废黄河徐州市区段生态补水回顾与展望

根据废黄河徐州市区段水文、水质状况,论述生态补水的必要性,并回顾多年来补水实施情况与取得的效益,分析存在的问题及原因,建立补水预测模型,对今后补水前景进行了展望。     

保护水资源珍惜水资源

中国现在面临的水资源危机一方面是资源性缺水，另一方面是水质性缺水。保护、珍惜水资源，防污治污迫在眉睫。本文介绍了中国水资源匮乏的情况和节水防污的措施。     

模糊综合评价法在水质变化和水体管理中的应用

应用模糊数学中的模糊综合评价法，对徐州市的地面水体的水质变化趋势进行了探讨，结果表明模糊综合评价法能及时发现水质恶化现象，对水体的管理具有指导作用．     

On zero water discharge solutions in the process industry

This paper presents a mathematical programming approach to analyze the feasibility of zero liquid discharge option in different industries. Mathematical programming methodologies are applied to four industrial cases—a tricresyl phosphate plant, an ethyl chloride plant, a paper mill and a refinery. In each case study various end of pipe and regeneration configurations using different treatment technologies are explored to determine the possibility of zero liquid discharge and its economical feasibility. The results show that the relationship between the cost of regeneration and the cost of freshwater as well as the discharge concentration of the treatment is the determining factor for the feasibility of zero liquid discharge.     

沈阳市水土流失现状及对策措施探讨

针对沈阳市水土流失现状、成因及对策进行了初步探讨 ,并对沈阳市水土流失现状 ,提出了防治对策和措施 ,着重强调了政府的政策导向在综合防治水土流失中的重要作用     

野外便携净水器净水消毒工艺试验研究

野外便携净水器应具杀菌消毒效率高、净水时间短、使用寿命长、操作方便等功能使用要求。通过试验考察了三碘树脂和载银活性炭两种不同净水消毒工艺流程对原水处理效果。结果表明：三碘树脂材料比载银活性炭材料具有灭菌效果好、反应接触时间短、使用时间长等优势，是一类具有良好军事应用价值的野外便携净水器的净水消毒材料。     

常州运河支流水体黑臭监测调查及防治对策

通过对常州运河支流现场观测、调查和水质监测分析，指出了该地区运行支流水体有机污染严重，黑臭发生率高；分析黑臭成因机制，提出了控制对策。     

高温取热炉的水循环与安全运行

主要从水循环和循环倍率的角度，谈高温取热炉的安全性，并特别强调开工5天内是高温取热炉的危险期。     

WASP4在太浦河水质管理中的应用

运用WASP4模型系统模拟结果表明,太浦河的开通将明显改善黄浦江松浦大桥取水口水质。     

Formation control of bromate and trihalomethanes during ozonation of bromide-containing water with chemical addition: Hydrogen peroxide or ammonia?

To ensure the safety of drinking water, ozone (O₃) has been extensively applied in drinking water treatment plants to further remove natural organic matter (NOM). However, the surface water and groundwater near the coastal areas often contain high concentrations of bromide ion (Br^?). Considering the risk of bromate (BrO₃^?) formation in ozonation of the sand-filtered water, the inhibitory efficiencies of hydrogen peroxide (H₂O₂) and ammonia (NH₃) on BrO₃^? formation during ozonation process were compared. The addition of H₂O₂ effectively inhibited BrO₃^? formation at an initial Br^? concentration amended to 350 µg/L. The inhibition efficiencies reached 59.6 and 100% when the mass ratio of H₂O₂/O₃ was 0.25 and > 0.5, respectively. The UV₂₅₄ and total organic carbon (TOC) also decreased after adding H₂O₂, while the formation potential of trihalomethanes (THMsFP) increased especially in subsequent chlorination process at a low dose of H₂O₂. To control the formation of both BrO₃^? and THMs, a relatively large dose of O₃ and a high ratio of H₂O₂/O₃were generally needed. NH₃ addition inhibited BrO₃^? formation when the background ammonia nitrogen (NH₃N) concentration was low. There was no significant correlation between BrO₃^? inhibition efficiency and NH₃ dose, and a small amount of NH₃N (0.2 mg/L) could obviously inhibit BrO₃^? formation. The oxidation of NOM seemed unaffected by NH₃ addition, and the structure of NOM reflected by synchronous fluorescence (SF) scanning remained almost unchanged before and after adding NH₃. Considering the formation of BrO₃^? and THMs, the optimal dose of NH₃ was suggested to be 0.5 mg/L.