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碳中和 5

CCS 2

CO2利用 2

CO2封存 2

CO2捕集 2

二氧化碳 2

固体氧化物电解池 2

&alpha 1

3D打印 1

Tetrasphaera 1

CAD 装配模型 1

CCSS (CoCentric system studio) 1

CO 1

CO2 1

CO2 加氢 1

CO2地下埋存 1

CO2管道;离岸CCUS;海底管道;管道腐蚀;管道断裂;泄漏监测 1

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CO2 加氢 1

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Application of ultra-sonication, acid precipitation and membrane filtration for co-recovery of protein

Liangliang WEI,Kun WANG,Xiangjuan KONG,Guangyi LIU,Shuang CUI,Qingliang ZHAO,Fuyi CUI

《环境科学与工程前沿(英文)》 2016年 第10卷 第2期   页码 327-335 doi: 10.1007/s11783-014-0763-9

摘要: A novel method was applied to co-recover proteins and humic acid from the dewatered sewage sludge for liquid fertilizer and animal feed. The proteins in sewage sludge were first extracted using the processes of ultra-sonication and acid precipitation, and then the humic acid was recovered via membrane filtration. The extraction efficiency was 125.9 mg humic acid?g VSS volatile suspended solids (VSS) and 123.9 mg proteins?g VSS at the optimal ultrasonic density of 1.5 W?mL . FT-IR spectrum results indicated that the recovered proteins and humic acid showed similar chemical characteristic to the natural proteins and humic acid. The acidic solution (pH 2) could be recycled and used more than 10 times during the co-recovery processes. In addition, the dewatered sludge could be easily biodegraded when the humic acid and proteins are extracted, which was essential for further utilization. These findings are of great significance for recovering valuable nutrient from sewage sludge.

关键词: sewage sludge     co-recovery     proteins     humic acid     recycling     biodegradation rate    

CO, N, and CO/N mixed gas injection for enhanced shale gas recovery and CO geological storage

《能源前沿(英文)》 2023年 第17卷 第3期   页码 428-445 doi: 10.1007/s11708-023-0865-9

摘要: In this work, using fractured shale cores, isothermal adsorption experiments and core flooding tests were conducted to investigate the performance of injecting different gases to enhance shale gas recovery and CO2 geological storage efficiency under real reservoir conditions. The adsorption process of shale to different gases was in agreement with the extended-Langmuir model, and the adsorption capacity of CO2 was the largest, followed by CH4, and that of N2 was the smallest of the three pure gases. In addition, when the CO2 concentration in the mixed gas exceeded 50%, the adsorption capacity of the mixed gas was greater than that of CH4, and had a strong competitive adsorption effect. For the core flooding tests, pure gas injection showed that the breakthrough time of CO2 was longer than that of N2, and the CH4 recovery factor at the breakthrough time (RCH4) was also higher than that of N2. The RCH4 of CO2 gas injection was approximately 44.09%, while the RCH4 of N2 was only 31.63%. For CO2/N2 mixed gas injection, with the increase of CO2 concentration, the RCH4 increased, and the RCH4 for mixed gas CO2/N2 = 8:2 was close to that of pure CO2, about 40.24%. Moreover, the breakthrough time of N2 in mixed gas was not much different from that when pure N2 was injected, while the breakthrough time of CO2 was prolonged, which indicated that with the increase of N2 concentration in the mixed gas, the breakthrough time of CO2 could be extended. Furthermore, an abnormal surge of N2 concentration in the produced gas was observed after N2 breakthrough. In regards to CO2 storage efficiency (Sstorage-CO2), as the CO2 concentration increased, Sstorage-CO2 also increased. The Sstorage-CO2 of the pure CO2 gas injection was about 35.96%, while for mixed gas CO2/N2 = 8:2, Sstorage-CO2 was about 32.28%.

关键词: shale gas     gas injection     competitive adsorption     enhanced shale gas recovery     CO2 geological storage    

Recovery of waste heat in cement plants for the capture of CO

Ruifeng DONG, Zaoxiao ZHANG, Hongfang LU, Yunsong YU

《化学科学与工程前沿(英文)》 2012年 第6卷 第1期   页码 104-111 doi: 10.1007/s11705-011-1166-0

摘要: Large amounts of energy are consumed during the manufacturing of cement especially during the calcination process which also emits large amounts of CO . A large part of the energy used in the making of cement is released as waste heat. A process to capture CO by integrating the recovery and utilization of waste heat has been designed. Aspen Plus software was used to calculate the amount of waste heat and the efficiency of energy utilization. The data used in this study was based on a dry process cement plant with a 5-stage preheater and a precalciner with a cement output of 1 Mt/y. According to the calculations: 1) the generating capacity of the waste heat recovery system is 4.9 MW. 2) The overall CO removal rate was as high as 78.5%. 3) The efficiency of energy utilization increased after the cement producing process was retrofitted with this integrated design.

