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Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

《化学科学与工程前沿（英文）》 2023年 第17卷 第10期   页码 1606-1615 doi: 10.1007/s11705-022-2200-0

摘要： The increasing applications of seawater desalination technology have led to the wide usage of polyamide reverse osmosis membranes, resulting in a large number of wasted reverse osmosis membranes. In this work, the base nonwoven layer of the wasted reverse osmosis membrane was successfully modified into the hydrophobic membrane via surface deposition strategy including TiO2 and 1H,1H,2H,2H-perfluorooctyltrichlorosilane (PFOTS), respectively. Various techniques were applied to characterize the obtained membranes, which were then used to separate the oil–water system. The optimally modified membrane displayed good hydrophobicity with a contact angle of 135.2° ± 0.3°, and its oil–water separation performance was as high as 97.8%. After 20 recycle tests, the oil–water separation performance remained more than 96%, which was attributed to the film adhesion of the anchored TiO2 and PFOTS layer on the surface. This work might provide a new avenue for recycling the wasted reverse osmosis membrane used in oily wastewater purification.

关键词： oil–water separation     wasted reverse osmosis membrane     hydrophobic modification    

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双膜法水处理工艺在冶金污水回用系统的应用

董金冀,陈小青

《中国工程科学》 2006年 第8卷 第6期   页码 92-94

摘要：

双膜法（超滤+反渗透）水处理工艺具有出水水质好、易于实现自控、占地面积小、节水环保等特点；文章重点介绍了双膜法工艺在邯钢污水回用系统中的应用情况。

关键词： 双膜法水处理工艺     冶金污水     污水回收利用    

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In vitro agonistic and antagonistic endocrine disrupting effects of organic extracts from waste water

Kaifeng RAO, Na LI, Mei MA, Zijian WANG

《环境科学与工程前沿（英文）》 2014年 第8卷 第1期   页码 69-78 doi: 10.1007/s11783-013-0502-7

摘要： Effluents from wastewater treatment plant (WWTP) have been reported to have a broad spectrum of endocrine disrupting compounds (EDCs). The majority of studies have focused on the occurrence of estrogenic activity, while ignoring nuclear hormone receptors (NRs) pathways. In the present study, a battery of in vitro yeast bioassays and a cell bioassay, including antagonistic and agonistic effects on estrogen receptor (ER), androgen receptor (AR), progesterone receptor (PR), estrogen-related receptor (ERR) and aryl hydrocarbon receptor (AHR), were conducted to evaluate the removal efficiencies of EDCs by different treatment processes of a WWTP located in Beijing. Estrogenic, anti-estrogenic, anti- androgenic, anti-progesteronic, anti-ERR and the activation of AHR activities were detected in samples from all treatment processes and the receiving water. The concentration of estrogenic contaminants with estradiol (E ) equivalent concentrations ranged from 0.82 × 10 to 3.54 × 10 g E -EQ·L . The concentration of anti-estrogenic contaminants with 4-hydroxytamoxifen (4-OHT) equivalent concentrations ranged from 1.24 × 10 to 2.36 × 10 g 4-OHT-EQ·L . The concentration of anti-androgenic contaminants ranged from 2.21 × 10 to 3.52 × 10 g flutamide-EQ·L . The concentration of anti-progesteronic contaminants ranged from 3.15 × 10 to 2.71 × 10 g RU486-EQ·L . The concentration of anti-ERR contaminants ranged from 7.09 × 10 to 6.50 × 10 g 4-OHT-EQ·L . The concentration of AHR activators ranged from 1.7 × 10 to 3.4 × 10 g TCDD-EQ·L . These processes including secondary clarifier, coagulation, as well as coal and sand filtration could eliminated 67.2% of estrogenic contaminants, 47.0% of anti-estrogenic contaminants, 98.3% of anti-androgenic contaminants, 88.4% of anti-progesteronic contaminants, 65.4% of anti-ERR contaminants and 46.9% of AHR activators. WWTP effluents contain multiple receptor disruptors may have very complex adverse effects on exposed organisms.

关键词： waste water     in vitro     recombinant yeast assay     ethoxyresorufin-O-deethylase (EROD)     receptor     endocrine    

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Adsorption in combination with ozonation for the treatment of textile waste water: a critical review

