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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

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“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    

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Occurrence of veterinary antibiotics in struvite recovery from swine wastewater by using a fluidized

Zhi-Long Ye, Yujun Deng, Yaoyin Lou, Xin Ye, Shaohua Chen

《环境科学与工程前沿（英文）》 2018年 第12卷 第3期 doi: 10.1007/s11783-018-1015-1

摘要： Recovering phosphorus from livestock wastewater has gained extensive attention. The residue of veterinary antibiotics in the wastewater may be present in the recovered products, thereby posing pharmacological threats to the agricultural planting and human health. This study investigated antibiotic occurrence in the struvite particles recovered from swine wastewater by using a fluidized bed. Results revealed that tetracyclines possessed significant residues in the struvite granules, with the values ranging from 195.2 mg·kg to 1995.0 mg·kg . As for fluoroquinolones, their concentrations varied from 0.4 mg·kg to 1104.0 mg·kg . Struvite particles were of various sizes and shapes and displayed different antibiotic adsorption capacities. The data also showed that the smaller granules contained much more antibiotics than the larger ones, indicating that the fluidized granulation process of struvite crystals plays an important role on the accumulation of antibiotics. For tetracyclines, organic matters and struvite adsorption exerted significant impacts on tetracyclines migration. The outcomes underscore the need to consider the residues of antibiotics in resource recovery from wastewater because they exert pharmacological impacts on the utilization of recovered products.

关键词： Antibiotic     Struvite     Phosphorus recovery     Swine wastewater     Fluidized bed    

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Nitrogen recovery from wastewater using microbial fuel cells

Yong XIAO,Yue ZHENG,Song WU,Zhao-Hui YANG,Feng ZHAO

《环境科学与工程前沿（英文）》 2016年 第10卷 第1期   页码 185-191 doi: 10.1007/s11783-014-0730-5

摘要： Nitrogen is one of major contaminants in wastewater; however, nitrogen, as bio-elements for crop growth, is the indispensable fertilizer in agriculture. In this study, two-chamber microbial fuel cells (MFCs) were first operated with microorganisms in anode chamber and potassium ferricyanide as catholyte. After being successfully startup, the two-chamber MFCs were re-constructed to three-chamber MFCs which were used to recover the and of synthetic wastewater into value-added nitrogenous fertilizer from cathode chamber and anode chamber, respectively. Ferric nitrate was used as the sole electron acceptor in cathode, which also was used to evaluate the recover efficiency in the case major anion of in cathode. The output voltage of these MFCs was about 600–700 mV at an external load of 500 Ω. About 47% in anode chamber and 83% in cathode chamber could be recovered. Higher current density can selectively improve the recovery efficiency of both and . The study demonstrated a nitrogen recovery process from synthetic wastewater using three-chamber MFCs.

关键词： nitrogen recovery     microbial fuel cells (MFCs)     electromigration     wastewater treatment    

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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    

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Energy neutrality potential of wastewater treatment plants: A novel evaluation framework integratingenergy efficiency and recovery

《环境科学与工程前沿（英文）》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1549-0

摘要：

• Framework of indicators was established based on energy efficiency and recovery.

关键词： Wastewater treatment plants     Energy neutrality potential     Energy efficiency     Energy recovery     Evaluation framework    

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Emerging electrochemical processes for materials recovery from wastewater: Mechanisms and prospects