关键词: cement industry     waste heat     recovery     utilization     CO2 removal    

山西沁水盆地柿庄北区块3#煤层注入埋藏CO2提高煤层气采收率试验和评价

叶建平,张兵,Sam Wong

《中国工程科学》 2012年 第14卷 第2期   页码 38-44

摘要:

对沁水盆地南部柿庄北区块进行了深煤层注入地质和工程评价,认为柿庄北区块适合进行深煤层注入CO2开采煤层气技术的应用;通过SX-001井的微型先导性试验通过现场试验,注入CO2后SX-001井的产气量是注入前的2.45倍;在小于煤岩破裂压力的条件下,每天注入20 t的CO2能够实现顺利注入,并且压力上升速度较慢;注入CO2后,煤岩发生膨胀,局部煤层的渗透率降低,排采一段时间后恢复;在目的煤层中注入的CO2的影响范围内,烃类气体总的置换效率达到14.18 cm3/g。该试验成果证明柿庄北区块通过注入CO2开采煤层气实现了CO2的埋藏,提高了煤层气井的采收率。

关键词: 山西沁水盆地     注入CO2     煤层气     采收率    

Ammonia removal from low-strength municipal wastewater by powdered resin combined with simultaneous recovery

Kuo Fang, Fei Peng, Hui Gong, Huanzhen Zhang, Kaijun Wang

《环境科学与工程前沿(英文)》 2021年 第15卷 第1期 doi: 10.1007/s11783-020-1300-7

摘要: Abstract • Powdered resin was employed for ammonia recovery from municipal wastewater. • Powdered resin achievedefficient ammonia removal under various working conditions. • Co-existing cations indicated competitive adsorption of ammonia. • Ammonia was recoveredby two-stage crystallization coupled with ion exchange. Low-strength municipal wastewater is considered to be a recoverable nutrient resource with economic and environmental benefits. Thus, various technologies for nutrient removal and recovery have been developed. In this paper, powdered ion exchange resin was employed for ammonia removal and recovery from imitated low-strength municipal wastewater. The effects of various working conditions (powdered resin dosage, initial concentration, and pH value) were studied in batch experiments to investigate the feasibility of the approach and to achieve performance optimization. The maximum adsorption capacity determined by the Langmuir model was 44.39 mg/g, which is comparable to traditional ion exchange resin. Further, the effects of co-existing cations (Ca2+, Mg2+, K+) were studied. Based on the above experiments, recovery of ammonia as struvite was successfully achieved by a proposed two-stage crystallization process coupled with a powdered resin ion exchange process. Scanning electron microscopy (SEM) and X-ray diffractometry (XRD) results revealed that struvite crystals were successfully gained in alkaline conditions (pH= 10). This research demonstrates that a powdered resin and two-stage crystallization process provide an innovative and promising means for highly efficient and easy recovery from low-strength municipal wastewater.

关键词: Ammonia removal and recovery     Powdered resin     Crystallization process     Struvite     Co-existing cations    

温室气体提高采收率的资源化利用及地下埋存

沈平平,江怀友

《中国工程科学》 2009年 第11卷 第5期   页码 54-59

摘要: 建立适合中国国情的CO2高效利用和埋存体系;实现CO2减排的社会效益和CO2高效利用的经济效益;发展适合中国国情的CO2埋存地下理论、多相多组分相态理论、多相多组分非线性渗流理论和CO2捕集与储运理论。通过上述基础研究,形成具有自主知识产权的CO2地质埋存和高效利用的综合技术,使中国CO2安全埋存—高效利用研究处于国际水平。

关键词: 温室气体资源化利用     CO2地下埋存     提高采收率    

Co-application of energy uncoupling and ultrafiltration in sludge treatment: Evaluations of sludge reduction, supernatant recovery and membrane fouling control

An Ding, Yingxue Zhao, Zhongsen Yan, Langming Bai, Haiyang Yang, Heng Liang, Guibai Li, Nanqi Ren

