处理厂提升泵站稳流节能优化控制系统

针对污水处理厂提升泵站普遍存在水泵机组启停频繁、集水井易发生溢流事故、泵站单元高能耗的问题,设计一种基于变参数PID控制算法和泵站分组轮询的提升泵优化控制系统,并运用于株洲市某污水处理厂。实际运行结果表明:该系统可以适应进水水量的变化,在减少水泵的启停次数,防止集水井溢流,降低系统能耗,保证安全生产方面取得了良好的效果。     

Thermodynamic equilibrium of CaSO4-Ca（OH）2-H2O system

The pc-pH diagrams of the CaSO4-Ca(OH)2-H2O system and its two subsystems at 298.15 K were constructed according to the theory of thermodynamic equilibrium. The interaction characteristics between the solubility of CaSO4(s) and Ca(OH)2(s) can be found out from the diagrams. CaSO4(s), Ca(OH)2(s) and solution coexist when the pH value of solution is about 13.2. CaSO4(s) with the minimum solubility of 0.411 g/L is in equilibrium with solution when the pH value is lower than 13.2, and Ca(OH)2(s) with the minimum solubility of 2.749 g/L is in equilibrium with solution at the pH value over 13.2, which provides a theoretical basis for the treatment and reuse of industrial wastewater, especially for the wastewater containing sulfate which can be treated by lime-milk neutralization.     

基于LSSVM的污水处理过程建模

针对基准仿真1号模型(BSM1)有耗时久、结构复杂、不利于研究和优化等缺点,提出使用多输入多输出最小二乘支持向量机(LSSVM)对污水处理过程进行建模。先介绍BSM1,再在BSM1的基础上建立基于L S S V M的污水处理过程简化模型,最后将B S M 1的仿真结果与基于L S S V M的污水处理模型的仿真结果进行比较,验证得出基于L S S V M的污水处理过程模型运行效率更高。     

Equilibrium of hydroxyl complex ions in Pb^2＋-H2O system

The thermodynamics equilibrium principle was used to construct the diagrams for the concentration of complex ions (pc) vs pH, the distribution ratio of lead hydroxyl complex ions (αn) vs pH, and the conditional solubility product of Pb(OH)2 vs pH in the Pb2+-H2O system. The relationship between the equilibrium concentration of each kind of lead hydroxyl complex ions in equilibrium with Pb(OH)2(s) and pH value was shown in the system. The minimum solubility of lead is at the pH value of 10.096-10.997. The distribution ratio of each kind of the lead hydroxyl complex ions is determined as a function of the pH value and the total lead concentration ([Pb]T). The diagram for the conditional solubility product, pKSP vs pH, shows that each kind of lead hydroxyl complex ions existing in the system is dependent upon an optimized pH value at the established concentration of [Pb]T, and that pKSP reaches the minimum at the pH value of 10.3-11.2. The results can provide a theoretical basis for removing lead ions from wastewater by the neutralization and hydrolyzation technology.     

CaSO4-Ca(OH)2-H2O体系中硫酸根的平衡浓度

测定了25℃时不同pH值下CaSO4-Ca(OH)2-H2O三元体系中SO42-的平衡浓度,考察了Na+离子的影响. 结果表明,pH值在3.0~12.0范围内SO42-平衡浓度最小,为0.01235 mol/L,基本不受pH值的影响;Na+的存在使溶液中SO42-的平衡浓度增大,且二者呈线性关系. 应用Pitzer电解质溶液理论对体系进行了活度修正,计算结果与实验测定结果基本一致. 研究结果为含SO42-工业废水处理提供了一定的理论依据.