Results 1 to 10 of about 980 (98)
Gongye shui chuli, 2021 在污水处理工艺中，污水与污泥的提升、生物处理的曝气与混合、污泥的稳定与处理、辅助机械设备运转等环节均会消耗大量能源。城镇污水厂的节能降耗与资源化利用成为重要发展方向。厌氧氨氧化(Anammox)技术可节省有机碳源，无需曝气，污泥产率低，工艺运行费用少，其在城镇污水主流工艺中的应用可为城镇污水处理厂的资源化利用和节能降耗提供新思路。介绍了Anammox反应的代谢机理，指出主流Anammox工艺在城镇污水处理中存在的问题，提出改造工艺结构、调整工艺运行条件和人工强化调控等措施 ...
蒙小俊, 龚晓松
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Gongye shui chuli, 2021 针对CASS污水处理工艺中提升泵组的调度控制问题，根据不同场合设计了三种协同控制方法。综合考虑被控对象和执行器的工况，第三种控制方法将调度问题分解为泵的投入优先级问题和投入数量问题。结合泵的电压误差、累计以及连续工作时间等状态信息，引入故障评价指标以确定泵的优先级；根据反应池液位划分等级，确定泵的投入数量并设计评价指标。经实验表明，控制方案能有效解决提升泵组调度问题，延长设备寿命，降低故障率。
王维, 孙正, 薄翠梅, 李俊
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Gongye shui chuli, 2020 生物脱氮除磷工艺在城镇污水处理过程中发挥了重要作用，随着排放标准的提升，现有常用工艺出水无法满足排放标准的要求。分析了生物脱氮除磷的机理，比较了不同处理工艺，解析了城镇污水进水碳源不足、不同菌属微生物相互竞争、生物活性影响、污泥膨胀和生物泡沫等生物脱氮除磷工艺存在的问题，提出调整工艺运行条件、改造工艺结构、补充碳源、投加填料、添加化学除磷药剂和使用生物选择器等生物脱氮除磷调控措施。
蒙小俊, 王秋利, 龚晓松
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Gongye shui chuli, 2023 针对某城市污水厂经常出现的低浓度制药废水冲击问题，在分析其进水水质和有机物分子质量分布的基础上，研究了低浓度制药废水冲击对于污水厂AAO工艺的污泥活性、出水水质和去除效果等方面的影响，并评估了所采取的工艺调控措施的效果。结果表明：低浓度制药废水含有芳香烃、长链烷烃和酰胺类大分子有机污染物，B/C为0.13，B/N为1.07，可生化性差，难降解且有生物毒性；低浓度制药废水冲击导致活性污泥中毒老化、性能变差，7 d左右污泥性能及出水水质显著变差；COD去除率从79.10%降至46.66%，氨氮 ...
严博文 +5 more
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Gongye shui chuli, 2016 以内蒙古某生物公司热电厂内的纯水生产系统为例，分析了其反渗透工艺在运行过程中出现的膜污染问题。在现有工艺的基础上进行调整，保证反渗透工艺的稳定运行。系统在调整前，反渗透膜的运行周期仅1个月。通过对系统加药量的控制和工艺的改进，延长了反渗透膜的运行周期，降低了反渗透膜的化学清洗费用。
魏文宇, 杨军
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Ni‐Induced Interface Refinement Enhances Strength‐Ductility Synergy in LPBF‐Processed Ti‐Mo‐Ni Alloy
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Microstructural refinement is a common strategy for strengthening additively manufactured titanium alloys because it promotes phase nucleation. Reducing the α/β interfacial formation energy is an effective way to increase the nucleation rate.
An Li +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Aiming at the problems of insufficient forming quality and poor surface performance in the preparation of Ti‐6Al‐4V alloy by laser powder bed fusion (LPBF), this study proposed a laser in situ forging additive manufacturing (LIF‐AM) technology, which integrates LPBF with femtosecond laser in situ shock forging and realizes defect control and ...
Peng He +10 more
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Time‐Efficient Columnar‐to‐Equiaxed Transition via High Magnetic Field Processing
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT The need to simplify processing routes and improve processing efficiency motivates the development of time‐efficient methods for inducing the columnar‐to‐equiaxed transition (CET) during solidification while tailoring material performance. Conventional multistep CET approaches are time‐consuming and often struggle to simultaneously regulate ...
Chendong Zhao +12 more
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT In laser‐directed energy deposition (LDED) of TiC/Ti6Al4V composites, a low content of micron‐sized TiC provides a good strengthening effect on hardness and strength, but the improvement in plasticity remains a challenge. By introducing synchronous ultrasonic impact treatment (UIT) into the LDED process, an ultrasonic‐assisted LDED (UA‐LDED ...
Yuzhou Zeng +9 more
wiley +1 more source
Gongye shui chuli, 2011 使用MBR工艺处理石化废水,需要针对石化废水的特点,并结合工艺运行的实际情况,采取相应的运行管理措施。通过对产水周期、产水量、曝气量、污泥浓度等运行参数的调整,提高了工艺系统处理能力,降低了处理成本,产水水质完全符合排放标准的要求。在调整运行参数的同时,采取措施控制膜污染速率,确保了工艺系统的运行安全和稳定。
李勇, 钟捷
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