Shraddha Khamparia,Dipika Kaur Jaspal

《环境科学与工程前沿（英文）》 2017年 第11卷 第1期 doi: 10.1007/s11783-017-0899-5

摘要： A combination of adsorption with ozonation proved best for dye removal. Toxicity of the textile effluents can be remarkably reduced by combined method. Wide scope for choice of natural materials for treatment of textile dyes. Intrusion of synthetic textile dyes in the ecosystem has been recognized as a serious issue worldwide. The effluents generated from textiles contain large amount of recalcitrant unfixed dyes which are regarded as emerging contaminants in the field of waste water study. Removal of various toxic dyes often includes diverse and complex set of physico-chemical, biological and advanced oxidation processes adopted for treatment. Adsorption in itself is a well-known technique utilized for treatment of textile effluents using a variety of adsorbents. In addition, ozonation deals with effective removal of dyes using high oxidising power of ozone. The review summarizes dye removal study by a combination of ozonation and adsorption methods. Also, to acquire an effective interpretation of this combined approach of treating wastewater, a thorough study has been made which is deliberated here. Results asserts that, with the combined ability of ozone and a catalyst/adsorbent, there is high possibility of total elimination of dyes from waste water. Several synthetically prepared materials have been used along with few natural materials during the combined treatment. However, considering practical applicability, some areas were identified during the study where work needs to be done for effective implementation of the combined treatment.

关键词： Adsorption     Ozonation     Catalytic Ozonation     Textile dyes     Mineralization    

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MILP synthesis of separation processes for waste oil-in-water emulsions treatment

Zorka N. Pintarič,Gorazd P. Škof,Zdravko Kravanja

《化学科学与工程前沿（英文）》 2016年 第10卷 第1期   页码 120-130 doi: 10.1007/s11705-016-1559-1

摘要： This paper presents a novel synthesis method for designing integrated processes for oil-in-water (O/W) emulsions treatment. General superstructure involving alternative separation technologies is developed and modelled as a mixed integer linear programming (MILP) model for maximum annual profit. Separation processes in the superstructure are divided into three main sections of which the pretreatment and final treatment are limited to the selection of one alternative (or bypass) only, while within the intermediate section various combinations of different technologies in series can be selected. Integrated processes composed of selected separation techniques for given ranges of input chemical oxygen demand (COD) can be proposed by applying parametric analyses within the superstructure approach. This approach has been applied to an existing industrial case study for deriving optimal combinations of technologies for treating diverse oil-in-water emulsions within the range of input COD values between 1000 mg?L and 145000 mg?L . The optimal solution represents a flexible and profitable process for reducing the COD values below maximal allowable limits for discharging effluent into surface water.

关键词： oil-in-water emulsion     chemical oxygen demand     superstructure     process synthesis     MILP    

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Sea salt bittern-driven forward osmosis for nutrient recovery from black water: A dual waste-to-resource

Wenchao Xue, May Zaw, Xiaochan An, Yunxia Hu, Allan Sriratana Tabucanon

《环境科学与工程前沿（英文）》 2020年 第14卷 第2期 doi: 10.1007/s11783-019-1211-7

摘要： • A dual “waste-to-resource” application of FO was proposed. • Performance of sea salt bittern as an economic FO draw solution was evaluated. • High quality struvite recovery from black water using FO was demonstrated. • Feed pH is a key factor to control the form of recovered phosphorous. A dual “waste-to-resource” innovation in nutrient enrichment and recovery from domestic black water using a sea salt bittern (SSB)-driven forward osmosis (FO) process is proposed and demonstrated. The performance of SSB as a “waste-to-resource” draw solution for FO was first evaluated. A synthetic SSB-driven FO provided a water flux of 25.67±3.36 L/m2⋅h, which was 1.5‒1.7 times compared with synthetic seawater, 1 M NaCl, and 1 M MgCl2. Slightly compromised performance regarding reverse solute selectivity was observed. In compensation, the enhanced reverse diffusion of Mg2+ suggested superior potential in terms of recovering nutrients in the form of struvite precipitation. The nutrient enrichment was performed using both the pre-filtered influent and effluent of a domestic septic tank. Over 80% of phosphate-P recovery was achieved from both low- and high-strength black water at a feed volume reduction up to 80%‒90%. With an elevated feed pH (~9), approximately 60%‒85% enriched phosphate-P was able to be recovered in the form of precipitated stuvite. Whereas the enrichment performance of total Kjeldahl nitrogen (TKN) largely differed depending on the strength of black water. Improved concentration factor (i.e., 3-folds) and retention (>60%) of TKN was obtained in the high-nutrient-strength black water at a feed volume reduction of 80%, in comparison with a weak TKN enrichment observed in low-strength black water. The results suggested a good potential for nutrient recovery based on this dual “waste-to-resource” FO system with proper management of membrane cleaning.

关键词： Forward osmosis     Sea salt bittern     Black water     Nutrient recovery     pH    

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Hybrid energy harvesting systems for self-powered sustainable water purification by harnessing ambient

《环境科学与工程前沿（英文）》 2023年 第17卷 第10期 doi: 10.1007/s11783-023-1718-9

摘要：

● Energy harvesters harness multiple energies for self-powered water purification.