Lingchen Kong, Xitong Liu

《环境科学与工程前沿（英文）》 2020年 第14卷 第5期 doi: 10.1007/s11783-020-1269-2

摘要： Abstract • Mechanisms for selective recovery of materials in electrochemical processes are discussed. • Wastewaters that contain recoverable materials are reviewed. • Application prospects are discussed from both technical and non-technical aspects. Recovering valuable materials from waste streams is critical to the transition to a circular economy with reduced environmental damages caused by resource extraction activities. Municipal and industrial wastewaters contain a variety of materials, such as nutrients (nitrogen and phosphorus), lithium, and rare earth elements, which can be recovered as value-added products. Owing to their modularity, convenient operation and control, and the non-requirement of chemical dosage, electrochemical technologies offer a great promise for resource recovery in small-scale, decentralized systems. Here, we review three emerging electrochemical technologies for materials recovery applications: electrosorption based on carbonaceous and intercalation electrodes, electrochemical redox processes, and electrochemically induced precipitation. We highlight the mechanisms for achieving selective materials recovery in these processes. We also present an overview of the advantages and limitations of these technologies, as well as the key challenges that need to be overcome for their deployment in real-world systems to achieve cost-effective and sustainable materials recovery.

关键词： Materials recovery     Electrosorption     Capacitive deionization     Redox processes     Electrochemical precipitation    

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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    

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Enhanced methane recovery and exoelectrogen-methanogen evolution from low-strength wastewater in an up-flow

Zechong Guo, Lei Gao, Ling Wang, Wenzong Liu, Aijie Wang

《环境科学与工程前沿（英文）》 2018年 第12卷 第4期 doi: 10.1007/s11783-018-1074-3

摘要：

Methane yield increased 22 times from low-strength wastewater by applying conductive fillers.

Conductive fillers accelerated the start-up stage of anaerobic biofilm reactor.

Conductive fillers altered methanogens structure.

关键词： Low-strength wastewater     Methane production     Conductive filler     Microbial community structure    

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Nanoscale Zero-Valent Iron (nZVI) for Heavy Metal Wastewater Treatment: A Perspective

Shaolin Li,Lei Li,Weixian Zhang,

《工程（英文）》 doi: 10.1016/j.eng.2023.08.012

摘要： Industries such as non-ferrous metal smelting discharge billions of gallons of highly toxic heavy metal wastewater (HMW) worldwide annually, posing a severe challenge to conventional wastewater treatment plants and harming the environment. HMW is traditionally treated via chemical precipitation using lime, caustic, or sulfide, but the effluents do not meet the increasingly stringent discharge standards. This issue has spurred an increase in research and the development of innovative treatment technologies, among which those using nanoparticles receive particular interest. Among such initiatives, treatment using nanoscale zero-valent iron (nZVI) is one of the best developed. While nZVI is already well known for its site-remediation use, this perspective highlights its application in HMW treatment with metal recovery. We demonstrate several advantages of nZVI in this wastewater application, including its multifunctionality in sequestrating a wide array of metal(loid)s (> 30 species); its capability to capture and enrich metal(loid)s at low concentrations (with a removal capacity reaching 500 mg·g–1 nZVI); and its operational convenience due to its unique hydrodynamics. All these advantages are attributable to nZVI’s diminutive nanoparticle size and/or its unique iron chemistry. We also present the first engineering practice of this application, which has treated millions of cubic meters of HMW and recovered tons of valuable metals (e.g., Cu and Au). It is concluded that nZVI is a potent reagent for treating HMW and that nZVI technology provides an eco-solution to this toxic waste.

关键词： Nanoscale zero-valent iron     Wastewater     Heavy metal     Resource recovery    

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Coextraction of vanadium and manganese from high-manganese containing vanadium wastewater by a solvent

