石化企业烟气脱硫技术选择和产业化建议

结合石化企业自备电厂锅炉的运行特点，分析当前各种脱硫工艺技术的适应性，提出发展循环镁法脱硫技术的必要性和迫切性，并对石化脱硫产业的健康发展提出建议。     

冷挤大型法兰面螺母的工艺研究

以大型法兰面螺母为例 ,论述了用无缝钢管冷挤大型法兰面螺母工艺的可行性     

以运行费用函数为基础制定超标污水收费标准

根据现行的上海市和国家的超标污水征收标准的特点，提出制定新标准的５项原则。新标准的制定方案中，确定以ｙ＝ａ．ｘ＾β费用函数基础；用数理统计等方法，通过对污染排放标准，处理深度和处理费用３者关系的处理，得出二类污染物中，１级收费标准比现行２级收费标准上升３０％、２级收费采用现行标准、３级收费标准比现行标准下降２０－３０％；并提出污染物收费的计算公式，经对方案的论证和测算，说明其有效好的可行性。     

Hydrogen storage and distribution systems

Hydrogen storage and transportation or distribution is closely linked together. Hydrogen can be distributed continuously in pipelines or batch wise by ships, trucks, railway or airplanes. All batch transportation requires a storage system but also pipelines can be used as pressure storage system. Hydrogen exhibits the highest heating value per weight of all chemical fuels. Furthermore, hydrogen is regenerative and environment friendly. There are two reasons why hydrogen is not the major fuel of toady’s energy consumption: First of all, hydrogen is just an energy carrier. And, although it is the most abundant element in the universe, it has to be produced, since on earth it only occurs in the form of water. This implies that we have to pay for this energy, which results in a difficult economic task, because since the industrialization we are used to consuming energy for free. The second difficulty with hydrogen as an energy carrier is the low critical temperature of 33 K, i.e. hydrogen is a gas at room temperature. For mobile and in many cases also for stationary applications the volumetric and gravimetric density of hydrogen in a storage system is crucial. Hydrogen can be stored by six different methods and phenomena: high pressure gas cylinders (up to 800 bar), liquid hydrogen in cryogenic tanks (at 21 K), adsorbed hydrogen on materials with a large specific surface area (at T < 100 K), absorbed on interstitial sites in a host metal (at ambient pressure and temperature), chemically bond in covalent and ionic compounds (at ambient pressure), oxidation of reactive metals e.g. Li, Na, Mg, Al, Zn with water. These metals easily react with water to the corresponding hydroxide and liberate the hydrogen from the water. Finally, the metal hydroxides can be thermally reduced to the metals in a solar furnace.     

专业煤港粉尘总量控制方法的研究

在对煤港起尘源和总量进行详细调查和科学确定的基础上，研究一种实用的专业煤港粉尘总量控制的技术方法。     

中国公路建设项目环境保护管理综述

综述了中国公路建没项目环境保护管理的有关规定，包括环境保护管理的内容与程序、分类管理、环境影响评价市批与环境影响咨洵收费管理等。     

废水中优先控制污染酚的HPLC分离-电化学检测

研究了 HPL C分离 -安培法检测四种优先控制污染酚的色谱条件。在 Shim- pack CL C- ODS柱上 ,以 0 .1mol/L Na H2 PO4 +0 .0 5 mm ol/L EDTA· 2 Na+1% CH3 COOH(p H3.0 ) +5 0 % CH3 OH作流动相 ,氧化电位 +1.0 V检测。工作曲线的线性范围在 0～ 30μg/ml,检测限达 ng/m l     

野生动物资源保护管理的价值观

野生动物资源作为一种可更新资源,与人类生活密切相关。发展经济使生态环境受到很大破坏,并涉及野生动物的生存环境。阐述野生动物资源对人类社会的科学价值,引起人们对野生动物资源的重视,以便更好地保护和管理野生动物资源。     

全国环境区划技术方法探讨

本文对全国环境区划的原则、指标、分区方法,等级单位划分等问题进行了探讨     

Effects of the insect growth regulator (S)-methoprene on survival and reproduction of the freshwater cladoceran Moina macrocopa

This study examines the acute and chronic effects of the insecticide (S)-methoprene on the survival and reproduction of the freshwater cladoceran Moina macrocopa. In laboratory toxicity tests, the 24- and 48-h LC50 values for (S)-methoprene were 0.51 and 0.34 mg litre(-1), respectively. Survival, longevity and fecundity were reduced at 0.05 mg litre(-1) and higher concentrations. At 0.005 and 0.01 mg litre(-1), longevity and fecundity increased slightly as compared to control animals. If environmental concentrations of methoprene do not exceed 0.05 mg litre(-1), as is generally the case, application of this insecticide is unlikely to induce detrimental effects on natural cladoceran populations. The stimulatory effect of very low levels of methoprene on reproductive performance is consistent with the hypothesis of a regulatory role of juvenile hormone-like compounds in crustacean reproduction.