靖边气田含醇污水处理工艺优化

随着陕北靖边气田的不断开发，气井产水量逐年增加，在对气井加注甲醇过程中，气田含醇污水量增大、含醇浓度偏离设计值，同时气田污水具有很强的结垢、腐蚀倾向，影响了甲醇回收装置的稳定运行。为此,从优化含醇污水处理工艺的角度出发，通过采取对高产水井污水分排分储、预处理工艺及操作参数优化、甲醇回收装置参数优化运行试验等措施，减少了含醇污水产量，改善了预处理效果，提高了甲醇回收装置运行效率和产品甲醇质量，保证了目前的含醇污水处理能够满足气田发展的需要。     

临南油田注水系统碳酸钙垢结垢趋势预测

油田注水系统中常见的垢是CaCO3垢。通过分析临南油田回注污水水质参数，对地面注水系统中碳酸钙垢的结垢趋势进行了理论预测，研究了注水管线沿程水质参数中成垢离子Ca^2 ,Mg^2 的变化。结果表明，临南油田处理后的回注污水水质稳定，不会产生碳酸钙垢。     

稠油污水处理现场小试

为解决稠油污水问题，利用辽河油区欢四联的稠油污水进行了现场处理试验，试验结果表明：稠油污水经过斜板隔油池和溶气气浮池预处理后，出水油含量和悬浮物均可达到回注和进热采锅炉的要求，再经生物处理后，COD可达到国家排放标准。     

AB活性污泥法污水处理技术的消化和创新

本文介绍漳州市东区污水处理厂AB法设计、运行的特点，总结了安装、运行的效果，提出了今后改进方法。     

城市污水处理系统中砼耐久性的试验研究

本文系统阐述污水环境下砼腐蚀及耐久性问题,分析了引起砼破坏和腐蚀的各种因素,提出采用高性能砼改善污水环境下砼的耐久性。     

不锈钢热轧浊环水处理工艺设计

介绍了宝钢集团上海五钢不锈钢长型材热轧工程浊循环水处理的工艺设计，探讨了采用化学除油工艺、自动反清洗过滤器等技术和设备，处理不锈钢热轧浊环水的技术特点。     

Distribution and Fate of Escherichia coli in Lake Michigan Following Contamination with Urban Stormwater and Combined Sewer Overflows

Escherichia coli distribution and persistence in nearshore Lake Michigan were assessed following heavy rains and sanitary sewer overflow (SSO) and combined sewer overflow (CSO) events over a 5-year period, including an 18-day period following 25.4 cm of rainfall in which intensive studies were conducted following multiple CSO and SSO events. E. coli levels in the Milwaukee estuary and harbor following SSO and CSO events ranged from 10⁴ to nearly 10⁵ CFU/100 mL, which were significantly higher (p ≤ 0.05) than levels following rainfall alone. Sites outside of the breakwall but within the contamination plume (e.g., within 2 km of the harbor) were an order of magnitude lower. Locations 2–5 km from the harbor ranged from below detection limits, of < 1 to 5 CFU/100 mL. E. coli levels corrected for dilution based on specific conductivity measurements were lower than what would be expected for loss due to dilution alone, suggesting a combination of die-off and dilution, were responsible for the rapid disappearance of these organisms outside of the harbor. E. coli and fecal coliforms measured concurrently demonstrated that fecal coliforms could be recovered longer than E. coli in the open waters of the lake. E. coli isolated directly from sewage treatment plant influent were found to have a marked increase in antibiotic resistance traits for ten antibiotics commonly used in the human population compared with isolates from two animal sources of fecal pollution. However, E. coli obtained from sewage impacted water (n = 2,513) and from stormwater impacted water (n = 1,465) collected the previous year when there were no sewage overflows, were found to have no significant difference (p < 0.05) in the frequency of resistance when comparing the two conditions. E. coli survival characteristics and population dynamics are most likely influenced by multiple factors in complex systems such as the watershed/estuarine/lake environments of the Great Lakes.     

炼厂碱渣处理工艺及设计优化

针对催化裂化装置汽油和液态烃精制产生的含硫废弃物的碱渣处理，讨论了碱渣提酚、碱渣湿式氧化脱臭两种处理工艺的环境治理效果，并就碱渣湿式氧化脱臭工艺如何降低运行成本、减少污水排放等内容进行了探讨。     

石化行业污水回用途径的可行性分析

随着石化行业污水回用技术的成熟,污水回用途径成了制约污水回用的瓶颈。通过对各种回用水途径的可操作性比较,筛选出最佳途径,并通过现场试验,从技术、经济、可操作性方面论证,认为石化污水回用于工业循环冷却水场作为补充水确实可行。     

The biodegradability of two primary alcohol ethoxylate nonionic surfactants under practical conditions,and the toxicity of the biodegradation products to rainbow trout

A field trial has been performed to measure the biodegradability of two typical alcohol ethoxylate nonionic surfactants, “Dobanol” 45-7 and “Dobanol” 45-11, by dosing them to biological filters in a mixture with domestic sewage. Influent levels were 10 and 25 mg l^?1 of each surfactant and 96–98% degradation was achieved within a temperature range of 5–10°C. The surfactants had no adverse effects on the filters in terms of the usual sanitary parameters (BOD, COD, TOC and ammoniacal nitrogen). Tests on the effluents indicated no residual acute lethal toxicity to rainbow trout Salmo gairdneri).