Zishuai Liu, Yimin Zhang, Zilin Dai, Jing Huang, Cong Liu

《化学科学与工程前沿（英文）》 2020年 第14卷 第5期   页码 902-912 doi: 10.1007/s11705-019-1887-z

摘要： High-manganese containing vanadium wastewater (HMVW) is commonly produced during the vanadium extraction process from vanadium titano-magnetite. HMVW cannot be reused and discharged directly, and is harmful to the environment and affect product quality due to heavy metals in the wastewater. The wastewater is usually treated by lime neutralization, but valuable metals (especially V and Mn) cannot be recovered. In this study, an efficient and environmentally friendly method was developed to recover valuable metals by using a solvent extraction-precipitation process. In the solvent extraction process, 98.15% of vanadium was recovered, and the V O product, with a purity of 98.60%, was obtained under optimal conditions. For the precipitation process, 91.05% of manganese was recovered as MnCO which meets the III grade standard of HG/T 2836-2011. Thermodynamic simulation analysis indicated that MnCO was selectively precipitated at pH 6.5 while Mg and Ca could hardly be precipitated. The results of X-ray diffraction and scanning electron microscopy demonstrated that the obtained V O and MnCO displayed a good degree of crystallinity. The treated wastewater can be returned for leaching, and resources (V and Mn) in the wastewater were utilized efficiently in an environmentally friendly way. Therefore, this study provides a novel method for the coextraction of V and Mn from HMVW.

关键词： high-manganese containing vanadium wastewater     solvent extraction     carbonate precipitation     vanadium titano-magnetite     valuable metal recovery    

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膜技术在化工废水处理中的应用

宋伟杰,杭晓风,万印华

《中国工程科学》 2014年 第16卷 第12期   页码 67-75

摘要：

针对化工生产过程中产生的含有多种可回收成分（多元醇、多元酸、酯类、无机盐）的废水，分别设计和开发了汽提-膜分离-精馏耦合、多级膜浓缩、渗透汽化-精馏等集成工艺。通过膜集成过程与化工生产过程的结合，可以有效地降低废水中的化学需氧量（COD），并实现废水中可回收成分的资源化利用，降低化工废水处理的综合成本，对化工产业的可持续发展具有积极意义。

关键词： 膜集成技术     化工废水     资源化利用     水回用    

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Acidogenic sludge fermentation to recover soluble organics as the carbon source for denitrification in wastewater

Lin Lin, Ying-yu Li, Xiao-yan Li

《环境科学与工程前沿（英文）》 2018年 第12卷 第4期 doi: 10.1007/s11783-018-1043-x

摘要：

CEPS sludge was compared with conventional primary and secondary sludge for the VFAs yield.

Fe-based CEPS sludge exhibited the highest efficiency of organic recovery.

Fermented CEPS sludge liquor provided a sufficient carbon source for denitrification.

99% of nitrate removal was achieved based on the Fe-CEPS and sludge fermentation.

关键词： Sewage sludge     Chemically enhanced primary sedimentation (CEPS)     Acidogenic fermentation     Organic carbon recovery     Nitrogen removal    

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Recovery of Ni(II) from real electroplating wastewater using fixed-bed resin adsorption and subsequent

Tong Li, Ke Xiao, Bo Yang, Guilong Peng, Fenglei Liu, Liyan Tao, Siyuan Chen, Haoran Wei, Gang Yu, Shubo Deng

《环境科学与工程前沿（英文）》 2019年 第13卷 第6期 doi: 10.1007/s11783-019-1175-7

摘要： • Resin adsorption and subsequent electrodeposition were used for nickel recovery. • Treated wastewater can meet the Electroplating Pollutant Discharge Standard. • The spent resin is completely regenerated by 3 BV of 4% HCl solution. • 95.6% of nickel in concentrated eluent was recovered by electrodeposition. Effective recovery of high-value heavy metals from electroplating wastewater is of great significance, but recovering nickel ions from real electroplating wastewater as nickel sheet has not been reported. In this study, the pilot-scale fixed-bed resin adsorption was conducted to recover Ni(II) ions from real nickel plating wastewater, and then the concentrated Ni(II) ions in the regenerated solution were reduced to nickel sheet via electrodeposition. A commercial cation-exchange resin was selected and the optimal resin adsorption and regeneration conditions were investigated. The resin exhibited an adsorption capacity of 63 mg/g for Ni(II) ions, and the average amount of treated water was 84.6 bed volumes (BV) in the pilot-scale experiments. After the adsorption by two ion-exchange resin columns in series and one chelating resin column, the concentrations of Ni(II) in the treated wastewater were below 0.1 mg/L. After the regeneration of the spent resin using 3 BV of 4% (w/w) HCl solution, 1.5 BV of concentrated neutral nickel solution (>30 g/L) was obtained and used in the subsequent electrodeposition process. Using the aeration method, alkali and water required in resin activation process were greatly reduced to 2 BV and 3 BV, respectively. Under the optimal electrodeposition conditions, 95.6% of Ni(II) in desorption eluent could be recovered as the elemental nickel on the cathode. The total treatment cost for the resin adsorption and regeneration as well as the electrodeposition was calculated.

