冶金企业浊循环水系统的水质控制

冶金企业浊循环水系统的特点是水质比较脏，主工艺用过的水不仅温度升高而且悬浮物、油、氧化铁皮等杂质增加．造成水质恶化。以天津钢管公司热处理直接水系统为例，阐述了水质控制要点及如何保证浊环水系统出水水质合格采取的措施。     

棒材净循环冷却水系统不停车清洗水质稳定技术应用

针对马钢棒材净循环冷却水系统管道、设备的腐蚀情况，结合系统工艺，介绍了该循环水系统不停车清洗水质稳定技术的应用以及水质稳定效果评价。     

提高连铸浊环水水质浅析

介绍了太钢板坯连铸水处理系统的工艺流程，分析了连铸浊环水水质存在的问题。通过对冷却塔部分、铁皮坑、水泵调速等改造，以及选用新的水质稳定剂，使水质明显好转。     

炼钢转炉烟气洗涤水系统运行与控制

针对武钢第一炼钢厂转炉烟气洗涤水系统运行存在的问题，从工艺、水质、设备的调查、分析人手，提出了有效的对策措施，并加以实施，取得了较好效果，可为同类系统的水质控制提供参考。     

蒸发循环水水质与处理浅析

本文针对氧化铝生产循环冷却水系统存在的水质差、温度高、悬浮物含量高、管道设备结垢、堵塞的问题，论述了该系统的水质，结垢机理和堵塞的原因，阐述了循环水系统的改造方案；提出了今后改造和运行中应注意的事项。     

三炼钢连铸喷淋系统水质的提高

针对武钢三炼钢厂连铸机喷嘴堵塞问题，从喷嘴堵塞物和水质分析入手进行调查，对连铸喷淋系统工艺进行改造，解决了系统水量平衡、水位波动、补水水质差等问题。     

电厂化学水处理系统在线分析仪表的优化配置

１离子交换除盐水系统的水质检测项目离子交换除盐水处理水质监测项目通常分作四部分，一是每台阳床运行水质监测，二是除碳器运行水质监测，三是每台阴床运行水质监测，四是成品水质监测。阳床监测项目为漏钠量，除碳器的监测项目为pH值，阴床监测项目为电导率及二氧化硅含量，成品水监测项目为pH值及电导率。阳床、阴床的水质检测结果是判断树脂是否失效和需要再生的唯一依据。如果检测不准，则会造成系统不经济运行或水质超标，水质超标会造成后续的锅炉和汽轮机设备结垢、偏心震动等事故，使发电系统不能正常运行，因而这四个环节的监…     

转炉除尘水水质净化工业试验研究

针对炬钢厂转炉除法水处理系统存在的问题，提出了从水质净化、水质稳定流程选择等方面进行研究的试验工作方案，本文叙述了水质净化的工业试验的过程及结果。试验结果表明，用聚丙烯酰胺作絮凝处理后沉淀池出水悬浮浓度≤１００ｍｇ／Ｌ。基本满足循环水水质要求，为水质稳定的开展创造了条件。     

加热炉循环冷却水水质稳定的探讨与实践

针对加热炉循环冷却水存在的问题，提出了水质稳定方案，完善了水质监测手段，保证了冷却水系统的安全运行。     

120 t转炉烟气除尘水系统特征及水处理技术的应用

介绍了转炉烟气除尘水浊循环系统工艺特征和水质特点，分析了系统中存在的强结垢倾向及其危害性。采用了具有创新性的水质处理技术。经过实际运行考核，达到了稳定生产、节能降耗、清洁循环水系统运行过程的效果。     

Improved Method for Aggregation of Water Quality Subindices

Alternative methods to describe water quality using an aggregate index consisting of subindices for individual water quality variables are examined. Most aggregation methods suffer from three shortcomings: Ambiguity, eclipsing, and rigidity. Ambiguity problems exist when all the subindices indicate acceptable water quality for a given use, but the aggregated index does not. Eclipsing problems exist when the aggregated index fails to reflect poor water quality of one or more water quality variables. Rigidity problems exist when additional variables are included in the index to address specific water quality concerns, but the faulty aggregation function might artificially reduce the value of the water quality index such that it does not accurately reflect the true water quality. As the number of water quality variables increases, the magnitude of the aggregated index decreases raising the issue of ambiguity again. The writers developed a mathematical formulation for aggregate indices that avoids the problems of ambiguity, eclipsing, and rigidity with respect to the number of water quality variables required to be aggregated in a given index.     