关键词： Piezocatalysis     Solar energy     Waste heat     Decentralized water treatment     Point-of-use     Nanogenerator    

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Repeated batch fermentation with water recycling and cell separation for microbial lipid production

Yumei WANG, Wei LIU, Jie BAO

《化学科学与工程前沿（英文）》 2012年 第6卷 第4期   页码 453-460 doi: 10.1007/s11705-012-1210-8

摘要： Large waste water disposal was the major problem in microbial lipid fermentation because of low yield of lipid. In this study, the repeated batch fermentation was investigated for reducing waste water generated in the lipid fermentation of an oleaginous yeast CX1 strain. The waste fermentation broth was recycled in the next batch operation after the cells were separated using two different methods, centrifugation and flocculation. Two different sugar substrates, glucose and inulin, were applied to the proposed operation. The result showed that at least 70% of the waste water was reduced, while lipid production maintained satisfactory in the initial four cycles. Furthermore, it is suggested that CX1 cells might produce certain naturally occurring inulin hydrolyzing enzyme(s) for obtaining fructose and glucose from inulin directly. Our method provided a practical option for reducing the waste water generated from microbial lipid fermentation.

关键词： batch fermentation     microbial lipid     Trichosporon cutaneum CX1     flocculation     waste water recycle    

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电渗析组合反渗透过程处理头孢氨苄酶法母液废水的研究

阮慧敏,黄杰,李健,沈江南,王家德,高从堦

《中国工程科学》 2014年 第16卷 第7期   页码 42-46

摘要：

利用电渗析技术脱除头孢氨苄酶法母液废水中的盐分，研究了操作电压、浓缩室与淡化室流速比、温度等因素对电渗析脱盐过程的影响，并研究了反渗透膜法处理脱盐母液废水的膜通量变化趋势。实验结果表明，当淡化室、浓缩室流量均为500 L/h（流速比1∶1），操作电压为25 V，温度＜30 ℃时，电渗析在高效脱盐的同时具有理想的有机物截留率达99.50 %以上，能耗3.65 kW · h/kg；反渗透膜法在处理脱盐母液废水时，膜通量衰减较慢，水回收率达到75.67 %。实验结果表明，利用电渗析、反渗透组合工艺处理头孢氨苄酶法母液废水具有良好的可行性。

关键词： 头孢氨苄     废水     电渗析     反渗透    

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半导体材料器件生产工艺中废气废水的综合治理方法及设备的研究

闻瑞梅,杜国栋

《中国工程科学》 2001年 第3卷 第2期   页码 71-78

摘要：

针对半导体材料、器件生产工艺中的废气和废水的治理，介绍了三种不同的方法和相关设备。①利用碘盐、铜盐和锰盐以及多级逆向喷淋的设备对实验室MOVPE工艺尾气及砷化镓材料制备中砷烷、磷烷污染的治理。②生产规模的半导体材料砷化镓，磷化姻，重掺砷硅单晶材料及器件的工艺中，腐蚀间排放的废气中砷、磷、硫、氟、氯及氮氧化物酸根离子的治理。用椭圆隔板式喷淋吸收塔或双塔式喷淋吸收设备，用氧化剂及碱液吸收的治理方法。③治理半导体工艺废水中砷、总磷、各种酸及重金属等的污染。用碳酸钙中和后，加铁盐经絮凝沉降一体化装置治理废水。经治理后的废气、废水经环保部门检测均达到国家排放标准[1-3]。

关键词： 废水     废气     治理     污染     半导体    

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Integrated approach to winery waste: waste generation and data consolidation

Margarida OLIVEIRA,Elizabeth DUARTE

《环境科学与工程前沿（英文）》 2016年 第10卷 第1期   页码 168-176 doi: 10.1007/s11783-014-0693-6

摘要： The winemaking process involves the generation of a significant amount of waste and wastewater. These residues should be addressed for recycling or treatment before being returned to environment. As each winery is unique in waste generation and disposal, plans for environmentally friendly waste management are not universal and should be tested for their effectiveness. In this study, a diagnostic was made during three years, in different wineries, throughout Portugal, in order to quantify and characterize the waste and the wastewater produced. The results showed that solid waste and wastewater are mainly produced during the harvest period, corresponding to 74% and 87%, respectively. One ton of processed grape approximately produce 0.13 t marc, 0.06 t lees, 0.03 t of stalks and 1.65 m of wastewater. No significant differences ( ≤0.05) were observed for grape marc, lees and wastewater ratios, between years or wineries. With respect to the stalk ratio, there was no effect of year but the winery significantly affected this ratio ( ≤0.05). During the study period the treated wastewater, since diluted, revealed suitable characteristics for irrigation representing an additional source of water. In this regard, the data acquisition and consolidation ensure the transfer of information and experience which constitute an essential step in a support decision tool design.