《环境科学与工程前沿(英文)》 2020年 第14卷 第4期 doi: 10.1007/s11783-020-1238-9

摘要: Effects of metabolic uncouplers addition on sludge reduction were carried out. TCS addition effectively inhibited ATP synthesis and reduced sludge yield. The effluent quality such as TOC and ammonia deteriorated but not significantly. Suitable dosage retarded biofouling during sludge water recovery by UF membrane. Energy uncoupling is often used for sludge reduction because it is easy to operate and does not require a significant amount of extra equipments (i.e. no additional tank required). However, over time the supernatant extracted using this method can deteriorate, ultimately requiring further treatment. The purpose of this study was to determine the effect of using a low-pressure ultrafiltration membrane process for sludge water recovery after the sludge had undergone an energy uncoupling treatment (using 3,3′,4′,5-tetrachlorosalicylanilide (TCS)). Energy uncoupling was found to break apart sludge floc by reducing extracellular polymeric substances (EPS) and adenosine triphosphate (ATP) content. Analysis of supernatant indicated that when energy uncoupling and membrane filtration were co-applied and the TCS dosage was below 30 mg/L, there was no significant deterioration in organic component removal. However, ammonia and phosphate concentrations were found to increase as the concentration of TCS added increased. Additionally, due to low sludge concentrations and EPS contents, addition of 30–60 mg/L TCS during sludge reduction increased the permeate flux (two times higher than the control) and decreased the hydraulic reversible and cake layer resistances. In contrast, high dosage of TCS aggravated membrane fouling by forming compact fouling layers. In general, this study found that the co-application of energy uncoupling and membrane filtration processes represents an effective alternative method for simultaneous sludge reduction and sludge supernatant recovery.

关键词: Sludge reduction     Energy uncoupling     Ultrafiltration membrane     Membrane fouling    

从绿色化学的角度提高石油采收率——通过二氧化碳泡沫进行封存 Perspective

Jennifer A. Clark, Erik E. Santiso

《工程(英文)》 2018年 第4卷 第3期   页码 336-342 doi: 10.1016/j.eng.2018.05.006

摘要:

通过二氧化碳(CO2)驱油来提高石油采收率(EOR),这作为一种经济上可行的碳封存方法受到了相当大的关注,并且最近许多研究都集中在开发增强的CO2发泡添加剂上。然而,人们对这些添加剂在泄漏事件中潜在的长期环境影响知之甚少,并且考虑到在典型的CO2 EOR操作中注入添加剂的量,其对环境的影响可能是深远的。本文概述了表面活性剂和表面活性剂/基于纳米颗粒的二氧化碳发泡体系的最新发展情况,重点介绍了CO2泡沫泄漏可能对环境造成的影响。本文讨论了生产泡沫系统的最新进展,并着重介绍了开发环境友好型CO2 EOR方法的可能策略。

关键词: 表面活性剂     纳米粒子     碳封存     提高石油采收率    

Improved resilience measure for component recovery priority in power grids

《工程管理前沿(英文)》 2021年 第8卷 第4期   页码 545-556 doi: 10.1007/s42524-021-0161-5

摘要: Given the complexity of power grids, the failure of any component may cause large-scale economic losses. Consequently, the quick recovery of power grids after disasters has become a new research direction. Considering the severity of power grid disasters, an improved power grid resilience measure and its corresponding importance measures are proposed. The recovery priority of failed components after a disaster is determined according to the influence of the failed components on the power grid resilience. Finally, based on the data from the 2019 Power Yearbook of each city in Shandong Province, China, the power grid resilience after a disaster is analyzed for two situations, namely, partial components failure and failure of all components. Result shows that the recovery priorities of components with different importance measures vary. The resilience evaluations under different repair conditions prove the feasibility of the proposed method.

关键词: resilience measure     power grid     importance measure     component recovery    

Technologies for pollutant removal and resource recovery from blackwater: a review

《环境科学与工程前沿(英文)》 2023年 第17卷 第7期 doi: 10.1007/s11783-023-1683-3

摘要:

● Blackwater is the main source of organics and nutrients in domestic wastewater.

关键词: Blackwater     Water-flushing toilet     Sanitation     Nutrient recovery     Water reuse     Sustainable development    

Dissolved methane in anaerobic effluent: Emission or recovery?

《环境科学与工程前沿(英文)》 2022年 第16卷 第4期 doi: 10.1007/s11783-022-1537-4

摘要: Various anaerobic processes have been explored for the energy-efficient treatment of municipal wastewater. However, dissolved methane in anaerobic effluent appears to be a barrier towards the energy and carbon neutrality of wastewater treatment. Although several dissolved methane recovery methods have been developed, their engineering feasibility and economic viability have not yet been assessed in a holistic manner. In this perspective, we thus intend to offer additional insights into the cost-benefit of dissolved methane recovery against its emission.

