Results 41 to 50 of about 984,647 (187)
Gongye shui chuli, 2011 针对油田采出水的水质特点, 介绍了超滤膜技术及其应用特点以及超滤对采出水中悬浮物、油、细菌和有机物等污染物的去除特点和效果。讨论了一直制约着超滤膜技术处理油田采出水应用中的膜污染问题, 提出了其改进措施和相关切实可行的超滤膜污染清洗方法, 并指出了今后超滤技术在油田采出水处理中的发展研究方向。
高学理, 潘振江
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Ultrasound in Obstetrics &Gynecology, Volume 67, Issue 6, Page 806-814, June 2026.ABSTRACT Objective To investigate the incidence of pre‐eclampsia (PE) and the predictive performance of the Fetal Medicine Foundation (FMF) first‐trimester PE screening algorithm across pregnancies conceived using assisted reproductive technology (ART), after ovulation induction (OI) and through spontaneous conception (SC).
A. S. L. Kjaer +23 more
wiley +1 more source
Wildlife Letters, Volume 4, Issue 2, Page 73-82, June 2026.Eimeria saudiensis represents a genus of apicomplexan parasites capable of inducing coccidiosis in Arabian oryx. Our research concentrated on the morphological and molecular investigation of Eimeria spp. in the captive oryx herd in Oman. The therapeutic and management practices employed at the Mammals Breeding Center were reassessed to diminish ...
Khalid Al‐Habsi +7 more
wiley +1 more source
Gongye shui chuli, 2019 米桑油田开发产生大量的高温采出水，为满足油田生产和环保要求，需配套建设采出水处理系统，处理规模为2万m3/d。原油脱水系统来水含油量≤ 1 000 mg/L、悬浮物≤ 500 mg/L、硫化氢≤ 200 mg/L。针对采出水物性，工艺采用"调储缓冲+聚结除油+混凝沉降+气提脱硫+两级过滤"压力式流程对采出水进行处理，全流程密闭隔氧，处理后净化水达标用于油田注水。项目投产运行两年多，装置运行效果稳定，具有很好的工程借鉴意义。
张志庆 +4 more
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Gongye shui chuli, 2021 针对江西某聚氨酯公司生产废水甲醛含量高，COD和氨氮浓度高，以及可生化性差的特点，设计采用“预处理-生化反应-深度处理”的组合工艺对其进行处理。其中，预处理通过聚糖反应去除废水中的甲醛，并提高废水的可生化性；生化反应采用A2/O工艺，主要去除废水中的COD和氨氮；生化处理出水采用臭氧催化氧化进行深度处理。工程实际运行结果表明，最终处理出水甲醛≤5 mg/L，COD≤500 mg/L，氨氮≤45 mg/L，出水水质达到园区接管标准。
沈克军 +3 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Composite materials hold significant potential for abrasive sealing, yet composite materials used for abrasive sealing fall short in service durability under extreme environments. Here, a controllable strategy for adjusting pore structure is proposed, aiming to design a YSZ(ESP)/BN@ZrO2‐polyester coating with hybrid micron/nanometer ...
Shuang Yu +8 more
wiley +1 more source
Gongye shui chuli, 2009 采用室内模拟的聚合物驱采出水,考察了聚合物对其稳定性的影响,以该采出水为介质,研制出一种阳离子型反相破乳剂HEU-7,并对其破乳机理进行了讨论。结果表明,HEU-7对模拟污水及渤海油田现场聚驱采出水均有较好的除油效果,当其用量为60mg/L时,30min后除油率达到90%以上。
沈明欢, 王金本
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Gongye shui chuli, 2021 目前，国内已建高含硫气田均采用“正压气提+密闭氧化除硫”工艺去除气田采出水中的硫化物。该工艺应用过程中由于正压气提对气田采出水中硫化物的去除率低，从而造成吨水处理成本高。为降低处理成本，开展了负压气提工艺现场中试研究，确定了进水pH、气水比、塔内工作压力等最佳工艺参数，出水硫化物去除率达到99%。对YB29污水站进行负压气提工艺改造，整体运行数据与中试试验基本吻合，吨水处理费用降低至56元。
王伟, 朱国, 杨光
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Layered double hydroxides (LDHs) are attractive non‐noble catalysts for overall water splitting (OWS), yet their hydrogen evolution reaction (HER) activity is often limited by suboptimal *H adsorption and a paucity of accessible sites. Herein, we introduce an oxygen‐vacancy (Ov) engineering strategy to construct ultrathin Ni‐Fe LDH nanosheets ...
Qi Liu +8 more
wiley +1 more source