硫酸盐还原菌在石油集输系统中的分布规律

对长庆石油一厂2条石油集输系统中硫酸盐还原菌（SRB）的分布规律进行了研究。结果发现,在石油集输系统中,SRB的分布随系统流程的延长呈现增加趋势,并在集中处理站沉降罐处达到最大值。     

硫酸盐还原菌的微生物腐蚀及其防护研究进展

综述了硫酸盐还原菌(SRB)引起微生物腐蚀(MIC)的各种机理及其形成生物膜的腐蚀作用,以及利用微生物防治硫酸盐还原菌腐蚀的研究进展.     

海水冷却器硫酸盐还原菌腐蚀状况与对策

海水中有淤泥、海生物和细菌等，所造成的微生物腐蚀大大加剧了设备的损坏，而且海水冷却器的泄漏具有季节性。由于所用海水污染，形成适合厌氧细菌一硫酸盐还原菌的繁殖环境。导致了设备的加快腐蚀。实验证实了硫酸盐还原菌的大量存在。     

硫酸盐还原菌和异养硝化菌对304不锈钢腐蚀研究

研究了热电厂冷却塔黏泥中的硫酸盐还原菌和硝化菌的代谢特性。采用表面分析技术、腐蚀失重法、电化学技术分析304不锈钢在硫酸盐还原菌和硝化菌共同作用下的腐蚀行为。结果表明,混菌作用下304不锈钢表面形成均匀的生物膜,腐蚀速度小于单菌体系。     

工业冷却水中硫酸盐还原菌诱导腐蚀研究进展

基于SRB的生理学和腐蚀机理,综述了SRB对铜及其合金、不锈钢等工业冷却水系统中换热设备常用材料的腐蚀影响,并从换热设备材料的选择、MIC在线监测技术和对SRB腐蚀的抑制措施3个角度进行了展望.     

耐氧硫酸盐还原菌的研究进展

阐述了硫酸盐还原菌的分类、耐氧硫酸盐还原菌的发展史和耐氧机制,并对它的腐蚀机理做了全面的叙述.     

硫酸盐还原菌诱导腐蚀的电化学噪声分析

基于电化学噪声(EN)和信号处理研究硫酸盐还原菌(SRB)对304不锈钢诱导的腐蚀。将304不锈钢电极分别置于硫酸盐还原菌接种前后的培养基中,利用电化学工作站分别对2种试样的腐蚀进程进行电化学噪声测量,将测得的噪声数据去除直流漂移,再对这些数据进行时域、频域和小波分析。结果表明:通过时域分析得到的标准偏差和噪声电阻可表征腐蚀速率,局部因子则可以区分腐蚀类型。通过频域分析得到的功率谱密度曲线,能表征304不锈钢腐蚀的程度。小波分析则能从不同尺度下分解信号,更加直观、清晰地表征腐蚀进程。利用电化学噪声技术能很好地监测SRB对不锈钢的腐蚀影响,根据不同的需求采用不同的分析方法进行电化学噪声数据分析,才能准确表征腐蚀类型、腐蚀速率以及腐蚀程度。     

嗜热硫酸盐还原菌研究进展

本文对嗜热硫酸盐还原菌的分类、生理特点及其诱发的腐蚀行为进行了阐述。     

金属材料的硫酸盐还原菌腐蚀研究进展

金属材料作为重要的机械工程材料,在应用过程中一直遭受着严重的腐蚀破坏。微生物腐蚀（MIC）是重要的金属材料腐蚀形式,其中以硫酸盐还原菌（SRB）引起的腐蚀最为严重。概述了几种典型金属在油气田、土壤和海水中的SRB腐蚀行为,着重阐述了金属材料SRB腐蚀机理的研究进展。     

硫酸盐还原菌引起的腐蚀及微生物防控研究进展

综述了硫酸盐还原菌（SRB）引起的微生物腐蚀作用机理,同时介绍了应用异养反硝化菌与SRB的生长空间和营养物质的竞争作用以及自养反硝化菌与SRB的拮抗作用及降低来源于SRB的硫化物,起到防止硫酸盐还原菌对油田管道的微生物腐蚀作用。     

三种杀菌剂杀灭硫酸盐还原菌的研究

从工厂循环冷却水水池中采集水样,利用最大可能计数法（MPN法）研究三种杀菌剂HL-501（二氧化氯）、HL-502（氯锭）、HL-507（活性溴）的不同浓度、不同杀菌时间对工业循环冷却水中的硫酸盐还原菌（Sulfate-Reducing Bacteria,SRB）的杀菌效果的影响,并对它们的杀菌情况进行对比。结果表明：与其他两种杀菌剂相比,HL-507是最有效的杀菌剂;当杀菌剂浓度为40 mg/L、杀菌1 h时,HL-507对SRB具有很好的杀菌效果。     

The Establishment and Characteristics of Dominant Syntrophic Propionate Oxidation Bacteria and Sulfate-Reducing Bacteria in a Mixed Culture