关键词： waste management     wastewater reuse     winery wastewater    

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The road to sustainable use and waste management of plastics in Portugal

《环境科学与工程前沿（英文）》 2022年 第16卷 第1期   页码 5-5 doi: 10.1007/s11783-021-1439-x

摘要：

• Portugal recycles 34% of the 40 kg/hab year of plastic packaging waste.

关键词： Single-use plastics     Plastic packaging     Plastic waste     Waste management     Waste shipment     Lightweight plastic bags    

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VALORIZATION OF LIVESTOCK WASTE AND CARBON NEUTRALITY

《农业科学与工程前沿（英文）》 2023年 第10卷 第3期   页码 333-340 doi: 10.15302/J-FASE-2023513

摘要： VALORIZATION OF LIVESTOCK WASTE AND CARBON NEUTRALITY

关键词： WASTE     CARBON     VALORIZATION     NEUTRALITY    

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Repercussions of COVID-19 pandemic on solid waste generation and management strategies

《环境科学与工程前沿（英文）》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1407-5

摘要：

• Implication of COVID-19 on medical waste and MSW generation is studied.

关键词： COVID-19     Medical waste     Personal protective equipment     Municipal solid waste     Waste management    

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Industrial solid waste flow analysis of eco-industrial parks: implications for sustainable waste management

Yongpeng Lü, Kai YANG, Yue CHE, Zhaoyi SHANG, Jun TAI, Yun JIAN

《环境科学与工程前沿（英文）》 2012年 第6卷 第4期   页码 575-587 doi: 10.1007/s11783-011-0344-0

摘要： Sustainable waste management in the industrial ecology perspective brings enormous challenges to the existing methodology of waste analysis at the industrial park (IP) scale. In this study, a four-step method was proposed for industrial solid waste (ISW) flow analysis of eco-industrial parks (EIPs) and applied to two IPs in eastern China. According to a park-wide census of 619 industrial enterprises and 105 questionnaires by a survey from 2006 to 2008, the results indicated that: 1) at the enterprise scale, more than 60% of enterprises were small-ISW-generation enterprises which encountered great difficulties on effective waste management; 2) at the IP scale, though the two IPs have set up their own environmental management systems and passed the ISO 14001 certification, the efficiencies of the ISW management systems have yet to be improved in the industrial ecology perspective; and 3) at the regional scale, more than 97% of ISW flowed within the provincial region, indicating that the provincial governments prevented the wastes from flowing into their own “back yard”. Effective waste management should be placed in a broader perspective. Approaches to sustainable waste management may include wastes exchange, efficient waste and information flow, virtual EIP, waste minimization clubs and regionalization of waste management.

关键词： industrial solid waste     waste flow analysis     eco-industrial parks     sustainable waste management     “not in my back yard”    

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标题 作者 时间 类型 操作

Highly hydrophobic oil−water separation membrane: reutilization of waste reverse osmosis membrane

期刊论文

双膜法水处理工艺在冶金污水回用系统的应用

董金冀,陈小青

期刊论文

In vitro agonistic and antagonistic endocrine disrupting effects of organic extracts from waste water

Kaifeng RAO, Na LI, Mei MA, Zijian WANG

期刊论文

Adsorption in combination with ozonation for the treatment of textile waste water: a critical review

Shraddha Khamparia,Dipika Kaur Jaspal

期刊论文

MILP synthesis of separation processes for waste oil-in-water emulsions treatment

Zorka N. Pintarič,Gorazd P. Škof,Zdravko Kravanja

期刊论文

Sea salt bittern-driven forward osmosis for nutrient recovery from black water: A dual waste-to-resource

Wenchao Xue, May Zaw, Xiaochan An, Yunxia Hu, Allan Sriratana Tabucanon

期刊论文

Hybrid energy harvesting systems for self-powered sustainable water purification by harnessing ambient

期刊论文

Repeated batch fermentation with water recycling and cell separation for microbial lipid production

Yumei WANG, Wei LIU, Jie BAO

期刊论文

电渗析组合反渗透过程处理头孢氨苄酶法母液废水的研究

阮慧敏,黄杰,李健,沈江南,王家德,高从堦

期刊论文

半导体材料器件生产工艺中废气废水的综合治理方法及设备的研究

闻瑞梅,杜国栋

期刊论文

Integrated approach to winery waste: waste generation and data consolidation

Margarida OLIVEIRA,Elizabeth DUARTE

期刊论文

The road to sustainable use and waste management of plastics in Portugal

期刊论文

VALORIZATION OF LIVESTOCK WASTE AND CARBON NEUTRALITY

期刊论文

Repercussions of COVID-19 pandemic on solid waste generation and management strategies

期刊论文

Industrial solid waste flow analysis of eco-industrial parks: implications for sustainable waste management

Yongpeng Lü, Kai YANG, Yue CHE, Zhaoyi SHANG, Jun TAI, Yun JIAN

期刊论文