黑龙江砂宝斯金矿床水资源质量评价

砂宝斯金矿床已进入矿山建设与开发阶段,区内水资源的质量对矿山建设和开发必然会产生一定的影响。通过对矿区内水资源的水质、细菌及放射性等进行分析测试,分别从生活饮用水、锅炉用水和建筑用水3个方面对水环境质量进行了评价。研究区内地表水水质较好,符合饮用水标准,但地下水水质较差,砷、铁、锰和耗氧量等普遍超标;区内水资源均为软垢水或软硬垢水及不起泡的水;小东沟河上游为非腐蚀性水,其他水点均为半腐蚀性水;区内地下水与地表水无侵蚀性。     

Development of Water Quality Indexes to Identify Pollutants in Vietnam’s Surface Water

This study presents the first water quality indexes developed to evaluate surface water in Vietnam. The basic water quality index (WQIB) can be effectively used to evaluate the spatial and temporal variations of surface water quality as well as to identify water pollutants. The overall water quality index (WQIO) can provide additional information, particularly on toxic substances contributing to water pollution. The water quality indexes developed for this paper were applied to the national surface-water quality monitoring data taken from 1999 to 2007. Water pollutants were classified into three subcategories: organic and nutrients, particulates, and bacteria. Surface water in northern and central Vietnam was poor in quality and contained organic matter, nutrients, and bacteria. Water in the southern part was mainly polluted by bacteria. Trend analysis results reveal a deterioration in water quality in those provinces under pressure from rapid population growth, urbanization, and industrialization. Vietnam has established an official policy to ensure comprehensive nationwide water quality monitoring by 2020. The implementation of water quality indexes may provide the guiding data for sustainable water-resources management in Vietnam.     

工业锅炉水质不良的危害及水质控制环节

叙述了工业锅炉水质不良易造成的多种危害，介绍工业锅炉运行过程中水质处理、锅炉排污及水质化验分析三个应紧密配合与衔接的水质控制环节，对于工业锅炉使用单位控制好锅炉水质，做好锅炉水处理工作，保证锅炉安全经济运行有参考意义。     

Evaluating a Probabilistic Approach for Simulating Pathogen Removal at a Riverbank Filtration Site in India

In this paper, concentrations of pathogens in the influent and bank filtrate water at a riverbank filtration (RBF) site in Haridwar, India, are simulated by using a probabilistic approach. During the study of the RBF water quality in Haridwar in 2005–2006, it was observed that the river water does not meet World Health Organization and other Bureau of Indian Standards requirements for drinking water quality, especially with respect to bacteriological water quality, i.e., total coliform and fecal coliform levels, and therefore, changes to the river water quality as it moves to an infiltration well are of much relevance. By using the river water quality and the quality of abstracted water from nearby pumping wells, a probabilistic approach is used to study the variation of probability of clogging under different bacteriological qualities of source water. It is observed that the probability of clogging the pores varies with the natural logarithm of the concentrations of pathogens in source water, and the probabilistic approach has the potential to be used to simulate variations in pathogens in riverbank filtrate.     

连铸机半密闭式循环冷却水系统水质稳定处理技术

连铸机循环冷却水系统是关系到连铸机的生产产量和铸坯质量能否达到设计的要求。为解决这一技术问题,经过实验室试验研究,采用投加水质稳定药剂"复合高效缓蚀剂CW2105+杀菌灭藻剂CW701"的处理技术,解决了软化水循环冷却水半密式系统运行的技术问题,使连铸机结晶器软化水质连续稳定运行。     

转炉浊环水质稳定处理技术

转炉除尘水水质稳定处理是除尘水实现循环使用的关键。对除尘水特点和水质障碍－－结和了简述，并根据试验室试验筛选出适合转炉除尘水系统中的水质稳定药剂配方并在铁厂实际应用中取得了满意效果。     

制氧站循环冷却水全系统除垢清洗及水质稳定

介绍了制氧站循环冷却水系统除垢清洗及水质稳定技术处理。经过除垢清洗及投加CW2105水质稳定剂、CW701杀菌灭藻剂后,解决了制氧站循环冷却水全系统因水质失稳结垢、菌藻滋生,导致制氧站循环水结垢造成制氧设备超温报警的问题。投加水质稳定剂后循环冷却水系统运行稳定,因结垢而影响制氧站安全生产运行的问题得到了有效的解决。     

水稳剂在焦化厂循环冷却水系统的应用

介绍了焦化厂循环水工艺流程，系统水质及水质稳定剂的性能。该水稳剂投入运行后，解决了冷却设备的结垢，腐蚀及菌藻滋生的影响。     

钢铁企业水系统中的“有效水”及其分析方法

敞开间接冷却水是钢铁企业水系统的主要形式，研究补水、用水过程中水量与水质的相互关系，对认识敞开间接冷却水系统的规律是十分必要的。将用水过程中的水量与水质指标结合起来，提出“有效水”概念，建立了数学模型及相关分析方法。对某钢铁企业补水、用水实际案例的研究表明，补水和用户两方面的水质变化都将导致系统补水有效性改变，进而使系统的新水消耗和废水排放量发生改变。与单纯的水量指标相比，“有效水”概念及其分析方法能够更科学地评价敞开冷却水系统的用水特性。