关键词: Anaerobic treatment     Municipal wastewater     Dissolved methane     Methane recovery     Carbon emission    

China Launched the First Wastewater Resource Recovery Factory in Yixing

《环境科学与工程前沿(英文)》 2022年 第16卷 第1期 doi: 10.1007/s11783-021-1496-1

Highly selective and green recovery of lithium ions from lithium iron phosphate powders with ozone

《化学科学与工程前沿(英文)》 2023年 第17卷 第6期   页码 749-758 doi: 10.1007/s11705-022-2261-0

摘要: Since lithium iron phosphate cathode material does not contain high-value metals other than lithium, it is therefore necessary to strike a balance between recovery efficiency and economic benefits in the recycling of waste lithium iron phosphate cathode materials. Here, we describe a selective recovery process that can achieve economically efficient recovery and an acceptable lithium leaching yield. Adjusting the acid concentration and amount of oxidant enables selective recovery of lithium ions. Iron is retained in the leaching residue as iron phosphate, which is easy to recycle. The effects of factors such as acid concentration, acid dosage, amount of oxidant, and reaction temperature on the leaching of lithium and iron are comprehensively explored, and the mechanism of selective leaching is clarified. This process greatly reduces the cost of processing equipment and chemicals. This increases the potential industrial use of this process and enables the green and efficient recycling of waste lithium iron phosphate cathode materials in the future.

关键词: lithium iron phosphate powder     stoichiometric number     selective leaching     lithium recovery    

“NEW” resource recovery from wastewater using bioelectrochemical systems: Moving forward with functions

Akshay Jain, Zhen He

《环境科学与工程前沿(英文)》 2018年 第12卷 第4期 doi: 10.1007/s11783-018-1052-9

摘要:

Resource recovery from wastewater is a key function of bioelectrochemical systems.

NEW resources to recover include Nutrient, Energy, and Water.

Identifying proper application niches can guide BES research and development.

More efforts should be invested to the application of recovered resources.

A mindset for energy performance and system scaling is critically important.

关键词: Bioelectrochemical systems     Resource recovery     Wastewater treatment     Energy     Nutrients    

Sustainability of metal recovery from E-waste

Biswajit Debnath, Ranjana Chowdhury, Sadhan Kumar Ghosh

《环境科学与工程前沿(英文)》 2018年 第12卷 第6期 doi: 10.1007/s11783-018-1044-9

摘要:

Metal recovery techniques from electronic waste reported in literature.

Metal recovery processes followed in Industries from electronic waste.

Sustainability analysis of metal recovery processes from electronic waste.

关键词: E-waste     Metal recovery     Metal Recovery from E-waste (MREW)     Sustainability    

标题 作者 时间 类型 操作

Application of ultra-sonication, acid precipitation and membrane filtration for co-recovery of protein

Liangliang WEI,Kun WANG,Xiangjuan KONG,Guangyi LIU,Shuang CUI,Qingliang ZHAO,Fuyi CUI

期刊论文

CO, N, and CO/N mixed gas injection for enhanced shale gas recovery and CO geological storage

期刊论文

Recovery of waste heat in cement plants for the capture of CO

Ruifeng DONG, Zaoxiao ZHANG, Hongfang LU, Yunsong YU

期刊论文

山西沁水盆地柿庄北区块3#煤层注入埋藏CO2提高煤层气采收率试验和评价

叶建平,张兵,Sam Wong

期刊论文

Ammonia removal from low-strength municipal wastewater by powdered resin combined with simultaneous recovery

Kuo Fang, Fei Peng, Hui Gong, Huanzhen Zhang, Kaijun Wang

期刊论文

温室气体提高采收率的资源化利用及地下埋存

沈平平,江怀友

期刊论文

Co-application of energy uncoupling and ultrafiltration in sludge treatment: Evaluations of sludge reduction, supernatant recovery and membrane fouling control

An Ding, Yingxue Zhao, Zhongsen Yan, Langming Bai, Haiyang Yang, Heng Liang, Guibai Li, Nanqi Ren

期刊论文

从绿色化学的角度提高石油采收率——通过二氧化碳泡沫进行封存

Jennifer A. Clark, Erik E. Santiso

期刊论文

Improved resilience measure for component recovery priority in power grids

期刊论文

Technologies for pollutant removal and resource recovery from blackwater: a review

期刊论文

Dissolved methane in anaerobic effluent: Emission or recovery?

期刊论文

China Launched the First Wastewater Resource Recovery Factory in Yixing

期刊论文

Highly selective and green recovery of lithium ions from lithium iron phosphate powders with ozone

期刊论文

“NEW” resource recovery from wastewater using bioelectrochemical systems: Moving forward with functions

Akshay Jain, Zhen He

期刊论文

Sustainability of metal recovery from E-waste

Biswajit Debnath, Ranjana Chowdhury, Sadhan Kumar Ghosh

期刊论文