试论水质管理与饮水安全

随着生活水平的不断提高，人们对饮用水质量提出了更高的要求，而水环境质量的普通恶化又使人们不得不考虑饮用水的安全性。在简介了我国水资源现状的基础上，文中阐述了水质问题的重要性和我国水体环境质量的严峻性，指出了水质问题不仅制约着社会经济的发展，更直接地丰人们饮用水的安全性，已成为进入21世纪我国水资源问题的主要矛盾；在分析了我国水资源水质管理存在问题的基础上，从法律、法规、政策、经济等方面，着重探讨了加强水质管理与解决水资源供需矛盾和保证饮用水安全的关系。     

气动絮凝动力学机理探讨及试验分析

对气动絮凝动力学机理进行进一步探讨,并在设定的絮凝条件下,进行试验室小试,分析气动絮凝对浊度、COD等污染指标的去除效果和提高溶解氧的意义,并简单比较了其气动絮凝与机械絮凝的差异。通过机理探讨和试验效果分析,展望气动絮凝方式进行污水强化一级处理的研究方向。     

Effects of environmental factors on the production and release of matrix-bound phosphine from lake sediments

Effects of pH, temperature, and oxygen on the production and release of phosphine in eutrophic lake sediments were investigated under laboratory tests. Results indicated that the elimination of matrix-bound phosphine was accelerated under initial pH 1 or 12. Phosphine levels could reach maximum under initial pH 10. The contents of phosphine increased with the addition of alkali under pH 4–12. The rates of phosphine production and release from lake sediments varied with temperature. 20°C was the most favorable temperature for the production of matrix-bound phosphine. Oxygen showed little effect on matrix-bound phosphine. Matrix-bound phosphine concentrations in lake sediments were concluded to be dependent on a balance of natural generation and depletion processes. Translated from Acta Scientise Circumstantiae, 2005, 25(5): 681–685 [译自: 环境科学学报]     

Acid resistance of methanogenic bacteria in a two-stage anaerobic process treating high concentration methanol Wastewater

In this study, the two-stage upflow anaerobic sludge blanket (UASB) system and batch experiments were employed to evaluate the performance of anaerobic digestion for the treatment of high concentration methanol wastewater. The acid resistance of granular sludge and methanogenic bacteria and their metabolizing activity were investigated. The results show that the pH of the first UASB changed from 4.9 to 5.8 and 5.5 to 6.2 for the second reactor. Apparently, these were not the advisable pH levels that common methanogenic bacteria could accept. The methanogenic bacteria of the system, viz. Methanosarcina barkeri, had some acid resistance and could still degrade methanol at pH 5.0. If the methanogenic bacteria were trained further, their acid resistance would be improved somewhat. Granular sludge of the system could protect the methanogenic bacteria within its body against the impact of the acidic environment and make them degrade methanol at pH 4.5. The performance of granular sludge was attributed to its structure, bacteria species, and the distribution of bacterium inside the granule. Translated from Acta Scientiae Circumstantiae, 2004, 24(4): 633–636 [译自: 环境科学学报]     

钢结构件生产加工项目环境影响评价技术浅议

介绍了钢结构件生产加工项目环境影响评价中工程分析、污染防治措施以及清洁生产等方面的环境影响评价要点，以期为同类项目的环境影响评价、污染治理和环境管理提供参考。     

畜禽养殖业的清洁生产途径

现有畜禽养殖的生产工艺落后、资源消耗量大、环境污染严重，通过推行清洁生产技术，可以有效解决畜禽养殖业的环境问题、提高畜禽养殖业的经济效益，实现畜禽养殖业的可持续发展。     

EM菌强化SBR处理生活污水的试验研究

研究了EM-SBR处理生活污水的工艺特征和EM菌的最佳投加周期.结果表明:EM-SBR反应器在非限制性曝气方式下处理低浓度生活污水,有机负荷宜控制在0.22～0.40kgCODCr/kgMLSS·d,氨氮负荷宜控制在0.030kgNH3-N/kgMLSS·d以下,泥龄可控制在5～28d之间.EM菌的最佳投加周期为15个周期.     

妨碍国有工业企业推行清洁生产的几个问题

分析不利于国有工业企业推行清洁生产的六方面问题：认识偏差，缺乏激励机制，缺乏足够的资金，技改中新技术含量低，缺乏人才和政府执行力度不够，结合实际情况初步探讨解决办法。     

光电化学法处理水体中腐殖酸的初步研究

结合９０年代欧美学者提出了高级化学氧化过程（Ａｄｖａｎｃｅｄｃｈｅｍｉｃａｌｏｘｉｄａｔｉｏｎｐｒｏｃｅｓｓ，ＡＯＰ）原理，提出了并建立了一套光电化学联用的新用于处理难以生物降解的腐殖酸废水，实验表明，在通电１ｈ加光条件下（Ｉ＝０．２Ａ）总有碳（ＴＯＣ）去除率达到９０％，色度去除率达到９５％。     

灰色生长曲线与万元产值废水量预测

基于ＧＩＭ（１）灰色线性幂函数曲线，研究开发出ＧＰＭ（１）这一新的灰色生长曲线，并建立了ＧＰＭ（１）简捷的参数辨别方法。研究表明，ＧＰＭ（１）概念明确，结论可信，精度令人满意，比传统的皮尔生长曲线在应用上有着更大的优越性。为具有生长规律的非线性灰色环境系统的分析、预测和决策提供了新途径。