植物激素“802”对凤眼莲耐寒及去污能力的影响

叶面喷施“802”能提高凤眼莲耐寒和去污能力,“802”的喷施浓度以100mg/l为宜。但“802”不能提高凤眼莲对水温的极端忍受限,水温低于5℃时风眼莲仍会死亡。     

Microalgae cultivation using an aquaculture wastewater as growth medium for biomass and biofuel production

Microalgae as a main feedstock has attracted much attention in recent years but is still not economically feasible due to high algal culture cost. The objective of this study was to develop a comprehensive eco-friendly technology for cultivating microalgae Platymonas subcordiformis using aquaculture wastewater as growth medium for biomass and biofuel production. Platymonas subcordiformis was grown in pretreated flounder aquaculture wastewaters taken from different stages. Each of wastewater contained different levels of nutrients. The biomass yield of microalgae and associated nitrogen and phosphorous removal were investigated. The results showed that algal cell density increased 8.9 times than the initial level. Platymonas subcordiformis removed nitrogen and phosphorus from wastewater with an average removal efficiency of 87%-95% for nitrogen and 98%-99% for phosphorus. It was feasible to couple the removal of nitrogen and phosphorus from wastewater to algal biomass and biofuel production. However, further studies are required to make this technologies economically viable for algae biofuel production.     

Chemical constituents of Prunella vulgaris

Nine compounds were isolated from the spikes of Prunella vulgaris by various kinds of chromatography. Their structures were established on the basis of spectral analysis as polygalacerebroside (1), ursolic acid (2), β-amyrin (3), quercetin (4), quercetin-3-O-β-D-galactoside (5), β-spinasterol (6), stigmasterol (7), β-sitosterol (8), daucosterol (9). Compound 1 was isolated from this genus for the first time. Phytochemical investigation on the spikes of P. vulgaris provided chemical constituents diversity, which were performed to facilitate further development and utilization of P. vulgaris pharmaceutical resource.     

北京地区电镀项目环境保护验收特点及验收监测关键环节研究

北京市的电镀企业规模小,污染很大。根据建设项目竣工环境保护验收规范要求,针对北京市电镀项目环保验收特点,作者总结了此类项目验收的工作重点,提出废水、废气与固体废物并重、污染物浓度排放及总量排放兼顾的实施方案。除此以外,文章还具体介绍了在电镀项目的环保验收中怎样结合环保管理部门的要求,进行废气、废水的现场监测及固体废物处置、环境管理检查等工作。本文不仅能为环境管理部门提供管理、规范电镀行业污染的有效方法,同时,也对电镀企业提高其污染治理和资源综合利用水平指明了方向,大大促进了电镀产业逐渐向环境友好型产业发展,最终实现电镀无害化的发展目标。     

我国危险化学品分类中GHS积木原则的探讨

介绍了GHS的积木原则和发达国家及地区GHS危险化学品分类积木原则的采纳情况,提出了我国GHS危险化学品分类中采用GHS分类积木原则的建议。     

CLP法规对我国实施GHS的启示

介绍了目前国内实施GHS的现状及面临的问题,通过分析《欧盟物质和混合物的分类、标签和包装法规》（CLP法规）的特点及其与GHS的异同,为我国实施GHS提出建议。     

石化企业HSE管理平台设计与实现

阐述了石化企业HSE管理平台的设计思想和主要功能,介绍了HSE平台的特点.该平台的建立和运行,将提高企业安全管理的效率,使之更加科学化、系统化、规范化、制度化.     

Vertical distributions of COS and CS2 in Beijing City

Vertical distributions of COS and CS2 were measured at a meteorological tower in Beijing City. The mixing ratios of COS and CS2 are in the range of 371--1681 pptv and 246--1222 pptv, respectively. The significant high mixing ratios of the two compounds at ground level and distinct vertical distributions indicated the existence of strong anthropogenic sources of COS and CS2 in Beijing City. Domestic stoves and central heaters are important sources of COS during winter season. Cesspools may play significant role on COS over whole seasons. Chemical productions may be responsible for the observed hiah mixina ratios of CS2 in Beiiina Citv.     

基于传感器的职业安全健康在线监测系统初探

在安全生产总体形势逐步好转的情况下,中国职业病危害致病因素中粉尘和噪声占有不可忽视的分量.本文通过对国内外在线监测技术的发展现状的详细分析,引入国内外先进的粉尘和噪声在线监测技术构建了职业安全健康在线监测系统基本架构,对其基本工作性能和实际能产生的工作效果进行描述,并对其产生的科技进步性进行阐述.     

测定水中总磷消解方法的比较探讨

针对钼酸铵分光光度法测定水中总磷消解步骤繁琐、消解管不好固定的现象,采用高压蒸汽锅、微波消解仪和恒温干燥箱方式消解样品,同时对三种消解方式所做的标准曲线和实际水样中总磷的含量进行实验对比。分析结果显示,用微波消解仪和恒温干燥箱消解法测定的样品总磷含量与高压蒸汽锅消解方式相比,数据无显著性差异,方法准确度、精密度符合要求,表明这两种消解法切实可行。