关键词： Nickel removal     Ion exchange     Electroplating wastewater     Regeneration     Electrodeposition    

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曝气生物滤池处理工业综合废水提标改造技术研究

林齐,宋永会,李冬,张杰

《中国工程科学》 2013年 第15卷 第3期   页码 95-102

摘要：

针对曝气生物滤池工艺不具备脱氮除磷功能，特别是在处理工业综合废水时出水不能稳定达标排放的问题，提出了“化学除磷+气浮除油+水解酸化+前置反硝化曝气生物滤池”的全流程处理工艺，并通过中试研究对处理流程以及各个处理单元运行参数进行了优化，在水解酸化2.0 h，投加混凝剂硫化铁量为40.0 mg/L，气浮溶气压力3.5 kg/cm2，AO池125 %回流比，水力停留时间为20.0 min的条件下，其出水达到国家一级A排放标准的要求。并对升级改造的建设和运行费用进行了核算，为同类污水处理厂的升级改造工程提供理论依据和数据支持。

关键词： 工业综合废水     污水处理厂     曝气生物滤池     升级改造    

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标题 作者 时间 类型 操作

China Launched the First Wastewater Resource Recovery Factory in Yixing

期刊论文

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

Akshay Jain, Zhen He

期刊论文

Occurrence of veterinary antibiotics in struvite recovery from swine wastewater by using a fluidized

Zhi-Long Ye, Yujun Deng, Yaoyin Lou, Xin Ye, Shaohua Chen

期刊论文

Nitrogen recovery from wastewater using microbial fuel cells

Yong XIAO,Yue ZHENG,Song WU,Zhao-Hui YANG,Feng ZHAO

期刊论文

Dissolved methane in anaerobic effluent: Emission or recovery?

期刊论文

Energy neutrality potential of wastewater treatment plants: A novel evaluation framework integratingenergy efficiency and recovery

期刊论文

Emerging electrochemical processes for materials recovery from wastewater: Mechanisms and prospects

Lingchen Kong, Xitong Liu

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

Enhanced methane recovery and exoelectrogen-methanogen evolution from low-strength wastewater in an up-flow

Zechong Guo, Lei Gao, Ling Wang, Wenzong Liu, Aijie Wang

期刊论文

Nanoscale Zero-Valent Iron (nZVI) for Heavy Metal Wastewater Treatment: A Perspective

Shaolin Li,Lei Li,Weixian Zhang,

期刊论文

Coextraction of vanadium and manganese from high-manganese containing vanadium wastewater by a solvent

Zishuai Liu, Yimin Zhang, Zilin Dai, Jing Huang, Cong Liu

期刊论文

膜技术在化工废水处理中的应用

宋伟杰,杭晓风,万印华

期刊论文

Acidogenic sludge fermentation to recover soluble organics as the carbon source for denitrification in wastewater

Lin Lin, Ying-yu Li, Xiao-yan Li

期刊论文

Recovery of Ni(II) from real electroplating wastewater using fixed-bed resin adsorption and subsequent

Tong Li, Ke Xiao, Bo Yang, Guilong Peng, Fenglei Liu, Liyan Tao, Siyuan Chen, Haoran Wei, Gang Yu, Shubo Deng

期刊论文

曝气生物滤池处理工业综合废水提标改造技术研究

林齐,宋永会,李冬,张杰

期刊论文