The anaerobic bio-treatment of lower COD/SO₄^2- ratio wastewater constitutes a bottle-aqneck due to the limited carbon source. In this type of environment, interactions between acidogenic fermentation bacteria and methane-producing bacteria (MPB) are aided by syntrophic fatty acid oxidation bacteria present in the functional niche; MPB and sulfate-reducing bacteria (SRB) compete with each other due to the availability of sulfate. Therefore, introduction of syntrophic fatty acid oxidation bacteria into an SRB dominated culture can achieve maximum utilization of the substrate, weakening the competition of MPB. In this study, the mixed culture of dominant syntrophic propionate oxidation bacteria (SPOB) and SRB was established and characterized at 35°C. The dominant SPOB and SRB were enriched in a continuous flow stirred-tank reactor and in batch experiments, respectively. Subsequently, an equal proportion of the enriched sludge was mixed and incubated in conical flasks with propionate as the sole substrate. Six parallel experiments (SP1–SP6) were conducted and two of them (SP2 and SP4) were chosen. The results revealed that the sulfate removal efficiencies of SP2 and SP4 were 91.83% and 93.03%, respectively. Furthermore, the outcome of the microbial analysis showed that the dominant microbial communities included Uncultured Smithella spp., Uncultured Desulfobacteraceae bacterium and sequences related to members of the family Desulfovibrio. Excess propionate was mainly syntrophically decomposed via sulfate reduction. Findings from this study could provide valuable information for the establishment of new processes and the regulation of parameters in the treatment of lower COD/SO₄^2- ratio wastewater.     

Novel Imidazolium-Based Gemini Surfactants: Synthesis, Surface Properties, Corrosion Inhibition and Biocidal Activity Against Sulfate-Reducing Bacteria

Three novel imidazolium-based gemini surfactants had been synthesized and characterized using different spectroscopic techniques. The surface properties of the synthesized surfactants were determined using surface tension measurements at 20 °C. The surface parameters including critical micelle concentration (CMC), π _CMC, Pc₂₀, Γ_max and A _min were determined. The synthesized compounds were evaluated as corrosion inhibitors for carbon steel in 0.5 M HCl solution using the weight loss and polarization techniques. The biological activity of these surfactants was evaluated against sulfate reducing bacteria using most probable number method. The results indicate that the synthesized compounds have good surface properties and are proper corrosion inhibitors for low carbon steel, with a high inhibition efficiency observed around their CMC. These compounds exhibit a significant biocidal activity against sulfate reducing bacteria.     

硫酸盐还原菌在酸性矿山废水处理中的应用研究

利用硫酸盐还原菌(SRB)处理酸性矿山废水(AMD)具有诸多优点。文章了综述了SRB及其在酸性矿山废水中的应用现状,最后提出了目前在应用中存在的问题。     

光合细菌对土壤中Cd形态分布的影响

研究了光合细菌球形红细菌(Rhodobacter sphaeroides)在不同理化因素下对土壤中重金属镉形态分布的影响.结果表明,该菌株影响土壤中Cd形态分布的最佳条件为:pH 7、温度35℃及加菌量106个/g土.在最佳条件下,光合细菌能最大降低生物可利用性的Cd形态含量和最大提高生物不可利用性的Cd形态含量.因此...     

Microscopic Methods for Identification of Sulfate-Reducing Bacteria from Various Habitats

This paper is devoted to microscopic methods for the identification of sulfate-reducing bacteria (SRB). In this context, it describes various habitats, morphology and techniques used for the detection and identification of this very heterogeneous group of anaerobic microorganisms. SRB are present in almost every habitat on Earth, including freshwater and marine water, soils, sediments or animals. In the oil, water and gas industries, they can cause considerable economic losses due to their hydrogen sulfide production; in periodontal lesions and the colon of humans, they can cause health complications. Although the role of these bacteria in inflammatory bowel diseases is not entirely known yet, their presence is increased in patients and produced hydrogen sulfide has a cytotoxic effect. For these reasons, methods for the detection of these microorganisms were described. Apart from selected molecular techniques, including metagenomics, fluorescence microscopy was one of the applied methods. Especially fluorescence in situ hybridization (FISH) in various modifications was described. This method enables visual identification of SRB, determining their abundance and spatial distribution in environmental biofilms and gut samples.     

富里酸环境下粉煤灰水泥土的腐蚀性试验研究

研究水泥土在腐蚀环境中的耐久性问题对建筑结构的安全性具有重要意义,粉煤灰作为土木工程材料的重要外加剂,可降低水泥的使用量并可改善水泥土搅拌时的和易性,在实际工程中被广泛使用.为研究掺入粉煤灰的水泥土在泥炭(质)土环境中的腐蚀性问题,针对昆明地区泥炭(质)土环境,通过室内试验模拟其腐蚀环境,将纯水泥土和掺入粉煤灰的水泥土在富里酸环境中浸泡,通过浸泡过程中两组试样的表观变化、耗酸量和腐蚀软化深度的对比,研究纯水泥土与掺入粉煤灰的水泥土在富里酸环境中的腐蚀变化状况.分析结果得出掺入粉煤灰的水泥土在富里酸环境中劣化更为严重,考虑到建筑结构的长期安全性,在泥炭(质)土环境中的水泥土构筑物不宜掺入粉煤灰.     

综合老化腐蚀试验

介绍了综合老化腐蚀试验,包括其循环试验条件、腐蚀试验结果验证及试验方法的改进,指出该方法是检验工业防护涂层实用性的最有效试验方法之一。